CN113257610A - High-voltage isolating switch, method for isolating power supply and application - Google Patents
High-voltage isolating switch, method for isolating power supply and application Download PDFInfo
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- CN113257610A CN113257610A CN202110521138.6A CN202110521138A CN113257610A CN 113257610 A CN113257610 A CN 113257610A CN 202110521138 A CN202110521138 A CN 202110521138A CN 113257610 A CN113257610 A CN 113257610A
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- 238000000034 method Methods 0.000 title claims abstract description 12
- 239000012212 insulator Substances 0.000 claims abstract description 56
- 230000005404 monopole Effects 0.000 claims abstract description 8
- 229910052573 porcelain Inorganic materials 0.000 claims description 14
- 238000009434 installation Methods 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 238000002955 isolation Methods 0.000 claims description 7
- 230000003068 static effect Effects 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 230000008859 change Effects 0.000 claims description 2
- 230000007246 mechanism Effects 0.000 abstract description 17
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 5
- 230000005484 gravity Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
- H01H31/026—Movable parts and contacts mounted thereon
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention belongs to the technical field of isolating switches, and discloses a high-voltage isolating switch, a method for isolating a power supply and application thereof, wherein the high-voltage isolating switch is an isolating switch with an indoor high-voltage grounding switch, a first outdoor high-voltage isolating switch or a second outdoor high-voltage isolating switch; the isolating switch with the grounding switch comprises a flush mounting type, a through-wall type and a three-pole type; the switch comprises a switch underframe, a rotating shaft, a post insulator, a pull rod insulator, a wall bushing, a main contact knife, a grounding blade, a contact seat, a conductive bar and a bus bar; the first outdoor high-voltage isolating switch comprises a base, a post insulator, a conducting part and a manual operating mechanism; the second outdoor high-voltage isolating switch consists of three monopoles, and each monopole is fixed on a base by two rod-type supporting insulators respectively. The two power-assisted springs are additionally arranged on the two sides of the switch underframe, an operating mechanism is omitted, the main shaft is directly operated by penetrating the operating handle, and the switch underframe is simple in structure, compact in overall dimension, smaller than the conventional size and suitable for being used in places with narrow space.
Description
Technical Field
The invention belongs to the technical field of isolating switches, and particularly relates to a high-voltage isolating switch, a method for isolating a power supply and application.
Background
At present: the isolating switch is a switch device which is mainly used for isolating a power supply and switching over, communicating and cutting off a small current circuit and has no arc extinguishing function. When the isolating switch is in the separated position, the contacts have insulation distance meeting the specified requirements and obvious disconnection marks; a switching device capable of carrying current in normal loop conditions and current in abnormal conditions (e.g., short circuit) for a specified period of time when in the closed position. The high-voltage isolating switch is generally used as a high-voltage isolating switch, namely an isolating switch with rated voltage of more than 1kV, the high-voltage isolating switch has a simple working principle and structure, but has high requirements on working reliability due to large usage amount, and has large influence on the design, establishment and safe operation of a substation and a power plant. The main characteristic of the isolating switch is that it has no arc-extinguishing capability, and can only open and close the circuit under the condition of no load current.
At present, a common switch is an upper wire and a lower wire. When the design needs to be gone out on the inlet wire down, directly rotate the switch 180, touch the risk that the sword opening exists like this downwards and be touched and switch on for the direct static contact of influence heavily when pull rod insulator fracture or not hard up, cause the maintainer danger of electrocuteeing.
At present, the conventional switch is formed by driving an isolating switch to be switched on and off by an operating mechanism through an operating connecting rod, so that the on-site debugging and matching of the operating mechanism and the switch are of great importance, but the on-site switching on and off of the switch is not in place due to the fact that the operating mechanism and the switch are matched in a problem often, and a manufacturer needs to send a person to the on-site to deal with the problem.
Through the above analysis, the problems and defects of the prior art are as follows:
when a pull rod insulator is broken or loosened, the contact knife of the existing isolating switch is directly contacted and conducted with a static contact under the influence of gravity, so that electric shock danger of maintainers is caused.
