US20210384713A1 - Pressure Relief Mechanisms for Gas Insulated Switchgear (GIS) Housings and Related GIS Housings - Google Patents
Pressure Relief Mechanisms for Gas Insulated Switchgear (GIS) Housings and Related GIS Housings Download PDFInfo
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- US20210384713A1 US20210384713A1 US17/175,825 US202117175825A US2021384713A1 US 20210384713 A1 US20210384713 A1 US 20210384713A1 US 202117175825 A US202117175825 A US 202117175825A US 2021384713 A1 US2021384713 A1 US 2021384713A1
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- housing
- pressure relief
- relief mechanism
- gis
- thickness
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- 230000007246 mechanism Effects 0.000 title claims abstract description 72
- 238000005266 casting Methods 0.000 claims description 8
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 8
- 238000010586 diagram Methods 0.000 description 11
- 239000004020 conductor Substances 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910018503 SF6 Inorganic materials 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000010200 validation analysis Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 1
- 229960000909 sulfur hexafluoride Drugs 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/025—Safety arrangements, e.g. in case of excessive pressure or fire due to electrical defect
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/035—Gas-insulated switchgear
- H02B13/045—Details of casing, e.g. gas tightness
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/53—Cases; Reservoirs, tanks, piping or valves, for arc-extinguishing fluid; Accessories therefor, e.g. safety arrangements, pressure relief devices
- H01H33/56—Gas reservoirs
- H01H2033/568—Gas reservoirs with overpressure release, e.g. rupture membranes
Definitions
- the inventive concept relates generally to power devices and, more particularly, to gas insulated switchgear (GIS).
- GIS gas insulated switchgear
- switchgear In an electric power system, switchgear is the combination of, for example, electrical disconnect switches, fuses or circuit breakers used to control, protect and isolate electrical equipment. Switchgear can be used both to de-energize equipment to allow work to be done and to clear faults downstream. There are different types of switchgear.
- switchgear may be a simple open-air isolator switch or it may be insulated by some other substance.
- An effective, although more costly, form of switchgear is the gas-insulated switchgear (GIS), where the conductors and contacts are insulated by pressurized gas, for example, sulfur hexafluoride gas (SF 6 ).
- GIS gas-insulated switchgear
- SF 6 sulfur hexafluoride gas
- Other common types of switchgear are oil or vacuum insulated switchgear. The combination of equipment within the switchgear enclosure allows them to interrupt fault currents of thousands of amps.
- Gas-insulated switchgear generally handles medium to high voltages, for example, from 1 kV to 52 kV for medium-voltage classifications, and from 52 kV to 1200 kV for high voltage classifications.
- Gas-insulated switchgear is a compact metal encapsulated switchgear consisting of components such as circuit-breakers and disconnectors, which can be safely operated in confined spaces.
- GIS Like all switchgear, GIS typically includes a mechanism for relieving overpressure generated by arcing faults.
- Conventional methods for relieving overpressure include, for example, bolt-on burst discs and rupture plates.
- FIG. 1A is a diagram illustrating a housing including pressure relief mechanism in accordance with some embodiments of the present inventive concept.
- FIG. 1B is a diagram illustrating an enlarged diagram of the pressure relief mechanism of the housing in FIG. 1A in accordance with some embodiments of the present inventive concept.
- FIG. 2A is a diagram illustrating a housing including pressure relief mechanism in accordance with some embodiments of the present inventive concept.
- FIG. 2B is a diagram illustrating an enlarged diagram of the pressure relief mechanism of the housing in FIG. 2A in accordance with some embodiments of the present inventive concept.
- FIG. 3A is a diagram of a side view of a gas insulated switchgear (GIS) panel in accordance to some embodiments of the present inventive concept.
- GIS gas insulated switchgear
- FIGS. 3B and 3C are diagrams of housings including pressure relief mechanisms in accordance with various embodiments of the present inventive concept.
- Some embodiments of the present inventive concept provide a housing for gas in a gas insulated switchgear (GIS) system; the housing includes a pressure relief mechanism incorporated into the housing.
- the pressure relief mechanism includes a portion of the housing having a first thickness, different from a second thickness of a remaining portion of the housing, the first thickness being less than the second thickness.
- the pressure relief mechanism is configured to rupture at predetermined overpressure conditions to vent bi-products of an arc fault in the GIS system.
- the pressure relief mechanism may include a groove having the first thickness that defines an area of the housing.
- the area of the housing defined by the groove may be configured to fail responsive to the predetermined overpressure conditions.
