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How do you do Gaussian elimination on a calculator?

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D.C. generators are installed near the load centres to reduce line losses.

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Identify the increasing order of voltage regulation of the following dc generators a same load :  (A) differential compound, shunt and under compound  (B) shunt, differential compound and under compound  (C) under compound, shunt and differential compound  (D) shunt, under compound and differential compound

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In DC generators lamination core are generally made of?

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Two synchronous generators operating in parallel supply a common load of 2.5 MW. The frequency-power characteristics have a common slope of 1 MW/Hz and the no-load frequencies of the generators are 51.5 Hz and 51.0 Hz, respectively. Then the system frequency is (A) 50 Hz (B) 51 Hz (C) 51.25 Hz (D) 51.5 Hz

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1 answer 41 views

Two synchronous generators G1, G2 are operating in parallel and are equally sharing KVAR (Lag) component of load. To shift part of KVAR from G2 to G1, while keeping terminal voltage fixed, the following action must be done

asked May 3, 2018 in Power system by Shimroz123
1 answer 17 views

D.C. motor is to a drive a load which is almost nil for certain part of the load cycle and peak value for short duration. We will select the?

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1 answer 72 views

D.C. motor is to drive a load which has certain minimum value for most of the time and some peak value for short duration. We will select the?

asked Mar 20, 2018 in DC motor by Shimroz123
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If a self excited d.c. generator after being installed, fails to build up voltage on its first trial run, the first thing to do is (a) reverse the field winding connections (b) increase the field resistance (c) decrease the speed of prime mover (d) increase the speed of prime mover  

asked May 25, 2018 in DC generator by Shimroz123
1 answer 17 views

For a D.C. generator when the number of poles and the number of armature conductors is fixed, then which winding will give the higher e.m.f. ?

asked Mar 20, 2018 in DC generator by Shimroz123
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