WO2020100183A1 - Appareillage de commutation à isolation gazeuse - Google Patents

Appareillage de commutation à isolation gazeuse Download PDF

Info

Publication number
WO2020100183A1
WO2020100183A1 PCT/JP2018/041796 JP2018041796W WO2020100183A1 WO 2020100183 A1 WO2020100183 A1 WO 2020100183A1 JP 2018041796 W JP2018041796 W JP 2018041796W WO 2020100183 A1 WO2020100183 A1 WO 2020100183A1
Authority
WO
WIPO (PCT)
Prior art keywords
main circuit
chamber
room
gas
opening
Prior art date
Application number
PCT/JP2018/041796
Other languages
English (en)
Japanese (ja)
Inventor
敏宏 松永
隆広 森
輝明 江波戸
Original Assignee
三菱電機株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to GB2106008.2A priority Critical patent/GB2593072B/en
Priority to JP2020556471A priority patent/JP7002675B2/ja
Priority to CN201880099206.0A priority patent/CN112956092B/zh
Priority to PCT/JP2018/041796 priority patent/WO2020100183A1/fr
Publication of WO2020100183A1 publication Critical patent/WO2020100183A1/fr

Links

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
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/56—Cooling; Ventilation
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/56—Cooling; Ventilation
    • H02B1/565—Cooling; Ventilation for cabinets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/26—Casings; Parts thereof or accessories therefor
    • H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
    • H02B1/308—Mounting of cabinets together
    • 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

