Define the term line regulation.

Define the term line regulation. 
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Answer :

Line regulation is the ability of a power supply to maintain a constant output voltage irrespective of any changes in input voltage. 
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Autotransformer starters or compensators are sometimes used with polyphase induction motors to _____________. A. reduce the voltage applied to the motor during the starting period B. increase the voltage for 'across-the-line starting' C. provide a backup means of voltage regulation for emergency starting D. allow the voltage to be either stepped up or down, depending on the application, to ensure full torque

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The square root of the ratio of line impedance and shunt admittance is called the (a) surge impedance of the line (b) conductance of the line (c) regulation of the line (d) none of the above

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Last Answer : (a) surge impedance of the line

State the need of regulation. Explain the concept of load & line regulation.

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For a short transmission line with r/x ratio of is 1.0, the regulation will be zero when the load power factor is

Description : For a short transmission line with r/x ratio of is 1.0, the regulation will be zero when the load power factor is

Last Answer : For a short transmission line with r/x ratio of is 1.0, the regulation will be zero when the load power factor is 0.707 lead