ABB SPAJ 111 C User Manual page 17

Sensitive earth-fault relay.
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The secondary current of the current trans-
former is to be selected on the basis of the rated
current, 1 A or 5 A, of the relay energizing input
Fig. 7. Secondary injection test circuit for the earth-fault relay SPAJ 111 C.
When the test circuit has been completed and
the selector switches have been properly set, the
auxiliary voltage is connected to the relay. The
to be tested. The energizing inputs are specified
in chapter "Technical data" under the heading
"Energizing inputs".
1A
5A
operation of the test circuit can be verified by
using a multimeter.
17

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