Wave trap
 

WAVE TRAP : Power plants and substati**s are c**nected by high voltage power transmissi** lines which transmit power typically at 50 or 60 Hz. These lines are also used to carry communicati** and c**trol signals for the operati** of the grid (local equipment status, readings, alarms and switching signals). These signals which are of much lower voltage than the power, use high frequency carriers and wave trap filters are employed to separate the power and communicati** signals at every receiving end.



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Capacitor and Harmonic Filter
 

Capacitor and Harm**ic Filter Banks for Medium Voltage Utility


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World's l**gest wind turbine blade

The latest turbine generati** from Siemens has a 6 MW capacity with 75 m l**g blades, for a rotor diameter of 154 m. The rotor has a swept area of 18,600 square meters – equivalent to almost two and a half soccer fields. (Picture © Siemens.)





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Arrangements of LV Utility Distributi** Networks






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What is this????? & Where this is used????




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6ø Transmissi** Line For Electric Guitar Strings





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SEPAM relays in medium voltage switchgear





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Low Pressure Turbine






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Haefely Trench Coupling Capacitor Voltage Transformers:

STOCK # QTY KV BIL RATING TYPE MANUFACTURER
64-1000-T 3 345 1,550 TEVF 345 Haefely Trench AG
3 - 345KV Haefely Trench Coupling Capacitor Voltage Transformers

*. TT&A Inventory Number: 64-1000

*. Quantity: 3

*. Manufacturer: Haefely Trench AG

*. Year of Manufacture: 1996

*. Type No.: TEVF 345

*. System: 60 Hertz

*. BIL: 1,550 KV

*. For Nominal: 345 KV

*. Maximum Rated Voltage: 209 KV

*. Perf. Reference Voltage: 190,200 Volts

*. Capacitance Total Nominal: 2,150 pF, C1: 2,284 pF, C2: 87,411 pF

*. Thermal Burden Rating: 1,000 VA @ UPF

*. Low Voltage Terminals:

*. Y1-Y3, X1-X3, 115 Sec. Volts, 1,732:1 Marked Ratio
0.6WXYZ Accuracy (ANSI), 200 VA(Nom.)

*. Y2-Y3, X2-X3, 66+ Sec. Volts, 3,000:1 Marked Ratio
0.6WXYZ Accuracy (ANSI), 200 VA(Nom.)

*. Total Weight: 1,000 lbs


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