Power Systems
A fuse wire of circular cross-section has a radius of 0.8 mm. The wire blows off at an current of 8 Amp. Calculate the radius of wire that will blow off at an current of 1 amp?

 4 mm.
 0.4 mm.
 2 mm.
  0.2 mm.

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Power Systems
Advantages of shunt compensation is/are

 It requires less maintanance
 smooth voltage regulation is possible by controlling excitation
All of these
 single unit can be used as both capacitance and inductor by adjusting the excitation

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