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23-10-2017, 03:10 PM #1
shorted insulation centralina compressor
I have a centralina made up of theree compressors.One of them found shorted insulation to earth. each compressor has soft start , current meter inbuilt , low and high pressure cut outs,besides the electrical MCB ,& Rcd . Client need to know the cause ! I still have to dismantle and inspect. It's my first time on this plant. Am I right to write possible causes :
Low voltage / voltage dips of mains supply
Liquid slug due to wet evaporators,
compressor wear and tear of 4 years
High head pressure due to irregular condenser fan motors On/Off through auto reset pressure switches
Any feed back is welcome