Tag: #shortcircuit
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EK Electrical Dec 2020 (Q11)
With reference to electrical system protective devices, explain the purpose of EACH of the following: (a) Overcurrent protection; (2) (b) Short circuit protection; (2) (c) No-volt protection; (2) (d) Reverse power protection; (2) (e) Preferential tripping. (2) Dec 2020 (Q11)
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EK Electrical Jul 2019 (Q10)
With reference to three phase induction motor starters (a) Explain why star-delta starters are employed (2) (b) Explain what is meant by reduced voltage starting in context with star-delta starting (2) (c) Explain, with the aid of power circuit, the sequence of star-delta. (6) AC Starters Jul 2019 (Q10)
UKM Tuticorin 