why do we use star-delta starter. what is its need?
- 6 Answers
- 47489 Views
- I also Faced
- E-Mail Answers
Answer Posted / yogesh
in star-delta starter the starting current is reduced . Its about 1.5 to 3 times the full load . in DOL starter, it will be 6 to 7 times . Its because the starting current taken is just the one single phase current(R or B or Y)( phase current = line current) . thats why star-delta is used in HT motors .
| Is This Answer Correct ? | 10 Yes | 14 No |
Post New Answer View All Answers
battery capacity use of made?
A 100W electric lamp is supplied from a 115V, 60HZ source. The peak instantaneous power dissipated in the lamp filament is
Define thermal resistance in the context of power amplifier.
we are having 15kw and 3kw motor both can run in same time , instead of using copper we are using ug aluminium cable , 35 sq.mm is suitable for its current carrying capacity..?
What is Load sharing of Transformer ?
advantages & disadvantages of Lagging and leading power factor .
please send the last 5 years {{{JUNIOR ENGINEER - ELECTICAL, ELECTRONICS RRB CHENNAI and secundrabad}}} TECHNICAL question papers TO MY EMAIL ID dinesh100701@gmail.com
What is the current carrying capacity of 0SWG,3SWG,10 & 12 SWG solid bare overhead copper conductors?
What is Primary And Secondary Injection Test of Relay and Other Electrical Devices. How IT is carried out.
What is the reason of polyphase induction motor tripping suddenly on high current during running at 70% laod? Motor IR , winding resistance & inductance balance. Motor no load current is balance and ok as per mgfr. data.
What is the difference between the impedance percent and impedance voltage ?
Define piezo-electric effect?
what is the minimum recommended leakage current of an earthed cable connected to the body or skid of an alternator
Difference between ac parallel circuit and ac series circuit?
what is errection pcbs?
