What is the range of operating voltage in high tension cable?

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BSPHCL JE Electrical 2019 Official Paper: Batch 1 (Held on 30 Jan 2019)
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  1. Above 33 kV
  2. 12 - 20 kV
  3. 21 - 33 kV
  4. 1 - 11 kV

Answer (Detailed Solution Below)

Option 4 : 1 - 11 kV
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The correct answer is option 4): 1 - 11 kV

Concept:

  • The Classification of underground cables on the basis of voltage level is given below

Type of Cable Voltage level (kV)

  • Low tension (L.T.) Cable 0 – 1 kV
  • High tension (H.T.) Cable 1 – 11 kV
  • Super tension (S.T.) Cable 11 – 33 kV
  • Extra high-tension (E.H.T.) Cable 33 – 66 kV
  • Extra super-tension(E.S.T.) Cable 66 kV and above From the given options, the voltage level used in the high-tension cables to transmit power is up to 11,000 V.
  • Hence option 4 is correct
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