1. Connect current and voltage circuits
2. Open current transformers short circuit
3. Unlock Test Plug
4. Connect trigger circuits.
Stabilization system in the extraction
In the test plug extraction, before trip circuit
connection, it is necessary to stop and press the
two buttons to unlock the latching mechanism.
This operation will allow voltage and current values
to stabilize after transients during the connection,
and will avoid unwanted tripping during the trigger
circuit connection.
Guided and poka-yoke
The test plug includes a guides and a poka-yoke
system(Prevents improper connections), to make easier
the insertion into the test block in the proper position and
ensuring the opening of all contacts, of the same type
simultaneously.
During test plug insertion and extraction there are not bounces that could
damage current transformers.
To Next Page
Loading...