Why Stabilising Resistor used in REF circuit ?
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how to detect the presence of underground cable(while digging road)etc. -give the name of instrument
difference b/w semiconductor and insulator
1hp single phase load = howmuch 3 phase load
If 110V DC Coil Contactor taken 15ma DC on load,than how much AC current wil be taken?
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Why indian power system in 11kv,22kv,33kv,66kv,110kv,220kv ? 2) Why ups required dedicated earth?
why in transformers voltage given is in the multiple of 11
what is derated current of power cable & what is formule to find derated current?
what is the function of anti-pumping in circuit breaker?
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what will be the maximum winding temperature of 6.6kv HT motor 450kw, Full load current 49A. 50Hz Frequency.
what is mean by harmonics
how power saving takes place through VFD?
How we can determine short circuiting current any plant and for example a plant which power generation is 415 volts and plant load is 500 kw.