DGVCL Exam Paper (12-06-2016)
The main disadvantages of having poor power factors are:

All of these
Poor voltage regulation
High energy loss in conductor
High cost of station and distribution equipment

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DGVCL Exam Paper (12-06-2016)
An Auto-transformer (which has only one winding) may be used as a ______ .

Both Step-Up and Step-Down transformer
Step-Up Transformer
None of these
Step-Down Transformer

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DGVCL Exam Paper (12-06-2016)
A Step Up transformer :

Step up the level of Frequency
Steps up the level of Voltage
Steps down the level of current
(a) and (b) only

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