CN203026842U - Metal enclosed switching device insulated by environment-friendly gas - Google Patents

Metal enclosed switching device insulated by environment-friendly gas Download PDF

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Publication number
CN203026842U
CN203026842U CN 201220720059 CN201220720059U CN203026842U CN 203026842 U CN203026842 U CN 203026842U CN 201220720059 CN201220720059 CN 201220720059 CN 201220720059 U CN201220720059 U CN 201220720059U CN 203026842 U CN203026842 U CN 203026842U
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CN
China
Prior art keywords
switch
chamber
operating mechanism
environmental protection
pressure relief
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.)
Expired - Fee Related
Application number
CN 201220720059
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Chinese (zh)
Inventor
舒良华
叶锦球
翁佩浩
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.)
ZHEBAO ELECTRIC (HANGZHOU) GROUP CO Ltd
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ZHEBAO ELECTRIC (HANGZHOU) GROUP 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
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Priority to CN 201220720059 priority Critical patent/CN203026842U/en
Application granted granted Critical
Publication of CN203026842U publication Critical patent/CN203026842U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a metal enclosed switching device employing environment-friendly gas. The metal enclosed switching device is characterized in that a busbar room, a low-voltage control room, a master switch room, an operating mechanism chamber and a pressure release channel are sequentially arranged inside a box body; each room is completely isolated by a metal partition plate; and nitrogen is fully filled inside the box body as an insulating medium. According to the metal enclosed switching device, the metal enclosed switching device employing environment-friendly gas as the insulating medium can be provided; and the metal enclosed switching device has high environmental protection property, is simple in structure and high in reliability, and is unlikely to be affected by an external environment.

