Applicable Systems
BESS
Symptoms
The motor overload protection has activated. Equipment operation is halted to prevent motor damage.
Possible Causes
- Motor running beyond rated current
- Mechanical friction or binding increasing load
- Inadequate cooling under current operating conditions
Troubleshooting Steps
- Step 1: Check motor current against nameplate rating
Current reading matches or is below rated value - Step 2: Inspect mechanical components for excessive friction or binding
No binding or excessive friction found - Step 3: Verify cooling system capacity and airflow
Cooling system delivers adequate heat removal
How to Reset
To reset: Resolve the overload root cause, then reset the overload relay and restart the equipment.
Source: ABB Battery Energy Storage System Manual, ABB Power Grids
Category: Battery