The conventional switch is that an operating mechanism drives an isolating switch to realize the opening and closing of the switch through an operating connecting rod, so that the opening and closing of the switch are not in place easily.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a high-voltage isolating switch, a method for isolating a power supply and application.
The invention is realized in such a way that the high-voltage isolating switch is an isolating switch with an indoor high-voltage grounding switch, a first outdoor high-voltage isolating switch or a second outdoor high-voltage isolating switch; the isolating switch with the grounding switch comprises a flush mounting type, a through-wall type and a three-pole type; the switch is provided with a switch underframe, a rotating shaft, a post insulator, a pull rod insulator, a wall bushing, a main contact knife, a grounding blade, a contact seat, a conductive bar and a bus bar;
6 support porcelain bottles are fixed on the switch underframe by using M16 bolts, and a gasket is additionally arranged between the switch underframe and the support porcelain bottles; a front wiring board and a bent board are arranged on a support porcelain bottle of the wire inlet end; a large angle steel is installed on a support porcelain bottle on the outgoing line side, a static contact is fixed on the angle steel through an M8 bolt, one end of a contact knife is fixed on a front wiring board, butterfly springs are additionally installed at two ends of the contact knife, the contact knife is rotated to a switching-off position after the butterfly springs are installed, after movable joint bolts are additionally installed at two ends of a pull rod insulator, one end of the pull rod insulator is connected to the contact knife through a pin, and the other end of the pull rod insulator is connected to a main shaft of the underframe. Arranging the ground on a ground cutter shaft, wherein 16 holes in a ground row are concentric with 16M 8 wire holes in the ground cutter shaft, sequentially placing 4 pairs of ground cutters on the ground row to enable the holes above the ground row to be concentric with M8 wire holes in the ground cutter shaft, fixing the ground cutters on the ground cutter shaft by using M8 bolts, arranging disc-shaped springs on two sides of the upper end of each ground cutter, fixing the ground cutters by using M8 bolts, arranging a cushion cover between two cutter rows at the lower end of each ground cutter, and screwing the cushion covers by using M8 bolts; after the installation, power-assisted springs are installed at the left end and the right end of the underframe, and flexible connection is installed on the underframe; then, the main cutter shaft and the ground cutter shaft are respectively provided with a crank arm in sequence, and two ends of the elbow are respectively connected with the two crank arms through pins, so that the main ground cutter is switched on and switched off; the interlocking relation of the main knife opening and the ground knife closing; after the installation, the operation handle is used for operating, and the main cutter and the ground cutter are separated and combined; and installing an auxiliary switch after all the auxiliary switches are in place, and debugging.
Furthermore, the double-rotating-shaft common switch underframe and the contact knife on-off position are limited by two stop gears on the rotating shaft.
Furthermore, 6 post insulators are respectively installed on the bottom frame of the flush mounted switch, 3 pull rod insulators are respectively connected to the small crank arms of the main rotating shaft, 3 cross-shaped or inverted T-shaped contact seats and 3 inverted T-shaped or cross-shaped contacts are respectively installed on the post insulators, 3 pairs of grounding blades are respectively installed on the contact seats, the contact blades are connected with the pull rod insulators, a bus bar is installed on the auxiliary rotating shaft, and 3 pairs of blades are respectively installed.
Furthermore, 3 post insulators and 3 wall bushing are respectively installed on the through-wall switch underframe, 1 pull rod insulator is respectively connected to the small crank arm of the main rotating shaft, 3 conductive bars are installed in the bushings, 3 contacts are respectively installed on the post insulators, 3 pairs of blades and blades are connected to the conductive bars and are also connected to the pull rod insulators, a bus bar is installed on the auxiliary rotating shaft, and 3 pairs of grounding blades are respectively installed on the auxiliary rotating shaft.
Further, the first outdoor high-voltage isolating switch comprises a base, a post insulator, a conducting part and a manual operating mechanism;
the conductive part comprises a conductive rod and a conductive seat, and the conductive rod is connected with the conductive seat through flexible connection.
