EXPLORE MORE CATEGORIES
- Home
- ยป
- Our Product Range
- »
- Siprotec 4 Relay
Siprotec 4 Relay
Our product range includes a wide range of siemens siprotec 4 siprotec 7sj64, siemens siprotec 4 7sj66, siemens siprotec 4 siprotec 7sa63, siemens siprotec 4 siprotec 7sj62, siemens siprotec 4 siprotec 7sj61 and siemens siprotec 4 siprotec 7sj63.
Siemens Siprotec 4 Siprotec 7SJ64
Get Latest Price
Product Brochure
Product Details:
| Model Name/Number | 7SJ64 |
| Relay Type | Voltage Relay |
| Brand | Siemens |
| Voltage | 220 V |
| Current | 12 A |
| Material | MS |
| Usage/Application | Industrial |
The SIPROTEC 7SJ64 Protection Relay can be used as a protective control and monitoring relay for distribution feeders and transmission lines of any voltage in networks that are earthed (grounded), low-resistance earthed, unearthed, or of a compensated neutral point structure. The relay is suited for networks that are radial or looped, and for lines with single or multi-terminal feeds. The SIPROTEC 7SJ64 is equipped with a synchronization function which provides the operation modes ?synchronization check? (classical) and ?synchronous/asynchronous switching? (which takes the CB mechanical delay into consideration). Motor protection comprises undercurrent monitoring, starting time supervision, restart inhibit, locked rotor, load jam protection as well as motor statistics.
Features
The SIPROTEC 7SJ64 is featuring the “flexible protection functions”. Up to 20 protection functions can be added according to individual requirements. Thus, for example, rate-of-frequency-change protection or reverse power protection can be implemented.
The relay provides easy-to-use local control and automation functions. The number of controllable switchgear depends only on the number of available inputs and outputs. The integrated programmable logic (CFC) allows the user to implement their own functions, e.g. for the automation of switchgear (interlocking). CFC capacity is much larger compared to SIPROTEC 7SJ63 due to extended CPU power. The user is able to generate user-defined messages as well.
The flexible communication interfaces are open for modern communication architectures with control systems.
Hardware
-
4 current transformers
-
4 voltage transformers
-
7 to 48 binary inputs
-
5 to 21 output relays
-
Up tp 4 high-duty relays
-
Text display or graphical display
-
Flush-mounting housing, surface-mounting or detached display
Communication interfaces
-
System port
– IEC 61850
– PROFINET
– DNP3 TCP
– IEC 60870-5-103
– PROFIBUS-DP
– DNP 3.0
– MODBUS RTU
-
Service port
– DIGSI 4,
– Modem
– Thermobox -
Additional port
– Thermobox -
Front port
– DIGSI 4
-
Time synchronization via IRIG B/DCF77
Protection functions
-
Overcurrent protection
-
Directional overcurrent protection
-
Sensitive dir./non-dir. earth-fault detection
-
Displacement voltage
-
Intermittent earth-fault protection
-
Directional intermittent ground fault protection
-
High-impedance restricted earth fault
-
Inrush restraint
-
Motor protection
-
Overload protection
-
Temperature monitoring
-
Under-/overvoltage protection
-
Under-/overfrequency protection
-
Rate-of-frequency-change protection
-
Power protection (e.g. reverse, factor)
-
Undervoltage-controlled reactive power protection
-
Breaker failure protection
-
Negative-sequence protection
-
Phase-sequence monitoring
-
Synchronization
-
Auto-reclosure
-
Fault locator
-
Lockout
Get Best QuoteRequest A Callback
Siemens Siprotec 4 7sj66
Get Latest Price
Product Brochure
Product Details:
| Model Name/Number | 7sj66 |
| Relay Type | Voltage Relay |
| Brand | Siemens |
| Voltage | 220 V |
| Current | 12 A |
| Material | MS |
| Usage/Application | Industrial |
Siemens SIPROTEC 4 7SJ66 Multifunction Protection numerical Relay is numerical protection, control, and monitoring device. SIPROTEC 7SJ66 is featuring “flexible protection functions”. Up to 20 protection functions can be added to Siprotec 7SJ66 multifunction relay according to individual requirements. Thus, for example, rate-of-frequency-change protection or reverse power protection can be implemented. The relay provides control of the circuit-breaker, further switching devices, and automation functions. The integrated Graphical logic editor (CFC) allows the user to implement its own functions, e. g. for the automation of switchgear (interlocking). The communication interfaces support the easy integration into modern communication networks.
SIPROTEC 7SJ66 Multifunction protection:
Overcurrent protection
Directional overcurrent protection
Sensitive directional ground-fault detection
Displacement voltage
Intermittent ground-fault protection
Directional intermittent ground fault protect
High-impedance restricted ground fault
Inrush restraint
Motor protection
Overload protection
Temperature monitoring
Under-/overvoltage protection
Under-/overfrequency protection
Rate-of-frequency-change protection
Power protection (e.g. reverse, factor)
Undervoltage controlled reactive power protection
Breaker failure protection
Negative-sequence protection
Phase-sequence monitoring
Synchro-check
Fault locator
Lockout
Auto-reclosure
Control functions/programmable logic
Commands for control of CB and of isolators
Graphical visualization of switch positions
Control via keyboard, binary inputs, DIGSI 4, or SCADA system
User-defined logic with CFC (e.g. interlocking)
Monitoring functions
Operational measured values V, I, f
Energy metering values Wp, Wq
Circuit-breaker wear monitoring
Slave pointer
Trip circuit supervision
Fuse failure monitor
8 oscillographic fault records
Motor statistics
Languages
English, Spanish, Russian, Polish, and Turkish
Communication interfaces
System interface protocols: IEC 60870-5-103, IEC 61850, Modbus RTU, DNP3
Electrical and optical interface
RSTP (Redundancy Protocol for Ethernet)
Service interface for DIGSI 4 or RTD-Box
Front USB interface for DIGSI 4
Time synchronization via IRIG B, DCF77
Hardware
Spring-type terminals
4 current transformers
4 voltage transformers
16/22/36 binary inputs
7/10/23 output relays
Graphic or 8 line display
SIPROTEC 4 leads the way in integrating protection, control, measurement, and automation functions in one device. The homogenous system platform, the unique DIGSI 4 engineering program, and extensive experience of more than a million successfully operating devices in the field worldwide – thanks to these unique advantages, SIPROTEC 4 enjoys top recognition among users worldwide. SIPROTEC 4 is the industry standard for digital protection technology today in all fields of application.
