why battery dc voltage become Half when we check with
respect to ground for example 120volts + and - terminals
and when we check + terminal with Earth thats 60volts why
60volts we can not ground the battery.
- 6 Answers
- 16461 Views
- GE, I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
The midpoint of rectifier transformer secondary is
earthed.The potential of ground is taken as +/- 0.The
voltage measured between any terminal wrt ground will be +/-
half the full voltage.This method is helpful to trace a
single polarity and for earth fault locator.
| Is This Answer Correct ? | 6 Yes | 3 No |
Answer / sarvesh kotiyal
Because your Ground is not connected with V-(V- which is taken as reference point). when you check Voltage respect to ground that time you should also check the resistance between V+ to E & V -E which is equal(the Value which is higher than 10 mega ohm ).
Simple apply voltage Divider & you will get half Voltage
| Is This Answer Correct ? | 1 Yes | 0 No |
Answer / koti
The value shown is a capacitive value i.e it is due to capcitance effect wyou are getting some value. If you put a lamp it will not glow.
| Is This Answer Correct ? | 2 Yes | 2 No |
The above answer is correct.If you use an earth fault
indicator ,you are able to measure voltages. And if you run
both leads along the ground or a metal surface ,you can
measure voltages with a digital voltmeter ,as the
capacitances between the leads and the surface/ground, bring
the surface/ground to +or- zero potential.
| Is This Answer Correct ? | 0 Yes | 0 No |
Answer / sarvesh kotiyal
the resistance between the supply and ground is very high(1-5gohm). so Ideally it should not show any voltage but Internal Input resistance of multimeter approx 10 Mohm for Voltage measurement which is almost a short circuit in comparison to earth .so when you check voltage with respect to earth
V + to E = 24 * 10/10+10 = 12 V.
| Is This Answer Correct ? | 2 Yes | 2 No |
what kind of battery is used in laptops
If a three phased motor or not working phased change on poles so how to find which one red yallow & blue
from where the self excitrd induction generator get the power?why is the voltage regulation is poor of seig?
How a band pass filter is constructed?
why are distributed windings generally used in alternators?
why in america the supply frequency is applied as 60 HZ. but in india we use 50 HZ.
1 Answers Elcom International, HCL, NTPC, OMC,
advantage and disadvantage of team work?
what is -24vDC and how can generate this -24vDC
what is diffrances between fuse and breaker protection? which one is best?
how to calculate the cable size in sqmm if load (kw) is given?
maintenance parameters of sewage treatment plant
I NEED RRB SYLABUS FOR JE ELECTRICAL ,PLEASE SEND TO MY E- MAIL ID joo28_eee@yahoo.co.in
-
Civil Engineering (5085) - Mechanical Engineering (4451)
- Electrical Engineering (16632)
- Electronics Communications (3918)
- Chemical Engineering (1095)
- Aeronautical Engineering (239)
- Bio Engineering (96)
- Metallurgy (361)
- Industrial Engineering (259)
- Instrumentation (3014)
- Automobile Engineering (332)
- Mechatronics Engineering (97)
- Marine Engineering (124)
- Power Plant Engineering (172)
- Textile Engineering (575)
- Production Engineering (25)
- Satellite Systems Engineering (106)
- Engineering AllOther (1379)