Definitions

  • the present application relates to a gas insulated switchgear.
  • Cooling of the closed container is important for a gas-insulated switchgear in which a circuit breaker, disconnector, etc. that compose the main circuit are housed together with an insulating gas in a closed container, especially if the rated current is large.
  • a heat radiation fin and a fan that ventilates the heat radiation fin are provided on the back surface of the airtight container that houses the main circuit and is filled with an insulating gas, and the temperature detected by the temperature sensor mounted on the surface of the airtight container is also detected.
  • a switchgear including a control circuit for operating and stopping a fan is known (for example, Patent Document 1).
  • the control circuit operates the fan when the detected temperature exceeds the set temperature due to the increase of the energizing current, and the airtight container is cooled through the radiation fins to reduce the size of the airtight container. It enables various configurations.
  • the present application discloses a technique for solving the above-mentioned problems, and cools a main circuit room that houses a main circuit device that forms a main circuit and has a ventilation circuit that opens and closes the main circuit without passing through the cable room. It is also an object of the present invention to provide a highly reliable gas-insulated switchgear having a pressure relief duct.
  • the gas-insulated switchgear disclosed in the present application accommodates a main circuit device that opens and closes a main circuit, and a main circuit chamber in which an insulating gas is sealed, and is arranged above the main circuit chamber, and a bus bar is accommodated.
  • a gas-insulated switchgear in which pressure release ducts for releasing the pressure in the main circuit chamber and the pressure in the cable chamber via a flapper are arranged in compartments in the housing, respectively.
  • a ventilation path is provided that is introduced in the direction of the main circuit chamber through the low voltage control chamber and is discharged through the side surface of the main circuit chamber directly from the second opening or through the low voltage control chamber. It is a thing.
  • the gas insulated switchgear disclosed in the present application it is possible to efficiently cool the main circuit room accommodating the main circuit device without the ventilation path passing through the cable room, and to provide a highly reliable gas having a pressure release duct. It is possible to provide an insulating switchgear.
  • FIG. 1 is a right side view showing the configuration of the gas insulated switchgear according to the first embodiment.
  • a gas-insulated switchgear 1 has a plurality of compartments inside a housing 2, and is divided into a main circuit room 10, a bus room 20, a cable room 30, a low-voltage control room 40, and a pressure release duct 60. ..
  • the main circuit room 10 is a hermetically sealed container in which an insulating gas is sealed, in which a circuit breaker, a disconnector and the like (not shown), which are main circuit devices that constitute the main circuit and open and close the main circuit, are housed.
  • a busbar chamber 20 accommodating a busbar 21 is arranged above the main circuit chamber 10, and one end of a conductor portion (not shown) of the main circuit is connected to the busbar 21 via a bushing 14.
  • a cable chamber 30 accommodating a cable 31 connected to the other end of the conductor portion of the main circuit via the bushing 13 is arranged below the main circuit chamber 10 and below the rear portion.
  • a pressure relief duct 60 is installed in a compartment behind the main circuit room 10. When an accident occurs in the main circuit room 10 or the cable room 30, an internal arc is generated, and the pressure release duct 60 is for releasing the pressure increase due to the internal arc to the outside.
  • a flapper 61 is provided at an upper portion of the cable chamber 30 on the pressure release duct 60 side to open a pressure increase due to the internal arc to the pressure release duct 60 side. Since the flapper 61 is normally closed, the cable chamber 30 itself is a closed compartment.
  • a flapper 62 is provided at the rear of the main circuit room 10 to open the pressure increase due to the internal arc in the main circuit room 10 to the pressure release duct 60 side when an accident occurs.
  • the flapper 62 is provided so as to communicate with the main circuit chamber 10 and is closed during normal use, so that the pressure increase due to the internal arc is not released into the main circuit chamber 10. Further, a flapper 63 is provided on the upper portion of the pressure release duct 60 so that the pressure increase in the pressure release duct 60 can be released to the outside. Normally, the pressure release duct 60 is a closed space.
  • a low-voltage control chamber 40 accommodating at least a control device for controlling opening / closing driving of the main circuit device is arranged in front of and adjacent to the main circuit chamber 10.
  • the low-voltage control room 40 includes a first low-voltage control room (hereinafter referred to as a control room) 50 in which a control device that controls opening / closing driving of the main circuit device is housed, and a circuit breaker that is the main circuit device. It can be divided into a second low-voltage control chamber (hereinafter, referred to as a drive unit chamber) 45 in which a drive unit for opening / closing the disconnector is housed.
  • a drive unit chamber 45 is disposed in front of the main circuit chamber 10, and a space between the side surface of the main circuit chamber 10 and the housing 2 and the drive unit chamber 45 is provided by the first opening 16 provided in the lower front portion of the main circuit chamber 10. And are in communication.
  • a fan 18 is provided in the first opening 16, and a first ventilation port 71 communicating with the outside of the gas-insulated switchgear 1 is provided in a position facing the first opening 16 in front of the drive chamber 45. It is provided.
  • a control chamber 50 is arranged in front of the main circuit room 10 and above the drive chamber 45, that is, in front of the bus room 20, and the main opening is provided by the second opening 17 provided in the upper front part of the main circuit room 10.
  • a second ventilation port 72 communicating with the outside is provided at a position in front of the control chamber 50 and facing the second opening 17.
  • the drive chamber 45 and the control chamber 50 are provided with a mechanism unit and a circuit that operate at a voltage lower than the voltage applied to the cable chamber 30, the main circuit chamber 10 and the bus chamber 20 in terms of voltage. It is a low voltage control room.
