Power transmission tower mounted series injection transformer
First Claim
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1. For use in a high voltage power distribution system, apparatus comprising:
- a series injection transformer having a multi-turn primary winding having first and second ends;
the series injection transformer being suspended from a tower of the high voltage power distribution system and not by a high voltage line or high voltage line segment of the high voltage power distribution system suspended by the tower;
an end of first and second high voltage line segments being connected to the suspension tower through first and second strain insulators, respectively; and
first and second jumpers, a first end of each of the first and second jumpers being connected to a respective one of the ends of the first and second high voltage line segments;
the second end of each of the first and second jumpers each being connected to a respective end of the multi-turn primary winding.
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Abstract
The power transmission tower mounted series injection transformer (TMIT) injects impedance and/or voltage on a transmission tower power line. A tension bearing tower uses vertical and horizontal insulators to support and stabilize the TMIT. The TMIT can be much heavier than a transformer device clamped to the high-voltage transmission line. The TMIT is connected in series with the tension bearing tower'"'"'s jumper allowing it to use a multi-turn transformer. By operating at the line voltage potential, the TMIT does not require the large bushings and oil drums used by sub-station injection transformers.
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Citations
22 Claims
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1. For use in a high voltage power distribution system, apparatus comprising:
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a series injection transformer having a multi-turn primary winding having first and second ends; the series injection transformer being suspended from a tower of the high voltage power distribution system and not by a high voltage line or high voltage line segment of the high voltage power distribution system suspended by the tower; an end of first and second high voltage line segments being connected to the suspension tower through first and second strain insulators, respectively; and first and second jumpers, a first end of each of the first and second jumpers being connected to a respective one of the ends of the first and second high voltage line segments; the second end of each of the first and second jumpers each being connected to a respective end of the multi-turn primary winding. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. For use in a high voltage power distribution system, apparatus comprising:
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an active impedance injection module within a housing, the active injection module having a series injection transformer with a multi-turn primary winding having first and second ends; the active impedance injection module being suspended from a tower of the high voltage power distribution system and not by a high voltage line or high voltage line segment of the high voltage power distribution system suspended by the tower; an end of first and second high voltage line segments being connected to the tower through first and second strain insulators, respectively; and first and second jumpers, a first end of each of the first and second jumpers being connected to a respective of one of the ends of the first and second high voltage line segments; the second end of each of the first and second jumpers each being connected to a respective end of the primary winding. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. In a high voltage power distribution system, apparatus comprising:
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a plurality of active impedance injection modules, each active injection module having a series injection transformer with a multi-turn primary winding having first and second ends; each active impedance injection module being suspended from a respective tower of the high voltage power distribution system by a suspension insulator and not by a high voltage line or high voltage line segment of the high voltage power distribution system suspended by the tower; and at each tower having an active impedance injection module; a high voltage line of the high voltage power distribution system being cut into high voltage line segments; an end of the respective first and second high voltage line segments being connected to the respective suspension tower through first and second strain insulators, respectively; and first and second jumpers at each tower having an active impedance injection module, a first end of each of the respective first and second jumpers being connected to a respective of one of the ends of the first and second high voltage line segments; the second end of each of the first and second jumpers being connected to a respective end of the respective primary winding. - View Dependent Claims (18, 19, 20, 21, 22)
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Specification