Interested to Buy Any Domain ? << Click Here >> for more details...
What is the Polarisation index value ? (pi value)and
simple definition of polarisation index ?
- 15 Answers
- 80584 Views
- Essar, I also Faced
- E-Mail Answers
Answer Posted / shane e.
It is the ratios of of insulation resitance on a DC hi-pot test over 10 minutes. If less than 1 insulation is surely breaking down.
| Is This Answer Correct ? | 0 Yes | 1 No |
Post New Answer View All Answers
derive DC RMS value for half wave rectifier?
If anyone would like to know or practice for FEWA papers contact me on mohamedrashad2@hotmail.com Just completed the supervisor exam in April 2021
What is the need of earthing transformer for delta side of a transformer. (Think of a line section between a star/delta transformer at a grid substation and delta/star transformer at a village. An earthing transformer is there at the delta side of the star/delta transformer at grid substation). As there are no ground reference there will not be fault current if a one phase is grounded. Further L-L phase will be sensed by the primary side of star/delta transformer as a L-G fault. So why an earthing transformer is required at delta side
700KW 6.6KV slip ring induction motor to use VFD to control the speed
What is the maximum number of swithes that can be connected in series up to down stream point in an LV Distribution system?
how to calculate the loss tangent of electrical cables
what sort of general awareness questions are asked in o.n.g.c entrance exam?????????????????
working principle of oil startar
description about dry type transformers
what is meaning of sympathetic tripping with respect to relays and give the values for current carrying capacities for copper and aluminium cables from 16sq mm to 500sq mm
For an induction motor wat is the loading/unloading cycle duration or interms of L/UL ratio/ percentage?
i have install 750 kva distribution transformer at my site and want to do neutral earthing. what calculations should i follow to determine earthing conductor material and size?
what is the star delta connetion and how can do it a three phase motor with control witing with picture
How could I get a certificate of competency as Electrical Supervisor? I have completed By BTech in Electrical this year(2012) for VJTI Mumbai Maharashtra. Is it compulsory to be produced while joining?
how to prepare the technical test
