WHAT IS B & C CLASS SURGE PROTECTION AND WHAT IS DIFFERENCE
BETWEEN B & c CLASS SP
Answer Posted / vanraj
For surge arrester (lighting arrester) class defines the
capacity of energy can dissipate by SA.
Class in generally not defined by B & C but it defined a
class 2 , Class 3 , Class 4 & class 5 for sub stations.
For 145 kv (110,132 kv ) class 2
For 400 kv ( 400 kv) class 3
For 540 kv (generally not use in india) class 4
For 765 kv Class 5
| Is This Answer Correct ? | 6 Yes | 3 No |
Post New Answer View All Answers
Define Electrical Insulation and examples of Solid,Liquid and Gaseous insulating materials?
why swinburnes test cannot be performed on series machines?explain
what is the difference between 2 way and 4 pole selector switch???
Why in power plant projects we see DOL starting method used for motors upto 160 kW instead of star delta method
Draw the vector diagramme for Asynchronous Induction Generator at noload,half load and fullload.
what material is used in capaciter
what is mathed of check the D.C MOTOR 181 KW (ARMATURE AND FIELD) WHAT IS THE MATHED OF CHECK THE THYRISTOR MODULE (HIGH CURRENT)
I have doubt that the supply HZ (very low or high than rated ) may affect the power factor. is it true. ?
What is an 86-P or an 86-A trip
Dear Brother can u tell the proper size selection of cable & the fault level calculation of braker, busbar etc. pls mail me at azeemk30@gmail.com
WHAT IS LOAD CELL
percetans
No load tap changing transformer working
What is the permissable nutral current of three phase system as per IS standards?
What is q factor?