3.7
Double Shot, Auto Reset, Live Line Out, Block Instantaneous after 2
nd
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 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 both the Protection Trip Contact and the Circuit Breaker have reset the relay will wait for the
Reclaim time to expire and reset the relay ready for the next operation.
3. If the Protection Trip Contact and Circuit Breaker have not reset the Block Instantaneous
Protection contact and LED will operate and after Dead time 2 has expired the relay will issue
another reclose pulse, the counter will increment one count. If the Circuit Breaker and
Protection Trip Contact still have not reset then the Block Instantaneous Protection contact
and LED are reset and the relay drives to Lockout.
4. If the Protection Trip Contact and Circuit Breaker have both reset the relay waits for the
Reclaim time to expire and then resets ready for the next operation.
5. The Lockout indication and contact has to be reset from the front panel of the relay.
6. Refer to flowchart 1B230B-7-100
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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