Get Best QuoteRequest A Callback
Siemens Siprotec 4 Siprotec 7SA63
Get Latest Price
Product Brochure
Product Details:
| Model Name/Number | 7SA63 |
| Relay Type | Voltage Relay |
| Brand | Siemens |
| Voltage | 220 V |
| Current | 12 A |
| Material | MS |
| Usage/Application | Industrial |
The SIPROTEC 7SA63 distance protection relay is a universal relay for protection, control and automation with a graphic display on the basis of the SIPROTEC 4 system.Its high level of flexibility makes it suitable to be implemented at all voltage levels. With this relay you are ideally equipped for the future: it offers security of investment and also saves on operating costs.-High-speed tripping time-Impedance setting range allows very small settings for the protection of very short lines-Self-setting detection for power swing frequencies up to 7 Hz-Current transformer saturation detector prevents non-selective trapping by distance protection in the event of CT saturation.-Phase-segregated teleportation for improved selectivity and availability-Digital relay-to-relay communication by means of an integrated serial protection data interface-Adaptive auto-reclosure (ADT)
PROTECTION FUNCTIONS
Non-switched distance protection with 6 measuring systems (21/21N)
High resistance earth-fault protection for single and three-phase tripping (50N, 51N, 67N)
Earth-fault detection in isolated and resonant-earthed networks
Tele (pilot) protection (85)
Fault locator (FL)
Power-swing detection/tripping (68/68T)
Phase-overcurrent protection (50/51)
Switch-onto-fault protection(50HS)
STUB bus overcurrent protection (50STUB)
Overvoltage/undervoltage protection(59/27)
Over/underfrequency protection (81O/U)
Auto-reclosure (79)
Synchro-check (25)
Breaker failure protection (59BF)
Thermal overload protection (49)
CONTROL FUNCTIONS
Commands for control of c.b. and isolators
MONITORING FUNCTIONS
Trip circuit supervision (74TC)
Self-supervision of the relay
Measured-value supervision
Event logging
Fault logging
Oscillographic fault recording
Switching statistics
FRONT DESIGN
Easy operation with numeric keys
Function keys
LEDs for local alarm
PC front port for convenient relay setting
COMMUNICATION INTERFACES
Front interface for connecting a PC
System interface for connecting to a control system via various protocols
??? IEC 60870-5-103 protocol
??? PROFIBUS-FMS/-DP
??? DNP 3.0
??? IEC 61850 Ethernet1 serial protection data interface for teleprotection
Rear-side service/modem interface
Time synchronization via ??? IRIG-B or DCF 77 or ??? System interface
SIPROTEC 4 leads the way in integrating protection, control, measurement, and automation functions in one device. The homogenous system platform, the unique DIGSI 4 engineering program, and extensive experience of more than a million successfully operating devices in the field worldwide ??? thanks to these unique advantages, SIPROTEC 4 enjoys top recognition among users worldwide. SIPROTEC 4 is the industry standard for digital protection technology today in all fields of application.
Get Best QuoteRequest A Callback
Siemens Siprotec 4 Siprotec 7SJ62
Get Latest Price
Product Brochure
Product Details:
| Model Name/Number | 7SJ62 |
| Relay Type | Voltage Relay |
| Brand | Siemens |
| Voltage | 220 V |
| Current | 12 A |
| Material | MS |
| Usage/Application | Industrial |
The Siprotec 7SJ62 protection relay can be used for line protection of high and medium voltage networks with earthed (grounded), low-resistance earthed, isolated or compensated neutral point. With regard to motor protection, the SIPROTEC 4, Siprotec 7SJ62 protection relays is suitable for asynchronous machines of all sizes. The relay performs all functions of backup protection supplementary to transformer differential protection. 7SJ62 is featuring the “flexible protection functions”. Up to 20 protection functions can be added according to individual requirements. Thus, for example, a rate-of-frequency-change protection or reverse power protection can be implemented. The relay provides control of the circuit-breaker and automation functions. The integrated programmable logic (CFC) allows the user to implement their own functions, e. g. for the automation of switchgear (interlocking). The user is also allowed to generate user-defined messages. The flexible communication interfaces are open for modern communication architectures with control systems.
PROTECTION FUNCTIONS
-
Overcurrent protection (definite-time/inverse-time/user-def.)
-
Directional overcurrent protection (definite-time/inverse-time/user-def.)
-
Sensitive dir. earth-fault detection
-
Displacement voltage
-
Intermittent earth-fault protection
-
Directional intermittent ground fault protection
-
High-impedance restricted earth fault
-
Inrush restraint
-
Motor protection
-
Overload protection
-
Temperature monitoring
-
Under-/overvoltage protection
-
Under-/overfrequency protection
-
Rate-of-frequency-change protection
-
Power protection (e.g. reverse, factor)
-
Undervoltage controlled reactive power protection
-
Breaker failure protection
-
Negative-sequence protection
-
Phase-sequence monitoring
-
Synchro-check
-
Auto-reclosure
-
Fault locator
-
Lockout
CONTROL FUNCTIONS/PROGRAMMABLE LOGIC
-
Commands for control of a circuit-breaker and of isolators
-
Position of switching elements is shown on the graphic display
-
Control via keyboard, binary inputs, DIGSI 4 or SCADA system
-
User-defined logic with CFC (e.g. interlocking)
MONITORING FUNCTIONS
-
Operational measured values V,l,f
-
Energy metering values Wp,Wq
-
Circuit-breaker wear monitoring
-
Slave pointer
-
Trip circuit supervision
-
Fuse failure monitor
-
8 oscillographic fault records
-
Motor Statistics
COMMUNICATION INTERFACES
-
System interface
– IEC 60870-5-103/ IEC 61850
– PROFIBUS-FMS/-DP
– DNP 3.0/MODBUS RTU -
Service interface for DIGSI 4 (modem)
-
Front interface for DIGSI 4
-
Time synchronization via IRIG B/DCF77
HARDWARE
-
4 current transformers
-
3/4 voltage transformers
-
8/11 binary inputs
-
8/6 output relays
Get Best QuoteRequest A Callback
Siemens Siprotec 4 Siprotec 7SJ61
Get Latest Price
Product Brochure
Product Details:
| Model Name/Number | 7SJ61 |
| Relay Type | Voltage Relay |
| Brand | Siemens |
| Voltage | 220 V |
| Current | 12 A |
| Material | MS |
| Usage/Application | Industrial |
The SIPROTEC 4 7SJ61 Overcurrent Protection Relay can be used for line protection of high and medium voltage networks with earthed (grounded), low-resistance earthed, isolated or compensated neutral point. When protecting motors, the SIPROTEC 4 7SJ61 is suitable for asynchronous machines of all sizes. The relay performs all functions of backup protection supplementary to transformer differential protection.The relay provides control of the circuit breaker, further switching devices and automation functions. The integrated programmable logic (CFC) allows the user to implement their own functions, e. g. for the automation of switchgear (interlocking). The user is also allowed to generate user-defined messages. The flexible communication interfaces are open for modern communication architectures with control systems.
PROTECTION FUNCTIONS
Overcurrent protection (definite-time/inverse-time/user-def.)
