what is difference between AC VVVF drive & Dc VVVF drive explain their working principle?13 33616
why we step up voltage for reducing the loss, even if voltage and current are proportional anr resistance remains same12 18942
How would we calculate the no of earthing pits required for motor /panel5 18617
for 500mw power production how many range of transformer set in unit please reply if three transformer use .2 4462
Why donot sleep below the tree for night time?12 19462
why the generating voltage in India is 11kV or why is it be transmitted as multiples of 1133 88867
why electric shock due to dc is dangerous than that of ac44 40058
What is the difference between online ups and offline ups?44 186500
need to make a report. Need to choose a 3phase induction motor. Load conditions motor will operate in : Maximum Load: 30 Kw Speed: 2950 rpm Ambient temp: 20 cent Supply voltage: 440V Frequency: 50Hz need to look for the safety factor when choosing the motor, went through catalouge found a few, but dont know how to choose the safety factor allowing an extra load something above 30 KW to avoid any harm.
What is DTR erection?
how is capacitor bank look like
Is there any reason that we get shock on touching phase wire because the earth is at neutral potential? Is there any reason that the earth is at neutral potential because the neutral is earthed in apower station
please give some hindalco placement papers for written exam
does buccholz in a transformer use batteries
What is Control & Relay Panel? And Remote Control Center?
how to calculate the power factor when instantaneous voltage and current has harmonics in it ?
we have 3.5MVA-11/6KV transformer. how can we calculate earth fault current and NGR calculation?
I have 1500/1A CT If i connect this CT in 6.6KV bus bar means what will be the voltage present in CT?
what is the main parts of transformer? how it is functioning? pls giv the ans briefly.
What is conventional thermal current (Ith)
what is the easiest method of short circuit current calculation ? pls. derive with a mathematical example in real life application.
what's the exact magnitude of current, flows through Neutral?
What is different type of Electrical curve and how it protects the equipment's while up-normal situation?