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  • Users: babambu
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  1. babambu

    CT Selection for Restricted Earth Fault protection

    The 6.6kV Star side of an 7.5MVA transformer is earthed through current limiting resistor to 300mA. The CT on the earthed side are 1250/1A. The phase CT on the Transformer are 800/1A. Will the mismatch on the CT ( 1250 and 800) be a problem? If not a problem how are these CT connected including...
  2. babambu

    Books and Software

    Soon I will be openning an electrical consulting company. Can someone advise on the best books and softwares on MV and LV reticulation.
  3. babambu

    DC Power Supply Dynamics

    Can you help with this unit. A DC Power Supply should be ON during normal running of the process plant. On Emergency Generator power it should switch-OFF and is PLC controlled. It should remain OFF even after the mains power return. This DC power supply should only be mannualy turned ON after...
  4. babambu

    CT

    Does the voltage rating of the Current Transformer matter if you are measuring on the neutral side?

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