Sensitive earth-fault detection
Intermittent earth-fault protection
High-impedance restricted earth fault
Inrush – Current detection
Motor protection
– Undercurrent monitoring
– Starting time supervision
– Restart inhibit
– Locked rotor
– Load jam protectionOverload protection
Temperature monitoring
Breaker failure protection
Negative-sequence protection
Auto-reclosure
Lockout
CONTROL FUNCTIONS/PROGRAMMABLE LOGIC
Commands for control of a circuit-breaker and of isolators
Position of switching elements is shown on the graphic display
Control via keyboard, binary inputs, DIGSI 4 or SCADA system
User-defined logic with CFC (e.g. interlocking)
MONITORING FUNCTIONS
Operational measured values
Circuit-breaker wear monitoring
Slave pointer
Time metering of operating hours
Trip circuit supervision
8 oscillographic fault records
Motor statistics
COMMUNICATION INTERFACES
System interface
– IEC 60870-5-103, IEC 61850
– PROFIBUS-FMS/-DP
– DNP 3.0/MODBUS RTUService interface for DIGSI 4 (modem)
Front interface for DIGSI 4
Time synchronization via IRIG B/DCF77
HARDWARE
4 current transformers
3/8/11 binary inputs
4/8/6 output relays
Get Best QuoteRequest A Callback
Siemens Siprotec 4 Siprotec 7SJ63
Get Latest Price
Product Brochure
Product Details:
| Model Name/Number | \7SJ63 |
| Relay Type | Voltage Relay |
| Brand | Siemens |
| Voltage | 220 V |
| Current | 12 A |
| Material | MS |
| Usage/Application | Industrial |
The SIPROTEC 4 7SJ63 can be used as a protective control and monitoring relay for distribution feeders and transmission lines of any voltage in networks that are earthed (grounded), low-resistance earthed, unearthed, or of a compensated neutral point structure. The relay is suited for networks that are radial or looped, and for lines with single or multi-terminal feeds. Regarding the time-overcurrent/directional time overcurrent protection the characteristics can be either definite time, inverse time or user-defined.The SIPROTEC 4 7SJ63 is equipped with motor protection applicable for asynchronous machines of all sizes.Motor protection comprises undercurrent monitoring, starting time supervision, restart inhibit locked rotor.The relay provides easy-to-use local control and automation functions. The number of controllable switchgear depends only on the number of available inputs and outputs. The integrated programmable logic (CFC) allows the user to implement their own functions, e.g. for the automation of switchgear (interlocking). The user is able to generate user-defined messages as well.
PROTECTION FUNCTIONS
Overcurrent protection (definite-time/inverse-time/user-def.)
Directional overcurrent protection (definite-time/inverse-time/user-def.)
Sensitive dir./non-dir. earth-fault detection
Displacement voltage
Intermittent earth-fault protection
High-impedance restricted earth fault
Inrush restraint
Motor protection
Overload protection
Temperature monitoring
Under-/overvoltage protection
Under-/overfrequency protection
Breaker failure protection
Negative-sequence protection
Phase-sequence monitoring
Auto-reclosure
Fault locator
Lockout
CONTROL FUNCTIONS/PROGRAMMABLE LOGIC
Flexible number of switching devices
Position of switching elements is shown on the graphic display
Local/remote switching via keyoperated switch
Control via keyboard, binary inputs, DIGSI 4 or SCADA system
Extended User-defined logic with CFC (e.g. interlocking)
MONITORING FUNCTIONS
Operational measured values V, I, f,…
Energy metering values Wp,Wq
Circuit-breaker wear monitoring
Slave pointer
Trip circuit supervision
Fuse failure monitor
8 oscillographic fault records
COMMUNICATION INTERFACES
System interface
– IEC 60870-5-103/ IEC 61850
– PROFIBUS-FMS/-DP
– DNP 3.0/MODBUS RTUService interface for DIGSI 4 (modem)
Front interface for DIGSI 4
Time synchronization via IRIG B/DCF77
SIPROTEC 4 leads the way in integrating protection, control, measurement, and automation functions in one device. The homogenous system platform, the unique DIGSI 4 engineering program, and extensive experience of more than a million successfully operating devices in the field worldwide – thanks to these unique advantages, SIPROTEC 4 enjoys top recognition among users worldwide. SIPROTEC 4 is the industry standard for digital protection technology today in all fields of application.
Get Best QuoteRequest A Callback
Siemens Siprotec 4 7UM61
Get Latest Price
Product Brochure
Product Details:
| Model Name/Number | 7UM61 |
| Brand | Siemens |
| Voltage | 220 V |
| Usage/Application | Industrial |
| Coil Type | Latching |
| Country of Origin | Made in India |
The SIPROTEC 4 7UM62 protection relays can do more than just protect. They also offer numerous additional functions. Be it earth faults, short-circuits, overloads, over voltage, over frequency or under frequency asynchronous conditions, protection relays assure continued operation of power stations. The SIPROTEC 4 7UM62 protection relay is a compact unit which has been specially developed and designed for the protection of small, medium-sized and large generators.They integrate all the necessary protection functions and are particularly suited for the protection of:-Hydro and pumped-storage generators-Co-generation stations-Private power stations using regenerative energy sources such as wind or biogases-Diesel generator stations-Gas-turbine power stations-Industrial power stations-Conventional steam power stations.
The SIPROTEC 4 7UM62 includes all necessary protection functions for large synchronous and asynchronous motors and for transformers. The integrated programmable logic functions (continuous function chart CFC) offer the user high flexibility so that generators, motors, and transformers adjustments can easily be made to the varying power station requirements on the basis of special system conditions. The flexible communication interfaces are open for modern communication architectures with the control system.The following basic functions are available for all versions:-Current differential protection for generators, motors, and transformers-Stator earth-fault protection-Sensitive earth-fault protection-Stator overload protection-Overcurrent- time protection (either definite time or inverse time)-Definite-time overcurrent protection with directionality, Undervoltage and overvoltage protection-Undervoltage and overvoltage protection-Underfrequency and over frequency protection-External trip coupling- Forward-power and reverse power protection-Negative-sequence protection-Breaker failure protection-Rotor earth-faults protection (fn, R-measuring)Motor starting time supervision and restart inhibit for motors
Standard version
Scope of basic version plus:
-
Inadvertent energization protection
-
100 %-stator earth-fault protection with 3rd harmonic
-
Impedance protection
Full version
Scope of standard version plus:
-
DC voltage protection
-
Overcurrent protection during start-ups
-
Earth-current differential protection
-
Out-of-step protection
Additional version
Available for each version:
-
Sensitive rotor earth-fault protection (1-3 Hz method)
-
Stator earth-fault protection with 20 Hz voltage
-
Rate-of-frequency-change protection
-
Vector jump supervision
MONITORING FUNCTIONS
-
Trip circuit supervision
-
Fuse failure monitor
SIPROTEC 4 leads the way in integrating protection, control, measurement, and automation functions in one device. The homogenous system platform, the unique DIGSI 4 engineering program, and extensive experience of more than a million successfully operating devices in the field worldwide – thanks to these unique advantages, SIPROTEC 4 enjoys top recognition among users worldwide. SIPROTEC 4 is the industry standard for digital protection technology today in all fields of application.
