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TROUBLESHOOTING - continued
PROBLEM:
Possible cause:
Solution
Possible cause:
Solution
Possible cause:
Solution:
PROBLEM:
Possible cause:
Solution:
Possible cause:
Solution:
GEH-7252
Harmonic current distortion exceeds 5% on one or more
phases at full load.
Source impedance is less than 1.5%.
Add a minimum 1.5% impedance line reactor to the filter input
Input source voltage harmonic distortion.
Identify equipment causing harmonic voltage distortion and add
filters as required or accept elevated THVD
Line voltage unbalance exceeds 1%.
Balance input line voltage to 1% or less.
Filter output voltage is not within specification
Filter input voltage is not within specification.
Check the AC input line voltage and verify that it is within tolerance.
Refer to the filter service conditions and performance specifications
in Chapter 3 for tolerances.
Source impedance is out of tolerance.
Verify that the source impedance is within tolerance. Refer to the
filter service conditions and performance specifications in Chapter 4
for tolerances.
50
GE Capacitor & Power Quality Products
May 2003
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