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What is meant by sag?
Draw a SLD for main panel for school having connected load of 1200kw and emergency generator 200kw.also show the increase of additional load of chiller 225kw in the lv panel indicating meter postion size of transformer ,cables and capacitor bank.
Why there are some equipment(i.e:TV) that using 2-pin plug instead of three? What happen if there is current leakage? Are we going to get electric shock??
Can anybody please refer the best and simple book for about Protection relays and in detail of all its protection ?
How do we calculate the Out put voltage of generator, after the excitation is being given?
what is the advantages og idmt relay over magnetic relay??
Is a contactor (or master relay) required between incoming lines and a VFD? The question goes to safety. If a contactor were used before the VFD and an e-stop engaged then the motor will coast to a stop (i.e. VFD loses power) instead of stopping much faster if the VFD braking fucntion were used. It would make more sense to keep power on the VFD.
What is boucholz relay and the significance of it in to the trformer?
how does a shunt reactor maintains the bus voltage???
On 400 amp factory load how kvarh capacitors provide
How we calculate the size of ht cable for any transformer
WHAT IS IM (INDEX OF MOUNTING )IN MOTORS
Why electrical power generation and transmission done in 3 phase system not more than 3 phase ?
how is control wiring coding is done in a CRP panel ?
IF 8255 CONTROL WORD IS 94H,Tell the chip port work mode ?