  • the main circuit room 10 has a space between it and the housing 2 on the side surface portion. With this configuration, air is introduced from the front of the housing 2 toward the main circuit room 10 and the side surface portion of the main circuit room 10 is opened. Cooling. That is, outside air is taken into the drive chamber 45 from the outside of the gas insulated switchgear 1 through the first ventilation port 71, and is further introduced to the main circuit chamber 10 side by the fan 18 of the first opening 16. The introduced air rises along the side surface of the main circuit chamber 10 and is discharged into the control chamber 50 through the second opening 17. The air discharged from the main circuit room 10 side is discharged to the outside of the gas insulated switchgear 1 through the second ventilation port 72.
  • Cooling fins 15 are provided on both side surfaces of the main circuit room 10, and thermoelectric elements 19 are provided on upper side surfaces of the main circuit room 10. Since the air introduced from the outside rises along the cooling fins 15 as shown by the arrow in the figure, the rising airflow can efficiently cool the main circuit chamber 10. Further, the thermoelectric element 19 is operated to generate electric power at a temperature which is raised and is equal to or lower than the allowable temperature of the main circuit, and the electric power of the thermoelectric element 19 drives the fan 18 provided in the first opening 16.
  • thermoelectric element 19 is provided on the upper portion of the side surface of the main circuit chamber 10 because the heated gas in the main circuit chamber 10 moves to the upper portion, so that the side surface of the main circuit chamber 10 has a higher temperature in the upper portion and the temperature of the main circuit chamber 10 is higher. This is because the upper portion is likely to be heated by electromagnetic induction when the bushing 14 is energized.
  • FIG. 2 is a front sectional view showing the configuration of the gas-insulated switchgear 1 viewed from the AA direction in FIG.
  • the interiors of the bus room 20 and the cable room 30 are omitted.
  • the width of the main circuit chamber 10 is smaller than the width of the housing 2. Therefore, as described above, there is a gap between the housing 2 and both side faces of the main circuit chamber 10, and the cooling fins 15 on both side faces of the main circuit chamber 10 are arranged in this gap.
  • the air introduced in the direction of the main circuit chamber 10 by the fan 18 of the first opening 16 rises along the cooling fins 15 along the side surface of the main circuit chamber 10 as indicated by the arrow in the figure, and the second opening It is discharged from 17.
  • a part of the air that has passed through the cooling fins 15 collides with the lower surface of the busbar chamber 20 and also contributes to cooling the busbar chamber 20.
  • the main circuit room 10 that is separated and partitioned from the cable room 30 is disposed above the cable room 30, and the air is supplied from the front of the main circuit room 10, that is, the front of the housing 2.
  • the main circuit room 10 is cooled by cooling the main circuit room 10 by passing through both side surfaces of the main circuit room 10 and again discharging air from the front side of the main circuit room 10, that is, the front side of the housing 2. Can be cooled efficiently.
  • the air path does not pass through the cable chamber 30, it is possible to provide a highly reliable gas-insulated switchgear capable of ensuring the ventilation path in consideration of safety according to international standards.
  • the pressure release duct 60 can be provided at the rear of the main circuit chamber 10 by such a ventilation passage for introducing air from the front of the main circuit chamber 10 and discharging the air to the front.
  • the fan 18 is provided in the first opening portion 16, it is possible to improve the cooling efficiency of the main circuit room 10, and further, the thermoelectric element 19 that generates power from the fan 18 at a temperature below the allowable temperature of the main circuit device.
  • the power supply for the fan 18 becomes unnecessary by operating the above. This makes it possible to utilize the heat generated by the conduction loss of the main circuit device for cooling and protect the main circuit device from this heat. Further, if the main circuit room 10 can be cooled, the main circuit room 10 can be reduced in size, leading to cost reduction of the gas insulated switchgear 1.
  • the second ventilation port 72 may be provided on the upper side of the drive chamber 45 so as to face the second opening 17.
  • FIG. 2 an example in which the cooling fins 15 are provided on both side surfaces of the main circuit room 10 is shown.
  • the first opening 16 and the second opening 17 may be provided on only one side surface, and the first opening portion 16 and the second opening portion 17 may be provided on both side surfaces so that both side surfaces, including the gaps on the other side surface, serve as ventilation paths.
  • the cooling fins 15 may be provided only on one side surface of the main circuit chamber 10. It goes without saying that the cooling efficiency is highest when the cooling fins 15 are provided on both side surfaces of the main circuit chamber 10.
  • FIG. 5 is a front view showing the configuration of the gas-insulated switchgear according to the second embodiment, and the low-voltage control chamber 40 (45, 50) is omitted, and the insides of the bus room 20 and the cable room 30 are also omitted.
  • a gap is provided in front of the main circuit room 10 also with the low voltage control chamber 40, and cooling fins are provided not only on the side surface of the main circuit room 10 but also on the front surface.
  • the air introduced from the first opening 16 rises along the cooling fins 15 provided on the side surface of the main circuit chamber 10 and is provided on the front surface of the main circuit chamber 10 as indicated by the arrow in the figure.
  • the cooling fins 15a are lifted up and discharged from the second opening 17.
  • a fan 18 can be provided in the first opening 16 and the fan 18 can be driven by the electric power of the thermoelectric element 19.
  • a bus room 20 is provided above the main circuit room 10
  • a cable room 30 is provided below and below the rear
  • a pressure release duct 60 is provided at the rear
  • a drive room 45 and a control room 50 are provided at the front. Since the configuration and the like are the same as those in the first embodiment, the description thereof will be omitted.
  • the air path (ventilation path) for cooling the main circuit room 10 does not pass through the cable room 30, so that the safety according to the international standard is ensured. Therefore, it is possible to provide a highly reliable gas-insulated switchgear capable of ensuring a ventilation path in consideration of the above.
