CN110911218A - Protective device for preventing energy storage motor of high-voltage vacuum circuit breaker from being burnt - Google Patents

Protective device for preventing energy storage motor of high-voltage vacuum circuit breaker from being burnt Download PDF

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Publication number
CN110911218A
CN110911218A CN201911373328.7A CN201911373328A CN110911218A CN 110911218 A CN110911218 A CN 110911218A CN 201911373328 A CN201911373328 A CN 201911373328A CN 110911218 A CN110911218 A CN 110911218A
Authority
CN
China
Prior art keywords
box body
air inlet
controller
circuit breaker
fixed
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN201911373328.7A
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Chinese (zh)
Inventor
张国民
刘畅
朱同鑫
马辉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suzhou Zhongkang Power Operation Co Ltd
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Suzhou Zhongkang Power Operation Co Ltd
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 Suzhou Zhongkang Power Operation Co Ltd filed Critical Suzhou Zhongkang Power Operation Co Ltd
Priority to CN201911373328.7A priority Critical patent/CN110911218A/en
Publication of CN110911218A publication Critical patent/CN110911218A/en
Pending legal-status Critical Current

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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66Vacuum switches
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/52Cooling of switch parts
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/52Cooling of switch parts
    • H01H2009/526Cooling of switch parts of the high voltage switches

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Abstract

The invention is suitable for the technical field of power equipment protection, and provides a protection device for preventing an energy storage motor of a high-voltage vacuum circuit breaker from being burnt, which comprises a protection mechanism and a sealing mechanism, wherein the protection mechanism comprises a box body, an air inlet pipe, an air inlet valve, a dust removal cloth bag, an exhaust pipe, a cooling fan, an exhaust valve, a temperature sensor and a controller, the sealing mechanism comprises a cover plate, a support plate, a sleeve pipe and a telescopic rod, the box body is provided with the air inlet pipe and the exhaust pipe which are in an L-shaped structure, the top of the box body is covered with a liftable cover plate, the air inlet valve is arranged in the air inlet pipe, the exhaust valve and the cooling fan are arranged in the exhaust pipe, the temperature sensor and the controller are also arranged in the box body, so that heat can be dissipated into the, the invention achieves the purpose of fire extinguishing, and can provide effective protection and fire prevention functions for equipment.

