Pre-Energization Checklist; Peripheral Circuitry - GE DR60 Technical Manual

3.5

Pre-energization Checklist

3.6

Peripheral Circuitry

20
The PCT connection must have low-inductance and be as short
as possible. For best EMC performance, ground the unit using
a 10 mm (0.4 inch) wide braided grounding strap.
All connections to the equipment must have a defined
potential. Connections that are pre-wired, but not used,
should be earthed, or connected to a common grouped
potential.
Pay extra attention to diagrams before wiring the equipment.
Always be sure that the connections are correct before
energizing the circuits.
Check voltage rating/polarity (rating label/equipment
documentation).
Check CT circuit rating (rating label) and integrity of
connections.
Check protective fuse or miniature circuit breaker (MCB)
rating.
Check integrity of the PCT connection.
Check voltage and current rating of external wiring,
ensuring it is appropriate for the application.
Do not open the secondary circuit of a live CT
since the high voltage produced may be lethal to
personnel and could damage insulation. Short
the secondary of the line CT before opening any
connections to it.
Reason devices DO NOT feature any automatic CT shorting feature. Therefore,
external shorting of the CTs is mandatory. Check the equipment documentation
and wiring diagrams carefully.
DR60-TM-EN-2A