Information For The 100-% Stator Earth Fault Protection - Siemens Siprotec 7UM62 Manual

Multifunction generator, motor and transformer protection relay

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2.29.2.2 Information for the 100-% Stator Earth Fault Protection

05473 >SEF100 BLOCK

05476 >U20 failure

05481 SEF100 OFF

05482 SEF100 BLOCKED

05483 SEF100 ACTIVE

05486 Failure SEF

05487 SEF100 Alarm

05488 SEF100 PICKUP

05489 SEF100 TRIP

>BLOCK Stator earth fault protection

>Failure 20Hz bias voltage (S/E/F)

S/E/F 100% protection is switched OFF

Stator earth flt. prot. 100% is BLOCKED

Stator earth flt. prot. 100% is ACTIVE

Failure stator earth flt. prot. 100%

Stator earth flt. prot.100% Alarm stage

Stator earth flt. prot.100%: picked up

Stator earth flt. prot.100%: TRIP

C53000-G1176-C149-3

7UM62 Manual