IN 500 KVA TRANSFORMER 11KV/415 VOLTS HOW TO CALCULATE THE HT
CABLE SIZE AND LT CABLE SIZE FROM TRANSFORMER TO LT PANNEL.
AND HOW MANY MAINSWITCHES OR MCBS WITH RATING ARE TO BE
PROVIDED
Answers were Sorted based on User's Feedback
Answer / sudhakar g
First you have to caluclate the load of the T/F i.e
KW=KVA*p.f
KW=500*0.8=400KW
I=kw*1000/1.732*415v*0.8
I=696.74 A
Based on these we can choose the Cable size ....
suppose the LT AL cable of 3.5c x 400 sqmm will give 530 A
of polycab....if we go for two runs of 400sq.mm means it is
good and the breaker size we will go for 800A ACB bresker
means it is good....
I am taking Electrical desining classes in Bangalore...It
will be usefull for designing as well as site engineers
those who are intrested to go for Electrical
Engineers....we give you indepth knowledge of Load calu,
Cable sizing, Lighting cal, panels, breaker
selection,Autocad drawing....if any body intrested means
pls call to +91-7760362623 or sudhakar28485@gmail.com
Is This Answer Correct ? | 17 Yes | 13 No |
what is idmt relay
i have dry type transformers can you help me that how many tests i can do to know the performence of transformer and also please tell me about the BDV test and Insulation resistance test in oil cooled transformers
What is the min and max ohmic value for earthing?
on what priciple transformer works on?
CT Ratio of a energy meter connection is Red Phase : 100/5A, yello Phase : 50/5A & Blue phase : 100/5 A what is the overall Multiplication factor
Load 380kva eb 415v,load amps 350.Same load dg 415v,load amps 420 what reason ?
1 Answers AVT Natural Products,
Why rotating machines are not allowed to run near critical speed region?
what happens if sf6ckt breaker gas pressure is high or low about the actual rating of gas pressure(5kg/cm2)
what is slip ring induction motor? How it works?
What is the difference between Contactor and Circuit breaker ?
how to difference between the HT< cables
how to diffrentiate between ac & dc motors from a distance