Resistive element, RC module, and RC voltage divider for a high-voltage electrical substation insulated by a dielectric fluid

Patent metadata

Field	Value
Publication number	US-9906002-B2
Application number	US-201414774169-A
Country	US
Kind code	B2
Filing date	Mar 10, 2014
Priority date	Mar 12, 2013
Publication date	Feb 27, 2018
Grant date	Feb 27, 2018

Abstract

The invention provides a RC module ( 20 ) for a RC voltage divider for an electrical substation insulated by a dielectric fluid. The RC module ( 20 ) comprises first and second plane conductive supports ( 210 a,b ) separated from each other in order to co-operate with the dielectric fluid to form a capacitor, when the module equips an electrical substation. The module further comprises at least one resistive element ( 220 a,b ) electrically connecting together the first and the second conductive supports ( 210 a,b ), the resistive element comprising a printed circuit ( 222 ) defining a resistive electric circuit including a plurality of resistive 2-terminal components mounted in series. The invention also provides a resistive element and a voltage divider.

First claim

The invention claimed is:

1. A RC module for a RC voltage divider of an electrical substation insulated by a dielectric fluid, wherein the RC module comprises first and second plane conductive supports separated from each other in order to co-operate with the dielectric fluid to form a capacitor, the RC module equips the electrical substation, and wherein the RC module further comprises at least two resistive elements electrically connecting together the first and the second plane conductive supports, the at least two resistive elements being mounted in parallel between the first and the second plane conductive supports, each of the at least two resistive elements comprising a corresponding printed circuit defining a resistive electric circuit including a plurality of resistive 2-terminal components mounted in series.

2. The RC module according to claim 1 , wherein the at least two resistive elements comprising four resistive elements mounted in parallel between the first and the second plane conductive supports.

3. The RC module according to claim 2 , wherein the first and the second plane conductive supports are circularly symmetrical about an axis of revolution, the four resistive elements being distributed between the first and the second plane conductive supports with axial symmetry.

4. The RC module according to claim 1 , wherein the at least two resistive elements are crisscrossed.

5. The RC module according to claim 1 , wherein the at least two resistive elements are substantially perpendicular to the first and to the second plane conductive supports.

6. The RC module according to claim 1 , wherein each of the least two resistive elements comprises the corresponding printed circuit defining the resistive electric circuit including the plurality of resistive 2-terminal components mounted in the series.

7. The RC module according to claim 6 , wherein each corresponding printed circuit has first and second faces, the resistive electric circuit going by turn from the first face to the second face in such a manner that the resistive 2-terminal components are distributed over each of the first and the second faces of the corresponding printed circuit.

8. The RC module according to claim 7 , wherein the resistive circuit on each of the first and second faces of each corresponding printed circuit is formed by conductive track portions that are mutually parallel and along which the resistive 2-terminal components are distributed, and that are connected together electrically by the conductive track portions present on the corresponding printed circuit.

9. The RC module according to claim 8 , wherein each corresponding printed circuit comprises a dielectric support adapted to electrically insulate each of the conductive track portions on the first face from each of the conductive track portions on the second face.

10. The RC module according to claim 8 , wherein the resistive 2-terminal components are chosen from among resistors of a surface-mount component type, resistors of a through-hole component type, and conductive track portions made of resistive material deposited on a surface of the corresponding printed circuit.

11. The RC module according to claim 1 , wherein each corresponding printed circuit includes a dielectric support on which a plurality of conductive track portions are disposed that are connected together in such a manner as to form the resistive electric circuit, at least two of the conductive track portions being separated from each other by an opening provided in the dielectric support.

12. A set of RC modules according to claim 2 , wherein the four resistive elements of the RC modules forms sets of resistive elements, two successive of the sets of resistive elements being electrically connected together by one of the first or the second plane conductive supports, links between each of the sets of resistive elements and the first and the second plane conductive supports to which each of the sets of resistive elements is connected being foldable in such a manner as to allow two consecutive ones of the first or the second plane conductive supports to be placed facing each other while also being mutually parallel so as to co-operate with the sets of resistive elements connecting them together to form the set of RC modules.

13. A voltage divider of a high-voltage substation insulated by a dielectric fluid, the voltage divider comprising at least two of RC modules, each of the RC modules according to claim 1 , connected together in series between a ground of the high-voltage substation and a phase of the high-voltage substation.

14. The voltage divider of the high-voltage substation insulated by the dielectric fluid according to claim 13 , wherein the resistive elements and the first and the second plane conductive supports being folded in such a manner that two consecutive ones of the first or the second plane conductive supports are facing each other while also being mutually parallel.

15. A RC module for a RC voltage divider of an electrical substation insulated by a dielectric fluid, wherein the RC module comprises first and second plane conductive supports separated from each other in order to co-operate with the dielectric fluid to form a capacitor, the RC module equips the electrical substation, and wherein the RC module further comprises at least one resistive element electrically connecting together the first and the second plane conductive supports, the at least one resistive element comprising a printed circuit defining a resistive electric circuit including a plurality of resistive 2-terminal components mounted in series, wherein the printed circuit includes a dielectric support on which a plurality of conductive track portions are disposed that are connected together in such a manner as to form the resistive electric circuit, at least two of the conductive track portions being separated from each other by an opening provided in the dielectric support.

16. A voltage divider designed to equip a high-voltage substation insulated by a dielectric fluid, the voltage divider comprising at least two of RC modules, each of the RC modules according to claim 15 , connected together in series between a ground of the substation and a phase of the high-voltage substation.

17. A RC module for a RC voltage divider of an electrical substation insulated by a dielectric fluid, wherein the RC module comprises first and second plane conductive supports separated from each other in order to co-operate with the dielectric fluid to form a capacitor, the RC module equips the electrical substation, and wherein the RC module further comprises at least one resistive element electrically connecting together the first and the second plane conductive supports, the at least one resistive element comprising a printed circuit defining a resistive electric circuit including a plurality of resistive 2-terminal components mounted in series, the printed circuit has first and second faces, the resistive electric circuit going by turn from the first face to the second face in such a manner that the resistive 2-terminal components are distributed over each of the first and the second faces of the printed circuit, and wherein the resistive circuit on each of the first and the second faces of the printed circuit is formed by conductive track portions that are mutually parallel and along which the resistive 2-terminal components are distributed, and that are connected together electrically by the conductive track portions present on the printed circuit.

18. A voltage divider designed to equip a high-volta

Assignees

• Alstom Technology Ltd

Inventors

• Juge Patrice

Classifications

• H05K1/181

  associated with surface mounted components · CPC title

• H01G4/02

  Gas or vapour dielectrics · CPC title

• H01C1/16

  Resistor networks not otherwise provided for · CPC title

• H02B7/01 Primary

  gas-insulated · CPC title

• H02B1/015

  Boards, panels, desks; Parts thereof or accessories therefor · CPC title