Interested to Buy Any Domain ? << Click Here >> for more details...
How to calculate HV Cable Sizing & what are the factors to
be considered for selection?.
- 2 Answers
- 29040 Views
- I also Faced
- E-Mail Answers
Answer Posted / ashish tiwari
The HV cbale size shall be base on the fault level on HV
side. Like 18.4KA fault current for 11 KV supply & 21.34 KA
fault current for 33 KV supply. We can calculate the HV
cable
BY USING FORMULA ISH = K x A/( sq. root of T)
Where,
ISH :SHORT CIRCUIT CURRENT IN KA (r.m.s.)
T :DURATION OF SHORT CIRCUIT CURRENT IN SECONDS
A :AREA OF ALUMINIUM CONDUCTOR IN MM2
K :IS A CONSTANT = 0.094 for aluminium
ISH x Sq.rootT 18.4 x Sq. root 1
A = ------------ = ------------
K 0.094
= 195.7 sq.mm
HENCE 3 C x 240 SQ.MM XLPE (AL) CABLE IS REQUIRED FOR
INCOMING SIDE AS WELL AS OUTGOING SIDE OF 11 KV SUPPLY.
| Is This Answer Correct ? | 32 Yes | 19 No |
Post New Answer View All Answers
I want to put this query to SENIOR & EXPERIENCED ELECTRICAL ENGINEERS. 1)I want to know about the control circuit diagrams for control panels. I found it difficult to understand. Is there ant booklet through which we can learn the circuit diagrams? 2)I want to learn about conduiting, laying cables, preparing cable schedules and various techniques which is the part of building infrastucture(construction field). I don't have any experience in this area. I have experience in control panels only. that's why i am not getting any opening in building infrastucture (construction field).Can I get the job in this field as Trainee Engineer? How to enter this field? I need job in PUNE
either water sensor or flow meter,how we observe the water level, f any other equipment are in market ?
what is the carona effects meaning in HT line transmmission system
Should power factor be low or high?
If any cable burnt how can we identify it burnt by high current of high voltage?
how hazordious area is classified at an oil & gas plant and categorise suitable class of electric equipment in that area like induction motors, LCS, Lighting Fixtures Fluerescent/Flood lights Mercury& sodium lights, J.Bs, Power Cables etc
What is kirchoff ’s current law (kcl)?
what will happen if the prime mover on the field excitation of the on-coming generator fails?Explain.
Dear all, I want to use Induction motor to open and close a 1 ton door. How much power do I need. Thanks
how can service sitting be setted for MCCB?Example for sittings IR (CURRENT RATING),IS(CURRENT STARTING) I O (current operating)?
what is meant by moulded case circuit breaker ?
how do you test tachos and servos
high voltage transformer input voltage,current and amps rating..distributed transformer input voltage,current and amps rating...
I am experienced with house and industrial wiring but I don't have any licence how can I apply an licence and which type of licence i can get i didn't complete deee just only experience
Can anybody tell abt concrete encased earthing or grounding?
