what happens to the supply voltage if there is any change in frequency?

6443

In ACS 1000 drive we are using 12 pulse converter,why don't use 3 pulse converter.

2017

If we have to feed a housing complex having load 8MVA, than what would be the better option, either we first step down 33kv supply into 11kv & than 430v or we proposed no of 33/.44 kv transformer, also which option is economical?

2227

What are the different methodes for calculating the short circuit Current?

2059

The ripple frequency in output of fullwave bridge rectifier is a. Half the input b. Twice the input c. Same as input

2262

what is proper capacitor placement? How to evaluate capacitor size?

2124

what is meant by flywheel and its role in retardation test

2434

What is the dependency of stiffness on load angle??

1316

What happens to a motor if it is connected in Delta connection

1059

DRAW ACIRCUIT DIAGRAM OF 100 KVA 415V/55-0-55V DELTA TO STAR TRANSFORMER

2045

what is th basic difference between a d latch time line and a d flip flop time line???

1984

why we dont prefer ac voltage controller instead dimmerstat [if both have same rating] for conducting experiments in laboratories?

2146

what is meant by motor startup supervision & motor load jam protection ?

6011

What is the need of earthing transformer for delta side of a transformer. (Think of a line section between a star/delta transformer at a grid substation and delta/star transformer at a village. An earthing transformer is there at the delta side of the star/delta transformer at grid substation). As there are no ground reference there will not be fault current if a one phase is grounded. Further L-L phase will be sensed by the primary side of star/delta transformer as a L-G fault. So why an earthing transformer is required at delta side

1453

Why 9KV surge arrester having 7.65KV of MCOV?

1576