ABB-Substation-Condition-Monitoring-Schedule(5)

Battery and battery chargerCheck for any physical damage, loose connections. Check for low level or low specific gravity of the electrolyte. Record the electrolyte temperature. Verify vent cap and flame arresters are in place. Check electrolyte appearance. Check working of exhaust fan.Check for cleaning and corrosion.Observe temperature (by touch). If temperature is found high, check and attend the reason for the same. Check the charging current and voltage. Observe the ground detector lamps for an indication of an undesirable ground on the dc system. Compressor

Check for leakage of air. Check air pressure and Oil level. Substation area- General

Verify the existence of appropriate danger and informational warning signs. Verify whether they are missing or needs repainting.

Check for rusting of fasteners

Check for any hotspots at conductor/ equipment/ stringing termination.

Check for indoor and outdoor lighting systems for burned-out lamps or other component failures

Verify that there is adequate supply of sparesInspect the fire protection system