- the pressure relief mechanism may include a defined area having the first thickness.
- the defined area may be configured to fail responsive to the predetermined overpressure conditions.
- the housing may include a cast metal housing.
- the pressure relief mechanism may be integrated with housing such that the pressure relief mechanism is not installed onto or into the housing.
- the pressure relief mechanism may be integrated directly into walls of the housing by incorporating a geometry of the pressure relief mechanism into a casting itself.
- the pressure relief mechanism may be present on one of an interior and an exterior of the housing.
- the pressure relief mechanism includes a portion of the housing having a first thickness, different from a second thickness of a remaining portion of the housing, the first thickness being less than the second thickness and is configured to rupture at predetermined overpressure conditions to vent bi-products of an arc fault in the GIS system.
- gas insulated switchgear comprising a gas filled housing including a pressure relief mechanism incorporated into the housing.
- the pressure relief mechanism includes a portion of the housing having a first thickness, different from a second thickness of a remaining portion of the housing, the first thickness being less than the second thickness.
- the pressure relief mechanism is configured to rupture at predetermined overpressure conditions to vent bi-products of an arc fault in a GIS system.
- a gas-filled switchgear housing 100 of a gas insulated switchgear typically includes, for example, features such as gas-tight seals and fittings 110 , bus support fastening locations 120 , structural ribbing, and sealed mechanism penetration points 130 .
- the housing 100 may be a cast metal housing 100 made of, for example, aluminum, and the bus support 120 may be integrated within the housing 100 . It will be understood that more features may be present on the housing 100 without departing from the scope of the present inventive concept and that the figures provided herein are provided for example only. For example, although embodiments of the present inventive concept are discussed with respect to cast metal housings, however, other suitable materials and types of housings may be used without departing from the scope of the present inventive concept.
- the housing 100 includes a pressure relief mechanism 140 .
- the pressure relief mechanism 140 has a rectangular shape and is configured to rupture under certain overpressure conditions.
- GIS systems may experience an arc fault or a high power discharge of electricity between two or more conductors, or between one or more conductors and grounded (earthed) components.
- One of the main effects of internal arcs is the dynamic pressure stress on mechanical parts of the switchgear.
- an overpressure relief system is typically present in the switchgear.
- the pressure relief mechanism 140 in accordance with embodiments discussed herein provide an overpressure relief mechanism.
- the rectangular mechanism 140 illustrated in FIG. 1A may be configured to have thinner walls than the remaining portions of the housing 100 and the perimeter of the surface area of the rectangle may be configured to give way, fail or blow out under overpressure conditions.
- the perimeter of the rectangular mechanism may form a groove having a thinner wall than the remaining portion of the housing.
- FIG. 1B illustrates an enlarged diagram 160 of the groove portion of the perimeter of the rectangular mechanism 140 .
- the groove may have a first thickness X and the remaining portion of the housing may have a second thickness Y, which is larger than and different than the first thickness X.
- the first thickness X may be selected to blow out at a particular overpressure condition.
- the remaining portions of the housing 100 may have a typical second thickness Y.
- the pressure relief mechanism in accordance with embodiments discussed herein may be designed not to interfere with the function of these existing common features.
- the groove may be provided on the interior or the exterior of the housing 100 without departing from the present inventive concept.
- the integrated pressure relief mechanism 140 illustrated in FIG. 1A includes a thin-walled fracture groove 145 molded or machined into the casting wall to achieve pressure relief under overpressure conditions.
- the fracture groove 145 may run along the perimeter of the fracture mechanism 140 and is configured to blow out under overpressure conditions.
- additional fracture grooves 147 could also span the cross-section of the blow out area.
- the additional fracture grooves 147 are show as an “X” shape, embodiments of the present inventive concept are not limited thereto.
- a second rectangular groove may be provided inside the walls of the first rectangular groove 145 .
- the thickness X of the fracture groove 145 / 147 in relation to the typical wall thickness Y may be determined through materials stress analysis and preliminary validation testing to yield at a specified overpressure value.
- FIGS. 2A and 2B embodiments of the gas filled switchgear housing 100 ′ in accordance with embodiments of the present inventive concept will be discussed.
- Like reference numerals refer to like elements throughout the specification. Accordingly, details of like elements may not be repeated in the interest of brevity.
