Ferroresonant L-828/L-829 CCR Troubleshooting
2009 ADB Airfield Solutions, Incorporated
96A0288T 6-1
All rights reserved Issued 9/04
Section 6
Troubleshooting
WARNING: Allow only qualified personnel to perform the
following tasks. Observe and follow the safety instructions in
this document and all other related documentation.
WARNING: De-energize regulator by turning rotary switch S1
to OFF, and remove input power to regulator by turning off
disconnect switch or main circuit breaker. Discharge
capacitors and ground output terminals bushings by using a
grounding rod prior to touching any parts.
WARNING: If the regulator de-energizes, the output circuit
could be interrupted by an overcurrent, open-circuit, or under-
voltage condition. Before inspecting the output circuit. place
rotary selector switch S1 in the OFF position
and turn off disconnect switch or main circuit breaker. Without
this precaution, a dip in the power line may reset the regulator
and turn it on, resulting in an output voltage of thousands of
volts which can cause serious injury or death.
WARNING: Contents are static-sensitive. Must be grounded
when handling PCB.
CAUTION: Short the output terminals before switching the
regulator on. The wire should be AWG 8 or larger.
This section provides a preliminary troubleshooting check list and
troubleshooting procedures for the ferroresonant L-828/L-829 CCR (4-70
kW/6.6 A or 20 A):
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