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What is excitation current or magnetising current in Transformer?
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What is the purpose of loss of excitation protection in generators?

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What is the purpose of a loss of excitation protection scheme using impedance measurement?

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How does an impedance-based loss of excitation protection scheme work?

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How does a loss of excitation protection scheme work for generators?

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Explain the effect of variable excitation on the behaviour of synchronous motor under constant load condition.

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How does a current transformer (CT) differ from a voltage transformer (VT) in protection systems?

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Why hysteresis and eddy current losses occur in a transformer?

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How eddy current loss can be minimized in transformer?

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How can eddy current losses in a transformer core be minimized?

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How do we reduce eddy current losses in transformer?

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How to reduce hysteresis loss and eddy current loss in transformer?

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How can eddy current be minimised in transformer class 12?

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How is the effect of eddy current losses in transformer reduced?

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What is the effect of eddy current loss in transformer?

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What do hysteresis and eddy current losses depend upon in a transformer?

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A 220V/22kV three-phase transformer is connected in star/delta. The protective transformers on the 220V side have a current ratio of 400/5. Calculate the CT ratio on the 22kV side.

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What is the role of a current sense transformer in a power converter?

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What is the purpose of a current transformer in power electronics?
Answer : A **current transformer (CT)** is used in power electronics to measure and monitor the current flowing through a conductor without having to make a direct electrical connection. It is ... monitoring of electrical currents in power systems, which is crucial for control, protection, and safety....

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What is the purpose of a current transformer in power measurement?

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What is the normal or average life expectancy of a Transformer ?

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Select insulating materials for following parts: (i) Insulation between heating element and base plate of electric iron. (ii) Insulation used over copper or aluminium conductor used for making coils. (iii) Transformer bushings. (iv) Insulation between transmission line and pole.

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How does a basic transformer step up or step down voltage?

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Is a transformer AC or DC machine?
Answer : A transformer is an **AC (Alternating Current) machine**. This is because transformers work on the principle of **electromagnetic induction**, which only happens with alternating current. ... coil after the initial moment of current flow. Therefore, transformers only function properly with AC....

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What is the danger of open-circuiting a current transformer secondary?

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What is the purpose of a constant-current transformer?

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How does a current differential protection scheme handle current transformer ratio mismatch?

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How does a current differential protection scheme handle current transformer saturation?

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What is the difference between a voltage transformer and a current transformer?

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Explain the working principle of an optical current transformer.

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