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Siprotec Compact Relay
Siemens 7SK80 SIPROTEC Compact
Product Brochure
Brand | Siemens |
Output Type | Digital |
Usage/Application | Industrial |
Number of Inputs | 9 Digits |
Country of Origin | Made in India |
Model Number | 7SK80 |
Siemens 7SK80 SIPROTEC Compact is a multi-functional motor protection relay is designed for protection of asynchronous motors of all sizes. The relays have all the required functions to be applied as a backup relay to a transformer differential relay.
The SIPROTEC 7SK80 features “flexible protection functions”. Up to 20 additional protection functions can be created by the user.
Therefore protection of change for frequency or reverse power protection can be realized, for example.
The relay provides circuit-breaker control, further switching devices and automation functions. The integrated programmable logic (CFC) allows the user to add own functions, e.g. for the automation of switchgear (interlocking). The user is also allowed to generate user-defined messages.
Hardware
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4 current transformers
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0 / 3 voltage transformers
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3 / 7 binary inputs (thresholds configurable using software)
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5 / 8 binary outputs (2 changeover)
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0 / 5 RTD inputs
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1 life contact
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Pluggable current and voltage terminals.
Functions
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Definite and inverse time-overcurrent protection (phase/ground) (50, 50N, 51, 51N)
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Directional time-overcurrent protection, ground (67N)
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Directional overcurrent protection, ground (definite/inverse)(67Ns, 50Ns))
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Displacement voltage, zero-sequence voltage (59N)
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Trip-circuit supervision (74TC)
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Undercurrent monitoring (37)
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Temperature monitoring (38)
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Thermal overload protection (49)
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Load jam protection (51M)
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Locked rotor protection (14)
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Intermittent ground fault protection
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Directional intermittent ground fault protection (67Ns)
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Overcurrent protection, voltage controlled (51V)
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Restart inhibit (66/86)
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Undervoltage/overvoltage protection (27/59)
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Forward-power, reverse-power protection (32)
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Power factor (55)
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Overfrequency/underfrequency protection(81O/U)
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Circuit-breaker failure protection (50BF)
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Phase-balance current protection (negative-sequence protection) (46)
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Unbalance-voltage protection and/or phase-sequence monitoring (47)
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Start-time supervision (48)
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Lockout (86)
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Rate-of-frequency-change protection (81R)
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Rate-of-voltage-change protection (27R/59R)
Applications
Motor protection
The SIPROTEC 7SK80 device is specifically designed to protect induction-type asynchronous motors..
Transformer protection
The SIPROTEC 7SK80 device provides all the functions for backup protection for transformer differential protection. The inrush suppression effectively prevents unwanted trips that can be caused by inrush currents.
Siemens Siprotec 7sj80
Product Brochure
Model Name/Number | 7SJ80 |
Relay Type | Voltage Relay |
Brand | Siemens |
Voltage | 220 V |
Current | 12 A |
Material | MS |
Usage/Application | Industrial |
The Siemens 7SJ80 Overcurrent Protection relay is a multi-functional motor protection relay. Siemens SIPROTEC 7SJ80 is designed for the protection of asynchronous motors of all sizes. The relays have all the required functions to be applied as a backup relay to a transformer differential relay. Siemens SIPROTEC Compact 7SJ80 features flexible protection functions. Up to 20 additional protection functions can be created by the user. Therefore protection of change for frequency or reverse power protection can be realized, for example, Siemens Siprotec 7SJ80 relay provides circuit-breaker control, further switching devices, and automation functions. The integrated programmable logic (CFC) allows the user to add their own functions, e.g. for the automation of switchgear (interlocking). The user is also allowed to generate user-defined messages.
Highlights-Conformal coating available (NEW)-Pluggable current and voltage terminals-Binary input thresholds settable using DIGSI (3 stages)-Secondary current transformer values (1 A / 5 A) settable using DIGSI-9 programmable function keys-6-line display-Buffer battery exchangeable from the front-USB front port-2 additional communication ports-Integrated switch for low-cost and redundant optical Ethernet rings-Ethernet redundancy protocols RSTP, PRP and HSR for highest availability-Relay-to-relay communication through Ethernet with IEC 61850 GOOSE-Millisecond-accurate time synchronization through Ethernet with SNTP-Number of binary inputs and binary outputs by a connection from up to two SICAM I / O-Units extendable.