Description

The gas isolated metal sealing switch device of environmental protection
Technical field
The utility model relates to a kind of switching device, particularly adopts the gas isolated metal sealing switch device of environmental protection.
Background technology
At present, along with the fast development of switchgear, gas-insulated switchgear device and cabinet shape gas-insulated switchgear device occur, effectively solved the problem of switchgear miniaturization and closure.Gas-insulated switchgear device is with various electric equipments with as the high pressure SF of dielectric 6Gas is sealed in a tubular metal container jointly, and the advantages such as small volume and good leak tightness are arranged.By contrast, cabinet shape gas-insulated switchgear device has higher reliability, fail safe than gas-insulated switchgear device, simultaneously also can simplify maintenance, occupies the construction land scope less, and owing to forming the outward appearance same with other controller switching equipments, can be easily and peripheral environment coordination.In cabinet describes device, a large amount of electric equipments is installed in the low-voltage insulation gaseous environment and according to different purposes separates.
Representative cabinet shape gas-insulated switchgear device is usually with SF 6Air seal is in the inside of casing, and with cable vault, isolating switch chamber and this SF of bus-bar room 6The gas isolation of insulating.Taken in the equipment such as lightning arrester and inspection electricity in the cable vault, and be connected with bonding conductor separately.
Yet what mainly adopt due to existing cabinet shape gas-insulated switchgear device is the mode that three-stations load switch and air-insulated vacuum circuit-breaker are combined.Because this mode is that vacuum circuit-breaker is arranged in the cable vault of ring main unit, use SF 6Therefore gas exist environmental issue as the insulating gas in the switch gear room, and be not easy to safeguard, also reduced reliability.
The utility model content
The utility model is completed in view of the above problems, its purpose is to provide a kind of environmental protection gas that adopts as the metal sealing switch device of dielectric, the feature of environmental protection with height, and simple in structure, reliability is high, be not easy to be subject to the impact of external environment.
Environmental protection gas metal sealing switch device of the present utility model, it is characterized in that: be provided with bus-bar room, low voltage control chamber, main switch chamber, operating mechanism chamber and pressure relief channels in casing, isolated fully by metal partion (metp) between each chamber, be full of nitrogen as dielectric in above-mentioned casing.
According to environmental protection gas metal sealing switch device of the present utility model, wherein, above-mentioned bus-bar room and above-mentioned low voltage control chamber are adjacent to arrange in the horizontal direction, be provided with above-mentioned operating mechanism chamber below above-mentioned low voltage control chamber, above-mentioned operating mechanism chamber and above-mentioned pressure relief channels and above-mentioned main switch chamber are adjacent to arrange in the horizontal direction.
according to environmental protection gas metal sealing switch device of the present utility model, wherein, at the indoor vacuum circuit-breaker that is provided with of above-mentioned main switch, in above-mentioned operating mechanism chamber, be provided with the operating mechanism of three-station isolating/grounding switch, it is indoor that the output main shaft of the operating mechanism of this three-station isolating/grounding switch extends to above-mentioned main switch, this output main shaft has angular wheel in above-mentioned main switch indoor end, the angular wheel engagement that the end of indoor switch connecting lever forms with being arranged at above-mentioned main switch, the other end of this switch connecting lever switch feeler lever indoor with being arranged at above-mentioned main switch is connected, and so that this switch feeler lever is with respect to being arranged on the indoor main line contact of above-mentioned main switch or the mode of disengaging, correspondingly move with the rotation of above-mentioned output main shaft.
According to environmental protection gas metal sealing switch device of the present utility model, wherein, also be provided with the cable vault, above-mentioned pressure relief channels is arranged at the dorsal part of above-mentioned main switch chamber, above-mentioned cable vault, is provided with above above-mentioned pressure relief channels for electric arc being discharged the pressure relief plate of above-mentioned pressure relief channels.
According to environmental protection gas metal sealing switch device of the present utility model, wherein, plate is provided with a plurality of observation windows in front.
According to the utility model, can provide a kind of environmental protection gas that adopts as the metal sealing switch device of dielectric, have the feature of environmental protection of height, and simple in structure, reliability is high, be not easy to be subject to the impact of external environment.
Description of drawings
Fig. 1 is the circuit diagram for the main electrical scheme principle that the gas isolated metal sealing switch device of environmental protection of the present utility model is described.
Fig. 2 is the front view of the gas isolated metal sealing switch device of environmental protection of the present utility model.
Fig. 3 is the side cross-sectional, view of the internal structure of the gas isolated metal sealing switch device of expression environmental protection of the present utility model.
Fig. 4 is the front view after lower panel laid down of expression environmental protection of the present utility model gas isolated metal sealing switch device.
Description of reference numerals:
The 1-bus-bar room; 2-low voltage control chamber; 3-main switch chamber; 4-operating mechanism chamber; The 5-cable vault; 6-Current Mutual Inductance chamber; The 7-cable; The 8-lightning arrester; The 9-main bus bar; The 10-pressure relief plate; The 11-pressure relief valve; The 12-pressure relief channels; 13-low voltage control chamber door; 14-observation ward; 15-operating mechanism chamber door; The 17-cable chamber door; The 18-tank observation window of gas; 19-1-switch feeler lever; 19-2-switch connecting lever; The operating mechanism of 20-three-station isolating/grounding switch; The 21-vacuum circuit-breaker; 22-main line contact; The upper outlet casing tube of 23-; The 24-main bus bar; The upper outside taper bushing of 25-; The 26-three-station isolating/grounding switch; The 27-vacuum circuit-breaker; 28-electrification display transducer; The 29-bushing current transformer; The lower outside vertebra sleeve pipe of 30-; The 31-lightning arrester; The 32-cable.
Embodiment
Below, with reference to accompanying drawing, the execution mode of the gas isolated metal sealing switch device of environmental protection of the present utility model is elaborated.
