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TS 870 Transfer Switch
PM062 REV 11 16/04/19
53
Thomson Power Systems
the maximum setting of the ground fault protection shall be 1200 amps, and the maximum time
delay shall be 1 second for ground faults equal to or greater than 3000 amps.
The inspection authority should be contacted to confirm actual test requirements as these may
vary by region or local code requirements.
The interconnected system shall be evaluated to ensure compliance with the appropriate
schematic drawings. The proper location of sensors and power cabling shall be determined.
The grounding points of the system shall be verified to determine that ground paths do not
exist that would bypass the sensors. The use of high-voltage testers and resistance bridges
may be required. A simulated fault current is to be generated by a coil around the sensors.
The reaction of the circuit-interrupting device is to be observed for correct response. The
results of the test are to be recorded on the test form provided.
15. TROUBLESHOOTING
DANGER
Arc Flash and Shock Hazard. Will cause severe injury or death.
Do not open equipment until ALL power sources are disconnected
This equipment must be installed and serviced only by qualified electrical
personnel utilizing safe work practices and appropriate Personal Protective
Equipment (PPE). Failure to do so may cause personal injury or death
Содержание TS 870
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