Siemens siprotec 7sj602 User Manual

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Siemens siprotec 7sj602 Specifications

General

Brand	Siemens
Model	siprotec 7sj602
Category	Relays
Language	English

Summary

3 Technical data

3.2-3.5 Protection Functions Data

Covers data for overcurrent, earth fault, thermal overload, and breaker failure protection.

3.7-3.13 Protection Functions and Ancillary Data

Covers unbalanced load, auto-reclosure, motor monitoring, temperature, and ancillary functions.

4 Method of operation

4.1 Operation of complete unit

Describes the overall operation, hardware structure, and input processing.

4.2 Time overcurrent protection

Details the operation of time overcurrent protection stages.

4.3 Sensitive earth fault protection

Explains the operation of sensitive earth fault protection.

4.4 Thermal overload protection

Describes the operation of thermal overload protection.

4.5 Circuit breaker failure protection

Explains the operation of circuit breaker failure protection.

4.6 Unbalanced load / negative sequence protection

Details the operation of unbalanced load and negative sequence protection.

4.7 Automatic reclosure

4.8 Start-up time monitoring for motors

4.9 Restart inhibit for motors

4.10 Undercurrent monitoring for motors

4.12 Trip circuit supervision

Details the operation of trip circuit supervision.

5 Installation instructions

5.3 Configuration of operation and memory functions

5.3.2 Settings for integrated operation (address block 71)

5.3.3 Serial interface configuration (address block 72)

5.3.4 Settings for fault recording (address block 74)

5.4 Configuration of the protective functions

Overcurrent and Earth Fault Protection Settings

Settings for phase and earth fault overcurrent protection.

Other Protection and Ancillary Function Settings

6 Operating instructions

6.1 Safety precautions

Details essential safety precautions for relay operation.

6.3 Setting the functional parameters

Guides the user through setting functional parameters.

6.3.4 Settings for phase fault current measurement

6.3.5 Settings for earth fault current measurement

6.3.6 Settings for circuit breaker protection (address block 36)

Details settings for circuit breaker protection.

6.3.7 Settings for unbalanced load / negative sequence protection (address block 24)

Explains settings for unbalanced load and negative sequence protection.

6.3.8 Settings for measured value supervision (address block 29)

6.3.9 Settings for auto-reclosure (address block 34)

6.3.10 Settings for undercurrent monitoring (address block 40)

6.3.6 Settings for sensitive earth fault protection (address block 30)

Settings for sensitive earth fault protection.

6.3.6.2 Displacement voltage & 6.3.6.3 Direction discrimination

Configuration for displacement voltage and direction discrimination.

6.3.6.4 Direction check for earth fault protection

Explains direction checking for earth fault protection.

7 Maintenance and fault tracing