Answer / Nandan Singh

It's theoretically possible to control a single-phase motor with a star-delta starter using a DC power supply, but it's uncommon in practical applications. Traditional star-delta starters use a rotary switch operated by AC voltage and are designed for phase control. Controlling them with DC power would require a custom controller or conversion circuit.

why impudance relay used for medium transmission power system? why not others?

1 Answers  

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how we calculate the short circuit capacity of the busbar in LV & HT?

1 Answers  

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Upload data by LSMW via BAPI in SAP system.

1 Answers  

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in india why the generating voltage is like 11kv,22kv etc

1 Answers   Alstom, Ford,

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How to know th details about an electrical Drawing ? Please mention the easy method.

1 Answers   Siemens,

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Dear All, I am new in construction company , my boss ask a question at time of interview , If we have 60MW generation and Single Power Transformer step-up we have. if CMR 50/60MVA , ONAN, ONAF respectively , is it sufficient or not ? for that much power to transfer,

1 Answers  

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can we use relay in fan?

0 Answers   NTPC,

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3 Answers  

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1 Answers  

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what is LA CT PT panel?

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in dc machines in the armature nature of power is ac but why we take rasistance instead of impedance?

1 Answers  

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how calculate the current faut level

2 Answers   ABB,

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