EOOW EKs – EOOW SECTION C – GENERAL ENGINEERING KNOWLEDGE : 2017/FEB/06 – 2017/DEC/06 – 2023/MAR/06
Question
Q6. Explain why EACH of the following protective devices are fitted to a main electrical switchboard
(a) Reverse power (4)
(b) Under voltage (4)
(c) Main circuit breaker overcurrent (4)
(d) Preference trips (4)
Asked in Year/Month/Ques No.
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