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  • Users: REC67
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  1. REC67

    Frequency in Transformers

    What is the effect of applying 50 HZ to a transformer designed for 60 ?
  2. REC67

    CONTROL TRANSFORMERS VOLTAGE DROP PROBLEM

    We are using 440/24 V 50 VA in a 30 KW (2 steps) humidifiers. When starting the second step the secondary voltage drops to about 13.5 Volts and the contactor couldnt close contacts and work properly. Why could this be happening if we have measured the 440 V in the primary and the 24 Volts in...
  3. REC67

    Wiring magnetic contactors

    What is the code/norm that allows using a 2 pole contactor in a 3 phase application? (leaving one line "hot", not interrupted) Thanks

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