Description

Protective device for preventing energy storage motor of high-voltage vacuum circuit breaker from being burnt
Technical Field
The invention belongs to the technical field of power equipment protection, and particularly relates to a protection device for preventing an energy storage motor of a high-voltage vacuum circuit breaker from being burnt.
Background
The vacuum circuit breaker is named because arc extinguishing media and insulating media of contact gaps after arc extinguishing are high vacuum; the arc extinguishing device has the advantages of small volume, light weight, suitability for frequent operation and no need of maintenance for arc extinguishing, and is relatively popularized in power distribution networks. The vacuum circuit breaker is an indoor power distribution device in a 3-10 kV and 50Hz three-phase alternating-current system, can be used for protecting and controlling electrical equipment in industrial and mining enterprises, power plants and transformer substations, is particularly suitable for use places requiring no oil, less maintenance and frequent operation, and can be arranged in a middle cabinet, a double-layer cabinet and a fixed cabinet to be used for controlling and protecting high-voltage electrical equipment.
The risk that vacuum circuit breaker can take place to burn when operation trouble or environment are abominable, current vacuum circuit breaker lacks protector, when vacuum circuit breaker takes place the spontaneous combustion, can not in time provide remedial measure, produces bigger loss easily.
Disclosure of Invention
The invention provides a protection device for preventing an energy storage motor of a high-voltage vacuum circuit breaker from being burnt, and aims to solve the problems that the vacuum circuit breaker is lack of the protection device and is unsafe to use.
The invention is realized in this way, a protection device for preventing the energy storage motor of the high-voltage vacuum circuit breaker from being burnt comprises a protection mechanism and a sealing mechanism;
the protection mechanism comprises a box body, an air inlet pipe, an air inlet valve, a dust removal cloth bag, an exhaust pipe, a cooling fan, an exhaust valve, a temperature sensor and a controller, wherein the top of the box body is provided with an opening, the air inlet pipe is fixed on one side wall of the box body and is of an L-shaped structure, one end of the air inlet pipe is connected with the box body, the other end of the air inlet pipe faces downwards, the air inlet valve is installed on the air inlet pipe, the dust removal cloth bag is positioned at the joint of the air inlet pipe and the box body and is sleeved at one end of the box body, the exhaust pipe is fixed on the other side wall of the box body and is of an L-shaped structure, one end of the exhaust pipe is connected with the box body, the other end of the exhaust pipe faces downwards, the cooling fan is installed in the exhaust pipe, the exhaust valve, the temperature sensor and the heat dissipation fan are both electrically connected with the controller;
the temperature sensor is used for detecting the temperature in the box body, the controller controls the cooling fan to be opened when the temperature value is higher than a first preset temperature value according to the temperature value detected by the temperature sensor, the second preset temperature value is higher than the first preset temperature value when the temperature value is higher than a second preset temperature value, the controller controls the cooling fan to be closed, and controls the air inlet valve and the exhaust valve to be closed;
sealing mechanism includes apron, extension board, sleeve pipe, telescopic link and adjusting bolt, the apron lid is established on the opening at the top of box, the bottom of apron is provided with two the extension board, two the extension board is hugged closely respectively the inner wall and the detachable of box are connected the box, be fixed with a plurality ofly respectively on the internal surface of the relative both sides wall of box the sleeve pipe, and each the intraductal swing joint of cover is one the telescopic link, the lower extreme of telescopic link is followed the sheathed tube top is stretched into the sleeve pipe, the upper end fixed connection of telescopic link the extension board, a plurality of regulation holes have been seted up on the telescopic link, install one on the sleeve pipe with regulation hole assorted adjusting bolt.
Preferably, still include installation mechanism, installation mechanism includes mounting panel, movable rod and spring, the mounting panel sets up inside the box and with the diapire of box is parallel, the movable rod is provided with a plurality ofly just the lower extreme of movable rod passes downwards mounting panel and fixed connection the diapire of box, the upper end of movable rod is fixed with a spacing cap, spacing cap is located the top of mounting panel, the spring housing is established just be located on the movable rod the below of mounting panel.
Preferably, a rubber gasket is fixed at the bottom of the limiting cap, and the rubber gasket is sleeved on the movable rod.
Preferably, still include supporting mechanism, supporting mechanism includes the connecting plate, the connecting plate is provided with at least two and the symmetry is fixed the lower surface of box, the both sides border of connecting plate is fixed with one respectively the fagging, the fagging with the connecting plate constitutes a few font structures, install a plurality of screws on the fagging.
Preferably, the connecting plate and the supporting plate are integrally formed by steel plates.
