Interested to Buy Any Domain ? << Click Here >> for more details...
1. which type of transformer connection is preferred in
case of power supply transformers?
(A) Star/Star
(B) Delta/Delta
(C) Star/Delta
(D) Zig Zag/Star
2. In a power transformer usuall which winding is closer to
the core?
(A) Primary winding
(B) Secondary winding
(C) Low Voltage winding
(D) High Voltage winding
3. The power factor of a purely inductive load is
(A) Zero
(B) Lagging
(C) Leading
(D) Unity.
- 9 Answers
- 12597 Views
- CECRI_Central_Electrical_Research_Institute, I also Faced
- E-Mail Answers
Answer Posted / moloy dey
1. In case of supply transformer DELTA/STAR is used to
ensure 440[Ph to Ph] and 220 [Ph to N] both type of consumers.
2. (A) Primary winding stays close to the core.
3. The power factor of a purely inductive / capacitive load
is always (A) Zero, Hence, the power drawn by a
pure/loss-less inductor/capacitor is VxIx'0' = '0' [Zero]
| Is This Answer Correct ? | 1 Yes | 5 No |
Post New Answer View All Answers
There are a trformer and an induction machine. Those two have the same supply. For which device the load current will be maximum? And why?
We need to current density & short circuit calculation at 65kA for aluminium & copper busbar.
Earth has zero potential then what would be the neutral potential ?
How to assume answer to electrical questions
What happen Grid EARTH plat got cut.
Is phenomenon of resonance is harmfull fr the machine? if not or if yes please explain it?
How the frame size of a flange mounted AC induction motor is calculated?
what is the ATS .And how it works.
Why frame of the motor is specified?. If we mention KW and voltage level,automatically frame is decided or separately frame is compulsory to mention?.
Define load factor?
What are the different circuits in thermal power plant?
actually i can't understand what is 3dB ? and it's really not clear to me.please any one let it me be cleared.
What is the working mechanism of OLTC in Power Transformers????
Whether IP65 enclosure box blocks ventilation if driver for LED have to enclosed inside IP65 box
What is the name of the winding from which the supply is taken for load connections?
