S
Dear Sir,
I have a point to clarify on Mk2 Master protection permissive "4" circuit.
In Mk2 when I checked for the condition and rating (voltage) of relays used in Permissive series circuit (3CR), I found that relays 4-1, 4-2, and 3CR relays are of 28 volt. Where as the input to this circuit is 125 V DC. With these relays fitted, the turbine was running in one station. In my experience, these relays must be of 125 V DC.
Can any one Please confirm and let me know? Now I am not in the field to practically verify. I need help to confirm this issue.
Thanks.....
I have a point to clarify on Mk2 Master protection permissive "4" circuit.
In Mk2 when I checked for the condition and rating (voltage) of relays used in Permissive series circuit (3CR), I found that relays 4-1, 4-2, and 3CR relays are of 28 volt. Where as the input to this circuit is 125 V DC. With these relays fitted, the turbine was running in one station. In my experience, these relays must be of 125 V DC.
Can any one Please confirm and let me know? Now I am not in the field to practically verify. I need help to confirm this issue.
Thanks.....