- Embodiments of the present inventive concept illustrated in FIGS. 2A and 2B are similar to those discussed above with respect to FIGS. 1A and 1B , however, the pressure relief mechanism 170 including a thin-walled rupture area 175 molded into the casting wall to provide pressure relief in overpressure conditions is not rectangular, but oval or circular and does not consist of a groove as discussed above with respect to FIG. 1A .
- the rupture area 175 in FIG. 2A is shown as circular, embodiments of the present inventive concept are not limited this configuration.
- the rupture area 175 may have any shape without departing from embodiments of the present inventive concept.
- FIG. 2B illustrates an enlarged diagram 180 of the rupture area 170 of the pressure relief mechanism 170 .
- a thickness of the rupture area X would be smaller than a thickness of the remaining housing Y.
- the thickness of the rupture area X in relation to the typical wall thickness Y can be determined through materials stress analysis and preliminary validation testing to yield at a specified overpressure value.
- the rupture area 175 may be provided on the interior or exterior of the housing 100 ′ without departing from the scope of the present inventive concept.
- FIG. 3A is a diagram of a side view of an example of a three phase GIS panel 390 .
- the GIS panel 390 is provided in a housing 395 , for example, a cast aluminum housing.
- three isolated phases A, B and C are provided in the housing 395 .
- gas filled switchgear housings 396 and 397 may be provided in the upper housing and lower housing, respectively.
- the housings 396 and 397 may both include a pressure relief mechanism 140 , 170 in accordance with some embodiments of the present inventive concept.
- the gas filled housings 396 and 397 are illustrated as having a rectangular or box shape in contrast to embodiments illustrated in FIGS. 1A and 2A , however, it will be understood that gas filled housing may have any shape consistent with details discussed herein without departing from the scope of the present inventive concept.
- arc pressure relief mechanisms into housings, for example, cast metal housings, utilized in GIS products.
- These integrated pressure relief mechanisms may function in a similar manner to conventional mechanisms, such as bolt-on burst disc or rupture plate components, but may do away with a need for additional parts, labor and costs associated with these conventional methods.
Abstract
Description
- This application is a continuation of U.S. patent application Ser. No. 15/938,488, filed Mar. 28, 2018, the content of which is hereby incorporated herein by reference in its entirety.
- The inventive concept relates generally to power devices and, more particularly, to gas insulated switchgear (GIS).
- In an electric power system, switchgear is the combination of, for example, electrical disconnect switches, fuses or circuit breakers used to control, protect and isolate electrical equipment. Switchgear can be used both to de-energize equipment to allow work to be done and to clear faults downstream. There are different types of switchgear.
- In particular, switchgear may be a simple open-air isolator switch or it may be insulated by some other substance. An effective, although more costly, form of switchgear is the gas-insulated switchgear (GIS), where the conductors and contacts are insulated by pressurized gas, for example, sulfur hexafluoride gas (SF6). Other common types of switchgear are oil or vacuum insulated switchgear. The combination of equipment within the switchgear enclosure allows them to interrupt fault currents of thousands of amps.
- Gas-insulated switchgear (GIS) generally handles medium to high voltages, for example, from 1 kV to 52 kV for medium-voltage classifications, and from 52 kV to 1200 kV for high voltage classifications. Gas-insulated switchgear (GIS) is a compact metal encapsulated switchgear consisting of components such as circuit-breakers and disconnectors, which can be safely operated in confined spaces.
- Like all switchgear, GIS typically includes a mechanism for relieving overpressure generated by arcing faults. Conventional methods for relieving overpressure include, for example, bolt-on burst discs and rupture plates.
-
FIG. 1A is a diagram illustrating a housing including pressure relief mechanism in accordance with some embodiments of the present inventive concept. -
FIG. 1B is a diagram illustrating an enlarged diagram of the pressure relief mechanism of the housing inFIG. 1A in accordance with some embodiments of the present inventive concept. -
FIG. 2A is a diagram illustrating a housing including pressure relief mechanism in accordance with some embodiments of the present inventive concept. -
FIG. 2B is a diagram illustrating an enlarged diagram of the pressure relief mechanism of the housing inFIG. 2A in accordance with some embodiments of the present inventive concept. -
FIG. 3A is a diagram of a side view of a gas insulated switchgear (GIS) panel in accordance to some embodiments of the present inventive concept. -
FIGS. 3B and 3C are diagrams of housings including pressure relief mechanisms in accordance with various embodiments of the present inventive concept. - Some embodiments of the present inventive concept provide a housing for gas in a gas insulated switchgear (GIS) system; the housing includes a pressure relief mechanism incorporated into the housing. The pressure relief mechanism includes a portion of the housing having a first thickness, different from a second thickness of a remaining portion of the housing, the first thickness being less than the second thickness. The pressure relief mechanism is configured to rupture at predetermined overpressure conditions to vent bi-products of an arc fault in the GIS system.
