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GATE 2023 Power Systems Quiz 45
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If the length of the cable is halved, what will be the effect on capacitance C will be_________?
In underground cables the electrostatic stress is Maximum at_____ and Minimum at _______?
A 3-phase, 3-core cable of 50 Hz, 11 kV has inter-phase capacitance between each pair of conductors is 0.3 µF and capacitance between each line and sheath is 0.5 µF. Find the per phase charging current?
Which of the following statement is incorrect while comparing the overhead lines and the underground cables?
A kilometer of a 3 core, 3 phase metal sheathed cable gave the following results on a test for capacitance (i) Capacitance between bunched conductors and sheath is 2 µF (ii) Capacitance between two conductor bunched with the sheath and third conductor is 0.9 µF with the sheath insulated. Find the capacitance between any two cores.
A concentric cable has a conductor diameter of 1 cm and an insulation thickness of 1.5 cm. When the cable is subjected to a test pressure of 33 kV, the maximum field strength will be nearly
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Oct 14ESE & GATE EE