CN105185649A - Indoor high-voltage load switch device and method for turning off load current - Google Patents
Indoor high-voltage load switch device and method for turning off load current Download PDFInfo
- Publication number
- CN105185649A CN105185649A CN201510655866.0A CN201510655866A CN105185649A CN 105185649 A CN105185649 A CN 105185649A CN 201510655866 A CN201510655866 A CN 201510655866A CN 105185649 A CN105185649 A CN 105185649A
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- China
- Prior art keywords
- arc
- load switch
- insulator
- switch device
- indoor high
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Classifications
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- 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
- H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
- H01H33/88—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts
- H01H33/90—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by or in conjunction with the contact-operating mechanism
- H01H33/91—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by or in conjunction with the contact-operating mechanism the arc-extinguishing fluid being air or gas
Abstract
The invention relates to an indoor high-voltage load switch device and a method for turning off load current. A common high-voltage load switch device has a simple arc-extinguishing device, can turn on and turn of certain load current and overload current, but cannot use the arc-extinguishing device to turn off short-circuit current, so a fuse is needed to cut off short-circuit current. The indoor high-voltage load switch device comprises a framework (5), a main shaft (1) is mounted on a side plate of an upper side of the framework, a group of upper insulators (2) are mounted on a front end panel of the framework, front ends of the upper insulators are equipped with insulating nozzles (10) and main static contacts (11), lower ends of the upper insulators are upper contact seats (12), a group of lower contact seats (7) are mounted at a left side of a middle position of the front end panel of the framework, a group of lower insulators (4) are mounted at a right side of the middle position of the front end panel of the framework, and the lower insulators are connected with a connecting rod (3) through a connecting shaft. The method for turning off load current is used for the indoor high-voltage load switch device.
Description
technical field:
the present invention relates to a kind of method of indoor high-voltage load switch device and disconnection load current.
background technology:
conventional high voltage load switch device has simple arc-control device, the load current that energy break-make is certain and overload electric current, but can not carry out interrupting short circuit with it, therefore must carry out cutting-off of short-circuit electric current by fuse.Therefore on-load switch often uses together with fuse, high voltage load switch also has isolated high-voltage power supply mostly, guarantee electric equipment thereafter and the function of line security maintenance, because it has obvious open gap after disconnecting usually, the same with high voltage isolator, so this on-load switch has the title of power isolation switches.
summary of the invention:
the object of this invention is to provide a kind of method of indoor high-voltage load switch device and disconnection load current.
above-mentioned object is realized by following technical scheme:
a kind of indoor high-voltage load switch device, its composition comprises: framework, above described framework, side plate is provided with main shaft, insulator on one group is separately installed with above described frame front end panel, described upper insulator front end is provided with insulation nozzle, main fixed contact, described upper insulator lower end are upper touch bases, touch base under being provided with one group on the left of described frame front end panel centre position, insulator under side is provided with one group on the right side of described frame front end panel centre position, described lower insulator is connected with connecting rod by connecting axle.
described indoor high-voltage load switch device, described connecting rod is connected with described main shaft, described main shaft is connected with 2 cut-out springs, described frame front end panel centre position is provided with insulated tension pole, described insulated tension pole is connected to described lower touch base and described lower insulator, above described lower touch base connecting rod, plug-in strip is installed, arc moving contact is installed above described plug-in strip.
described indoor high-voltage load switch device, is provided with 3 fuses below described lower touch base, described fuse side is provided with one group of insulator, is provided with 3 thermal overload releases below described fuse.
a kind of method of indoor high-voltage load switch device and disconnection load current, the method comprises the steps: it is first move on-load switch separating brake, now produce electric arc between the arc moving contact of plug-in strip one end and arc fixed contact, simultaneously main axis and drive piston, the air in compression cylinder during separating brake, from the outside arc blow-out of nozzle, electric arc is extinguished rapidly, and meanwhile, its profile is similar to indoor type isolating switch, also have obvious open gap, therefore it has the effect of isolating switch simultaneously;
the insulator of on-load switch upper end is simple arc control device, it not only plays the effect of supporting insulator, and its inside is a cylinder, the piston of operating mechanism spindle drive is housed, insulation nozzle and arc fixed contact are equipped with in insulator top, solid gas generant formula on-load switch, utilize the energy cut-offfing electric arc to make the gas exhausted material in arc control device decompose the gas produced to carry out arc blow-out arc extinguishing, the same with indoor air compressed load switch, their arc extinguishing ability is less, load current can be cut-off, capacitance current, circulation and overload electric current, but must connect with fuse, by fuse interrupting short circuit, they are applicable to 35kV and following electric power system, especially urban network reconstruction and rural power grids, general adapted CS type hand-power operating mechanism or CJ series electric operating mechanism, if be equipped with earthed switch, hand-power operating mechanism can only be used.
