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
- 16400 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 |
In a tap changing transformer where is the tap connected, is it connected in the primary side or secondary side?
Pl.brief me about Electrical power distribution system from Main generating station to Industry.What is the use of in between station.
How to differentiate 220 Kv & 132 Kv line transmission tower if there are no specifications given on towers?
What is differnce b/w tie breaker and bus coupler?
what is ripple component in ac supply?
is it possible for different brand of H.V transformers to run or operate in parallel to each other? if so how much disturbance can this affact the H.V bus bar?
How impulse levels are calculated that for 11kV impulse is 75kvp, for 24kV impulse is 125kvp ?
what is HVDC, what are advantages over conventional system?
why full load voltage is less than no load voltage?
How I calculate the ELCB for circuit breakers?
how to operate and maintenance of 1500 kva diesel generator set
why we r using 4-20ma instead of 0-20ma in instrumentation
-
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)