Preferably, the bottom of box is fixed with and runs through the drain pipe of box diapire, install the drain valve in the drain pipe, the drain valve electricity is connected the controller.
Preferably, the alarm device is fixed on the outer side wall of the box body and is electrically connected with the controller;
and when the temperature value detected by the temperature sensor is higher than the second preset temperature value, the controller controls the alarm to start alarming.
Preferably, the connecting plates are provided with two connecting plates which are respectively positioned at two side edges of the lower surface of the box body.
Compared with the prior art, the invention has the beneficial effects that: the invention relates to a protective device for preventing an energy storage motor of a high-voltage vacuum circuit breaker from being burnt, which is characterized in that a box body with an air inlet pipe and an air outlet pipe of an L-shaped structure is arranged, a liftable cover plate is covered at the top of the box body, an air inlet valve is arranged in the air inlet pipe, an air outlet valve and a heat dissipation fan are arranged in the air outlet pipe, and a temperature sensor and a controller are also arranged in the box body, so that heat dissipation can be provided for the box body through the heat dissipation fan, when the temperature in the box body is overhigh, the air inlet valve and the air outlet valve can be closed through the controller to reduce air supplement, so that oxygen in the box body is.
Drawings
Fig. 1 is a schematic view of the overall structure of a protection device for preventing an energy storage motor of a high-voltage vacuum circuit breaker from being burnt.
Fig. 2 is a schematic structural view of the movable rod of the present invention.
Fig. 3 is a schematic structural diagram of the supporting mechanism of the present invention.
In the figure: 1-a protection mechanism, 11-a box body, 12-an air inlet pipe, 13-an air inlet valve, 14-a dust removal cloth bag, 15-an exhaust pipe, 16-a heat dissipation fan, 17-an exhaust valve, 18-a drain pipe, 19-a drain valve, 110-a temperature sensor, 111-a controller, 112-an alarm, 2-a sealing mechanism, 21-a cover plate, 22-a support plate, 23-a sleeve, 24-a telescopic rod, 25-an adjusting bolt, 3-an installation mechanism, 31-an installation plate, 32-a movable rod, 33-a spring, 34-a rubber gasket, 4-a supporting mechanism, 41-a connecting plate, 42-a supporting plate and 43-a screw hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1-3, the present invention provides a technical solution: a protection device for preventing an energy storage motor of a high-voltage vacuum circuit breaker from being burnt comprises a protection mechanism 1, a sealing mechanism 2, an installation mechanism 3 and a supporting mechanism 4.
The protection mechanism 1 comprises a box body 11, an air inlet pipe 12, an air inlet valve 13, a dust removal cloth bag 14, an air outlet pipe 15, a heat radiation fan 16, an air exhaust valve 17, a temperature sensor 110, a controller 111 and an alarm 112, wherein the top of the box body 11 is provided with an opening, the air inlet pipe 12 is fixed on one side wall of the box body 11, the air inlet pipe 12 is of an L-shaped structure, one end of the air inlet pipe 12 is connected with the box body 11, the other end of the air inlet pipe 12 faces downwards, the air inlet valve 13 is installed on the air inlet pipe 12, the dust removal cloth bag 14 is positioned at the joint of the air inlet pipe 12 and the box body 11 and is sleeved at one end of the box body 11, the air exhaust pipe 15 is fixed on the other side wall of the box body 11, the air exhaust pipe 15 is of an L-shaped structure, one end of the air exhaust pipe, the temperature sensor 110 and the heat dissipation fan 16 are electrically connected to a controller 111. A drain pipe 18 penetrating through the bottom wall of the box body 11 is fixed at the bottom of the box body 11, a drain valve 19 is installed in the drain pipe 18, the drain valve 19 is electrically connected with a controller 111, an alarm 112 is fixed on the outer side wall of the box body 11, and the alarm 112 is electrically connected with the controller 111.
Wherein, the box body 11 is a rectangular box. The air inlet pipe 12 is used for allowing external air to enter the box body 11, the air outlet pipe 15 is used for discharging the air in the box body 11 through the cooling fan 16, the purpose of heat dissipation is achieved, and the dust collecting cloth bag 14 can intercept dust in the air entering the box body 11. The drain pipe 18 is used for draining accumulated water in the tank 11 so as to prevent the environment in the tank 11 from being too humid, and the controller 111 controls the drain valve 19 to be opened at regular intervals for a preset time period and then closed so as to drain water at regular intervals. A through hole (not shown) for the wire to pass through is formed on the side wall of the box body 11, and a rubber sleeve is mounted on the edge of the through hole to reinforce the wire.
The temperature sensor 110 is used for detecting the temperature inside the box body 11, the controller 111 controls the cooling fan 16 to be opened according to the temperature value detected by the temperature sensor 110 when the temperature value is higher than a first preset temperature value, when the temperature value is higher than a second preset temperature value, the second preset temperature value is higher than the first preset temperature value, the controller 111 controls the cooling fan 16 to be closed, and controls the air inlet valve 13 and the air outlet valve 17 to be closed, and the controller 111 controls the alarm 112 to start an alarm. The first preset temperature value is a heat dissipation temperature, and the second preset temperature value is a fire early warning temperature, so that early warning and control can be timely performed on a fire. The controller 111 in this embodiment is a single chip microcomputer of AT89S51 type, and the temperature sensor 110 is pt100 type.
