SE CO ND AR Y T EST ING O F PR OT E CT IO N R E LAYS ESSA I L EC TEST B LO C KS
1VLG5 00 0 17 C 65
ESSAILEC® Trip or Polarity range test block
The test block allows the testing without circuit breaker tripping.
Testing procedure
Step 1/5
Remove the lid from ESSAILEC
®
Trip / Polarity test socket and insert the test plug. The test
plug disconnects tripping signal from a protection relay.
Figure 101: ESSAILEC
®
Trip test block – Testing
Step 2/5
Remove the lids from ESSAILEC
®
RJ45 test sockets for all three phases and insert the test
plugs
Figure 102: ESSAILEC
®
RJ45 test block – Testing
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