SIPROTEC 7SJ80 series relays are the best retrofitting option to old 7SJ600 series relays as they have the same cut-out requirements.
Also using these relays as a replacement you can upgrade to a new generation substation as these relays can provide the latest communication protocol IEC 61850.
SIEMENS 7SJ80 RELAY PROTECTION FUNCTIONSovercurrent protection (50, 50N, 51, 51N)
Directional time-overcurrent protection (67, 67N)
Sensitive dir. ground-fault detection (67Ns)
High-impedance restricted ground fault (87N)
Undercurrent monitoring (37)
Overload protection (49)
Under-/overvoltage protection (27/59)
frequency protection (81O/U)
Breaker failure protection (50BF)
negative-sequence protection (46)
Synch-check (25)
Auto-reclosure (79)
Fault locator (21FL)
Lockout (86)
Commands for the ctrl. of CB, disconnect switches (isolators/isolating switches)
Control through a keyboard, binary inputs, DIGSI 4, or SCADA system
User-defined PLC logic with CFC (e.g. interlocking)
Operational measured values V, I, f
Energy metering values Wp, Wq
Circuit-breaker wear monitoring
Minimum and maximum values
Trip circuit supervision (74TC)
Fuse failure monitor
8 oscillographic fault records
– IEC 61850 Edition 1 and 2
– IEC 60870-5-103 and IEC 60870-5-104
Siemens 7SC80 Siprotec Feeder Protection & Recloser Controller Relay
Product Brochure
Model Name/Number | 7SC80 |
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 |
We offer you considerably more than just a simple time over current protection. The SIPROTEC 7SC80 Feeder Protection relay can be used for protection and automation of medium voltage distribution feeders with grounded or low resistance grounded, isolated, or compensated neutral point. The 7SC80 features flexible protection functions. 20 additional protection functions can be created by the user. For example, a rate of change of frequency function or a reverse power function can be created. The relay provides circuit-breaker control. Additional primary switching devices (grounding switches, transfer switches, and isolating switches) can also be controlled from the relay. Automation or PLC logic functionality is also implemented in the device. The integrated programmable logic (CFC) allows the user to add own functions, e.g. for the automation of switchgear (including interlocking, transfer and load shedding schemes). The user is also allowed to generate user-defined messages.
The upgrade of device and communication firmware is also possible via Ethernet. Highlights-Support of feeder automation applications, e.g. fault isolation and service restoration-Designed for harsh environment-Extended temperature range 50 C up to 85 C-Open for all different communication technologies, e.g. radio, which are used for feeder automation-Integrated GPS module is available for time synchronization-Full remote access supported for firmware and parameter updates and upgrades-A web based HMI provides complete remote control of the device-9 programmable function keys-6-line display-Integrated switch for low-cost and redundant optical rings.
