Answer / taufic

splip ring induction motor, high starting torge motor

Answer / arpan

d.c series motor , because in lift high starting torque and
fast breaking is required.

Answer / sayan

Squirrel cage induction motors with VFD is also used for
lifts & elevators now-a-days.
The main consideration is the duty cycle of the motor.It
has to be S3 or S4 rating because of its frequent starting
& stopping.

Answer / taufic

slip ring motor and Dc series motor

Answer / anamika

d.c series motor bec it is having high starting torque

Answer / sanjeet swarnakar

cumilitive compound motor

Answer / senindra123

dc serious motor .

Answer / shubham

cumulatively compounded
nd
series motor
both motos have high starting torque

Answer / mragang

Commulate motor used in lift....

Answer / nagaraju d m

3 phase Induction motor with VFD

what is mean by PID & Principal of working

6 Answers  

Testing procedure of DG alternator stability test

0 Answers   Amprotec,

i HP = ?? 746 watts or 735.5 and how??

1 Answers  

what are the reasons of low voltage during start the DG?

1 Answers   Godrej, Tata Power,

what is form factor

2 Answers  

In a d.c circuit, if current and resistance are known, power (P=I*I*R) can be determined. This relationship also applied to an a.c circuit. Comment the reason for this.

3 Answers  

Is there a chance for a motor speed to become negative..?? What is the reason for such a phenomenon.? In that case does the motor works as a generator..???

1 Answers  

What is Load commutation and how it is done?Cite some example where this type of commutation is used

2 Answers   NTPC,

Three phase star connected PT transformer primary side one phase fuse is blown what will be the output in secondary side(Secondary side also three phase star connected)

1 Answers  

How is Grounding or Earthing achieved in Planes and Automobiles?

3 Answers   ABC,

How to covert the ac to dc and how to control the dc output?

3 Answers   ABB,

how to protect motor in dol starter having capacity of 30 hp.40 hp?

0 Answers