Get Best QuoteRequest A Callback
Siemens Siprotec 4 Siprotec 7UT613
Get Latest Price
Product Brochure
Product Details:
| Model Name/Number | 7UT613 |
| Relay Type | Voltage Relay |
| Brand | Siemens |
| Voltage | 220 V |
| Current | 12 A |
| Material | MS |
| Usage/Application | Industrial |
The SIPROTEC 7UT613 protection relay is used for fast and selective fault clearing of short-circuits in transformers of all voltage levels and also in rotating electric machines like motors and generators, for short lines and busbars. The specific application can be chosen by parameterization. In this way, an optimal adaptation of the relay to the protected object can be achieved. In addition to the differential function, a backup overcurrent protection for 1 winding/ star point is integrated into the relay. Optionally, a low or high-impedance restricted earth fault protection, negative-sequence protection, and breaker failure protection can be used.
7UT613 features 4 voltage inputs. With this option an overvoltage and under-voltage protection are available as well as frequency protection, reverse/forward power protection, fuse failure monitor, and overexcitation protection. With external temperature monitoring boxes (thermo-boxes) temperatures can be measured and monitored in the relay. Therefore, complete thermal monitoring of a transformer is possible, e.g. hot-spot calculation of the oil temperature.
7UT613 features full coverage of applications without external relays by the option of multiple protection functions e.g. overcurrent protection is available for each winding or measurement location of a transformer. Other functions are available twice: ground-fault differential protection, breaker failure protection, and overload protection. Furthermore, up to 12 user-defined (flexible) protection functions may be activated by the customer with the choice of measured voltages, currents, power, and frequency as input variables.
The relays provide easy-to-use local control and automation functions. The integrated programmable logic (CFC) allows the users to implement their own functions, e.g. for the automation of switchgear (interlocking). User-defined messages can be generated as well. The flexible communication interfaces are open for modem communication architectures with the control systems.
SIPROTEC 7UT613 PROTECTION RELAY FUNCTION OVERVIEWDifferential protection for 2- up to 3-winding transformers (3-/1-phase)
Differential protection for motors and generators
Differential protection for short 2 up to 3 terminal lines
Differential protection for busbars up to 9 feeders (phase-segregated or with summation CT)
Differential protection with phase-segregated measurement
Sensitive measuring for low-fault currents
Fast tripping for high-fault currents
Restraint against the inrush of transformer
Phase-/earth overcurrent protection
Overload protection with or without temperature measurement
Negative-sequence protection
Breaker failure protection
Low-or high-impedance restricted earth fault (REF)
Voltage protection functions
Commands for control of c.b. and isolators
Control via keyboard, binary inputs, DIGSI 4, or SCADA system
User-defined logic with CFC
Self-supervision of the relay
Trip circuit supervision
Oscillographic fault recording
Permanent differential and restraint current measurement, the extensive scope of operational values
PC front port for setting with DIGSI 4
System interface IEC 61850 Ethernet -IEC 60870-5-103 protocol – PROFIBUS-FMS/-DP – MODBUS or DNP 3.0
Service interface for DIGSI 4 (modem)/ temperature monitoring (thermo-box)
Time synchronization via IRIG-B/DCF 77
Get Best QuoteRequest A Callback
Siemens Siprotec 4 Siprotec 7UT612
Get Latest Price
Product Brochure
Product Details:
| Model Name/Number | 7UT612 |
| Relay Type | Voltage Relay |
| Brand | Siemens |
| Voltage | 220 V |
| Current | 12 A |
| Material | MS |
| Usage/Application | Industrial |
SIEMENS SIPROTEC 4 SIPROTEC 7UT612 TRANSFORMER DIFFERENTIAL PROTECTION RELAY
The SIPROTEC 7UT612 differential protection numerical relay is used for fast and selective fault clearing of short-circuits in transformers of all voltage levels and also in rotating electric machines like motors and generators, for short lines and busbars. The protection relay can be parameterized for use with three-phase and single-phase transformers. The specific application can be chosen by parameterization.
In this way, an optimal adaption of the relay to the protected object can be achieved. In addition to the differential function, a backup overcurrent protection for 1 winding/star point is integrated into the relay. Optionally, a low or high-impedance restricted earth fault protection, negative sequence protection, and a breaker failure protection can be used. With external temperature monitoring boxes (thermo-boxes) temperatures can be measured and monitored in the relay. Therefore, complete thermal monitoring of a transformer is possible, e.g. hot-spot calculation of the oil temperature.
The relays provide easy-to-use local control and automation functions. The integrated programmable logic (CFC) allows the users to implement their own functions, e.g. for the automation of switchgear (interlocking). User-defined messages can be generated as well.The flexible communication interfaces are open for modem communication architectures with the control system. The protection relay can be parameterized for use with three-phase and single-phase transformers. In addition to this, a thermal replica is integrated for the supervision of the ohmic losses in the plant.
SIPROTEC 7UT612 PROTECTION RELAY FUNCTION OVERVIEWDifferential protection for two-winding transformers (3-/1-phase)
Differential protection for motors and generators
Differential protection for short lines
Differential protection for busbars up to 7 feeders (phase-segregated or with summation CT)
Differential protection with phase-segregated measurement
Sensitive measuring stage for low-fault currents
Fast tripping for high-fault currents
Restraint against the inrush of the transformer
Phase/ground-overcurrent protection
Overload protection with or without temperature measurement
Negative-sequence protection
Breaker failure protection
Low-or high-impedance restricted earth fault (REF)
Commands for control of c.b. and isolators
Control via keyboard, binary inputs, DIGSI 4, or SCADA system
User-defined logic with CFC
Self-supervision of the relay
Trip circuit supervision
Oscillographic fault recording
Permanent differential and restraint current measurement, the extensive scope of operational values
PC front port for setting with DIGSI 4
System interface IEC 61850 Ethernet – IEC 60870-5-103 protocol – PROFIBUS-FMS – PROFIBUS-DP – MODBUS – DNP 3.0
Service interface for DIGSI 4 (modem)/temperature monitoring (thermo-box)
Time synchronization via IRIG-B/DCF 77
Get Best QuoteRequest A Callback
Siemens Siprotec 4 6MD66
Get Latest Price
Product Brochure
Product Details:
| Model Name/Number | 6MD66 |
| Brand | Siemens |
| Voltage | 220 V |
| Usage/Application | Industrial |
| Coil Type | Latching |
| Number Of Poles | 2 Pole |
| Contact Form | DPDT |
| Country of Origin | Made in India |
The 6MD66 high-voltage bay control unit is the control unit for high voltage bays from the SIPROTEC 4 relay series. Because of its integrated functions, it is an optimum, low-cost solution for high-voltage switch bays. The 6MD66 high-voltage bay controller unit also has the same design (look and feel) as the other protection and combined units of the SIPROTEC 4 relay series. Configuration is performed in a standardised way with the easy-to-use DIGSI 4 configuration tool.For operation, a large graphic display with a keyboard is available. The important operating actions are performed in a simple and intuitive way, e.g. alarm list display or switch gear control. The operator panel can be mounted separately from the unit, if required. Thus, flexibility with regard to the mounting position of the unit is ensured. Integrated key-operated switches control the switching authority and authorisation for switching without interlocking. High-accuracy measurement ( 0.5 %) for voltage, current and calculated values P and Q are another feature of the unit.
