MCCB 400 Amps 50KA 430Volt AC
What is mean by 50KA
Answer Posted / s.arunkumar
As per the standards for different voltage level there is
different short circuit fault value.
For ex: 11kV is 31.5kA and for 430V is 50kA.
ie., the breaker can withstand the short circuit of 50kA.
| Is This Answer Correct ? | 10 Yes | 11 No |
Post New Answer View All Answers
hai iam arunkumar. i have applied for an section enginner in rrb. i want lat 5 years solved question papers. if u have please sedn it to arun30682@gmail.com
What is Phase to Phase clearance for 800V System Operating Voltage as per IEC61439
Which type of motor is used in trains, what is the rating of supply used explain working principal?
with 3 phase board on a 63 amp rcd is it ok to have 6 electrical showers 2 on each phase and what problems could happen
clarify types of motor operated valves and advantages
This is reqd for a 1MW Solar power plant..We have 2DC outputs from the solar panels Connected to 2INVERTOR panels.. Output from invertor is 3ph,280v,500kva,50hz.These are connected to individual ACB.This has to be stepped up to 11KV ,1250KVA SYSTEM.Now can I use (1) one more ACBTO GIVE A COMBINED OUTPUT OF 1000KVA,280V & STEP UP THE OUTPUT BY USING a single two winding 3 ph transformer 11kv/1250kva. or (2)use the two outputs and connect to one three winding transformer of above rating..Pls suggestwith details.
During regenerative breaking= A rotating magnetic field is reversed B slip is positive C torque is positive D slip is negative
I want formula to calculate current loss with distance in km.I searched many sites but didn't right answer.Plz reply me
what will happens if one phase is missing for 33/11kv power transfomer and why?
Starting current of a 10 HP induction Motor is ______ time’s full load current.
checking procedure of capacitor based motors.used in fans etc?
How is the resonant peak, resonant frequency, and bandwidth determined from nichols chart?
Give details of your interested designation, the post you are interested to serve the company better and explain why you think you can serve the company better in such position if employed?
how do you choose the cable size as per amps rating & the voltage drop for the same.
whether fibre optic cable in high voltage earth conductor is used for protection circuits