Tag: #insulationbreakdown
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EK Electrical Dec 2024 (Q11)
(a) Sketch a wiring diagram of a shore connection for the supply of electrical power to a vessel, showing the phase sequence indicator. (4) (b) Explain the consequences of connecting an electrical shore supply in EACH of the following cases: (i) In the wrong phase sequence; (2) (ii) At a higher voltage; (2) (iii) At…
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EK Electrical Jul 2023 (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 6.6KV 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…