APPLICATION
Integrated synchro-check for synchronized closing of the circuit-breaker
Breaker-related protection functions (Breaker Failure 50BF, Auto-reclosure 79)
Automation can be configured easily by graphic means with CFC
Flexible, powerful measured-value processing
Connection for 4 voltage transformers, 3 current transformers, two 20 mA transducers
Volume of signals for high voltage
Up to 14 1 ?-pole circuit-breakers can be operated
Up to 11 2-pole switching devices can be operated
Up to 65 indication inputs, up to 45 command relays
Can be supplied with 3 volumes of signals as 6MD662 (35 indications, 25 commands), 6MD663 (50 indications, 35 commands) or 6MD664 (65 indications, 45 commands); number of measured values is the same
Switchgear interlocking
Inter-relay communication with other devices of the 6MD66 series, even without a master station interface with higher level control and protection
Suitable for redundant master station
Display of operational measured values V, I, P, Q, S, f, cos (power factor) (single and three-phase measurement)
Limit values for measured values
Can be supplied in a standard housing for cubicle mounting or with a separate display for free location of the operator elements
4 freely assignable function keys to speed up frequently recurring operator actions
Communication interfaces
System interface
– IEC 61850 Ethernet
– IEC 60870-5-103 protocol
– PROFIBUS-FMS/-DP
– Service interface forDIGSI 4 (modem)
– Front interface forDIGSI 4
– Time synchronization via IRIGB/DCF77
SIPROTEC 4 leads the way in integrating protection, control, measurement, and automation functions in one device. The homogenous system platform, the unique DIGSI 4 engineering program, and extensive experience of more than a million successfully operating devices in the field worldwide – thanks to these unique advantages, SIPROTEC 4 enjoys top recognition among users worldwide. SIPROTEC 4 is the industry standard for digital protection technology today in all fields of application.
Get Best QuoteRequest A Callback
Siemens Siprotec 4 7SA61
Get Latest Price
Product Brochure
Product Details:
| Model Name/Number | 7SA61 |
| Relay Type | Voltage Relay |
| Brand | Siemens |
| Voltage | 220 V |
| Current | 12 A |
| Material | MS |
| Usage/Application | Industrial |
Siemens Siprotec 4 Siprotec 7SA61 Distance Protection Relay For All Voltage Levels
The SIPROTEC 7SA6 distance protection relay is a universal relay for protection, control and automation with a graphic display on the basis of the SIPROTEC 4 system.Its high level of flexibility makes it suitable to be implemented at all voltage levels. With this relay you are ideally equipped for the future: it offers security of investment and also saves on operating costs.-High-speed tripping time-Impedance setting range allows very small settings for the protection of very short lines-Self-setting detection for power swing frequencies up to 7 Hz- Current transformer saturation detector prevents non-selective trapping by distance protection in the event of CT saturation.-Phase-segregated teleportation for improved selectivity and availability-Digital relay-to-relay communication by means of an integrated serial protection data interface-Adaptive auto-reclosure (ADT).
PROTECTION FUNCTIONS
Non-switched distance protection with 6 measuring systems (21/21N)
High resistance earth-fault protection for single and three-phase tripping (50N, 51N, 67N)
Earth-fault detection in isolated and resonant-earthed networks
Tele (pilot) protection (85)
Fault locator (FL)
Power-swing detection/tripping (68/68T)
Phase-overcurrent protection (50/51)
Switch-onto-fault protection(50HS)
STUB bus overcurrent protection (50STUB)
Overvoltage/undervoltage protection(59/27)
Over/underfrequency protection (81O/U)
Auto-reclosure (79)
Synchro-check (25)
Breaker failure protection (50BF)
Thermal overload protection (49)
CONTROL FUNCTIONS
Commands for control of c.b. and isolators
MONITORING FUNCTIONS
Trip circuit supervision (74TC)
Self-supervision of the relay
Measured-value supervision
Event logging
Fault logging
Oscillographic fault recording
Switching statistics
FRONT DESIGN
Easy operation with numeric keys
Function keys
LEDs for local alarm
PC front port for convenient relay setting
COMMUNICATION INTERFACES
Front interface for connecting a PC
System interface for connecting to a control system via various protocols
– IEC 60870-5-103 protocol
– PROFIBUS-FMS/-DP
– DNP 3.0
– IEC 61850 Ethernet1 serial protection data interface for teleprotection
Rear-side service/modem interface
Time synchronization via – IRIG-B or DCF 77 or – System interface
Get Best QuoteRequest A Callback
Siemens Siprotec 4 7SA64
Get Latest Price
Product Brochure
Product Details:
| Model Name/Number | 7SA64 |
| Relay Type | Voltage Relay |
| Brand | Siemens |
| Voltage | 220 V |
| Current | 12 A |
| Material | MS |
| Usage/Application | Industrial |
The SIPROTEC 7SA64 distance protection relay is a universal relay for protection, control and automation with a graphic display on the basis of the SIPROTEC 4 system. Its high level of flexibility makes it suitable to be implemented at all voltage levels. With this relay you are ideally equipped for the future: it offers security of investment and also saves on operating costs. High-speed tripping time-Impedance setting range allows very small settings for the protection of very short lines-Self-setting detection for power swing frequencies up to 7 Hz-Current transformer saturation detector prevents non-selective tripping by distance protection in the event of CT saturation.-Phase-segregated teleprotection for improved selectivity and availability-Digital relay-to-relay communication by means of an integrated serial protection data interface-Adaptive auto-reclosure (ADT)
PROTECTION FUNCTIONS
-
Non-switched distance protection with 6 measuring systems (21/21N)
-
High resistance earth-fault protection for single and three-phase tripping (50N, 51N, 67N)
-
Earth-fault detection in isolated and resonant-earthed networks
-
Tele (pilot) protection (85)
-
Fault locator (FL)
-
Power-swing detection/tripping (68/68T)
-
Phase-overcurrent protection (50/51)
-
Switch-onto-fault protection (50HS)
-
STUB bus overcurrent protection (50STUB)
-
Overvoltage/undervoltage protection (59/27)
-
Over/underfrequency protection (81O/U)
-
Auto-reclosure (79)
-
Synchro-check (25)
-
Breaker failure protection (50BF)
-
Thermal overload protection (49)
CONTROL FUNCTIONS
-
Commands for control of c.b. and isolators
MONITORING FUNCTIONS
-
Trip circuit supervision (74TC)
-
Self-supervision of the relay
-
Measured-value supervision
-
Event logging
-
Fault logging
-
Oscillographic fault recording
-
Switching statistics
FRONT DESIGN
-
Easy operation with numeric keys
-
Function keys
-
LEDs for local alarm
-
PC front port for convenient relay setting
COMMUNICATION INTERFACES
-
Front interface for connecting a PC
-
System interface for connecting to a control system via various protocols
– IEC 60870-5-103 protocol
– PROFIBUS-FMS/-DP
– DNP 3.0
– IEC 61850 Ethernet -
1 serial protection data interface for teleprotection
-
Rear-side service/modem interface
-
Time synchronization via – IRIG-B or DCF 77 or – System interface
SIPROTEC 4 leads the way in integrating protection, control, measurement, and automation functions in one device. The homogenous system platform, the unique DIGSI 4 engineering program, and extensive experience of more than a million successfully operating devices in the field worldwide – thanks to these unique advantages, SIPROTEC 4 enjoys top recognition among users worldwide. SIPROTEC 4 is the industry standard for digital protection technology today in all fields of application.
