Westinghouse CA-5 Installation, Operation & Maintenance Instructions Manual page 11

Percentage differentiall relay for transformer and generator protection
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1
2
14.
1-
2-
3-
Fig.
Types CA-S Relay Without Case (Front View).
Moving Contac:t.
Stationary Contac:t.
Two Electromagnets
4-
(front restraint electromagnet with two windings; rear operating electromagnets with single winding).
Indicating
Contac:tor Switc:h (ICS).
1 1

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