what is the problem in manufacturing transformer with 0
degree phase displacement.???why alwasys go for DYn11 or
DY5?Whys not DY0 i.e zero degree displacement between
primary and secondary side vectors?
Answer Posted / sujeet pandey
there can transformers with 0 degree or 180 degree phase
displacement like in the case of star-star or delta-delta .
In case of star-delta or delta-star transformer there is a
phase difference of +30 or -30 degree depending on
connection b/w them.This phase difference is due to the
relation b/w phase voltage of primary winding and phase
voltage of secondary winding.
| Is This Answer Correct ? | 18 Yes | 2 No |
Post New Answer View All Answers
how to calculate the lightning arrester conductor @ no of earth pits required
In all analog voltmeters or ammeter showing some small size symbols. as well as a star and in star 2no. digit, resister symbol,and other. what is that's meaning ?
what do you mean by plant earthing system.
How we calculate the size of ht cable for any transformer
What are the main advantages of generalized error co-efficients?
Explain the function and difference of Restricted earth fault, simple earth fault and sensitive earth fault with connection diagram.
why the active power flow of some line is increased when the active power of out is cut ?
What is evaporator & condencer & compressor
what happens when series resonance occurs?
what is the difference between delta delta and star delta connection transformer? why we use delta delta transformer since it need earthing transformer for grounding?
What is the difference between shortcircuit current, rated current of cable & MCB with example? What will be the size of cable required for 5.5 KW motor (Full load current 10 Amps approx.), Starting current with DOL is 120 Amps. Aprrox. Short circuit current with LLLG fault is 2000 Amps Approx.
What is the tests required for a 132 kV, 400 kV , 765 kV for a Circuit Breaker and Power Transformer before commissioning ?
What is measurement?
What is the technical difference between On delay timer and a Star delta timer?
How would you calculate power loss in a resistor?