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Recent questions tagged loss

1 answer 11 views

State the factors affecting hysteresis loss.

asked Sep 4, 2018 by Shimroz123
1 answer 52 views

A 40 kVA transformer has a core loss of 400 W and a full load copper loss of 800 W. The proportion of full load at maximum efficiency is

asked May 8, 2018 in Electric Power Transmission by Shimroz123
1 answer 32 views

The eddy current loss in a dc generator is 400 W at 40 Hz frequency of reversal and constant flux density. When frequency is increased to 50 Hz., eddy current loss is :  (A) 256 W (B) 320 W (C) 500 W (D) 625 W

asked Apr 30, 2018 in Switchgear And Protection by Shimroz123
1 answer 41 views

At full -load of a transformer, the iron loss and copper loss are 3000 W and 4000 W respectively. Then total loss at maximum efficiency is :  (A) 7000 W (B) 6000 W (C) 8000 W (D) 4000 W

asked Apr 30, 2018 in Electrical Engineering by Shimroz123
1 answer 27 views

Corona loss in transmission lines can be reduced by (A) using small diameter conductors (B) using bundled conductors (C) using less spacing between conductors (D) increasing the transmission line voltage

asked Apr 28, 2018 in Power system by Shimroz123
1 answer 16 views

Dielectric loss in a capacitor is best measured by (A) Wien Bridge (B) Schering Bridge (C) Anderson Bridge (D) Heaviside-Campbell Equal Ratio Bridge

asked Apr 25, 2018 in Electrical Measurements and Instrumentation by Shimroz123
1 answer 37 views

A ferrite core has less eddy current loss than an iron core because?

asked Mar 25, 2018 in Electrical Engineering by Shimroz123
1 answer 35 views

In a magnetic material hysteresis loss takes place primarily due to?

asked Mar 25, 2018 in Electrical Engineering by Shimroz123
1 answer 30 views

In a circuit containing R, L and C, power loss can take place in?

asked Mar 25, 2018 in Electrical Engineering by Shimroz123
1 answer 30 views

In a loss-free R-L-C circuit the transient current is?

asked Mar 25, 2018 in Electrical Engineering by Shimroz123
1 answer 320 views

What is the difference between eddy current and hysteresis loss?

asked Mar 15, 2018 in Electrical Engineering by Quiz
0 answers 33 views

How can power loss be reduced?

asked Mar 10, 2018 in High voltage engineering by Quiz
0 answers 19 views

How do you calculate power loss?

asked Mar 10, 2018 in High voltage engineering by Quiz
1 answer 34 views

Why high voltage can reduce power loss?

asked Mar 10, 2018 in High voltage engineering by Quiz
1 answer 156 views

Explain hysteresis loss, eddy current loss and skin effect limitations with reference to magnetic material.

asked Feb 16, 2018 in Unit 3 by Quiz
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