Tag: #reversepowerflow
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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 Dec 2019 (Q9)
With reference to the protective devices fitted to a main alternating current generator, explain EACH of the following (a) Overcurrent and short circuit protection (2) (b) Generator negative phases sequence (2) (c) Loss of field (Excitation) (2) (d) Under voltage (2) (e) Reverse power (2) Generator & circuit protection Dec 2019 (Q9)
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EK Electrical Mar 2017 (Q11)
With reference to the protection of electrical equipment in a distribution system (a) State the aims of the protection devices. (3) (b) List the parameters that are monitored and acted upon by the protection devices (4) (c) State, with reason, THREE causes of electrical fires (3) Electrical safety Mar 2017 (Q11)
