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Sub - Station

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The document summarizes types of substations based on their service requirements and constructional features. It discusses substations that change voltage levels, perform switching operations, improve power factor, change supply frequency or convert AC to DC power. Substations are also classified as indoor, outdoor, underground or pole-mounted based on their construction. Indoor substations are used for voltages up to 11kV, outdoor for voltages over 66kV, underground are created underground, and pole-mounted have equipment installed overhead on poles.

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Sub-Station Made by:-- Swapnil Patel

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Table of Contents Introduction about sub-station Classification of substation Comparison between indoor and outdoor substation

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Introduction about sub-station The assembly of apparatus used to change some characteristics of electric supply is called a sub-station. • It should be at proper location. • It should provide safe and reliable arrangement. • It should be easily operated and maintained. • It should involve minimum capital cost.

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Classification of substation 1. Service requirement 2. Constructional features

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1. According to Service requirement • It which change the voltage level . (i) Transformer Sub-station • It perform the switching operations of power lines . ( ii) Switching Sub-station • It improves power factor . (iii) Power factor Correction • It Changes the Supply Frequency. (iv) Frequency changer • It Change a.c. power into d.c. power. (v) Converting Sub - Station • It supplies power to Industrial Individual concerns. (vi) Industrial Sub - Station

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2. According to Constructional feature • For Voltages upto 11 kV . (i) Indoor Sub-station • For Voltages beyond 66 kV . ( ii) Outdoor Sub-station • The sub - station is created underground . (iii) Underground Sub-station • This is an outdoor sub - station with equipment installed over-head on H-pole or 4-pole structure . (iv) Pole - mounted Sub-station

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Comparison between indoor and outdoor sub- station

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References • Elements of power systems by V K Mehta. • Background Photo By SWAPNIL PATEL

More Related Content

Sub - Station

  • 2. Table of Contents Introduction about sub-station Classification of substation Comparison between indoor and outdoor substation
  • 3. Introduction about sub-station The assembly of apparatus used to change some characteristics of electric supply is called a sub-station. • It should be at proper location. • It should provide safe and reliable arrangement. • It should be easily operated and maintained. • It should involve minimum capital cost.
  • 4. Classification of substation 1. Service requirement 2. Constructional features
  • 5. 1. According to Service requirement • It which change the voltage level . (i) Transformer Sub-station • It perform the switching operations of power lines . ( ii) Switching Sub-station • It improves power factor . (iii) Power factor Correction • It Changes the Supply Frequency. (iv) Frequency changer • It Change a.c. power into d.c. power. (v) Converting Sub - Station • It supplies power to Industrial Individual concerns. (vi) Industrial Sub - Station
  • 6. 2. According to Constructional feature • For Voltages upto 11 kV . (i) Indoor Sub-station • For Voltages beyond 66 kV . ( ii) Outdoor Sub-station • The sub - station is created underground . (iii) Underground Sub-station • This is an outdoor sub - station with equipment installed over-head on H-pole or 4-pole structure . (iv) Pole - mounted Sub-station
  • 7. Comparison between indoor and outdoor sub- station
  • 8. References • Elements of power systems by V K Mehta. • Background Photo By SWAPNIL PATEL