Applicable Systems
BESS
Symptoms
Voltage has exceeded the maximum safe threshold. The system has shut down to prevent overvoltage damage.
Possible Causes
- Charging voltage regulation failed
- Battery management system fault
- Load reduction causing voltage spike
Troubleshooting Steps
- Step 1: Measure actual voltage and compare with threshold
Voltage confirmed above limit - Step 2: Check charger voltage regulation circuit
Regulation circuit fault identified - Step 3: Inspect battery management system for proper operation
BMS operating correctly
How to Reset
To reset: Clear the overvoltage alarm after confirming voltage regulation is restored.
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Source: ABB Battery Energy Storage System Manual, ABB Power Grids
Category: Battery
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