Get Best QuoteRequest A Callback
Siemens Siprotec 4 7SD610
Get Latest Price
Product Brochure
Product Details:
| Model Name/Number | 7SD610 |
| Relay Type | Voltage Relay |
| Brand | Siemens |
| Voltage | 220 V |
| Current | 12 A |
| Material | MS |
| Usage/Application | Industrial |
The Siprotec 7SD610 Protection Relay is a differential protection relay suitable for all types of applications and incorporating all those functions required for differential protection of lines, cables, and transformers. Transformers and compensation coils within the differential protection zone are protected by means of integrated functions, which were previously to be found only in transformer differential protection. It is also well-suited for complex applications such as series and parallel compensation of lines and cables.It is designed to provide differential and directional backup protection for all voltage levels and types of networks.
The relay features high speed and phase-selective short circuit measurement. The unit is thus suitable for single-phase and three-phase fault clearance.Digital data communication for differential current measurement is effected via fiber-optic cables, networks or pilot wires connections so that the line ends can be quite far apart. The serial protection interface (R2R interface) of the relay can flexibly be adapted to the requirements of all existing communication media. If the communication method is changed, flexible retrofitting of communication modules to the existing configuration is possible.Apart from the main protection function, i.e. the differential protection, the 7SD610 has a full range of configurable emergency and/or backup protection functions such as phase and earth over current protection with directional elements if voltage transformers are connected. Overload, under and over-voltage/frequency and breaker failure protection round off the functional scope of the 7SD610.
Protection Functions
-
Differential protection for universal use with power lines and cables on all voltage levels with phase-segregated measurement (87L)
-
Two line ends capability
-
Suitable for transformers in protected zone (87T)
-
Restricted earth-fault protection (87N) if a transformer is within the protection zone
-
Well-suited for serial compensated lines
-
Two independent differential stages: one stage for sensitive measuring for high resistance faults and one stage for high current faults and fast fault clearance
-
Breaker-failure protection (50BF)
-
Phase and earth overcurrent protection with directional element (50, 50N, 51, 51N, 67, 67N)
-
Phase-selective intertripping (85)
-
Overload protection (49)
-
Over/undervoltage protection (59/27)
-
Over/underfrequency protection (81O/U)
-
Auto-reclosure single/three-pole (79)
Control functions
-
Command inputs for control of CB and disconnectors (isolators)
Monitoring functions
-
Self-supervision of relay and protection data (R2R) communication
-
Trip circuit supervision (74TC)
-
8 oscillographic fault records
-
CT-secondary current supervision
-
Event logging / fault logging
-
Switching statistics
Front design
-
User-friendly local operation
-
PC front port for relay setting
-
Function keys and 14 LEDs f. local alarm
Communication interfaces
-
1 serial protection data (R2R) interface
-
Front interface for PC connection
-
System interface
-
IEC 61850 Ethernet
-
IEC 60870-5-103 protocol
-
PROFIBUS-DP, DNP 3.0 and MODBUS
-
-
Service / modem interface (rear)
-
Time synchronization via IRIG-B, DCF77 or system interface
Get Best QuoteRequest A Callback
Siemens Siprotec 4 7SD5
Get Latest Price
Product Brochure
Product Details:
| Model Name/Number | 7SD5 |
| Relay Type | Voltage Relay |
| Brand | Siemens |
| Voltage | 220 V |
| Current | 12 A |
| Material | MS |
| Usage/Application | Industrial |
The SIPROTEC 7SD5 Protection Relay provides full scheme differential protection and incorporates all functions usually required for the protection of power lines. It is designed for all power and distribution levels and protects lines with two up to six line ends. The relay is designed to provide high-speed and phase-selective fault clearance.
The relay uses fiber-optic cables or digital communication networks to exchange telegrams and includes special features for the use in multiplexed communication networks. Also, pilot wires connections can be used with an external converter. This contributes toward improved reliability and availability of the electrical power system. The relay is suitable for single and three-phase tripping applications for two up to six line ends.Also, transformers and compensation coils within the differential protection zone are protected as are serial and parallel-compensated lines and cables.
The relays may be employed with any type of system grounding. The relay also provides a full-scheme and non-switched distance protection as an optional main 2 protection. Several tele protection schemes ensure maximum selectivity and high-speed tripping time. The units measure the delay time in the communication networks and adaptively match their measurements accordingly. A special GPS-option allows the use of the relays in communication networks, where the delay time in the transmit and receive path may be quite different.
The 7SD5 has the following features:-2 full-scheme main protections in one unit (differential and distance protection)-High-speed tripping 10 15 ms-The serial protection interfaces (R2R interfaces) of the relays can flexibly be adapted to the requirements of all communication media available.-If the communication method is changed, flexible retrofitting of communication modules to the existing configuration is possible.-Tolerates loss of one data connection in a ring topology (routing in 120 ms). The differential protection scheme is fully available in a chain topology.-Tolerates loss of one data connection in a ring topology (routing in 120 ms). The differential protection scheme is fully available in a chain topology.-Browser-based commissioning tool.-Fault locator for one and two terminal measurements for high accuracy on long lines with high load and high fault resistance.-Capacitive charge current compensation increases the sensitivity of the differential protection on cables and long lines.
SIPROTEC 7SD5 RELAY PROTECTION FUNCTIONSDifferential protection with phasesegregated measurement (87L, 87T)
Restricted ground-fault protection (87N) if a transformer is within the protection zone
Sensitive measuring stage for high-resistance faults
Non-switched distance protection with 6 measuring systems (21/21N)
High resistance ground (earth)-fault protection for single and three-pole tripping (50N/51N/67N)
Phase-selective intertripping (85)
Ground-fault detection in isolated and resonant-grounded networks
Tele (pilot) protection (85/21, 85/67N)
Weak-infeed protection (27WI)
Fault locator (FL)
Power swing detection/tripping (68/68T)
3-stage overcurrent protection (50, 50N, 51, 51N)
STUB bus protection (50 STUB)
Switch-onto-fault protection (50HS)
Over/undervoltage protection (59/27)
Over/underfrequency protection (81O/U)
Auto-reclosure (79), Synchro-check (25)
Breaker failure protection (50BF)
Overload protection (49)
Lockout function (86)
Commands for control of circuit-breakers (isolators)
Get Best QuoteRequest A Callback
Siemens Siprotec 4 7SS52
Get Latest Price
Product Brochure
Product Details:
| Model Name/Number | 7SS52 |
| Brand | Siemens |
| Voltage | 220 V |
| Current | 12 A |
| Material | MS |
| Usage/Application | Industrial |
The SIPROTEC 7SS52 numerical protection is a selective, reliable and fast protection for busbar faults and breaker failure in medium, high and extra-high voltage substations with various possible busbar configurations.The protection is suitable for all switchgear types with iron-core or linearized current transformers. The short tripping time is especially advantageous for applications with high fault levels or where fast fault clearance is required for power system stability.The modular hardware allows the protection to be optimally matched to the busbar configuration. The decentralized arrangement allows the cabling costs in the substation to be drastically reduced. The 7SS52 busbar protection caters for single, double or triple busbar systems with or without and quadruple busbar systems without transfer bus with up to: 48 bays, 16 bus couplers, and 24 sectionalizing disconnectors and 12 busbar sections.
