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value

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  1. S

    Differential Protection testing of a 3-phase transformer

    For Differential protection testing of a three phase Power T/F using secondary injection test set, how do we know the correct value of current to pe applied(value at which relay picks up)? Does OEM provide these values in Instruction manual or Electrical Engineers calculate these values...
  2. B

    Part P whats the value?

    deleted this post because on further investigation I realised I had got wrong end of stick.
  3. G

    Value of a resistor?

    Two resistors, when connected in parallel have an equivalent resistance of 15 ohms. If one of the resistors is 60 ohms what is the value of the other? Question from 2330. Can't apply 1/Rt = 1/R1 + 1/R2 + 1/R3 Was suggested use product over sum method, but not been able to calculate it...
  4. L

    Testing Ring Continuity short Question

    just a quick question I want to clear up, basically when testing a ring circuit, why is it that the ohm values slightly increase per reading, and highest at the centre point? and by how much does the resistance increase when a cable is connected, say with a terminal block. apposed to say a...

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