- In further embodiments, the pressure relief mechanism may include a groove having the first thickness that defines an area of the housing. The area of the housing defined by the groove may be configured to fail responsive to the predetermined overpressure conditions.
- In still further embodiments, the pressure relief mechanism may include a defined area having the first thickness. The defined area may be configured to fail responsive to the predetermined overpressure conditions.
- In some embodiments, the housing may include a cast metal housing.
- In further embodiments, the pressure relief mechanism may be integrated with housing such that the pressure relief mechanism is not installed onto or into the housing.
- In still further embodiments, the pressure relief mechanism may be integrated directly into walls of the housing by incorporating a geometry of the pressure relief mechanism into a casting itself.
- In some embodiments, the pressure relief mechanism may be present on one of an interior and an exterior of the housing.
- Further embodiments of the present inventive concept provide pressure relief mechanisms for a housing of a gas-filled switchgear in a gas insulated switchgear (GIS) system. The pressure relief mechanism includes a portion of the housing having a first thickness, different from a second thickness of a remaining portion of the housing, the first thickness being less than the second thickness and is configured to rupture at predetermined overpressure conditions to vent bi-products of an arc fault in the GIS system.
- Still further embodiments of the present inventive concept provided gas insulated switchgear (GIS) comprising a gas filled housing including a pressure relief mechanism incorporated into the housing. The pressure relief mechanism includes a portion of the housing having a first thickness, different from a second thickness of a remaining portion of the housing, the first thickness being less than the second thickness. The pressure relief mechanism is configured to rupture at predetermined overpressure conditions to vent bi-products of an arc fault in a GIS system.
- Specific exemplary embodiments of the inventive concept now will be described with reference to the accompanying drawings. This inventive concept may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the inventive concept to those skilled in the art. In the drawings, like numbers refer to like elements. It will be understood that when an element is referred to as being “connected” or “coupled” to another element, it can be directly connected or coupled to the other element or intervening elements may be present. As used herein the term “and/or” includes any and all combinations of one or more of the associated listed items.
- The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the inventive concept. As used herein, the singular forms “a”, “an” and “the” are intended to include the plural forms as well, unless expressly stated otherwise. It will be further understood that the terms “includes,” “comprises,” “including” and/or “comprising,” when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
- Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this inventive concept belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the specification and the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
- As discussed above, conventional methods for relieving overpressure generated by arcing faults in gas-filled switchgear housings may involve, for example, the use of bolt-on burst discs or rupture plates. These types of pressure relief devices generally require additional sealing and may create areas for possible gas leakage from the housing. Bolt-on pressure relief components can also be expensive and can add significant cost to a housing assembly. Aside from component cost, additional labor costs are also associated with the installation of these bolt-on pressure relief devices. Accordingly, some embodiments of the present inventive concept provide pressure relief mechanisms integrated directly into the housing walls by incorporating the geometry into the casting itself as will be discussed further below with respect to
FIGS. 1A through 3C . - Referring first to
FIG. 1A , a gas-filled switchgear housing in accordance with some embodiments of the present inventive concept will be discussed. As illustrated inFIG. 1A , a gas-filledswitchgear housing 100 of a gas insulated switchgear (GIS) typically includes, for example, features such as gas-tight seals andfittings 110, bussupport fastening locations 120, structural ribbing, and sealed mechanism penetration points 130. In some embodiments, thehousing 100 may be acast metal housing 100 made of, for example, aluminum, and thebus support 120 may be integrated within thehousing 100. It will be understood that more features may be present on thehousing 100 without departing from the scope of the present inventive concept and that the figures provided herein are provided for example only. For example, although embodiments of the present inventive concept are discussed with respect to cast metal housings, however, other suitable materials and types of housings may be used without departing from the scope of the present inventive concept. - Referring again to
FIG. 1A , in accordance with embodiments discussed herein, thehousing 100 includes apressure relief mechanism 140. In embodiments illustrated inFIG. 1A , thepressure relief mechanism 140 has a rectangular shape and is configured to rupture under certain overpressure conditions. - In particular, GIS systems may experience an arc fault or a high power discharge of electricity between two or more conductors, or between one or more conductors and grounded (earthed) components. One of the main effects of internal arcs is the dynamic pressure stress on mechanical parts of the switchgear. To avoid damage to critical structural components of the switchgear enclosure, an overpressure relief system is typically present in the switchgear. The