beneficial effect:
1. the present invention is a kind of indoor high-voltage load switch device, wherein the insulator of on-load switch upper end is simple arc control device, it not only plays the effect of supporting insulator, and its inside is a cylinder, the piston of operating mechanism spindle drive is housed, insulation nozzle and arc fixed contact are equipped with in insulator top, when on-load switch separating brake, electric arc is produced between the arc moving contact of plug-in strip one end and arc fixed contact, simultaneously main axis and drive piston during separating brake, air in compression cylinder, from the outside arc blow-out of nozzle, electric arc is extinguished rapidly, this apparatus structure is simple and practical.
its profile of the present invention is similar to indoor type isolating switch, also has obvious open gap, and therefore, it has the effect of isolating switch simultaneously, thus reliably can complete the work of cut-offfing.
the present invention, by on-load switch separating brake, now produces electric arc between the arc moving contact of plug-in strip one end and arc fixed contact, and main axis and drive piston, the air in compression cylinder during separating brake, from the outside arc blow-out of nozzle, makes electric arc extinguish rapidly simultaneously.
the present invention adopts solid gas generant formula on-load switch, they mainly utilize the energy cut-offfing electric arc to make the gas exhausted material in arc control device decompose the gas produced to carry out arc blow-out arc extinguishing, the same with indoor air compressed load switch, their arc extinguishing ability is less, load current, capacitance current, circulation and overload electric current can be cut-off, but must connect with fuse, by fuse interrupting short circuit.
the present invention is applicable to 35kV and following electric power system, especially urban network reconstruction and rural power grids, and general adapted CS type hand-power operating mechanism or CJ series electric operating mechanism, if be equipped with earthed switch, use hand-power operating mechanism.
indoor high-voltage load switch device of the present invention, being characterized in can frequent operation, simultaneously adapted manual operation mechanism or electric operating mechanism, and arc extinction performance is good, and long service life, cost are lower.
accompanying drawing illustrates:
accompanying drawing 1 is structural representation of the present invention.
embodiment:
embodiment 1:
a kind of indoor high-voltage load switch device, its composition comprises: framework 5, above described framework, side plate is provided with main shaft 1, insulator 2 on one group is separately installed with above described frame front end panel, described upper insulator front end is provided with insulation nozzle 10, main fixed contact 11, described upper insulator lower end are upper touch bases 12, touch base 7 under being provided with one group on the left of described frame front end panel centre position, insulator 4 under being provided with one group on the right side of described frame front end panel centre position, described lower insulator is connected with connecting rod 3 by connecting axle.
embodiment 2:
indoor high-voltage load switch device described in embodiment 1, described connecting rod is connected with described main shaft, described main shaft is connected with 2 cut-out springs, described frame front end panel centre position is provided with insulated tension pole, described insulated tension pole is connected to described lower touch base and described lower insulator, above described lower touch base connecting rod, plug-in strip 8 is installed, arc moving contact 9 is installed above described plug-in strip.
embodiment 3:
indoor high-voltage load switch device described in embodiment 1, is provided with 3 fuses 6 below described lower touch base, described fuse side is provided with one group of insulator, is provided with 3 thermal overload releases 13 below described fuse.
embodiment 4:
a kind of indoor high-voltage load switch device disconnects the method for load current, first this method is move on-load switch separating brake, now produce electric arc between the arc moving contact of plug-in strip one end and arc fixed contact, simultaneously main axis and drive piston, the air in compression cylinder during separating brake, from the outside arc blow-out of nozzle, electric arc is extinguished rapidly, and meanwhile, its profile is similar to indoor type isolating switch, also have obvious open gap, therefore it has the effect of isolating switch simultaneously;
the insulator of on-load switch upper end is simple arc control device, it not only plays the effect of supporting insulator, and its inside is a cylinder, the piston of operating mechanism spindle drive is housed, insulation nozzle and arc fixed contact are equipped with in insulator top, solid gas generant formula on-load switch, utilize the energy cut-offfing electric arc to make the gas exhausted material in arc control device decompose the gas produced to carry out arc blow-out arc extinguishing, the same with indoor air compressed load switch, their arc extinguishing ability is less, load current can be cut-off, capacitance current, circulation and overload electric current, but must connect with fuse, by fuse interrupting short circuit, they are applicable to 35kV and following electric power system, especially urban network reconstruction and rural power grids, general adapted CS type hand-power operating mechanism or CJ series electric operating mechanism, if be equipped with earthed switch, hand-power operating mechanism can only be used.
