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Recent content by lenne

  1. lenne

    NEC standrad for voltage unbalance for motors

    NEMA definition: voltage unbalance as 100 times the maximum deviation of line voltage from the average voltage on a three-phase system, devided by the average voltage. NEMA recommends against the use of motors where the unbalance is greater than five percent. A unbalance of one percent may...
  2. lenne

    High-Voltage underground cable

    I am looking for information on high voltage underground cable installation and design for cost-estimate to replace existing overhead lines.

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