One 15kw motor Why we used star delta feeder?why not used DOL
please explain in details
Answer Posted / brd ganesh
We can use dol stater up to 5HP (dol stater can
not control starting current of motor but protect
by them up to 5HP). We have been using dol
staters to lower rating ac motors due to low cost.
| Is This Answer Correct ? | 3 Yes | 0 No |
Post New Answer View All Answers
How to decide no. of Step and Kvar for APFC Panel 40 kvar MD: 33.12 KVA Avg pf : 0.8540
WHY MOSTLY Rph IS USED FOR CONTROL CIRCUITS AUX. SUPPLY ?
why occ characteristics curve in not tracing back when we are bringing back the rhoestat?
in control scheme dc logic wiring commonly using negative loop,what is the reason?if we use positive looping what will happen?
why -48 volts dc used in telecommucation
if the number of poles generated in stator and rotor side of an induction motor are different then what will happen and why?
how to calculate sizing of NGTR (Transformer rating,Loading resistor value and Current rating of resistor) and what is the X/R ratio. Details : 11kV,Capacitance 1.73532 micro farads,40kA for 1sec.
What happens if the Capacitive Voltage Transformer Primary neutral is not earthed. There is a CVT between Transformer and source, and the CVT neutral of the transformer is not earthed, does it effect the transformer while charging or does it effect the transformer charging process.
We have Diesel generator of 200KW. fuel consumption is always same,even connected light load or full load. Is it right?
how can we select the type of wire.what factors we have to look on it , do we have some formula to calculate it. please guide me on it
What are the advantages of hydropower?
I have 4 busbar of 1000 ampere. we use 4 busbar to make 4000 ampere in one phase.my problem is that when we applied 60% load on that then busbar produced high noise.what is the reason of that and how can i minimize that noise.
How servo stabilizer works.
what is the meaning of the symbol << >> put in transformer drawing
Where burned of electricity,when,who, & why.