Design T&D of city

VIDWAAN

Presented by:

Gaurav Kumar SinghAniket KumarSatendra Dubey

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Problem Statement

Show locations and layouts of power plant(s) (type also), switchyard & local distributing unit, distribution / feeder lines, protection scheme for whole system along with proper ratings for the given city. Give a list of equipments (also give their numbers).

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Given Layout of city

Location of Generation Plant:

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• The Power Plant for the given city has been put up in the area between Industrial Area 1 and Railway Station 2.

Type of Generation Plant:• A SMALL HYDRO Power Plant

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The choice of the type of plant was decided by the factors as under:

• Topography of the area.

• Maximum Power demand of the city (Approx 7.48 MW).

• Cost Consideration.

• Pollution Factor.

• Judicious use of available resources.

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Cost of generation is cheapest highest efficiency and highest project life amongst renewable.

Sector Rs/kWh Efficiency (%) Project Life

Small hydro 1.00–1.50 85-90 60

Wind energy 2.00–2.75 40 20

Solar PV 10.00–12.00 15 20

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• Maximum Demand Calculated is found to be 7.48 MW between 5 a.m. to 6 a.m.

• Plant Capacity Will be 10 MW. • IT consists of 2 Generating Units of 5 MW Capacity for the reliable supply of power.

• Use of Bulb Turbine for Low Heads and Efficiency.

About The Plant

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Layout Of Power Plant

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Bulb Turbine

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Distribution System:

• Distributing Unit is used to supply the power to Industrial Area 1.

• Substation 1 is used to supply power Railway Station 2 & Railway Traction 2.

• Substation 2 is used to supply power to Rural Area.

• Substation 3 is used to supply power to Industrial Area 2, Business complex, Hospital, Railway Station 1 and Railways Traction .

•Substation 4 is used to supply power to School, Residential area, Street Lighting, Railway Station 1 and Railway traction.

•Two Railway Substations are used for the Traction Lines .

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Position Of Sub Stations

•Substation 1 is taken near Power plant

•Substation 2 is taken for the Rural so near by it.

•Sustation 3 is taken near by Hospital since the availability of land.

•Substation 4 is taken near by School and Railway Traction And Station 1.

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Protection Scheme

•Lightning Arrestor•Potential Transformer•Ground Switch•Isolator•Current Transformer•Circuit Breaker•Surge Divertor

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Railway Traction

•Separate Substations For Traction•Subdivisioning Posts Are Used

Transformers Used

•132/11 Stepdown•66/11 Stepdown•66/132 Step up•66/33 Stepdown•11/.4 Stepdown

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Switch Yard

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Single Line Diagram of the Power Distribution System

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Feeders From Power Plant & Distributing Unit

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Sub Station 1

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Sub Station 2

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Sub Station 3

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Sub Station 4

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S No Name Rating Quantity

1 Transformer 66/11 KV 4

2 Transformer 132/11 KV 1

3 Transformer 11/.4 KV 4

4 Transformer 132/66 KV 1

5 Transformer 66/33 KV 1

6 Potential Transformer - 8

7 Current Transformer - 12

8 Circuit Breaker Varying 10

9 Isolator - 61

10 Lightening Arrestor - 16

11 Surge Diverter - 5

12 Unit Auxiliary Transformer 11/6.6 KV 2

13 Station Transformer 66/6.6 KV 1

Number of Equipments Used

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References: •NITK 33/11 kV substation key diagram.

•Power system engineering by Soni,Gupta,Bhatnagar,hakrawarti.

•Power system protection and Switchgear by Badriram.

•Generation of electrical energy by B.R.Gupta.

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THANK YOU

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Queries ???