single phase 230v three phase voltage 415volt why we aren't
used line voltage 690v?
Answer Posted / sks
Because of 50 Hz frequency & RYB phases are rotating at the
phase sequence of 120 degree electrical.
| Is This Answer Correct ? | 2 Yes | 6 No |
Post New Answer View All Answers
What should be the protection scheme for a 15kw, 3-phase motor working in a lathe machine.
Its possible to use 3core 2R of 240 sq.mm cable for 3phases & separely 50sq.mm 3core cable fully for Neutral for connection of PCC to MCC 3ph..4wire system?
do we use links in a dc circuit?if so what s its use in it?
How does a tertiary winding filter harmonic(espcially 3rd one) from entering into load system?
how do we calculate length of starting time and repeated starting of a direct online starter?
Define peak overshoot.
Why HT 11 KV Slipring Motors are connected in star ?
how to find ratio of CT & PT in 66/11kv 12 mva supply system ? explain with calculation.
How to check the thermocouple is correctly connected to cable for K type? (i,e positive pole is connected to non magnetic conductor and negative pole is connected to magnetic conductor)
In dc ckt. 24v or 110v, which one is more efficient and why?
in a silicon diode we can measure .7v in a voltmeter.but why we can't use this voltage for using?
WHAT IS THE SIGNIFICANCE OF VECTOR GROUPS IN TRANSFORMER? WHAT WILL BE EFFECT WHEN PHASE DISPLACEMENT CHANGES IN TRANSFORMER?WHAT IS THE NEED TO BE PHASE SHIFT CHANGE BETWEEN THE PRIMARY AND SECONDARY WINDING
We have a distribution transformer of 750KVA/11kv/440v and an AVR (Servo Stabilizer) of 750KVA on the LT side of distribution transformer. Also we have an ACB of 1200A on the output of distribution transformer (that is on the input of AVR). We want to have an MCCB on the output of AVR. What should be the rating?
BRIEFLY EXPLAIN THE STORAGE CLASSES AND THEIR TYPES IN C
Maintenance of transformer???