Sealing mechanism 2 includes apron 21, extension board 22, sleeve pipe 23, telescopic link 24 and adjusting bolt 25, apron 21 lid is established on the opening at the top of box 11, the bottom of apron 21 is provided with two extension boards 22, box 11's inner wall and detachable connection box 11 are hugged closely respectively to two extension boards 22, be fixed with a plurality of sleeve pipes 23 on the internal surface of the relative both sides wall of box 11 respectively, and telescopic link 24 of swing joint in each sleeve pipe 23, sleeve pipe 23 is stretched into from sleeve pipe 23's top to telescopic link 24's lower extreme, telescopic link 24's upper end fixed connection extension board 22, a plurality of regulation holes have been seted up on the telescopic link 24, install one on the sleeve pipe 23 and adjust hole assorted adjusting bolt 25.
Wherein, apron 21 is used for protecting the top of box 11 to extension board 22 is through fixing bolted connection box 11, and it is convenient to dismantle, and the user can promote apron 21 through telescopic link 24, and fixed through adjusting bolt 25, thereby overhauls the equipment in the box 11. In rainy weather, the cover plate 21 positioned above can shield the equipment, and rainwater is reduced from entering the box body 11.
Installation mechanism 3 includes mounting panel 31, movable rod 32 and spring 33, and mounting panel 31 sets up inside box 11 and parallel with the diapire of box 11, and movable rod 32 is provided with a plurality ofly and the lower extreme of movable rod 32 passes mounting panel 31 and the diapire of fixed connection box 11 downwards, and the upper end of movable rod 32 is fixed with a spacing cap, and spacing cap is located the top of mounting panel 31, and spring 33 cover is established on movable rod 32 and is located the below of mounting panel 31. The bottom of the limit cap is fixed with a rubber gasket 34, and the rubber gasket 34 is sleeved on the movable rod 32.
The mounting plate 31 is used for mounting the vacuum circuit breaker and the energy storage motor and providing support, the spring 33 is used for providing shock absorption, and the mounting plate 31 can reduce the influence of external impact through the movable rod 32 and the spring 33, so that the use is safer.
The supporting mechanism 4 comprises a connecting plate 41, the connecting plate 41 is provided with at least two symmetrical fixing parts which are fixed on the lower surface of the box body 11, two side edges of the connecting plate 41 are respectively fixed with a supporting plate 42, the supporting plate 42 and the connecting plate 41 form a structure shaped like a Chinese character ji, and the supporting plate 42 is provided with a plurality of screw holes 43. The connecting plate 41 and the supporting plate 42 are integrally formed by steel plates. In the present embodiment, the connecting plates 41 are provided two and located at both side edges of the lower surface of the case (11), respectively.
The connecting plate 41 is connected to the case 11 by a plurality of fixing bolts, and the stay 42 is used to connect to an external bracket, thereby fixing the case 11 to the external bracket, and the support mechanism 4 of the zigzag structure can provide stable support to the case 11.
According to the protection device for preventing the energy storage motor of the high-voltage vacuum circuit breaker from being burnt, a user installs equipment in the box body 11 through the installation plate 31, the supporting plate 42 is used for being connected with an external support, so that the box body 11 is fixed on the external support, the supporting mechanism 4 with the zigzag structure can provide stable support for the box body 11, the exhaust pipe 15 exhausts air in the box body 11 through the cooling fan 16, the air inlet pipe 12 supplies external air to enter the box body 11, the purpose of heat dissipation is achieved, and the dust removal cloth bag 14 can intercept dust in the air entering the box body 11. Accumulated water in the box body 11 is discharged through the water discharge pipe 18, so that the environment in the box body 11 is prevented from being too humid, the controller 111 controls the water discharge valve 19 to be opened at regular time and then closed after preset time, so that regular water discharge is performed, the controller 111 detects the temperature value according to the temperature sensor 110, when the temperature value is higher than a first preset temperature value, the controller 111 controls the heat radiation fan 16 to be opened, when the temperature value is higher than a second preset temperature value, the second preset temperature value is higher than the first preset temperature value, the controller 111 controls the heat radiation fan 16 to be closed, the air inlet valve 13 and the air discharge valve 17 are controlled to be closed, and the controller 111 controls the alarm 112 to start and alarm. First temperature value of predetermineeing is radiating temperature, and the second temperature value of predetermineeing is conflagration early warning temperature to can in time carry out early warning and control to the conflagration, mounting panel 31 can reduce the influence of external shock through movable rod 32 and spring 33.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (8)

