The SIPROTEC 7SC80 feeder protection 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.

1. 7SC80 Feeder
Automation Controller
SIPROTEC Compact

2.  The SIPROTEC 7SC80 feeder protection 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.
Description

3. Highlights:
o Support of feeder automation applications, e.g. fault isolation and service restauration
o Designed for harsh environment
o Extended temperature range –50 °C up to 85 °C
o Open for all different communication technologies, e.g. radio, which are used for feeder
automation
o Integrated GPS module is available for time synchronisation
o Full remote access supported for firmware and parameter updates and upgrades
o A web based HMI provides complete remote control of the device
o 9 programmable function keys
o 6-line display
o Integrated switch for low-cost and redundant optical rings. Devices can be connected
directly with each other at electrical modules
o Parallel running communication protocols
o Redundancy protocols RSTP, PRP and HSR for highest availability
o Current Jump detector
o Extended CFC capabilities
o 24 km Single mode interface
Description

4.  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
Hardware

5. 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
Communication interfaces

6.  The feeder protection SIPROTEC 7SC80 is a numerical protection device that can perform
control and monitoring functions and therefore provides the user with a costeffective
platform for power system management, that ensures reliable supply of electrical power
to the customers. Device operation was designed according to ergonomic aspects. Top
priority was given to good display readability and large function keys. The 32 LEDs allow
displaying numerous states and alarms.
Control
The integrated control function permits control of disconnect devices, grounding switches or
circuit-breakers through the integrated operator panel, binary inputs, DIGSI 4 or the systems
control (e.g. SICAM).
Programmable logic
The integrated logic characteristics (CFC) allow the user to add own functions for automation
of switchgear (e.g. interlocking), switching sequence or of the distribution system. The user
can also generate user-defined messages.
Operational measured values
Extensive measured values, metered values and limit values provide improved system
management as well as commissioning
Applications

7. Applications

8. Housing with many advantages
The SIPROTEC 7SC80 has a complete other form factor than all other SIPROTEC Compact
devices. All interfaces are at the left and right hand side of the relay. A small print onto the
enclosure next to the clamps describes each port in detail. All clamps are pluggable and
therefore a pre-wiring and easy replacement in case of maintenance is possible.
Operation panel/HMI
The relay features both a clip-on and a web-based operation panel/HMI (web monitor) with
32 LEDs and 9 programmable keys that can be used to configure shortcuts for menu
operations or other applications
Construction and hardware

9. Commissioning
Commissioning could not be easier and is supported by DIGSI 4. The status of the binary
inputs can be read individually and the state of the binary outputs can be set individually.
The operation of switching elements (circuit-breakers, disconnect devices) can be checked
using the switching functions of the relay.
The analog measured values are represented as wide-ranging operational measured values.
To prevent transmission of information to the control center during maintenance, the
communications can be disabled to prevent unnecessary data from being transmitted.
During commissioning, all indications with test tag for test purposes can be connected to a
control and protection system.

10. Ring system application

11. Connection Diagram

12. Mob No:
Mr. Piyush Rathi- +91-9819614841
Website:
www.reliservsolution.com
Email-ID:
piyush@reliserv.in
sales1@reliserv.in
Address:
Office No: 9, Space Heights,
Plot No. 53/54 , Sector 34,
Kamothe,Navi Mumbai- 410209
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