Interested to Buy Any Domain ? << Click Here >> for more details...
why do we provide metallic enclosure to bus duct and then ground it?
- 1 Answers
- 4629 Views
- I also Faced
- E-Mail Answers
Answer Posted / aarya
The insulation between the lengths of duct and the insulation between each length and ground serve two purposes. One of these purposes is to prevent the eddy currents induced in a particular duct from circulating between that particular duct and the adjacent ducts and also between that particular duct and the grounded supporting structure for the ducts, thus preventing the undesirable heating which tends to result from such circulating eddy currents. The other of these purposes is to direct faults that occur to the duct to ground via a path extending through a ground return bus.
| Is This Answer Correct ? | 6 Yes | 0 No |
Post New Answer View All Answers
why motor range is available 22kv,30kv,37kv,45kv and so on? why motor range is not available 21kv,24,25,26,27kv and so on?
Please explain me abt PQ diagaram in the power sector.
where was current transformer protection units used and why??
Please define ampere?
Is it advantages of having star-delta vfd than normal star vfd , if yes why?
How to configure the drives in PLC, through Profibus commnication. And to how to address it?
I have 440v power coming to facility,( not being used ) can I buy large generator, (gas) to sell power back to electrical co.
at which voltage level arcing ground is occurs ??????????
What is meant by positive and negative feedback?
The 3 phase Delta connection RB=440V, BY=350V,.......* is Line to Line voltage RY= ? And Formula....?
What are test signals and their significance?
What must be the distance between the Earth pit which are grounded from two different sources. Example: Distance between the earth pit for LV Panel-1 & 2
Draw the line diagram of diffretial relay connected to transformer?
i have gear oil pump with single phase motor.some time its motor starts running in reverse direction rather than forward direction...whats the reason behind this issue. 1- either capacitor is week? 2- or winding is week?
I have a drawing of a wound rotor induction motor for a crane. This crane motor has 5 forward speeds & 5 reverse speed implemented of course with different amount of resistance for each speed setting selected. What has got me scratching around is the fact that 8 of the 10 speed selections switch in uneven (unbalanced) amounts of resistances on each of the 3 connections to the motor's rotor.Can this be possible? I would have assumed this would produce unbalanced rotor currents and therefore vibration in the motor. I would greatly appreciate anyone's comments on this. Many thanks, Confused.
