3.4
Single Shot, Auto Reset, Live Line Out, Block Instantaneous after 1
st
Trip
With the switch setting depicted above the relay will go through the following operations.
1. Once the breaker has tripped and the Protection trip contact has closed the Block
Instantaneous contact will pick up and the front panel LED will be lit, the A/R in progress LED
will flash and the A/R contact will close. The relay will wait for the setting of Dead Time 1 to
expire, it will then issue a reclose output pulse, the counter will increment one count and the
A/R in progress LED will become steady.
2. If the Protection Trip Contact and Circuit Breaker has closed the relay will wait for the Reclaim
time to expire then the Block Instantaneous Protection LED and contact will reset and the relay
will reset ready for the next operation.
3. If the Protection Trip Contact is still operated after the Reclose Pulse the relay will drive directly
to Lockout.
4. If after the Reclaim time has expired but the Circuit Breaker has not closed the Block
Instantaneous Protection LED and contact will reset and the relay will go to Lockout.
5. The Lockout indication and contact has to be reset from the front panel of the relay.
6. Refer to flowchart 1B230B-4-100
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Due to RMS continuous product improvement policy this information is subject to change without notice. 1B230_Guide/Iss E/25/08/08
