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JLStanton
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Is there an easy way to reduce the incident energy on a Service Entrance Swbd.
2020-12-09 02:31 PMOne of the easiest ways to reduce Incident energy of down stream Distribution on a Service Entrance Swbd, is to separate the Main Disconnect from the rest of the lineup. If the Main has bottom incoming and top outgoing lugs, you can provide a Top Hat…View more
Posted by: JLStanton in NEMA Engineers & Designers Forum
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How do I size a Xfmr for a motor load
2020-12-09 01:51 PM1. Sizing Xfmr for Motor Loads 2. Formula –Motor LRC / Xfmr Secondary Current * Xfmr Impedance (As a Whole Number) = Voltage Drop 3. Assume a 40 HP Motor at 208V, and you have a 480V System. FLA of Motor is 120A, and assuming LRC is 6 times FLA, you …View more
Posted by: JLStanton in NEMA Engineers & Designers Forum
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