1. The utility model provides a prevent protector that high-pressure vacuum circuit breaker energy storage motor burns out which characterized in that: comprises a protection mechanism (1) and a sealing mechanism (2);
the protection mechanism (1) comprises a box body (11), an air inlet pipe (12), an air inlet valve (13), a dust removal cloth bag (14), an exhaust pipe (15), a cooling fan (16), an exhaust valve (17), a temperature sensor (110) and a controller (111), wherein the top of the box body (11) is provided with an opening, the air inlet pipe (12) is fixed on one side wall of the box body (11), the air inlet pipe (12) is of an L-shaped structure, one end of the air inlet pipe (12) is connected with the box body (11), the other end of the air inlet pipe (12) faces downwards, the air inlet valve (13) is installed on the air inlet pipe (12), the dust removal cloth bag (14) is positioned at the joint of the air inlet pipe (12) and the box body (11) and is sleeved at one end of the box body (11), the exhaust pipe (15) is fixed on the other side, the exhaust pipe (15) is of an L-shaped structure, one end of the exhaust pipe (15) is connected with the box body (11), the other end of the exhaust pipe (15) faces downwards, the heat dissipation fan (16) is installed in the exhaust pipe (15), the exhaust valve (17) is installed on the exhaust pipe (15), the temperature sensor (110) and the controller (111) are both fixed on the inner side wall of the box body (11), and the temperature sensor (110) and the heat dissipation fan (16) are both electrically connected with the controller (111);
the temperature sensor (110) is used for detecting the temperature inside the box body (11), the controller (111) controls the heat radiation fan (16) to be opened according to the temperature value detected by the temperature sensor (110), when the temperature value is higher than a first preset temperature value, the controller (111) controls the heat radiation fan (16) to be opened, when the temperature value is higher than a second preset temperature value, the second preset temperature value is higher than the first preset temperature value, the controller (111) controls the heat radiation fan (16) to be closed, and controls the air inlet valve (13) and the air outlet valve (17) to be closed;
the sealing mechanism (2) comprises a cover plate (21), support plates (22), sleeves (23), telescopic rods (24) and adjusting bolts (25), the cover plate (21) is covered on an opening at the top of the box body (11), the bottom of the cover plate (21) is provided with two support plates (22), the two support plates (22) are respectively tightly attached to the inner wall of the box body (11) and detachably connected with the box body (11), the inner surfaces of two opposite side walls of the box body (11) are respectively fixed with a plurality of sleeves (23), each sleeve (23) is movably connected with one telescopic rod (24), the lower end of each telescopic rod (24) extends into the corresponding sleeve (23) from the top of the corresponding sleeve (23), the upper end of each telescopic rod (24) is fixedly connected with the corresponding support plate (22), and a plurality of adjusting holes are formed in each telescopic rod (24), the sleeve (23) is provided with the adjusting bolt (25) matched with the adjusting hole.
2. The protection device for preventing the energy storage motor of the high-voltage vacuum circuit breaker from being burnt out as claimed in claim 1, wherein: still include installation mechanism (3), installation mechanism (3) include mounting panel (31), movable rod (32) and spring (33), mounting panel (31) set up box (11) inside and with the diapire of box (11) is parallel, movable rod (32) are provided with a plurality ofly just the lower extreme of movable rod (32) passes downwards mounting panel (31) and fixed connection the diapire of box (11), the upper end of movable rod (32) is fixed with a stop cap, stop cap is located the top of mounting panel (31), spring (33) cover is established on movable rod (32) and be located the below of mounting panel (31).
3. The protection device for preventing the energy storage motor of the high-voltage vacuum circuit breaker from being burnt out as claimed in claim 2, wherein: the bottom of the limiting cap is fixed with a rubber gasket (34), and the rubber gasket (34) is sleeved on the movable rod (32).
4. The protection device for preventing the energy storage motor of the high-voltage vacuum circuit breaker from being burnt out as claimed in claim 1, wherein: still include supporting mechanism (4), supporting mechanism (4) are including connecting plate (41), connecting plate (41) are provided with at least two and the symmetry is fixed the lower surface of box (11), the both sides border of connecting plate (41) is fixed with one fagging (42) respectively, fagging (42) with connecting plate (41) constitute a few font structures, install a plurality of screw (43) on fagging (42).
5. The protection device for preventing the energy storage motor of the high-voltage vacuum circuit breaker from being burnt out as claimed in claim 4, wherein: the connecting plate (41) and the supporting plate (42) are integrally formed by steel plates.
6. The protection device for preventing the energy storage motor of the high-voltage vacuum circuit breaker from being burnt out as claimed in claim 1, wherein: the bottom of box (11) is fixed with and runs through drain pipe (18) of box (11) diapire, install drain valve (19) in drain pipe (18), drain valve (19) electricity is connected controller (111).
7. The protection device for preventing the energy storage motor of the high-voltage vacuum circuit breaker from being burnt out as claimed in claim 1, wherein: the alarm device (112) is fixed on the outer side wall of the box body (11), and the alarm device (112) is electrically connected with the controller (111);
when the temperature value detected by the temperature sensor (110) is higher than the second preset temperature value, the controller (111) controls the alarm (112) to start an alarm.
8. The protection device for preventing the energy storage motor of the high-voltage vacuum circuit breaker from being burnt out as claimed in claim 4, wherein: the connecting plates (41) are provided with two connecting plates which are respectively positioned at the two side edges of the lower surface of the box body (11).
CN201911373328.7A 2019-12-27 2019-12-27 Protective device for preventing energy storage motor of high-voltage vacuum circuit breaker from being burnt Pending CN110911218A (en)

