By A.D.Thirumoorthy Tamil Nadu Electricity Board India.
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Transcript of By A.D.Thirumoorthy Tamil Nadu Electricity Board India.
![Page 1: By A.D.Thirumoorthy Tamil Nadu Electricity Board India.](https://reader033.fdocuments.us/reader033/viewer/2022050819/56649e0e5503460f94af8482/html5/thumbnails/1.jpg)
byA.D.Thirumoorthy
Tamil Nadu Electricity BoardIndia
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Large untapped potential in India ~ 65,000 – 100,000 MW
Technologies: Synchronous and Asynchronous Generators (with and without gears), New hybrid technologies are being introduced
Turbine unit sizes: 500 kW to 1.65 MW, may go up to 2.0 MW in near future
Leading States: Tamil Nadu – 4200 MW, Maharashtra – 1800 MW, Gujarat 1400 MW
Costs ~ Rs 6-6.5 Cr / MW subject to project size, location, technology
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Leading reactive power raises local voltage Lagging reactive power lowers local voltage Add capacitors to counteract low voltage
conditions
Add reactors to counteract high voltage conditions, Turn off capacitors
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V&I In Wind Mill
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Voltage Harmonics
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Current Harmonics
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This is a typical case of Wind Mills tripping due to Voltage Sag
Voltage Sag caused by tripping of another feeder in the same Sub Station due to earth fault
Rise in load current experienced Suspect of induction Generator aiding the fault
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Sample Dip
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Voltage Dip in WM Feeder
-49.61%
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Current rise in WM Feeder
+268%
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Voltage Dip
-51.4%
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Tripping of WM Due to Sag
Loss of WM Generation
-42.5%
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This a case study of Voltage Swell Voltage swell caused in a Wind Mill
connected feeder Voltage Swell seen when Wind Mill
connected feeder is isolated manually Voltage swell due to discharge of Capacitors
connected for PF correction
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Voltage Rise in WM During Supply Failure
+11.37%
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Voltage Rise in Wind Mill Feeder During Supply Failure
+15.37%
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Bipolar Transient
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B-Phase voltage Drop put
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Voltage SAG
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Voltage Sag
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Multiple Zero Crossing
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Phase Shift Event
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Sample Un-balance of Voltage
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Transient
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Transient due Tripping of Breaker due to inrush current
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Flicker Data in Wind Mill
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Sample Surge in Current
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Swell in Current in Wind Mill
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Active and Reactive Power in Wind Mill
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Voltage Variation in Wind Mill
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Frequency Profile
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WM Generation Vs 110 KV Bus Voltage
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