Answer Posted / ankur
The supply neutral point is eathed by a solid link by the
electic supply company.Hence neutral voltage w.r.t earth is
abut 2 to 3 volts. When the neutral link or neutral wire of
supply company breaks, the neutral point starts folating.
depending upon unbalance of the load on three phases, the
voltage on each phase fluctuates from as high as 350-400V to
as low as 50-100V. As a result of tis voltage apears
fluctuating & lights flicker.It normally results in damage
of power supply in various appliances like T.V.& also
damages motors in fans, mixers, fridge etc. of many
consumers in a building.
Is This Answer Correct ? | 8 Yes | 0 No |
Post New Answer View All Answers
1) What are your personal strength? 2) What are your personal areas of improvement? 3) What are your expectations from from a particular job? 4) what are your carrier objectives?
what questions are asked in the interview for the post of an electrical maintenance engineer in FMCG companies?
What is the maximum No. of out going mccbs permitted from an LV distribution paqnel? What is the ampere relation between incomer and out going switch gears/mccbs?
How may I get the maximum current capacity for a particullar size Alluminum or Copper cable if there is compulsion to use?
what is the use of the circle diagram
What are the different types of dams?
What is the working mechanism of OLTC in Power Transformers????
A system absorbs 100 k J of heat and the increase in its internal energy is 100 kJ; the work done is
what happens when series resonance occurs?
What are Contactors? How they works and what its highest rating?
what is the difference between fault current ant short circuit current?
what is the meaning of 5% droop or 7% droop in AVR?
how to select automotive wire by mathematical equation with given current, vlotage and resistance
What is the exact minimum vale of voltage between an earth and netural which can damage or can do malfunction of the electronic equipments ? If this is mentioned in any book, pl.give reference.
i am going to attaned the engineer (disign)iterview at HAL please give me duid line