what is purpose of using reactor in substations.
Answer Posted / jnanesh
Reactor is nothing but having a wound coil inside it having
high impedence.Suppose there is an short circuit in
transmission line it limits the short circuit current to
safer value which prevents the connected equipment i.e
breaker or transformer.
| Is This Answer Correct ? | 214 Yes | 29 No |
Post New Answer View All Answers
WHAT IS THE WINDING PROCEDURE OF ELECTRICAL MOTOR
how to do the ductor test?
What is touch potential and step potential?
How DC earth leakage currents can be reduced ?
How much current will a 5 HP delta connected motor at no load will take?Is tat need a starter
Efficient electrical earthing in hard rock area
What is the difference between multimeter
mccb service sittings be done?
sir my exam is on 19/6/2013 under electrical branch pls send me sample aptitude questions as well as sample technical questions for jindal steel and power company
What is phenomenon of electromagnetic induction and how it works?
State nyquist stability criterion.
Stator of 3-phase IM has 3 slots per pole per phase. If supply frequency is 50 Hz, calculate the speed of rotating stator flux A 1000 rpm B 500 rpm C 1500 rpm D 1440 rpm
What should be the Sandwitch type Al. bus bar capacity for 2 M.W.Gen. set, having continuous full load current- 3463 Amps,ambient temp.- 50 Deg. C., Required temp. raise-20 deg.C., it will run 24 hrs, 365 days on full load, required highly reliable.
7- What is the Dissipation Factor and the difference between it and Insulation Resistance Test? 8- What is the task (function) of DC and AC reactors in power plant? 9- What is the task (function) of (open delta with earthed) in some types in transformers? 10- What is the base of the selection of the vector group in transformers? 11- What is the zig-zag transformer and its function by drawing in large detail? 12- What is the polarity ? 13- Why we make short between phase(R) in high side and phase (r) in low side in vector group test? Where High Side ( R ,S and T ) and Low Side ( r ,s and t ). 14- What are the time on delay and time off delay? 15- What is the vector group? 15- What is the task (function) of different types of vector group such as Dyn11 , Dd0 , YNd1,……..,?
what about GD square and its important for motor design?