pressure relief mechanism 140 in accordance with embodiments discussed herein provide an overpressure relief mechanism. For example, therectangular mechanism 140 illustrated inFIG. 1A may be configured to have thinner walls than the remaining portions of thehousing 100 and the perimeter of the surface area of the rectangle may be configured to give way, fail or blow out under overpressure conditions. In other words, the perimeter of the rectangular mechanism may form a groove having a thinner wall than the remaining portion of the housing.FIG. 1B illustrates an enlarged diagram 160 of the groove portion of the perimeter of therectangular mechanism 140. As illustrated therein, the groove may have a first thickness X and the remaining portion of the housing may have a second thickness Y, which is larger than and different than the first thickness X. The first thickness X may be selected to blow out at a particular overpressure condition. The remaining portions of thehousing 100 may have a typical second thickness Y. The pressure relief mechanism in accordance with embodiments discussed herein may be designed not to interfere with the function of these existing common features. Furthermore, the groove may be provided on the interior or the exterior of thehousing 100 without departing from the present inventive concept. - The integrated
pressure relief mechanism 140 illustrated inFIG. 1A includes a thin-walled fracture groove 145 molded or machined into the casting wall to achieve pressure relief under overpressure conditions. In some embodiments, thefracture groove 145 may run along the perimeter of thefracture mechanism 140 and is configured to blow out under overpressure conditions. As further illustrated inFIG. 1A ,additional fracture grooves 147 could also span the cross-section of the blow out area. Although theadditional fracture grooves 147 are show as an “X” shape, embodiments of the present inventive concept are not limited thereto. For example, in some embodiments a second rectangular groove may be provided inside the walls of the firstrectangular groove 145. The thickness X of thefracture groove 145/147 in relation to the typical wall thickness Y may be determined through materials stress analysis and preliminary validation testing to yield at a specified overpressure value. - Referring now to
FIGS. 2A and 2B , embodiments of the gas filledswitchgear housing 100′ in accordance with embodiments of the present inventive concept will be discussed. Like reference numerals refer to like elements throughout the specification. Accordingly, details of like elements may not be repeated in the interest of brevity. Embodiments of the present inventive concept illustrated inFIGS. 2A and 2B are similar to those discussed above with respect toFIGS. 1A and 1B , however, thepressure relief mechanism 170 including a thin-walled rupture area 175 molded into the casting wall to provide pressure relief in overpressure conditions is not rectangular, but oval or circular and does not consist of a groove as discussed above with respect toFIG. 1A . Although therupture area 175 inFIG. 2A is shown as circular, embodiments of the present inventive concept are not limited this configuration. Therupture area 175 may have any shape without departing from embodiments of the present inventive concept. - In particular, the
entire rupture area 170 would have a reduced uniform thickness and would be configured to blow out under overpressure conditions. In some embodiments, the rupture area could conform to the profile of the casting wall (basically invisible from the exterior), have a more convex, or other predetermined, shape to increase internal surface area if needed.FIG. 2B illustrates an enlarged diagram 180 of therupture area 170 of thepressure relief mechanism 170. As illustrated inFIG. 2B , a thickness of the rupture area X would be smaller than a thickness of the remaining housing Y. The thickness of the rupture area X in relation to the typical wall thickness Y can be determined through materials stress analysis and preliminary validation testing to yield at a specified overpressure value. Therupture area 175 may be provided on the interior or exterior of thehousing 100′ without departing from the scope of the present inventive concept. - Referring now to
FIGS. 3A through 3C , further embodiments of gas filled housings including a pressure relief mechanism in accordance with some embodiments of the present inventive concept will be discussed. In particular,FIG. 3A is a diagram of a side view of an example of a threephase GIS panel 390. TheGIS panel 390 is provided in ahousing 395, for example, a cast aluminum housing. As illustrated inFIG. 3A , three isolated phases A, B and C are provided in thehousing 395. As illustrated inFIGS. 3B and 3C , gas filledswitchgear housings housings pressure relief mechanism FIGS. 3B and 3C , the gas filledhousings FIGS. 1A and 2A , however, it will be understood that gas filled housing may have any shape consistent with details discussed herein without departing from the scope of the present inventive concept. - As discussed above, some embodiments of the present inventive concept provide for the integration of arc pressure relief mechanisms into housings, for example, cast metal housings, utilized in GIS products. These integrated pressure relief mechanisms may function in a similar manner to conventional mechanisms, such as bolt-on burst disc or rupture plate components, but may do away with a need for additional parts, labor and costs associated with these conventional methods.
