Explain principle of Soft-starter & how its working???
- 12 Answers
- 25893 Views
- MAHINDRA, I also Faced
- E-Mail Answers
Answer Posted / ubaid
When motors starts its take 5 to 7 times much current then its rated current and produce a mechnical jerk to the winding due to which winding of motor burns soft start limts the starting current and torque and we will give step by step voltage one the motor starts smooothy soft start will bypas by magnetic contactor and motor run on full load we use soft start for better efficny and increasing the life od motor
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
what is acceptable leakage current for 33kv cable while doing high voltage test for cable? how to calaulate the leakage current for 33kv or any rated cable?
sourse is 66 KV / 350 MVA, transfarmer is 1000 KVA 6.6 / 0.415 kv, iF fault is 28.75 MVA on 0.415 KV Bus then calculat the Transfarmer Impidance
Why is tan-delta test and capacitor measurement done on alternator?
why US countries maintains 110v and 60HZ
What is transister define the transister ammiter ,base, colector.
What is the difference between DOL starter and star delta starter
what is the saturation point of crgo lamination.
On what basis do you decide the ONAN (Oil Natural air natural) or Dry type transformer for a project?
An 8 pole, 50 Hz, 3-phase IM is loaded to a poing where pull out torque will occur. The rotor resistance per phase is 0.3 ohm and motor stalls at 650 rpm. The rotor reactance at stand still is A 2 ohm B 1.25 ohm C 3.15 ohm D 2.25 ohm
why is a power transformer used only occasionally?it is used to step up at generating stations?and that needs to be done all day long !!!!!!!
why do we need to use 3c+3e cable, normally i select only 3c+e cable and i think it is enough. pls explain the usefull of 3e cable ( in this project the earthing system is well done)
i have 500 amp inductive load of motors ,,,pleas tell me how can i calculate for capacitor bank for improving my power factor to 99 .....calcullations for capacitor bank,,,,
What is the effect on in Zone and out zone fault if Phase side CT is Vk/2<30 mA and Neutral side is CT is Vk/4<30 mA for Transformer REF protection
Is it acceptable of installing an earth pit in planters area where bare copper cable, earth rod and connection are susceptible to corrosion due to water?
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.
