Can I read Blocking Scheme Operational Settings on EtoBox?
Blocking Scheme Operational Settings by designssd is a document available to read on EtoBox.
What is Blocking Scheme Operational Settings about?
The document discusses a blocking scheme for transmission line protection relays. It recommends setting a delay on instantaneous tripping after zone 2 operation to allow time for a blocking signal to arrive from the relay at the other line end. The delay should be set to the signaling channel reset time plus an additional 12-25 milliseconds depending on the relay type to prevent unwanted tripping of the healthy circuit before zone 2 has time to reset.
- Author
- designssd
- Language
- EN