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Achiever Study Plan ESE-2018: Power System Quiz 9
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Question 1
A three-phase cable is supplying 800kW and 600kVAr to an inductive load, it is intended to supply an additional resistive load of 100kW through the same cable without increasing the heat dissipation in the cable, by providing a three-phase bank of capacitors connected in star across the load. Given the line voltage is 3.3kV, 50Hz, the capacitance per phase of the bank, expressed in microfarads, is----------------
Question 2
A power system with two generators is shown in the figure below. The system (generators, buses and transmission lines) is protected by six overcurrent relays
to
. Assuming a mix of directional and nondirectional relays at appropriate locations, the remote backup relays for 
are
to. Assuming a mix of directional and nondirectional relays at appropriate locations, the remote backup relays for are Question 3
Two generating units rated 300 MW and 400 MW have governor speed regulation of 6% and 4% respectively from no load to full load. Both the generating units are operating in parallel to share a load of 600 MW. Assuming free governor action, the load shared by the larger unit is _______ MW.
Question 4
In operating voltage cables the range of super tension cable is
Question 5
A single core cable 5 km long has an insulation resistance of 0.4 MΩ. The core diameter is 20 mm and the diameter of the cable over the insulation is 50 mm. The resistivity of the insulating material is
Question 6
The maximum demand of a power plant is 40 MW. IF the capacity factor is 0.5 and utilization factor is 0.8 then the load factor and reserve capacity in MW is
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Jun 15ESE & GATE EE
