Interested to Buy Any Domain ? << Click Here >> for more details...
WHY THE +VE POLARITY OF 48V DC POWER SUPPLY IS USUALLY
GROUNDED?
- 1 Answers
- 7125 Views
- Tulip, I also Faced
- E-Mail Answers
Answer Posted / neeraj singh
Sorry, but this:
"negative because - it reduces the chances of Noise ,, as
noise tends to add more towards +ve signal "
is garbage. Electrical noise picked up on a conductor is not
affected by the potential of the conductor.
This too is drivel: "as in higher DC voltages , one may
stick to the conductor ( In higher AC however you may be
thrown off )"
It's an old wives tale, nothing more. When subjected to a
shock, your muscles contract. In an Ac shock, they do not
contract and expand at the line frequency (50/60Hz).
Generally if you get a belt to the hand, your arm folds at
the elbow and your fingers close. That may throw you off, or
it may close your grip... ac or dc makes no difference.
| Is This Answer Correct ? | 3 Yes | 1 No |
Post New Answer View All Answers
Why does increasing the magnetic flux in the main field of a d.c motor cause the armature current to reduce??
what is the setting of locked rotor in HT motor ? (answer expecting in percentage)
Who are the manufactures those manufacturing 3Cx2.5sqmm FRLS cables. I heard about FRLS technology adopted only in wires useful for wirings
What is different type of Electrical curve and how it protects the equipment's while up-normal situation?
How much current will a 5 HP delta connected motor at no load will take?Is tat need a starter
what are the reasons of CT circuit faulty in busbar protection scheme?
What is meant by a stray loss of a induction motor??? What is the equation to find it
(1)The demand for electricity , the amount of renewable generation available, the amount of fossil fuel generation available and the cost of the fossil fuel generation are shown in table below period(hrs) demand(MW) renewable (MW) fossil- fuel(MW) cost of fossil fuel(MW) 00.00 - 01.00 2000 1800 2000 30 01.00 - 02.00 2300 2500 2000 30 02.00 - 03.00 2500 2700 2100 45 03.00 - 04.00 2900 3100 2100 50 04.00 - 05.00 2700 2600 2500 45 05.00 - 06.00 2400 2000 2700 50 06.00 - 07.00 2200 1800 2000 36 07.00 - 08.00 2100 1600 2000 36 Assuming that the renewable generation incurs zero cost, determine an optimal generation schedule(specifying the amount of renewable generation and fossil fuel generation used in each period, the cost for each period and the overall cost for 8 hours.)
How can find thermal state value in relay for calculate thermal overload.
what is the difference between neutral and earth
delta motor winding resistance I take normally single winding is 2.5, which value is came delta connection ie RY ?
what is the relative size of single and three phase?
11kv/433v delta/star distribution transformer primary side full load Ht current is 83.33A in , but input side VCB rating 800A.why?
what work will do diffrential realay DG set
What is the difference between amorphous core transformer and CRGO core transformer?.
