Answer Posted / 7anoter4
There are generators of which supply voltage is up to 30 kV
[usually 22-23 kV for 500-800 MVA].The problem is the
insulation- will be very expensive for higher voltage-the
generator it self and the auxiliary switchgear and
transformer. A medium voltage generator and a step-up
transformer is cheaper and more convenient for maintaining.
| Is This Answer Correct ? | 17 Yes | 4 No |
Post New Answer View All Answers
how define the torque in ac drive. from electrical side in the drive friquency ,voltage and current three factor is there.
Is MEN and RCD related to each other ?? IF yes then how??
What is mean by spike arrester(Voltage Operated)
A 400 V, 50 Hz, Δ connected synchronous generator has a field reactance of 0.1 Ω and armature resistance of 0.015 Ω. At full load, the machine supplies 1200 A at 0.8 pf lagging. Under full-load conditions, the friction and windage losses are 40 KW and the core losses are 30 KW. What is the machine’s overall efficiency? Ignore any field circuit losses.
How to know Resistance and Reactance value of main and aux winding of single phase capacitor start capacitor run induction motor to find capacitor value?
What will be the diameter of pipe between conservation tank and transformer
Saving in copper achieved by converting a 2 winding transformer in to an auto transformer is determined by A voltage transformation ratio B load on secondary C quality of core material D size of transformer core
How to design the earth grid for lightning protection in an industry
What is deference between MCB & MCCB & ISOLATOR
Inductor and capacitor........power in one phase and ...... in it another phase.
As per the Anchor capstan motor specification, full load current is 200A. starting current is 1750 A and acceleration time is less than 8 seconds. Please guide for selection of cable size.
Define availability (operational)?
how to select the double earth conductor if 21A full load?
Why is better to have a minimum ceiling voltage of 250% than 160%?
What is the differentional relay...what is the work of this in power Tx. how it is works..