Interested to Buy Any Domain ? << Click Here >> for more details...
why VCB are not used in 132KV system(above 33KV system)
- 6 Answers
- 16426 Views
- Al Ahleia, I also Faced
- E-Mail Answers
Answer Posted / karunakar
Ionisation at higher voltages causes arcing between breaker
contacts hence deteoriation of contactors. This raises
another methods for arc quenching.. so for medium voltages
currents upto 3000A VCB's have longer life and better
operability.
| Is This Answer Correct ? | 7 Yes | 2 No |
Post New Answer View All Answers
What are books to be referred for KPTCL exam?
we have a 2.5hp Starite electric motor water pump,the elec motor burned out,we need to replace starting capacitor(old capacitor specs erased),what microfarad rating capacitor do we need? 110-125V
How a capacitor discharge weld power supply works? what is the use of a pulse transformer?
How does a digital electronic meter work??????
Define sensitivity?
y we use neutral,all r told its used to for closed path..k its a just used to closed path,in a transmission line y we put same conductor used n both phase and neutral..if we use less than phase conductor in neutral mean we ll reduce cost its right r wrong..if we use mean any problem occur in transmission line..
What are the applications of different multistage amplifiers?Plz also write advantages of these amplifiers? Thaaaaaaaaanx
write down the formula of cable size in RM if current is 50Amp.
apti mainly on logical reasoning, verbal and non-verbal ability (70 percent) and remaining technical. I was in ee but technical had mech ques like on turbines and welding.
diff. between tension mode & speed mode
Can we use both Electrical & mechanical interlock between tow breakers? if yes how, please explain
Can u explain : what is supply for train (whether a,c or d.c ).I know that supply is 25000v a.c .But there is rumour that supply is D.C. And also explain how lights and fans inside the trains are working ,and what type of motors are used in trains whether D.C motors or induction motors .If d.c motor, how it gets supply.If traction motors are used then what are traction motors and its functions and how it differs from other motors and also explain about locomotive . y d.c series motor in train.train wheels r driven by D.C shunt motor ,at what voltage,and at what speed. please reply..............
how to calculate maximum current
temp of cast resin 1500kva tx formerwent up to 138.c but came down very fast to about 100.c within 20 mins when load was reduced from 70% to 60%
does buccholz in a transformer use batteries