Fig. 1 is the circuit diagram for the main electrical scheme principle that the gas isolated metal sealing switch device of environmental protection of the present utility model is described.as shown in Figure 1, be respectively the main bus bar 24 that connects successively along directions X, upper outside taper bushing 25, three-station isolating/grounding switch 26, vacuum circuit-breaker 27, electrification display transducer 28, bushing current transformer 29, lower outside vertebra sleeve pipe 30, cable 32 and lightning arrester 31, wherein, one end of three-station isolating/grounding switch 26 is connected with vacuum circuit-breaker 27, the other end is ground connection, switch between isolation and connection, when the earth terminal closure, when connecting the end disconnection, one end ground connection of vacuum circuit-breaker 27, closed when connecting end, when ground connection disconnects, vacuum circuit-breaker 27 is connected in series with isolating/grounding switch 26.
Fig. 2~Fig. 4 represents the structure of the gas isolated metal sealing switch device of environmental protection of the present utility model.As Fig. 2, Fig. 3 and shown in Figure 4, the gas isolated metal sealing switch device of environmental protection comprises bus-bar room 1, low voltage control chamber 2, main switch chamber 3, operating mechanism chamber 4, cable vault 5, Current Mutual Inductance chamber 6, pressure relief channels 12, low voltage control chamber door 13 and observation ward 14 etc., is isolated fully by metal partion (metp) between each chamber.
As Fig. 2, Fig. 3 and shown in Figure 4, the gas isolated metal sealing switch device of environmental protection (following also referred to as switching device) is made of the gas tank with difference in functionality of the stainless steel dividing plate isolation of arranging on above-below direction and fore-and-aft direction.Be provided with low voltage control chamber 2 in the top of switching device near front panel one side, be adjacent in the horizontal direction be provided with bus-bar room 1 with low voltage control chamber 2.Be provided with operating mechanism chamber 4 below low voltage control chamber 2, be adjacent in the horizontal direction be provided with main switch chamber 3 with operating mechanism chamber 4.Be provided with cable vault 5 below main switch chamber 3, be adjacent to be provided with pressure relief channels 12 with main switch chamber 3.
As shown in Figure 3, in bus-bar room 1, main bus bar 9 is connected with main line contact 22 in main switch chamber 3 by upper outlet casing tube 23.Main bus bar 9 runs through cabinet.Main bus bar 9 in bus-bar room 1 is tangible isolated bus, adopts copper to make as material, is formed with silicone rubber insulation layer and bonding layer on it.Main bus bar 9 adopts plug-ins shielding expansion bus special joints to be connected with upper outlet casing tube 23 in main switch chamber 3.In addition, there is not any exposed electrified body in bus-bar room 1.For switching device is isolated mutually, and can bear the effect of short-circuit electromotive force, all be equiped with metal partion (metp) and sleeve pipe between bus-bar room 1 and other each chambers.
Main switch chamber 3 is the main switch gas tank, is provided with the end of output main shaft of the operating mechanism 20 of vacuum circuit-breaker 21, three-station isolating/grounding switch in main switch chamber 3.Main switch chamber 3 is formed by corrosion resistant plate (not magnetic conductivity) seal welding, and 3 inside is full of environmental protection gas nitrogen (N in the main switch chamber 2) as dielectric.3 dorsal part is provided with pressure relief valve 11 in the main switch chamber.In addition, are connected with the cable vault with bus-bar room 1 respectively and are connected by being placed in upper outlet casing tube 23 in main switch chamber 3.
In operating mechanism chamber 4, be provided with the spring operating mechanism of vacuum circuit-breaker 21, operating mechanism 20 and the mechanical interlock mechanism of three-station isolating/grounding switch.Each functional compartments that arranges in operating mechanism chamber 4 is isolated mutually by metal partion (metp).the operating mechanism 20 of three-station isolating/grounding switch is installed in operating mechanism chamber 4, its output main shaft extends in main switch chamber 3, the end of this output main shaft in main switch chamber 3 has angular wheel, be the miter angle engagement with the angular wheel of the end of switch connecting lever 19-2, the other end of switch connecting lever 19-2 is connected with switch feeler lever 19-1, driving switch connecting lever 19-2 when output main shaft lateral rotation seesaws, by seesawing of switch connecting lever 19-2, pull switch feeler lever 19-1 contacts with main line contact 22, form the closure state of switching device, perhaps pull-up switch feeler lever 19-1, form the off-state of switching device.
2 inside is provided with the low-voltage components such as control loop, measuring instrument, protection relay, low-tension fuse, secondary component, secondary cable in the low voltage control chamber.
In the main switch chamber 3, the dorsal part of cable vault 5 is provided with pressure relief channels 12, is used in the cable vault 5 and main switch chamber 3 the is inner arcing air pressure of releasing when producing arcing.Be provided with pressure relief plate 10 above pressure relief channels 12, open pressure relief plate 10 by hot gas and hot particle air pressure that inner arcing produces, with electric arc discharge pressure release channel 12.
As shown in Figure 4, at the front surface of switching device, be provided with low voltage control chamber door 13, mechanism's actuating chamber door 15 and cable chamber door 17.Mechanism's actuating chamber door 15 is positioned at the front side of operating mechanism chamber 4, is provided with the simulation of switch main electrical scheme board, the operating state of display switch device intuitively on mechanism's actuating chamber door 15.And, be provided with observation window 14 on mechanism's actuating chamber panel 15, also be provided with tank observation window of gas 18 at the position corresponding with the front of main switch chamber 3, see through two observation windows 14,18, can see the operating state of three-station isolating/grounding switch, thereby guarantee operating personnel's fail safe.
Metal sealing switch device gas isolated according to environmental protection of the present utility model, metal shell with the supporting can played and protective action, owing to having enough mechanical strengths and rigidity, therefore can guarantee the steadiness of equipment, even when producing fault in cabinet, external effect can not appear being out of shape, fracture etc. yet.In addition, can also prevent human body proximity live part or touching moving component, prevent extraneous factor to the impact of inner facility, and anti-locking apparatus be subject to from the outer impact of device.
In addition, all live parts are enclosed in the casing of metal ground connection, in order to realize all insulation, guarantee safety, fill the environmental protection gas nitrogen (N with drying in casing 2) as dielectric.Owing to adopting dry environmental protection gas nitrogen (N 2) as dielectric, therefore can not impact environment, and not be subjected to high height above sea level air pressure on the impact of switch insulation.
In addition, have when switching device inside causes fault by arc short circuit and arc fault can be limited in compartment with interior failure restraint function.And it is simple in structure, each functional structure well-separated, and perfect in shape and function, manufacturing and the cost of safeguarding are all lower.

