why we can't use more then 50 hz in india ? Is it possible ?
Answer Posted / waqas ashraf
there are two standards
1)220v & 50hz
2)110 & 60hz
if we use 220 & 50: benefit is that we have high voltage &
low freq...disadvantage is that high voltage(220v) can cause
serious life damage risk.
&
if we use 110 & 60 :benefit is that we have less voltage as
compared to 220 but high voltage than 50 hz...
so life risk decrease in 2nd case...
| Is This Answer Correct ? | 1 Yes | 8 No |
Post New Answer View All Answers
Why strting torqe high in inducation motor?
Draw a 230kv two-bus bar system showing the following. 1.Two generators (150MW) each connected through one 15.75/230KV transformers 2. 1 outgoing lines 3. Two 230/130 KV transformers 4. BUS PT's 5. CT
how net resistance islow in star connection and viseversa in delta connection...? if anybody could explain in detail it wud be helpful.
What is meant by sag?
During underground cabling in landscape area what did we cover the cable with to prevent the electric shock & protect the cable?
1 “earthing” for bonding of equipment and circuits to common plant earth electrode potential, 2 “protective earthing (PE)” when this bonding is required for personal safety provisions 3 “grounding” for interference suppressing bonding of screens, sys-tems with ground level 4. low-impedance earthing ? 5.primary earthing system and secondary earthing system what is that? 6.earthing electrode or mesh net earthing electrode ? very confusing , simple but very informative help required ? i will be very very thankful to you guys.
we use 400/5A ct and 35/roor3KV,/0.1/root3KV,0.1/root3KV pt ratio. What is the multiple factor of this meter.
Vibromotor 252MV 1/4HP2P..what is mean by 252MV?
(1)WHAT HAPPENS WHEN SUDDENLY LOAD GIVEN TO THE INDUCTION MOTOR ? (2)CAN WE MAKE WOOD AS MAGNET ? (3)WHAT IS THE VALUE OF MAGNETIC FLUX DENSITY IN TRANSFORMER ? (4)WHY WE ARE USING ELECTROMAGNETI NOT ELECTROSTATIC IN MACHINE ?
How RTCC panel is working and give single line diagram for RTCC with transformer?
WHICH SIZE A.B.CABLE IS USED FOR 11KV.
What is Meter MF if External CT Ratio is 150/1 , PT Ratio is 132/110 Meter CT Ratio is 200/1 & Meter PT Ratio is 110/1
Block diagram of Power line communication?
HOW WE KNOW IN PHYSICALLY THE CONTACT SURFACE OF A VACUUM INTERRUPTER IS GOOD OR GOING TO DAMAGE IN A VCB AFTER ABOVE 500 TIMES OPERATED.
what is the best transformer oil breakdown voltage?