With reference to insulation testing of electrical equipment:
(a) State the reasons for insulation testing and why it is carried out on a regular basis (2)
(b) Describe the procedure for taking a set of insulation readings on an electric motor in-situ, stating the minimum acceptable readings (6)
(c) Explain the term Polarisation Index (2)
10 marks
Oct 2024, Oct 2021
Electric motors
UKM Tuticorin 
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