SIPROTEC 7SS52 BUSBAR PROTECTION FUNCTIONSBusbar differential protection
Selective zone tripping
Very short tripping time (<15 ms)
Extreme stability against external fault, short saturation-free time (?2 ms)
Phase-segregated measuring systems
Integrated check zone
48 bays can be configured
12 busbar sections can be protected
Bay-selective intertripping
Breaker failure protection (single-phase with/without current)
5 operation modes, selectable per bay
Separate parameterization possible for busbar and line faults
Independently settable delay times for all operation modes
2-stage operation bay trip repeat/trip busbar
Intertrip facility (via teleprotection interface)
Low-current mode using the circuitbreaker auxiliary contacts
End-fault protection with intertrip or bus zone trip
Backup overcurrent protection per bay unit (definite-time or inverse-time)
Independent breaker failure protection per bay unit
FEATURES
Distributed or centralized installation
Easy expansion capability
Integrated commissioning aids
Centralized user-friendly configuration/parameterization with DIGSI
Universal hardware
FO interface
– IEC 60870-5-103 protocolElectrical interface
– IEC 61850 protocol with EN 100 module (firmware V4.6)
SIPROTEC 4 leads the way in integrating protection, control, measurement, and automation functions in one device. The homogenous system platform, the unique DIGSI 4 engineering program, and extensive experience of more than a million successfully operating devices in the field worldwide – thanks to these unique advantages, SIPROTEC 4 enjoys top recognition among users worldwide. SIPROTEC 4 is the industry standard for digital protection technology today in all fields of application.
Get Best QuoteRequest A Callback
Siemens Siprotec 4 7VK61
Get Latest Price
Product Brochure
Product Details:
| Model Name/Number | 7VK61 |
| Relay Type | Voltage Relay |
| Brand | Siemens |
| Voltage | 220 V |
| Current | 12 A |
| Material | MS |
| Usage/Application | Industrial |
The SIPROTEC 4 breaker management relay 7VK61 is a highly flexible autorecloser, synchro-check, and circuit breaker failure protection unit. This unit is used for the single and three pole auto-reclosure of a circuit-breaker after this circuit breaker has tripped due to a fault.The synchro-check function ensures that the two circuits being reconnected by closing the circuit-breaker are within a defined safe operating state before the CLOSE command is issued.The 7VK61 is also applicable as circuit breaker failure protection. A breaker failure occurs when the circuit-breaker fails to correctly open and clear the fault after single or three-pole trip commands have been issued by the protection.It is then necessary to trip the relevant busbar zone (section) to ensure fault clearance. Together with the above-mentioned protection functions, the following additional functions of the 7VK61 can be applied: end-fault protection, pole-discrepancy protection, overvoltage protection and under voltage protection. As a member of the numerical SIPROTEC 4 relay family, it also provides control and monitoring functions and therefore supports the user with regard to a cost-effective power system management.
PROTECTION FUNCTIONS
Single and/or three-pole auto-reclosure
Synchro-check with live/dead line/bus measurement
Closing under asynchronous conditions (consideration of CB operating time)
Circuit-breaker failure protection with two stages (single and three-pole with/without current)
End-fault protection
Pole-discrepancy protection
Overvoltage/undervoltage protection
CONTROL FUNCTION
Commands f. ctrl. of CB and isolators
MONITORING FUNCTIONS
Operational measured values
Self-supervision of the relay
Event buffer and fault protocols
Oscillographic fault recording
Monitoring of CB auxiliary contacts
Switching statistics
FEATURES
All functions can be used separately
Initiation/start by phase-segregated or 3-pole trip commands
Auto-reclosure for max. 8 reclose cycles
Evolving/sequential trip recognition
Auto-reclosure with ADT, DLC, RDT
Synchro-check with ΔV, Δ?? , Δf measurement
Breaker failure protection with highly secure 2-out-of-4 current check detectors
Breaker failure protection with short reset time and negligible overshoot time
COMMUNICATION INTERFACES
Front interface for connecting a PC
System interface for connecting to a control system via various protocols
– IEC 61850 Ethernet
– IEC 60870-5-103 protocol
– PROFIBUS-FMS/-DP
– DNP 3.0Rear-side service/modem interface
Time synchronization via
– IRIG-B or DCF77 or system interface
SIPROTEC 4 leads the way in integrating protection, control, measurement, and automation functions in one device. The homogenous system platform, the unique DIGSI 4 engineering program, and extensive experience of more than a million successfully operating devices in the field worldwide – thanks to these unique advantages, SIPROTEC 4 enjoys top recognition among users worldwide. SIPROTEC 4 is the industry standard for digital protection technology today in all fields of application.
Get Best QuoteRequest A Callback
Siemens Siprotec 4 Siprotec 7VE6
Get Latest Price
Product Brochure
Product Details:
| Model Name/Number | 7VE6 |
| Relay Type | Voltage Relay |
| Brand | Siemens |
| Voltage | 220 V |
| Current | 12 A |
| Material | MS |
| Usage/Application | Industrial |
Siemens Siprotec 4 Siprotec 7VE6 Multifunction Paralleling Device
The 7VE61 and 7VE63 paralleling devices of the SIPROTEC 4 family are multifunctional compact units used for paralleling power systems and generators.Their technical design ensures highly reliable paralleling due to their 1-channel or 2-channel measurement method and their hardware design. This is supported by numerous monitoring functions. The units automatically detect the operating conditions. The response to these conditions depends on settings. In synchronous network switching mode, the frequency difference is measured with great accuracy. If the frequency difference is almost zero for a long enough time, the networks are already synchronous and a larger making angle is permissible.If the conditions are asynchronous, as is the case when synchronizing generators, the generator speed is automatically matched to the system frequency and the generator voltage to the system voltage. The connection is then made at the synchronous point, allowing for circuit-breaker make-time.
The 7VE61 paralleling device is a 1-channel unit (paralleling function + synchro-check) for use with small to medium-size generators and power systems. It is more reliable than 1-channel paralleling devices. It can also be used for synchro-check, with parallel operation of three synchronization points.For larger generators and power systems withhigh reliability requirements, the 2-channel 7VE63 is recommended. Two independent methods decide on the connection conditions. The unit also has the full control functions of the SIPROTEC 4 family.Voltage and frequency functions including voltage vector jump (??) are optionally available for protection or network decoupling applications.The integrated programmable logic functions (continuous function chart CFC) offer the user a high flexibility so that adjustments can easily be made to the varying requirements on the basis of special system conditions.The flexible communication interfaces are open to modern communication architectures with control systems.