  • the pressure release duct 60 can be provided in the rear part of the main circuit chamber 10 by such a cooling ventilation path that introduces air from the front of the main circuit chamber 10 and discharges the air to the front.
  • the main circuit room 10 which is separated from the cable room 30 and is partitioned is disposed above the cable room 30, and air is introduced from the front of the main circuit room 10, that is, the front of the housing 2 to remove the main circuit room 10. Since the main circuit room 10 is cooled by passing through both side surfaces and the front surface and air is discharged again from the front side of the main circuit room 10, that is, the front side of the housing 2, the main circuit room 10 is made smaller than in the first embodiment. It can be cooled with higher efficiency. In particular, when the cooling fins are provided only on one side surface of the main circuit chamber 10 as shown in FIGS. 3 and 4 of the first embodiment, or when the ventilation path is provided only on one side surface, the front surface is provided.
  • cooling fins it is desirable to arrange cooling fins in the above and to provide a ventilation path to improve cooling efficiency. It should be noted that in practice, the front part of the main circuit room 10 is connected to the drive part for driving the main circuit device, so the range is limited, but the cooling efficiency is not improved by disposing the cooling fins. it is obvious.
  • FIG. 6 is a side view showing the configuration of the gas insulated switchgear according to the third embodiment.
  • a drive unit 41 for opening and closing a circuit breaker and a disconnector which are main circuit devices in the main circuit room 10
  • the drive unit 41 is connected via a flange or the like (not shown), and the airtightness of the main circuit chamber 10 is maintained even when the main circuit device is opened and closed.
  • the air introduced directly from the first opening 16 in the front of the main circuit room 10 rises along the cooling fins 15 and from the second ventilation port 72 of the control room 50 through the second opening 17. Is discharged.
  • the second opening 17 which also serves as the second ventilation port 72 is provided in the upper front part of the main circuit room 10, and the air rising along the cooling fins 15 is directly discharged without passing through the control room 50. Good.
  • the main circuit room 10 can be efficiently cooled, and the air path (ventilation path) for cooling the main circuit room 10 is a cable. Since it does not pass through the chamber 30, it is possible to provide a highly reliable gas-insulated switchgear capable of ensuring a ventilation path in consideration of safety in accordance with international standards. Further, the pressure release duct 60 can be provided at the rear of the main circuit chamber 10 by such a ventilation passage for introducing air from the front of the main circuit chamber 10 and discharging the air to the front.
  • cooling fins may be provided on the front surface of the main circuit chamber 10 which is not connected to the drive section 41, as in the second embodiment.
  • FIG. 7 is a side view showing the configuration of the gas insulated switchgear according to the fourth embodiment.
  • the drive unit chamber 45 and the control chamber 50 include a mechanism unit and a circuit that operate at a voltage lower than the voltage applied to the cable chamber 30, the main circuit chamber 10, and the busbar chamber 20. Since it is a control room, it can be integrated into one low-voltage control room 40 without being divided.
  • a control room is arranged in front of the main circuit room 10
  • a drive section is arranged in a position corresponding to the main circuit equipment in the main circuit room 10 (not shown), and is mounted above it, for example, in a rack.
  • a control device (not shown) is arranged in the.
  • Both a first ventilation port 71 for introducing air from the outside and a second ventilation port 72 for discharging air circulated in the side surface portion of the main circuit room 10 are provided in front of the low voltage control chamber 40.
  • the main circuit room 10 can be efficiently cooled, and the air path (ventilation path) for cooling the main circuit room 10 is a cable. Since it does not pass through the chamber 30, it is possible to provide a highly reliable gas-insulated switchgear capable of ensuring a ventilation path in consideration of safety in accordance with international standards.
  • the pressure release duct 60 can be provided in the rear part of the main circuit chamber 10 by such a cooling ventilation path that introduces air from the front of the main circuit chamber 10 and discharges the air to the front.
  • FIG. 8 is a front view showing the configuration of the gas insulated switchgear 100 according to the fifth embodiment, and the low voltage control room 40 (45) in the front part of the main circuit room 10 is shown so that the arrangement of the main circuit room 10 can be seen. , 50) are omitted.
  • a plurality of housings 2 of the gas insulated switchgear shown in any of the first to fourth embodiments are arranged in parallel and arranged in rows.
  • the busbar chambers 20 of the adjacent housings 2 are connected to each other by a busbar connecting portion 22.
  • a reinforcing member 80 is disposed between the side surface portions of the main circuit chambers 10 of the adjacent housings 2 to reinforce the strength against the opening / closing drive of the main circuit equipment in the main circuit chamber 10 and the side surface of the main circuit chamber 10. Contributes to the cooling of the part.
  • the reinforcing member 80 is made of iron or stainless steel, and the heat conductivity as a metal is not high, but since it is higher than air, it contributes to cooling the side surface portion of the main circuit chamber 10.
  • FIG. 8 shows an example in which three housings 2 are arranged, the number may be two or three or more.
  • the fifth embodiment has the same effects as those of the first to fourth embodiments.
  • the gas-insulated switchgear 100 is configured such that a plurality of housings 2 of the gas-insulated switchgear described in any of the first to fourth embodiments are arranged side by side and arranged in rows, and are reinforced between the main circuit chambers 10 of the adjacent housings 2. Since the member 80 is provided, it is possible to improve the strength of the main circuit chamber 10 of each housing 2 and contribute to the cooling of the side surface portion of the main circuit chamber 10.
  • the ventilation path can be provided only on one side surface of the main circuit room 10, or the cooling fins 15 are provided only on one side surface of the main circuit room 10. If this is not possible, cooling efficiency of the main circuit chamber 10 can be improved by cooling from the side surface of the housing 2 as in the present embodiment.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Patch Boards (AREA)
  • Gas-Insulated Switchgears (AREA)

