Answer / ganesh.u

bldc motor is a suitable for lift,it has high starting torque greater than infuction motor and controlling is easy.

Answer / amir

Hydraulic. Motor

Answer / rakesh kumar

d c series motor use becouse high starting torqe and smothly speed control this motor never use no load condition only use full load conditions

Answer / giridharan

3 phase induction motors

Answer / deepak

Dc shunt motor

Answer / atharv singh

AC universal motor having a hight tourque......so it is more benificial to use in lift

Answer / kishor

ac series motor is used...because AC series motor is high starting torque

Answer / er.nitesh

Squirell cage induction motor

we convert 66kv to 33 kv to 11kv to 440v. why can't we directly convert 33kv to 440 ?

9 Answers   EMC, Jakson, L&T,

what is the difference between isolation and insolation ? please explain in detail with example.

5 Answers   ABB,

Why frame of the motor is specified?. If we mention KW and voltage level,automatically frame is decided or separately frame is compulsory to mention?.

0 Answers   DAE,

what is the function of generator exciter

11 Answers   NTPC,

How to calculated capacitor rating both HT

10 Answers   Reliance,

What is the difference between the relay and the circuit breaker?

0 Answers  

How are load losses and no-load losses measured at site in a DG set?

0 Answers  

if 20 hp motor starts directly stars and contenious run . what will be the effect.

11 Answers   HP, Ohsung Electronics,

I have a question, I visit 01 site and face a problem, there is 2.5 ton Air Con working, when air con compressor is running at that time rectifier voltages are increasing upto 290-295 v and rectifier is giving main high alarm (rectifier is APC single phase, before starting compressor rectifier voltages was 230v. when air con is going off rectifier voltages are decreasing smoothly at its actual voltages 230v. Load on Genset phases is this: Red-13.5 amp AC (Air Con load), Yellow-1.7 amp AC (BTS lights etc.) and Blew-4 amp AC (telecom system load), Genset phase to phase and neutral to phase voltages are also ok. These are 10 sites having same system and same rectifier APC brand at every site 02 genset are working but the problem is same at all these 10 sites. What will be the reason behind???

1 Answers  

how to select battery for 15 KVA UPS with formula

0 Answers  

What is slip in an induction motor?

0 Answers  

i want to apper for apgenco or aptransco or related can any one sugest me where can i get previous papers of thouse exams

0 Answers