Answer / manoj

the motor should have high starting torque to lift
which is offered by
DC SERIES MOTOR
THREE PHASE SLIP RING INDUCTION MOTOR

Answer / arya

DC Seies motor

Answer / ravi chandra

In the case of lift and flights they need high starting
torque...
so 3 phase slip ring induction motor will be used.

Answer / amir siddiqui

DC series motor should be used because for lifting purpose there is a requirement of high torque

Torque=1speed(N)

Answer / faiz ansari

double cage induction motor

Why use only DC supply to charge batteries why not AC Supply??

3 Answers   APC, Emerson,

How to decide the input and output circuit breaker for a 1600kva transformer.Is there any calculation is involved.

5 Answers  

Since phi is the angular displacement between V & I, then why we use phi in power triangle ie. when showing active, reactive & apperent power in triangular manner & if it is ok then where is V & I in the triangle.

1 Answers  

defination of static variable compensator

1 Answers  

In DC while we mention the voltage we are using -48V but in case of AC we mention only 230V not -230V, why we using -48V not 48V

2 Answers  

how to calculate full load current of transformer & induction moter ?

2 Answers  

what is the formula to calculate kva genset required for a given load in kw.

3 Answers  

What is the ideal position cooling fan inside the dc motor?

0 Answers   Kay Bouvet,

What difference between TRANSFORMERS and TRANSDUCERS???

1 Answers  

what is different between synchronous & asynchronous motors

3 Answers  

define power quality

1 Answers  

what is differents between static stablizer and servo stablizer

3 Answers