Applicable Systems
EMCP 4.2
Symptoms
The generator set reports a short circuit. A short circuit has been detected on the output.
Possible Causes
- Output wiring short to ground or between phases
- Load side fault causing short circuit current
- Alternator winding short
Troubleshooting Steps
- Step 1: Perform insulation testing on the output wiring
No shorts detected - Step 2: Isolate the load side fault
Fault is located and isolated - Step 3: Test the alternator windings
Windings are intact
How to Reset
To reset: Repair the short circuit, then reset the protection.
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Source: Caterpillar Generator Set Manual, Caterpillar Inc.
Category: Generator
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