Devices can be connected directly with each other at electrical modules-Parallel running communication protocols-Redundancy protocols RSTP, PRP, and HSR for highest availability-Current Jump detector-Extended CFC capabilities-RTU version without protection features-Secondary current transformers values (1 A / 5 A9 settable using DIGSI-Buffer battery exchangeable from the side-USB front port-Relay-to-relay communication through Ethernet with IEC 61850 GOOSE-Stainless steel housing-Millisecond-accurate time synchronization through Ethernet with SNTP-Inputs for Low power CTs and VTs according to IEC 61869-6 (formerly IEC 60044-7 and IEC 60044-8)
CONTROL FUNCTIONS/PROGRAMMABLE LOGIC
Commands for the ctrl. of CB, disconnect switches (isolators/isolating switches)
Control through keyboard, binary inputs, DIGSI 4 or SCADA system
User-defined PLC logic with CFC (e.g. interlocking)
MONITORING FUNCTIONS
Operational measured values V, I, f
Energy metering values Wp,Wq
Minimum and maximum values
Circuit-breaker wear monitoring
Fuse failure monitor
8 oscillographic fault records
Trip circuit supervision
COMMUNICATION INTERFACES
Hardware
Ethernet electrical and optical (miltimode or single-mode)
IEC 61850 Edition 1 and 2
DNP3 TCP
PROFINET
IEC 60870-5-104
Ethernet redundancy protocols RSTP, PRP and HSR
USB front interface for DIGSI 4
HARDWARE
4 current transformers
1/4 voltage transformers
12 binary inputs
8 binary outputs
1 life contact
Pluggable current and voltage terminal blocks
Connection option for low-power current and voltage transformers
Siemens Siprotec Compact 7SD80 Line Differential Protection
Product Brochure
Model Name/Number | 7SD80 |
Brand | Siemens |
Voltage | 220 V |
Usage/Application | Industrial |
Coil Type | Latching |
Country of Origin | Made in India |
The 7SD80 Line differential protection relay has been conceived for selective line protection of power cables and overhead lines up to 24km for all kind of star point configurations. The implemented phase comparison algorithm is a fast and stable method for line protection in industry and distribution grids. The protection interface communication of 7SD80 Line differential protection relay is carried out directly without external equipment over copper wires, optical fibers or both in redundancy.The wide scope of non-directional and directional functions can be applied miscellaneously as emergency functions as well as backup functions. For instance, the 7SD80 enables simplified and cost saving concepts for meshed grids and busbar protection by means of reverse interlocking. Fast and selective tripping is guaranteed even if the communication fails between the relays.
The scope of functions includes protection functions as well as functions for control and monitoring.The interoperable connectivity to substation control systems is given by standard protocols like IEC61850. The general concept of redundancy for protection and its communication gets completed by Ethernet redundancy protocols (PRP, HSR, RSTP) and thus increases the total system availability. Integrated functions for commissioning help and easy settings lead to short commissioning times.
Detail Protection interface communication Data exchange of the differential protection function takes place by means of digital communication via integrated two-wire interface and / or an integrated fiber-optic interface. By parallel use of both options, communication redundancy can be realised, therefore.Communication via the protection interface can further be used to send an inter-tripping command to the circuit-breaker at the opposite end, and to exchange at the same time up to 16 freely assignable binary signals between the 7SD80 relays.
7SD80 Line differential protection Relay Benefits:Conformal coating available (NEW)
-Pluggable current and voltage terminals
-Binary input thresholds settable using DIGSI (3 stages)
-Secondary current transformer values (1 A / 5 A) settable using DIGSI
-9 programmable function keys
-6-line display
-Buffer battery exchangeable from the front
-USB front port
-2 additional communication ports
-Integrated switch for low
-cost and redundant optical Ethernet rings
-Ethernet redundancy protocols RSTP, PRP and HSR for highest availability
-Relay-to-relay communication through Ethernet with IEC 61850 GOOSE
-Millisecond-accurate time synchronization through Ethernet with SNTP
-Short commissioning times by an easy parameterization and integrated commissioning help for protection and communication
-Integrated interfaces for exchanging differential protection data (fiber-optic up to 24 km/ 15 miles and/or two-wire copper cables up to 20 km/ 12 miles)
-Integrated monitoring function of the protection interface, both in the commissioning phase and in running operation
-Addressability of the protection devices for the differential protection communication in order to detect an accidental interchange of the communication cables in case of parallel cables
-Integrated non-directional and directional time
-overcurrent protection
-Transmission of a circuit-breaker inter tripping signal and 16 further binary signals to the opposite end
-Result: The 7DS80 is ideal for distances to 24 km/15 miles, for ring systems and as an application for differential protection.
Hardware-4 current transformers-0/3 voltage transformers-3/5/7 binary inputs (thresholds configurable using software)-5/8 binary outputs (2 changeovers)-1 live-status contact-Pluggable current and voltage terminals-Conformal coating available (NEW)