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  1. corona

    Multiple A/C Units_Share Service

    Do you have other loads, indoor/outdoor lighting, receptacles, motors, etc., etc. How are you metering? Individual spaces, one meter? Corona
  2. corona

    Phase Rotation-CW/CCW

    From:Corona There is more than one concept related to phase rotation, depending on two different main concepts. 1. Mathematical Concepts 2. Physical Concepts Your are right when you view ABC as simply the order in which the phases rotate. This is a physical concept. Although ABC rotation an...
  3. corona

    Help on SC Calculation: Second xfmr downstream with motor loads

    Just a thought. Depending on the number of motors involved , the characteristics of the MCC, and the distances of the motors from the MCC, have you given consideration to exchanging the 208v, 3p motors for 480 3p, motors.
  4. corona

    Amperage capcity of copper bus bars

    Bus bars:<br>General applications:<br><br>Switchboards, panelboards, Bus duct....<br><br>In these type of appications they are rated for amps and voltages.<br><br>For estimating purposes 1000 amps/sq-in is ok.<br><br>Source frequency drives the skin effects, the higher the frequency the higher...

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