Interested to Buy Any Domain ? << Click Here >> for more details...
Answer Posted / balajideee
All eletrical parts should be earth properly..
| Is This Answer Correct ? | 26 Yes | 1 No |
Post New Answer View All Answers
Write a note on materials used as a fuse element.
What is the working principle of servo motor? And explain it.
what is the formula of starting current of 3phase and 1 phase motor???
generally in LT and MV motors we are using 3.5Coresx16,25,35,50 etc cable for supply.although motors is earthed at two point and having all protection.then why we are using that 1/2 core for earthing the motors.while in HT cable we are using only 3core cable for motor supply.generally lt and mv motors are delta connected and ht motors having star connection.whethere it is having any relation with winding connection( star or delta).all motors i am talking about are dol only.can anybody solve my confusion.thanks...
define hysteresis loss, eddy current loss and windage loss
We have drive feeding an output contactor for a 5000 hp motor @ 5kV application. The motor FLA is 629amps x 1.25% service factor = 786.25 amps The cable that we current have in place between the drive and the output contactor is 350kcmil- MV-105 (parallel cables). Per the NEC table 310.60 (C) (69). This show the cable ampacity is at 615 amps per cable for a rating of 1230 amps. We have derated the cable for the cable tray and the multiple cables application and our calculations show that after the correction factor factor we are at 922amps. 1230 amps x .75% correction factor factor = 922.5 amps. The customer is driving us to then use another safety factor of .25% off of the already derated cable. Can you please provide a longhand calculation for your solution on this application?
a battery is having capacity 100AH and 25% charging .if a load taking 10A & connected 6 hour .what is the final condition of the battery.
what is servo motor & how does it work.
What is the mechanism of WTI
-How do you select cable size for a given load at a given distance from source of supply. How do you find voltage drop.
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?.
What is meant by turbo alternators?
The capacitive reactance of a capacitor of 1/(2(PI)) F at 10^3 H is
why cable i burning without tripping. how can protect led street lights
should %impedance be high or low in a power transformer? if so why?
