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?
1513Whether 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
1436iam completed my DEEE in eillm university. can i get the c licence in tamilnadu its possible or not
1 2952why 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?
2405What 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,
3138What is genrally the % Impedance of a Dg set? How can we calculate Earthing conductor size for a DG set?
3481What 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,
1946What 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
1957Post New Electrical Engineering Questions
What is the accepted limit to increase the choosen transformer capacity over the load and why ?
what will happen if synchronous machine rotor fed from single phase ac supply
all interview questions with answers of ntpc (2000-2009
If we need 4c× 50mm sq cable but it's not available so we can pull 4c×25mm sq two cables?
how point on wave controller works.
How to resolve if Diesel generator stop while running ?
WHY L-G FAULT IS MORE SEVERE IN TERMS OF RRRV?
what is self capacitance of inductor
What are the basic components of the feedback control system?
Why i receive the GCU fault in my DG Sychronization panel . what all the factors considered for this fault .
why we use sinosidal voltage / current instead of others in system?
what is th basic difference between a d latch time line and a d flip flop time line???
need to make a report. Need to choose a 3phase induction motor. Load conditions motor will operate in : Maximum Load: 30 Kw Speed: 2950 rpm Ambient temp: 20 cent Supply voltage: 440V Frequency: 50Hz need to look for the safety factor when choosing the motor, went through catalouge found a few, but dont know how to choose the safety factor allowing an extra load something above 30 KW to avoid any harm.
what is the criteria for selecting fuse rating in 1phase, 2phase & 3phase welding sets?
how to calculate the change over time for star delta starter for different KW motor?
