Title
CCR Fault – Over Voltage
URL Name
CCR-Fault-Over-Voltage
Summary
Describes the Over Voltage fault in the Type L-828 and Type L-829 Ferroresonant Constant Current Regulator and the corrective actions.

Content

Fault Description


The CCR has detected that the output voltage is higher than the fault threshold. The default fault is at 15% over nominal output voltage. The nominal output voltage for the highest step count is listed on the CCR nameplate. This fault will generally occur if the airfield circuit has been damaged and is causing electrical arcing. When the CCR determines a fault has occurred, it will engage the red indicator light on the FAULT button and the fault will be shown on line 1 of the CCR display. The CCR will not continue to operate in the event of a fault. All fault conditions must be addressed to resume normal operation of the CCR.

Attempt to Correct


Always maintain safe working conditions by using appropriate personal protective equipment (PPE) where necessary.
Follow lock out / tag out procedures and verify all sources of electricity are open before working on the CCR.
Put the CCR in Local mode, and then disconnect CCR supply power.
Within the CCR, install a wire jumper, or pull an S-1 Cutout handle, like described in Terminating CCR Connections.
Re-energize the CCR, and turn it on to the first brightness step.
If the CCR continues to present the fault, contact Airport Lighting Company.
If the CCR does not determine the fault with the output shorted, consult an electrician to diagnose the airfield circuit.

Airport Lighting Company | Type L-828, Type L-829 Ferroresonant Constant Current Regulator

Constant Current Regulator