Abstract

La présente invention concerne un appareillage de commutation à isolation gazeuse (1), dans lequel sont installés de façon à être divisés en compartiments respectifs à l'intérieur d'un boîtier (2) : un compartiment de circuit principal (10) dans lequel un appareil de circuit principal est reçu et un gaz isolant est scellé de manière étanche ; un compartiment de bus (20) disposé au-dessus du compartiment de circuit principal (10) et dans lequel est reçu un bus (21) ; un compartiment de câble (30) disposé au-dessous du compartiment de circuit principal (10) et dans lequel est reçu un câble (31) ; un compartiment de commande à basse tension (45) disposé devant le compartiment de bus (20) et dans lequel est reçu au moins un appareil de commande ; et un conduit d'évacuation de pression (60) dans lequel sont ouvertes la pression provenant du compartiment de circuit principal (10) et la pression provenant du compartiment de câble (30), un trajet de ventilation étant prévu pour introduire de l'air à partir d'une section inférieure avant du compartiment de circuit principal (10) directement ou à travers le compartiment de commande à basse tension (45) dans la direction du compartiment de circuit principal (10), et pour évacuer l'air à partir d'une section supérieure avant du compartiment de circuit principal (10) à travers une section de surface latérale du compartiment de circuit principal (10) directement ou à travers le compartiment de commande à basse tension (45).
PCT/JP2018/041796 2018-11-12 2018-11-12 Appareillage de commutation à isolation gazeuse WO2020100183A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB2106008.2A GB2593072B (en) 2018-11-12 2018-11-12 Gas insulation switchgear
JP2020556471A JP7002675B2 (ja) 2018-11-12 2018-11-12 ガス絶縁開閉装置
CN201880099206.0A CN112956092B (zh) 2018-11-12 2018-11-12 气体绝缘开关装置
PCT/JP2018/041796 WO2020100183A1 (fr) 2018-11-12 2018-11-12 Appareillage de commutation à isolation gazeuse

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2018/041796 WO2020100183A1 (fr) 2018-11-12 2018-11-12 Appareillage de commutation à isolation gazeuse

Publications (1)

Publication Number Publication Date
WO2020100183A1 true WO2020100183A1 (fr) 2020-05-22

Family

ID=70730421

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2018/041796 WO2020100183A1 (fr) 2018-11-12 2018-11-12 Appareillage de commutation à isolation gazeuse

Country Status (4)

Country Link
JP (1) JP7002675B2 (fr)
CN (1) CN112956092B (fr)
GB (1) GB2593072B (fr)
WO (1) WO2020100183A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2021240734A1 (fr) * 2020-05-28 2021-12-02
EP4110025A1 (fr) * 2021-06-22 2022-12-28 ABB Schweiz AG Enceinte pour équipement électrique
JP7422954B1 (ja) 2023-04-21 2024-01-26 三菱電機株式会社 スイッチギヤ

