Method for tapping a high voltage transmission line and substation using the same
OwnerGamal A. Ghaliinventor
Life of this patent
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Abstract
A method of tapping a high voltage transmission line for input into a power distribution substation is disclosed. The method comprises the steps of dividing the transmission line and attaching the conductors to the primaries of at least two transformers via a series connected first disconnect switch, second disconnect switch and circuit breaker. A bus interconnects the first disconnect switch and the second disconnect switch and the bus of the first transformer bay is connected to the bus of the second transformer bay using a circuit breaker. A system for the conversion of tapped high voltage electricity to medium voltage electricity is also disclosed.
Claims15
A method of tapping a high voltage transmission line for input into a power distribution substation, the high voltage transmission line being suspended by a suspension tower, the method comprising the steps of:
- (a) dividing the high voltage transmission line into a first conducting line and a second conducting line by removing a bypass loop to sever the transmission line at the suspension tower such that said first conducting line is terminated at a first side of said suspension tower and said second conducting line is terminated at a second side of said suspension tower, wherein said first conducting line is insulated from said second conducting line;
- (b) providing at least two transformer bays at the substation, each transformer bay having a primary input connected to the primary of a power transformer, wherein said primary input comprises a series connected first disconnect switch, second disconnect switch and circuit breaker, wherein a bus interconnects said first disconnect switch and said second disconnect switch and wherein an output of said circuit breaker is attached to the primary of said power transformer;
- (c) interconnecting the bus of said first transformer bay to the bus of said second transformer bay using a circuit breaker;
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- (d) connecting the first conducting line to the primary input of said first transformer bay using a first high voltage conductor and connecting the second conducting line to the primary input of said second transformer bay using a second high voltage conductor.
A system for the conversion of high voltage electricity on a transmission line to medium voltage electricity comprising:
- (a) an insulator dividing the high voltage transmission line into a first conducting line and a second conducting line;
- (b) a substation comprising two transformer bays, each transformer bay comprising a primary input, switching equipment, and a power transformer, wherein said primary input is connected to the primaries of said power transformer through said switching equipment, wherein said switching equipment comprises a series connected first disconnect switch, second disconnect switch and circuit breaker, wherein a bus interconnects said first disconnect switch and said second disconnect switch and wherein the secondaries of said power transformer output the medium voltage electricity;
- (c) a circuit breaker interconnecting the bus of said first transformer bay to the bus of said second transformer bay;
- (d) first and second high voltage conductors for tapping the high voltage transmission line at one location on the high voltage transmission line, said first high voltage conductor connecting said first conducting line to said primary input of said first transformer bay and said second high voltage conductor connecting said second conducting line to said primary input of said second transformer bay;
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- (e) a suspension tower at said location, said suspension tower suspending the high voltage transmission line and having a bypass loop removed to provide first and second connection points, said first conducting line for joining to said first high voltage conductor at said first connection point on a first side of said tower, and said second conducting line for joining to said second high voltage conductor at said second connection point on a second side of said tower.
Dependencies are inferred from the claim text.