Interested to Buy Any Domain ? << Click Here >> for more details...
What is basic difference between Soft Starters And VFD
drives?
- 19 Answers
- 51638 Views
- IBM, I also Faced
- E-Mail Answers
Answer Posted / pinias munyongani j
VFD is used to vary the speed of the motor through varying
frequency. Where as a soft starter is used to smoothly
start up a motor. How ever VFDs can also achive smooth
start ups if the ramp up and ramp down times are increased.
Probably the main reason for using the soft starter is that
the cost is relatively lower than that of a VFD.
| Is This Answer Correct ? | 6 Yes | 1 No |
Post New Answer View All Answers
In both 600/1000 V cable and 450/750 V cable, we can supply 415 V. However for distribution, all utilities are using only 600/100 V instead of 450/750 V. What is the reason?
What is inductance?
i have a 1500kVA transformer what is the kWH meter i need to use?
With a phasor diagram show the effect of increasing the field current of a generator supplying a constant real power and connected to a grid system.
In a large office how do we calculate required number of light fittings, assuming fittings are 4x18W or 2x36W fluorescent fitting ?
Testing procedure of DG alternator stability test
Define corner frequency?
XYZ
how can we calculate the ampacity of the electrical wire/cable. and what are the factors must be considered. pls. elaborate.
why don't we use the generator as a motor? and what will happen?
11 kg trivevter meter has rating of -/5amps. And pt ratio11000/110v and is connected with 11kv ct/pt unit of cr ratio 75/5amps. And pt ratio of 11000/110v while checking accuracy of meter with HT Accuchek meter what value of PT ratio and CT ratio to be filled in Accuchek meter
IF 8255 CONTROL WORD IS 94H,Tell the chip port work mode ?
what happen if field of dc shunt motor opens? what is function of putting res. in parallel to one phase of 3 phase IM? the power supplied by 5A source in circuit is given by------Watt.
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 slip when motor stalls is A 1 B 0 C 13.33% D 10.33%
hi friends ,iam working as genset AVR service engineer in electrical field from past 2 yrs throughout india . i plan to shift in some other job without travelling in same field because i con't travel,i dont know what i do for that so please guide me what job is suited for me,how i can serch the job please anybody helpme iam totally confused