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07241008A (ja) * 1994-02-25 1995-09-12 Mitsubishi Electric Corp 引出形電気機器用クレードル及びそれを有する閉鎖配電盤
JPH1094120A (ja) * 1996-09-12 1998-04-10 Toshiba Corp 金属閉鎖形スイッチギヤ
JP2002325317A (ja) * 2001-04-25 2002-11-08 Nissin Electric Co Ltd スイッチギヤ
JP2009171833A (ja) * 2007-12-18 2009-07-30 Hitachi Ltd スイッチギヤ
JP2009194963A (ja) * 2008-02-12 2009-08-27 Mitsubishi Electric Corp 閉鎖配電盤

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3551399B2 (ja) * 1995-09-28 2004-08-04 株式会社岡村製作所 棚の仕切り装置
CN206211390U (zh) * 2016-10-11 2017-05-31 许继电气股份有限公司 一种充气柜及其泄压通道
CN106684715B (zh) * 2016-11-23 2019-11-08 许继集团有限公司 开关柜及其柜体

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07241008A (ja) * 1994-02-25 1995-09-12 Mitsubishi Electric Corp 引出形電気機器用クレードル及びそれを有する閉鎖配電盤
JPH1094120A (ja) * 1996-09-12 1998-04-10 Toshiba Corp 金属閉鎖形スイッチギヤ
JP2002325317A (ja) * 2001-04-25 2002-11-08 Nissin Electric Co Ltd スイッチギヤ
JP2009171833A (ja) * 2007-12-18 2009-07-30 Hitachi Ltd スイッチギヤ
JP2009194963A (ja) * 2008-02-12 2009-08-27 Mitsubishi Electric Corp 閉鎖配電盤

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2021240734A1 (fr) * 2020-05-28 2021-12-02
WO2021240734A1 (fr) * 2020-05-28 2021-12-02 三菱電機株式会社 Tableau de distribution
JP7226652B2 (ja) 2020-05-28 2023-02-21 三菱電機株式会社 配電盤
EP4110025A1 (fr) * 2021-06-22 2022-12-28 ABB Schweiz AG Enceinte pour équipement électrique
JP7422954B1 (ja) 2023-04-21 2024-01-26 三菱電機株式会社 スイッチギヤ

Also Published As

Publication number Publication date
GB2593072A (en) 2021-09-15
GB202106008D0 (en) 2021-06-09
JPWO2020100183A1 (ja) 2021-09-02
GB2593072B (en) 2022-09-14
JP7002675B2 (ja) 2022-01-20
CN112956092A (zh) 2021-06-11
CN112956092B (zh) 2023-10-17

Similar Documents

Publication Publication Date Title
WO2020100183A1 (fr) Appareillage de commutation à isolation gazeuse
US10629396B2 (en) Arc flash resistant enclosure with segregated cooling
KR20100004959A (ko) 금속폐쇄형 스위치기어
US8733855B2 (en) Arc resistant switchgear modular compartment for instrumentation and circuit breakers
US10049837B2 (en) System and method for ventilating and isolating electrical equipment
US9147541B2 (en) Circuit breaker comprising ventilation channels for efficient heat dissipation
JP2020010496A (ja) スイッチギヤ
KR100977759B1 (ko) 공냉식 유로를 갖는 배전반
US20220037863A1 (en) Distribution board ventilation system
CN112448298B (zh) 配电柜的通风***
JP7279690B2 (ja) スイッチギヤ
JPH08289422A (ja) 閉鎖配電盤
KR101981597B1 (ko) 방열 구조를 갖는 배선용 차단기의 커버
JP2012005242A (ja) 電力変換装置
US9774174B1 (en) Dielectric heat transfer windows, and systems and methods using the same
JP6338148B2 (ja) ファン駆動装置、配電盤
US2525499A (en) Distribution apparatus
KR20130102313A (ko) 가스절연 개폐장치
US10164411B2 (en) Switchgear
WO2012066792A1 (fr) Traversée
JP2018113797A (ja) スイッチギヤ
WO2021240734A1 (fr) Tableau de distribution
KR100311533B1 (ko) 회로 차단기의 통기장치
WO2021140619A1 (fr) Tableau de commande électrique
KR101734231B1 (ko) 회로차단기

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18940457

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2020556471

Country of ref document: JP

Kind code of ref document: A

ENP Entry into the national phase

Ref document number: 202106008

Country of ref document: GB

Kind code of ref document: A

Free format text: PCT FILING DATE = 20181112

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18940457

Country of ref document: EP

Kind code of ref document: A1