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I have been asked to do a preventative maintenance inspection on some Municipal water pump stations containing MCCs, gensets, pumps of course, and associated equipment. I am looking to find some sort of equipment checklist for submittal to the owners containing the necessary measured and...

There are no taps on the BC lower mainland utility Xformers. The muncipality's electrical crew have tried many tests prior to bringing us in to quote on the auto Xformer solution. It costs them large to bring in the equipment to re and re this pump motor. The utility will not change the 75 KVA...

Thanks busbar but it would probaly take 2 years for the regulatory body to decide if they had juristiction, then.........???? The Utility has + or - 10% they claim. I have not read their obligations to have the monopoly they do, but they set the rules. That the Utility has 3P, 630V at this...

Thank-you jraef. Now to really show my knowledge. With the utility supply Xformers approx. 100'away from the MCC, the motor within 30' of the MCC, and very little other loads on the service: I would set the motor supply voltage @ 575V????????

I have been requested to install a multiple tap autotransformer in the 3 phase line which is feeding a 51KW, 575V, 72.8 FLA water resevoir pump to reduce the 630V supply line to 600V or less. This 630V is believed to be what has been causing this pump motor to burn out on at least 3 occasions...