HV Testing for On Load Brush Change in Engineering
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Questions and Answers

What is the primary purpose of the HV DC test set used in this procedure?

  • To measure the insulation resistance of the sample under test
  • To measure the voltage applied to the sample under test
  • To measure the dielectric strength of the PPE
  • To measure the current flowing through the sample under test (correct)
  • What is the main precaution to be taken when conducting this high voltage proving test?

  • Ensure the area is cordoned off with security tape
  • Ensure overload protection of the test set (correct)
  • Ensure the voltage is raised and lowered gradually
  • Ensure the sample under test is placed on a clean surface
  • What is the purpose of measuring the insulation resistance (IR) of the sample before and after the high voltage test?

  • To ensure the sample meets the required insulation resistance
  • To ensure the test set is functioning correctly
  • To ensure the sample is not damaged during the test (correct)
  • To ensure the earthing system is working properly
  • What is the purpose of the Fluke meter mentioned in the procedure?

    <p>To measure the current flowing through the sample under test</p> Signup and view all the answers

    What is the main purpose of the high voltage proving test on the PPE used for on-load brush change?

    <p>To verify the dielectric strength of the PPE</p> Signup and view all the answers

    What is the test frequency for the PPE used for on-load brush change?

    <p>Every time it is used</p> Signup and view all the answers

    What is the primary danger associated with working on brush gear?

    <p>Electric shock or burns</p> Signup and view all the answers

    Which of the following voltages is considered High Voltage (HV)?

    <p>A voltage exceeding 600 volts</p> Signup and view all the answers

    What is the term used to describe equipment that is at zero electrical potential with respect to Earth?

    <p>Dead</p> Signup and view all the answers

    Which of the following is required for an Authorized Person to perform duties under the Permit to Work (PTW) System?

    <p>Authorization from the Authorization panel</p> Signup and view all the answers

    What procedure should be followed for activities related to brush gear and high voltage rotating machines?

    <p>HPSL/TNPTL/HSE/S/PS3/007/01/D/08 Brush Gear and High Voltage Rotating Machines</p> Signup and view all the answers

    Which of the following voltages is considered Low Voltage (LV)?

    <p>A voltage not exceeding 250 volts</p> Signup and view all the answers

    What does the abbreviation 'CPR' likely refer to in the context of on-load brush change training?

    <p>Cardiopulmonary Resuscitation</p> Signup and view all the answers

    Based on the information provided, what is the purpose of the 'LIST OF INSULATED TOOLS FOR BRUSH CHANGE ON LOAD'?

    <p>To provide a reference for the minimum required insulated tools for safe on-load brush change operations</p> Signup and view all the answers

    What is the likely purpose of recording the 'Applied Voltage (KV)' and 'Current (mA)' during the testing procedure?

    <p>To verify the dielectric strength of the insulation under high-voltage conditions</p> Signup and view all the answers

    According to the information provided, when is the testing procedure required to be performed?

    <p>Every time after the replacement of brushes on load</p> Signup and view all the answers

    What is the purpose of the 'LIST OF AUTHORISED STAFF FOR BRUSH CHANGE ON LOAD'?

    <p>To ensure that only qualified personnel perform on-load brush change operations</p> Signup and view all the answers

    What is the significance of the 'Remarks' column in the testing procedure table?

    <p>To document any unusual observations or deviations from the standard procedure</p> Signup and view all the answers

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