- In the drawings and specification, there have been disclosed exemplary embodiments of the inventive concept. However, many variations and modifications can be made to these embodiments without substantially departing from the principles of the present inventive concept. Accordingly, although specific terms are used, they are used in a generic and descriptive sense only and not for purposes of limitation, the scope of the inventive concept being defined by the following claims.
Claims (13)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US17/175,825 US20210384713A1 (en) | 2018-03-28 | 2021-02-15 | Pressure Relief Mechanisms for Gas Insulated Switchgear (GIS) Housings and Related GIS Housings |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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US15/938,488 US10923891B2 (en) | 2018-03-28 | 2018-03-28 | Pressure relief mechanisms for gas insulated switchgear (GIS) housings and related GIS housings |
US17/175,825 US20210384713A1 (en) | 2018-03-28 | 2021-02-15 | Pressure Relief Mechanisms for Gas Insulated Switchgear (GIS) Housings and Related GIS Housings |
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US15/938,488 Continuation US10923891B2 (en) | 2018-03-28 | 2018-03-28 | Pressure relief mechanisms for gas insulated switchgear (GIS) housings and related GIS housings |
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US20210384713A1 true US20210384713A1 (en) | 2021-12-09 |
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US15/938,488 Active US10923891B2 (en) | 2018-03-28 | 2018-03-28 | Pressure relief mechanisms for gas insulated switchgear (GIS) housings and related GIS housings |
US17/175,825 Pending US20210384713A1 (en) | 2018-03-28 | 2021-02-15 | Pressure Relief Mechanisms for Gas Insulated Switchgear (GIS) Housings and Related GIS Housings |
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US15/938,488 Active US10923891B2 (en) | 2018-03-28 | 2018-03-28 | Pressure relief mechanisms for gas insulated switchgear (GIS) housings and related GIS housings |
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CA (1) | CA3094731A1 (en) |
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FR3103309B1 (en) * | 2019-11-19 | 2023-10-27 | Gigavac Llc | SWITCHING DEVICES INCORPORATING A RUPTURE DISC |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
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US5864107A (en) * | 1996-05-24 | 1999-01-26 | S&C Electric Company | Switchgear assembly |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5521567A (en) * | 1994-04-08 | 1996-05-28 | S&C Electric Company | Switchgear module and configurations, and method of fabrication and assembly thereof |
JP2010004656A (en) * | 2008-06-20 | 2010-01-07 | Mitsubishi Electric Corp | Bursting plate, bursting apparatus and gas-insulated switching apparatus using the bursting plate |
KR101463669B1 (en) * | 2010-01-18 | 2014-11-19 | 에이비비 테크놀로지 아게 | Housing of a compressed gas-insulated assembly for an electrical switchgear unit |
FR2974459B1 (en) | 2011-04-22 | 2013-04-26 | Schneider Electric Ind Sas | DEVICE FOR LIMITING THE PRESSURE WITHIN A TANK LOADING AN ELECTRICAL PROTECTION DEVICE, AND ELECTRICAL PROTECTION APPARATUS COMPRISING SUCH A DEVICE |
CN103545741B (en) * | 2012-07-16 | 2016-10-05 | 韩罗产业株式会社 | Rupture disk and gas insulated switchgear having the same |
DE102013211133A1 (en) | 2013-06-14 | 2014-12-18 | Siemens Aktiengesellschaft | Isolation system and mounting method of an insulation system |
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2018
- 2018-03-28 US US15/938,488 patent/US10923891B2/en active Active
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2019
- 2019-03-25 WO PCT/EP2019/025078 patent/WO2019185201A1/en active Application Filing
- 2019-03-25 CA CA3094731A patent/CA3094731A1/en not_active Abandoned
-
2021
- 2021-02-15 US US17/175,825 patent/US20210384713A1/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5864107A (en) * | 1996-05-24 | 1999-01-26 | S&C Electric Company | Switchgear assembly |
Also Published As
Publication number | Publication date |
---|---|
US20190305529A1 (en) | 2019-10-03 |
WO2019185201A1 (en) | 2019-10-03 |
US10923891B2 (en) | 2021-02-16 |
CA3094731A1 (en) | 2019-10-03 |
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