GE SERIES B 480 user manual Troubleshooting, Problem, Line voltage is not present at the filter

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GE Capacitor & Power Quality Products

TROUBLESHOOTING

WARNING WARNING

When properly installed, this equipment has been designed to provide maximum safety for operating personnel. However, hazardous voltages exist within the confines of the enclosure. Servicing should therefore be performed by qualified personnel only and in accordance with OSHA Regulations.

To aid in troubleshooting, a block diagram is shown in Figure 38, and a list of potential problems and solutions are listed below.

HIGH VOLTAGE IS USED IN THE OPERATION OF THIS FILTER. USE EXTREME CAUTION TO AVOID CONTACT WITH HIGH VOLTAGE WHEN OPERATING, INSTALLING OR REPAIRING THIS FILTER. INJURY, DEATH AND/OR PROPERTY DAMAGE MAY RESULT IF SAFETY PRECAUTIONS ARE NOT OBSERVED.

After removing power, allow at least five minutes to elapse and verify that the capacitors have discharged to a safe level before contacting internal components. Connect a DC voltmeter across the capacitor terminals 1, 2 and 3 on terminal block 1TB. Start with the meter on the highest scale and progressively switch to a lower scale as the indicated voltage falls below the maximum value of the scale used.

PROBLEM:	Line voltage is not present at the filter
	output terminals.
Possible cause:	Power to the filter is turned off.
Solution:	Turn power on.
Possible cause:	One or more external line fuses are blown.
Solution:	Verify the continuity of line fuses in all
	phases. Replace as necessary.

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GEH-7252 48 May 2003