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.
Answer Posted / koti
1. Star / Star
2. Low Voltage Wdg
3. Zero (Cos 90=0)
| Is This Answer Correct ? | 4 Yes | 0 No |
Post New Answer View All Answers
What do you mean by dependent and independent voltage sources?
If a 3 phase induction motor is in off condition in the conveyor and rotor of the motor keeps moving with the conveyor than the resistance of windings of motor varies. why is it so ??
what is the ground fault relay,which purpose it will be use,clearly tell me plz
How to test lightning Arrester?
If 22 KV HT line, Current transformer is 25/5 then how to calculate multiplying factor.
How can maintain our H.T. motors used in cement plant. please send me procedure.
How to calculate size of HT breaker with the help of Amp (current)? Please provide answers with examples.
Why does inductive loads consume KVARs?
If two Transformers are connected in parallel having impedance of 50KA in both transformers will the impedance increase or decrease after connecting transformers in parallel?
How do you determine the size of transformer radiators in a transformer?
why Lightening Arrester Probe sharp at Top of telecom tower.
What is the effect of atmospheric pressure & Temp; on efficiency of motor? Why NGR(Neutral Grounding Resistor) is used in 132/11 KV Transformer & how? What is the use of Auto T/F in Grid Station?
what is the role and fuction of automatic transfer switch in rotary ups
What are differences between Voltage, EMF & Potential difference ?
Match the following a)(X'+Y') b)X'Y' C)XY 1)NAND 2)NOR 3)Carry