in case dc we mark as + ve & -ve..but in case a.c. we mark as
ph&N...Y LIKE PLZ TELL ME
Answer Posted / samarpal singh
No polarity in A.c
Is This Answer Correct ? | 3 Yes | 5 No |
Post New Answer View All Answers
A 10 MVA, 66KV, 50Hz, Y-connected 3-phase alternator has synchronous reactance of 0.635 Ù. It is working at full load at 0.8 lagging p.f. condition. Find torque angle, neglect armature resistance.
IF alternator SCR value will be high means what happen in alternator efficency at operating power factor of 0.8
How to calculate the size of earth cable to earth the neutral of UPS ?
What is the comparison of PILC and XLPE cable
Iin ESP why positive is grounded ? why not negative ?
On what basis the the size of Lightning arrester for buildings are selected ?
What will happen if the armature resistance is in minimum position and the field resistance is in maximum position while starting the motor
What would be the size of wire used for 2 Ton of window A.C?
when we have to purchase the transformer by own i.e how much load will preferred HT connection?
why we use circuit breakers for switching instead of normal switching device?
What is trip and closing coil in cb? Why need of them
how will reduce the voltage. if 12volt/250ma transformer toreduce 6 volt
what is kvarh? Please define it With calculation General motors ?
what is the easiest method of short circuit current calculation ? pls. derive with a mathematical example in real life application.
why sometime we get electrical shock while touching the ballon of dish tv connection ? which we should not get.