Answer / ssnslm

Frequency changer can step up or step down the frequency.
power converter(cycloconverter) converts (step-up or step-
down) the input supply frequency to the desired frequency
with or without voltage control. Cycloconverters are used
to power the high frequency induction furnaces in steel
industry

how to caculate cable size for given amperes

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we are operationing 3NOs 800 Kva generators by singronyus.specialey evening time our panel trip. the panel showing generator earth fault

4 Answers   RRB,

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why we are discharging h.t supply during shutdown time

1 Answers  

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why we are called the 4-20ma transducer,not 0-20 ma transducer??

3 Answers  

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what are the main Parts of VCB

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2 Answers  

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7 Answers   HIL,

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1)Why potential transformer primary site grounded? 2)can be loop between neutral & body for grounding? 3)What is the difference between ELCB &RCCB? 4)Why we use iron core in transformer insted of wooden core? 5)what is the principle of excitation? 6)Why we test the core balance test for transformer? 7)what is creepage?What is the creepage length for insulators at different voltages? 8)How much type of relays used for differential protection of generator,transformer & busbar protection?

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concept of busbar and load dispatching..?

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how pt is using

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what is phase and neutral.

2 Answers   Birla,

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What is meant by stator? What is meant by rotor?

0 Answers  

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