Claims (5)

1. gas isolated metal sealing switch device of environmental protection is characterized in that:
Be provided with bus-bar room, low voltage control chamber, main switch chamber, operating mechanism chamber and pressure relief channels in casing, isolated fully by metal partion (metp) between each chamber.
2. the gas isolated metal sealing switch device of environmental protection as claimed in claim 1 is characterized in that:
Described bus-bar room and described low voltage control chamber are adjacent to arrange in the horizontal direction, be provided with described operating mechanism chamber below described low voltage control chamber, described operating mechanism chamber and described pressure relief channels and described main switch chamber are adjacent to arrange in the horizontal direction.
3. the gas isolated metal sealing switch device of environmental protection as claimed in claim 1 or 2 is characterized in that:
At the indoor vacuum circuit-breaker that is provided with of described main switch,
in described operating mechanism chamber, be provided with the operating mechanism of three-station isolating/grounding switch, it is indoor that the output main shaft of the operating mechanism of this three-station isolating/grounding switch extends to described main switch, this output main shaft has angular wheel in described main switch indoor end, the angular wheel engagement that the end of indoor switch connecting lever forms with being arranged at described main switch, the other end of this switch connecting lever switch feeler lever indoor with being arranged at described main switch is connected, and so that this switch feeler lever is with respect to being arranged on the indoor main line contact of described main switch or the mode of disengaging, correspondingly move with the rotation of described output main shaft.
4. the gas isolated metal sealing switch device of environmental protection as claimed in claim 3 is characterized in that:
Also be provided with the cable vault,
Described pressure relief channels is arranged at the dorsal part of described main switch chamber, described cable vault, is provided with above described pressure relief channels for electric arc being discharged the pressure relief plate of described pressure relief channels.
5. the gas isolated metal sealing switch device of environmental protection as claimed in claim 4 is characterized in that:
Plate is provided with a plurality of observation windows in front.
CN 201220720059 2012-12-07 2012-12-07 Metal enclosed switching device insulated by environment-friendly gas Expired - Fee Related CN203026842U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220720059 CN203026842U (en) 2012-12-07 2012-12-07 Metal enclosed switching device insulated by environment-friendly gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220720059 CN203026842U (en) 2012-12-07 2012-12-07 Metal enclosed switching device insulated by environment-friendly gas

Publications (1)

Publication Number Publication Date
CN203026842U true CN203026842U (en) 2013-06-26

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220720059 Expired - Fee Related CN203026842U (en) 2012-12-07 2012-12-07 Metal enclosed switching device insulated by environment-friendly gas

Country Status (1)

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CN (1) CN203026842U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104037640A (en) * 2013-09-12 2014-09-10 袁茂银 Sealed type switch cabinet
CN105244798A (en) * 2015-11-05 2016-01-13 北海银河开关设备有限公司 Environment-friendly gas insulating ring main unit
CN107171277A (en) * 2017-07-03 2017-09-15 安徽恒凯电力保护设备有限公司 A kind of zero loss depth current-limiting protection device that technology is cut-off based on Mintrop wave

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104037640A (en) * 2013-09-12 2014-09-10 袁茂银 Sealed type switch cabinet
CN104037640B (en) * 2013-09-12 2017-10-31 袁茂银 A kind of secret switch cabinet
CN105244798A (en) * 2015-11-05 2016-01-13 北海银河开关设备有限公司 Environment-friendly gas insulating ring main unit
CN107171277A (en) * 2017-07-03 2017-09-15 安徽恒凯电力保护设备有限公司 A kind of zero loss depth current-limiting protection device that technology is cut-off based on Mintrop wave

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130626

Termination date: 20201207

CF01 Termination of patent right due to non-payment of annual fee