SIPROTEC 7VE6 Paralleling Device BASIC FUNCTIONSHigh reliability with a two-out-of-two design (1 ? channels in 7VE61 and 2 channels in 7VE63)
Paralleling of asynchronous voltage sources
Balancing commands for voltage and speed (frequency)
Paralleling of synchronous voltage sources
Synchro-check function for manual synchronization
Parameter blocks for use on several synchronizing points (7VE61 max. 4 and 7VE63 max. 8)
Consideration of transformer vector group and tap changer
Synchronization record (instantaneous or r.m.s. record)
Commissioning support (CB-time measurement, test synchronization)
Browser operation
Full control functionality of SIPROTEC 4
Analog outputs of operational measured values
Functions for protection or network decoupling tasks
Undervoltage protection(27)
Overvoltage protection (59)
Frequency protection (81)
Rate-of-frequency-change protection (81R)
Jump of voltage vector monitoring
Self-supervision of paralleling function
Operational measured values
8 oscillographic fault record
System interface
– IEC 60870-5-103
– IEC 61850 protocol
– PROFIBUS-DP
– MODBUS RTU and DNP 3.0Service interface for DIGSI 4 (modem)
Front interface for DIGSI 4
Time synchronization via IRIG B/DCF77
Get Best QuoteRequest A Callback
Siemens Siprotec 4 Siprotec 7VU683
Get Latest Price
Product Brochure
Product Details:
| Model Name/Number | 7VU683 |
| Relay Type | Voltage Relay |
| Brand | Siemens |
| Voltage | 220 V |
| Current | 12 A |
| Material | MS |
| Usage/Application | Industrial |
The compact solution Siprotec 7VU683 HSBT Device is designed to fit for the primary diagrams of single busbar (2 CBs) and segmented single busbar (3 CBs). It has incorporated the traditional HSBT philosophy. Additionally, the unique Real Time Fast Transfer mode helps to improve the efficiency.Permanent availability of electricity is essential for the reliable production of a great number of processes in power stations and industrial plants where lots of inductive motors are installed. To achieve this, a busbar is normally equipped with two or more independent incoming power sources to provide the possibility to switch to standby source in case of main source interruption or failure.The power supply interruption with tens of millisecond has a small impact on rotating loads. Thus, the High-Speed Busbar Transfer (HSBT) device helps to control and monitor the progress to ensure the fast but reliable switching-over. It can be initiated manually or automatically.Based on the existing worldwide used SIPROTEC 4 platform, the reliability, stability, and efficiency of HSBT 7VU683 are guaranteed. Thanks to its powerful and flexible performance, multi-functions are integrated into one system, e.g, power supply transfer, relay protection, and supervision.The integrated protective functions are to protect the tie-CB in segmented single busbar diagram against short-circuit and ground fault. The integrated supervision functions are to monitor the voltage phase sequence and voltage secondary circuit, then gives out an alarm in case of failure.The integrated programmable logic (CFC) allows the users to implement their own functions. The flexible communication interfaces are open for modern communication architectures with the control system.
Siprotec 7VU683 HSBT DEVICE FUNCTIONStarting conditions
– NORMAL condition
– FAULT condition
– Inadmissible under-voltage
– Inadmissible under-frequency
– Inadvertent CB openSwitching sequences
– PARALLEL Auto switching sequence
– PARALLEL Half-Auto switching sequence
– SIMULTANEOUS switching sequence
– SEQUENTIAL sequenceTransfer modes
– FAST transfer mode
– REAL-TIME FAST transfer mode
– IN-PHASE transfer mode
– RES-VOLT transfer mode
– LONG-TIME transfer modeSingle busbar and segmented single busbar supported
High speed contact with approx.1ms for closing
Permission of bi-direction switching settable
Low voltage load-shedding settable
CB de-coupling when OPEN failed
NORMAL start locally or remotely
Manual CB closing to block HSBT
ON/OFF set locally or remotely
HSBT test mode supported
Overcurrent protection
Ground overcurrent protection
Overcurrent protection for busbar energization
Ground overcurrent protection for busbar energization
Self-supervision of the device
Oscillographic fault recording
Phase sequence of busbar voltage
Voltage circuit of busbar and line
PC front port for setting with DIGSI 4
System interface
– IEC 60870-5-103, redundant optional
– IEC 61850, Ethernet
– Profi bus-DP or Modbus RTUService interface for DIGSI 4 (modem)
Time synchronization via IRIG B/DCF 77
Get Best QuoteRequest A Callback
Siemens Siprotec 4 Siprotec 7SJ61
Get Latest Price
Product Brochure
Product Details:
| Model Name/Number | 7SJ61 |
| Relay Type | Voltage Relay |
| Brand | Siemens |
| Voltage | 220 V |
| Current | 12 A |
| Usage/Application | Industrial |
Reyrolle 7SR120
The 7SR12 includes directional control of the overcurrent and earth fault functionality and is typically installed where fault current can flow in either direction i.e. on interconnected systems. These relays are typically applied to provide the main protection on feeders and interconnectors and the back-up protection on items of plant such as transformers. On distribution system circuits overcurrent and earth fault protection are often the only protection installed.
Features
The relay functionality allows highly flexible settings for current and time grading making it compatible with all types of overcurrent protection.
The relays are available in single and four pole variants housed in E4 cases with the IEC61850 protocol option housed in an E6 case. Integrated logic is provided to allow the optimal configuration of relay functionality with the relays analogue inputs and binary input/output circuits.
Protection, instrumentation and metering functionality is accessible via data comms channel(s). A front USB port for local PC connection or rear electrical RS485 port for remote connection is provided.
-
Cold load settings
-
Four settings groups
-
Password protection - 2 levels
-
User programmable logic
-
Self-monitoring
-
Circuit breaker trip counter and timer
-
Fault, event and waveform records
Functions
Protection functions
-
Undercurrent (37)
-
Broken conductor (46BC)
-
Negative phase sequence overcurrent (46NPS)
-
Thermal overload (49)
-
Overcurrent (50, 51)
-
Earth fault (50G, 50N, 50SEF, 51G, 51N, 51SEF)
-
Directional control of overcurrent & earth fault (67)
-
High impedance REF (64H)
-
Under/over voltage (27/59)
-
Negative phase sequence voltage (47)
-
Voltage controlled overcurrent (51V)
-
Neutral voltage displacement (59N)
Supervision functions
-
CT supervision (60CTS)
-
Trip & close circuit supervision (74T/CCS)
-
VT supervision (60VTS)
-
Inrush detector (81HBL2)
-
Circuit breaker fail (50BF)
Control functions
-
Auto reclose (79)
Monitoring functions
-
Primary/secondary current phases and earth direction
-
Primary/secondary line and phase voltages
-
Apparent power and power factor
-
Real and reactive power
-
W Hr & VAr Hr forward and reverse
-
Historical demand record
-
Positive phase sequence (PPS) voltage & current
-
Negative phase sequence (NPS) voltage & current
-
Zero phase sequence (ZPS) voltage
Get Best QuoteRequest A Callback