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Application Number Priority Date Filing Date Title
CN201911373328.7A CN110911218A (en) 2019-12-27 2019-12-27 Protective device for preventing energy storage motor of high-voltage vacuum circuit breaker from being burnt

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Application Number Priority Date Filing Date Title
CN201911373328.7A CN110911218A (en) 2019-12-27 2019-12-27 Protective device for preventing energy storage motor of high-voltage vacuum circuit breaker from being burnt

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CN110911218A true CN110911218A (en) 2020-03-24

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111431479A (en) * 2020-04-02 2020-07-17 浙江埃菲生能源科技有限公司 High dynamic DC voltage controller of photovoltaic inverter

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Publication number Priority date Publication date Assignee Title
GB1223833A (en) * 1966-12-19 1971-03-03 Reyrolle A & Co Ltd Improvements relating to vacuum circuit-breakers
US3983345A (en) * 1975-01-30 1976-09-28 General Electric Company Method of detecting a leak in any one of the vacuum interrupters of a high voltage circuit breaker
CN205692761U (en) * 2016-06-21 2016-11-16 常州森源派瑞开关有限公司 One is pressed vacuum circuit breaker
CN207800475U (en) * 2018-02-08 2018-08-31 贵州华良电气有限公司 A kind of support device for high-pressure vacuum breaker intelligent measurement
CN108538678A (en) * 2018-06-25 2018-09-14 许昌市长江高压计量设备有限公司 A kind of outdoor high-pressure vacuum breaker
CN208225790U (en) * 2018-06-16 2018-12-11 杨松梅 A kind of adjustable outdoor vacuum circuit breaker
CN208570448U (en) * 2018-08-21 2019-03-01 苏州清科电气有限公司 A kind of protective device for preventing high-pressure vacuum breaker energy storage motor from burning
CN109461617A (en) * 2018-09-26 2019-03-12 河南长征电气有限公司 A kind of high-pressure vacuum breaker with safeguard function
CN209183453U (en) * 2019-02-12 2019-07-30 江西晶鼎电气有限公司 A kind of outdoor high-voltage vacuum breaker shell structure
CN211125484U (en) * 2019-12-27 2020-07-28 苏州中康电力运营有限公司 Protective device for preventing energy storage motor of high-voltage vacuum circuit breaker from being burnt

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1223833A (en) * 1966-12-19 1971-03-03 Reyrolle A & Co Ltd Improvements relating to vacuum circuit-breakers
US3983345A (en) * 1975-01-30 1976-09-28 General Electric Company Method of detecting a leak in any one of the vacuum interrupters of a high voltage circuit breaker
CN205692761U (en) * 2016-06-21 2016-11-16 常州森源派瑞开关有限公司 One is pressed vacuum circuit breaker
CN207800475U (en) * 2018-02-08 2018-08-31 贵州华良电气有限公司 A kind of support device for high-pressure vacuum breaker intelligent measurement
CN208225790U (en) * 2018-06-16 2018-12-11 杨松梅 A kind of adjustable outdoor vacuum circuit breaker
CN108538678A (en) * 2018-06-25 2018-09-14 许昌市长江高压计量设备有限公司 A kind of outdoor high-pressure vacuum breaker
CN208570448U (en) * 2018-08-21 2019-03-01 苏州清科电气有限公司 A kind of protective device for preventing high-pressure vacuum breaker energy storage motor from burning
CN109461617A (en) * 2018-09-26 2019-03-12 河南长征电气有限公司 A kind of high-pressure vacuum breaker with safeguard function
CN209183453U (en) * 2019-02-12 2019-07-30 江西晶鼎电气有限公司 A kind of outdoor high-voltage vacuum breaker shell structure
CN211125484U (en) * 2019-12-27 2020-07-28 苏州中康电力运营有限公司 Protective device for preventing energy storage motor of high-voltage vacuum circuit breaker from being burnt

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111431479A (en) * 2020-04-02 2020-07-17 浙江埃菲生能源科技有限公司 High dynamic DC voltage controller of photovoltaic inverter

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