DRY TYPE CONTACTS

[TPEC]

CAN ANYONE SHARE A MASTER TRIP RELAY CONNECTION DIAGRAM SHOWING DRY TYPE CONTACTS??

 

[waross]

Look at any diagram that you have.
Dry contacts and mercury wetted contacts are frequently shown the same in a most schematic diagrams.
If there is any difference on the diagram, it will be the mercury wetted contacts that are shown differently.
Are you confusing the words dry type contacts with dry type or volts free outputs?


Bill
--------------------
"Why not the best?"
Jimmy Carter

 

[TPEC]

NO, I AM CONFUSE WITH THIS STATEMENT:
All protective relays shall be provided with at least two pairs of potential free isolated output contacts.
If all contacts are potential free/ dry type contacts than why it is mentioned separately?

 

[waross]

Are you confusing the words dry type contacts with dry type or volts free outputs?

Sorry but you are confused by the difference between CONTACTS and OUTPUTS.

All protective relays shall be provided with at least two pairs of potential free isolated OUTPUT contacts.

As well as OUTPUTS WITH CONTACTS there are OUTPUTS THAT SOURCE A CURRENT OR POTENTIAL and OUTPUTS THAT SINK A CURRENT.

Bill
--------------------
"Why not the best?"
Jimmy Carter