how to calculate regulation constants for over head lines? and what are the regulation constant for raccoon conductor at different voltage level and different P.F?
1579Whether should be the oil level in OCTC transfomer? It should be upto winding immersed completely or should be upto tap changer s/w? How it will affect the performance of the transformer. Rating may be 33KVA
1475iam completed my DEEE in eillm university. can i get the c licence in tamilnadu its possible or not
1 3042why 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?
2459What is the effect on in Zone and out zone fault if Phase side CT is Vk/2<30 mA and Neutral side is CT is Vk/4<30 mA for Transformer REF protection
ABB,
3208What is genrally the % Impedance of a Dg set? How can we calculate Earthing conductor size for a DG set?
3538What is effect on in zone and out zone fault if CT chosen for phase side is Vk/2<5mA and Neutral side is Vk/2<15mA on REF protection of Transformer
ABB,
1999What is the basis for selecting Vk/2 or Vk/4 for REF and Differential protection of Transformer and What is the significance of magnetising current
2015Post New Electrical Engineering Questions
Atwhat condition reverse power relay will act?
Define reserve-generating capacity?
What fomula is used to calculate: 1. rated frequency withstand voltage, and 2. rated lightning impulse withstand voltage.
How delta connection in the primary of distribution transformer reduces harmonics?how delta connections reduces harmonics?Please answer me...Hope that question is correct.
how cables go in and come out for distribution from the feeder pillar box?
how does an centrifugal and screw type chiller will work. which chiller efficiency is high and why.
What is the name of the winding from which the supply is taken for load connections?
If we want to change a contactor of faulty one what are the conditions want to fullfil
Why to keep capacitor bank off while generator running.
how is find out kwh step by step
iam working in power plant. In hot places tube lights are glowing at the end portion only. what is the reason for that?
where solid grounding and where grounding through ngr done and why?
Define thermal resistance in the context of power amplifier.
Why frequency changes due to load variation in power system ? i.e why when load increases frequency decreases?
Dear friends I want to design busbar for1600 kva transformer(i.e2100 amps) what are all the factors to be considered before selectinga busbar what are all the standard sizes of busbars what is the formula for finding current of copper and aluminium busbar
