How can we save electrical cost i.e switchgear, wiring,
conduiting etc in a room?
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Bimetal strip used in overload relay what is that,which types of material used for that & percentage.
Why back emf used for a dc motor? Highlight its significance.
What if the difference beween internal and exrteranal LBB?
what is the relative size of single and three phase?
what does a k rating in a transformer means?
How can I calculate per unit (KWH) fuel (Gas/ Diesel both) consumption 1MW unit?
generally in LT and MV motors we are using 3.5Coresx16,25,35,50 etc cable for supply.although motors is earthed at two point and having all protection.then why we are using that 1/2 core for earthing the motors.while in HT cable we are using only 3core cable for motor supply.generally lt and mv motors are delta connected and ht motors having star connection.whethere it is having any relation with winding connection( star or delta).all motors i am talking about are dol only.can anybody solve my confusion.thanks...
our factory is going under construction mean time transformer 1000 kva 2 nos &load break swithch 12 kv & 4 nos 750 kva 2 nos & 380 kva 2 nos generator to be errcted.how to arrange earth pits &how to earth connect & neutral pit how to calculate in earth bit size.
ho can we calculate the conductor insulation value according to their ratings like voltage,current etc.how insulation value related with voltage,current and power of amachine
can i use the six sigma method which is used in management area, in state estimation of power systems?
How DC earth leakage currents can be reduced ?
Explain cos(theta) and Sin(theta)
Why frequency changes due to load variation in power system ? i.e why when load increases frequency decreases?
How to measure current and voltage in an ELV circuit
when the time of backcharging the transformer three phases only enough or three phase with neutral is must.from these which one is the best one.
