Answer / amrita

LT Cables are designed for 490V & below voltages.
It has insulation of 1.1KV
HT cable are designed for 490V & more i.e; 6.6KV,11KV etc.
It has insulation of 11KV & above.

Answer / er.arun babu s

HT cable has contain phases only not neutral core 1 or 3 core 1ly insulation was thick but 
 
LT cable has contain additional neutral have core 3.5 and 4 

Answer / c.annarajan

Difference between LT and HT
1. Use Below 450V Above 500
2. Insulation XLPE , XLPE and Double Layer insulated
3. Core(Neutral) Yes No
4. Grading 1100 V Above 110KV
5. O.D. - Lesser than LT
6. Current
Carring Cap. - Less than LT
7. Voltage
Carring Cap. - Greater than LT

Answer / k. parasiramreddy

HT Cable is heavy duty cable and high volts , ht is no neutral,

LT Cable is pvc cable, and most load ,
Medium volt's and full load

Answer / zahed

do earthing conductor comes from transformer side to main
distribution board?
what is the difference between TN-S,TN-C,TN-C-S?

Answer / sunil

HT cable have only 3 core.having semiconductor layer on
core insulation.
LT have 3.5/4 core.

Answer / raja

HT MEANS MORE THAN 500V
LT MEANS LESS THAN 450V
Michael Faraday (1791-1867) an Englishman, made one of the
most significant discoveries in the history of electricity:
Electromagnetic induction. His pioneering work dealt with
how electric currents work. Many inventions would come from
his experiments, but they would come fifty to one hundred
years later.

Answer / sunil kumar

In HT cable used single core but in LT used multicore.
Insulation desine with carrying voltage. HT cable unarmoud
but LT is armoud.

hi frnds what is meant by harmonics & what is meant by third hormonics,where its will occur ?thank u

0 Answers  

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2 Answers  

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I have connected 04nos. earthings to a transformer through 04nos. earthing pits seperately. 02nos. earthings are connected to T/F body, and 02nos. earthings are connected to T/F neutral.T/F capacity is 2000KVA, 11KV/415V. But after completing of 02 years successful operation ,we are facing following problems- 1. CT/PT occured blast one time 2. HT cable box occured blast two times 3. One body earthing strip and one neutral earthing strip of transformer are overlapping at some places. Whenever these two strips are pressed at overlapped points, they made spark. What is the reason of spark? Please explain the reason & rectification of above problems

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0 Answers  

How we calculate the size of ht cable for any transformer

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