Claims (4)
1. an indoor high-voltage load switch device, its composition comprises: framework, it is characterized in that: above described framework, side plate is provided with main shaft, insulator on one group is separately installed with above described frame front end panel, described upper insulator front end is provided with insulation nozzle, main fixed contact, described upper insulator lower end are upper touch bases, touch base under being provided with one group on the left of described frame front end panel centre position, insulator under side is provided with one group on the right side of described frame front end panel centre position, described lower insulator is connected with connecting rod by connecting axle.
2. indoor high-voltage load switch device according to claim 1, it is characterized in that: described connecting rod is connected with described main shaft, described main shaft is connected with 2 cut-out springs, described frame front end panel centre position is provided with insulated tension pole, described insulated tension pole is connected to described lower touch base and described lower insulator, above described lower touch base connecting rod, plug-in strip is installed, arc moving contact is installed above described plug-in strip.
3. indoor high-voltage load switch device according to claim 1, is characterized in that: be provided with 3 fuses below described lower touch base, and described fuse side is provided with one group of insulator, is provided with 3 thermal overload releases below described fuse.
4. utilize the indoor high-voltage load switch device described in claim 1-4 to disconnect a method for load current, it is characterized in that: the method comprises the steps:
First be move on-load switch separating brake, now produce electric arc between the arc moving contact of plug-in strip one end and arc fixed contact, simultaneously main axis and drive piston during separating brake, air in compression cylinder, from the outside arc blow-out of nozzle, makes electric arc extinguish rapidly, simultaneously, its profile is similar to indoor type isolating switch, also has obvious open gap, and therefore it has the effect of isolating switch simultaneously;
The insulator of on-load switch upper end is simple arc control device, it not only plays the effect of supporting insulator, and its inside is a cylinder, the piston of operating mechanism spindle drive is housed, insulation nozzle and arc fixed contact are equipped with in insulator top, solid gas generant formula on-load switch, utilize the energy cut-offfing electric arc to make the gas exhausted material in arc control device decompose the gas produced to carry out arc blow-out arc extinguishing, the same with indoor air compressed load switch, their arc extinguishing ability is less, load current can be cut-off, capacitance current, circulation and overload electric current, but must connect with fuse, by fuse interrupting short circuit, they are applicable to 35kV and following electric power system, especially urban network reconstruction and rural power grids, general adapted CS type hand-power operating mechanism or CJ series electric operating mechanism, if be equipped with earthed switch, hand-power operating mechanism can only be used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510655866.0A CN105185649A (en) | 2015-10-13 | 2015-10-13 | Indoor high-voltage load switch device and method for turning off load current |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510655866.0A CN105185649A (en) | 2015-10-13 | 2015-10-13 | Indoor high-voltage load switch device and method for turning off load current |
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|---|---|
| CN105185649A true CN105185649A (en) | 2015-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510655866.0A Pending CN105185649A (en) | 2015-10-13 | 2015-10-13 | Indoor high-voltage load switch device and method for turning off load current |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105590777A (en) * | 2016-02-17 | 2016-05-18 | 成都佳美嘉科技有限公司 | Outdoor load switch |
| CN106683915A (en) * | 2017-02-15 | 2017-05-17 | 益和电气集团股份有限公司 | Insulation spindle and load switch |
| CN108807104A (en) * | 2018-06-22 | 2018-11-13 | 国网黑龙江省电力有限公司齐齐哈尔供电公司 | indoor high voltage AC vacuum load switch |
| CN112599378A (en) * | 2020-12-16 | 2021-04-02 | 杭州电力设备制造有限公司 | Indoor isolating switch with insulating partition plate |
| CN112885636A (en) * | 2021-01-12 | 2021-06-01 | 浙江越岭电气有限公司 | High-voltage isolating switch for indoor use |
-
2015
- 2015-10-13 CN CN201510655866.0A patent/CN105185649A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105590777A (en) * | 2016-02-17 | 2016-05-18 | 成都佳美嘉科技有限公司 | Outdoor load switch |
| CN106683915A (en) * | 2017-02-15 | 2017-05-17 | 益和电气集团股份有限公司 | Insulation spindle and load switch |
| CN108807104A (en) * | 2018-06-22 | 2018-11-13 | 国网黑龙江省电力有限公司齐齐哈尔供电公司 | indoor high voltage AC vacuum load switch |
| CN112599378A (en) * | 2020-12-16 | 2021-04-02 | 杭州电力设备制造有限公司 | Indoor isolating switch with insulating partition plate |
| CN112885636A (en) * | 2021-01-12 | 2021-06-01 | 浙江越岭电气有限公司 | High-voltage isolating switch for indoor use |
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Application publication date: 20151223 |
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| WD01 | Invention patent application deemed withdrawn after publication |