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MEGGER TESTING
INSULATION OR LEAKAGE TEST
In this test the resistance between each
conductor and earth is measured for
determining the value of leakage current.
This calculated leakage current should not
exceed 1/5000 part of the full load
current and this can be calculated from
resistance measured by megger as:
PROCEDURE FOR INSULATION TEST
Types of wiring
Series and Parallel Connections
AC and DC Conductors
Inductor, Capacitor and
transformer
Distribution methods – Single
phase and three phase
ISI Rules – Megger testing and
Earthing
megger testing.pptx

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megger testing.pptx

  • 1.
  • 3. INSULATION OR LEAKAGE TEST In this test the resistance between each conductor and earth is measured for determining the value of leakage current. This calculated leakage current should not exceed 1/5000 part of the full load current and this can be calculated from resistance measured by megger as:
  • 5.
  • 6.
  • 7.
  • 8.
  • 9. Types of wiring Series and Parallel Connections AC and DC Conductors Inductor, Capacitor and transformer Distribution methods – Single phase and three phase ISI Rules – Megger testing and Earthing