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EK-General : 2014/JUL/11 – 2014/OCT/10 – 2015/OCT/09 – 2023/JUL/11
Question
Q11. With reference to testing High Voltage equipment:
(a) explain why earthing down is considered essential; (2)
(b) state the operating voltage for an insulation resistance tester (megger) suitable for 6.6 KV equipment; (1)
(c) describe how an insulation resistance test is carried out on High Voltage equipment, making reference to personnel safety; (5)
(d) explain why infra red temperature measurement is used on High Voltage equipment. (2)
Asked in Year/Month/Ques No.