Further, the second outdoor high-voltage isolating switch consists of three monopoles, each monopole is fixed on a base through two rod-type supporting insulators, and the intersection angle is 50 degrees.
Furthermore, each single pole is composed of a conductive part, a post insulator, a base and a manual operating mechanism.
Another object of the present invention is to provide a method for isolating a power supply, which uses the high voltage isolation switch to disconnect a high voltage service device from a live device with a disconnection point therebetween.
The invention also aims to provide a method for matching the disconnecting switch with the circuit breaker, which uses the high-voltage disconnecting switch to carry out switching operation according to the requirement of a system operation mode so as to change the system operation wiring mode.
Another object of the present invention is to provide a method for switching on or off a low current circuit using the high voltage isolator.
By combining all the technical schemes, the invention has the advantages and positive effects that: the invention has simple structure and compact overall dimension which is smaller than the conventional dimension, and can be suitable for being used in places with narrow space. According to the invention, the opening of the contact knife is upward, and when the pull rod insulator is damaged, the contact knife is downwards disconnected from the static contact by gravity, so that the personal safety of maintainers is effectively avoided. The two power-assisted springs are additionally arranged on two sides of the switch chassis, an operating mechanism is omitted, the operating handle penetrates through the main shaft to be directly operated, when the switch main knife is switched on, the springs release energy, the main knife can be easily switched on through the elasticity of the springs and the power assistance of the operating handle, and when the switch main knife is switched off, the springs are in an energy storage state through the rotation of the operating handle so as to prepare for the next switching-on.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained from the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a high-voltage isolating switch provided in an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a contact knife according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of an operating handle according to an embodiment of the present invention.
In the figure: 1. a switch chassis; 2. bending a plate; 3. a front wiring board; 4. a disc spring; 5. a pin; 6. a cushion cover; 7. large angle steel; 8. static contact; 9. soft connection; 10. a grounding knife; 11. a ground bar; 12. a disc spring; 13. a spring; 14. an auxiliary switch; 15. a crank elbow; 16. a pin; 17. a gasket; 18. a porcelain bottle; 19. an insulating pull rod; 20. an eye bolt; 21. contacting a cutter; 22. the handle is operated.
Fig. 4 is a schematic structural diagram of a first outdoor high-voltage isolating switch provided in the embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a second outdoor high-voltage isolating switch provided in the embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following 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.
In view of the problems in the prior art, the present invention provides a high voltage isolation switch, a method for isolating a power supply, and an application thereof, and the present invention is described in detail below with reference to the accompanying drawings.
As shown in fig. 1 to 5, the high-voltage isolation switch provided by the embodiment of the invention is an isolation switch with an indoor high-voltage grounding switch, a first outdoor high-voltage isolation switch or a second outdoor high-voltage isolation switch.
The isolating switch with the grounding switch in the embodiment of the invention comprises a flush mounting type, a through-wall type and a three-pole type; the switch comprises a switch underframe 1, a rotating shaft, a post insulator, a pull rod insulator, a wall bushing, a main contact knife, a grounding blade, a contact seat, a conductive bar and a bus bar.
6 support porcelain bottles 19 are fixed on the switch underframe 1 by using M16 bolts, and a gasket 18 is additionally arranged between the switch underframe 1 and the support porcelain bottles 19. A front wiring board 3 and a bent board 2 are arranged on a support porcelain bottle 1 at the wire inlet end. A large angle steel 7 is installed on a support porcelain bottle 1 on the outgoing line side, a static contact 8 is fixed on the angle steel 7 through an M8 bolt, one end of a contact knife 22 is fixed on a front wiring board 3, butterfly springs 4 are additionally installed at two ends of the contact knife 22, after the butterfly springs 4 are installed, the contact knife 22 is rotated to a switching-off position, after movable joint bolts 21 are additionally installed at two ends of a pull rod insulator 20, one end of the pull rod insulator is connected to the contact knife 22 through a pin 8, and the other end of the pull rod insulator is connected to a main shaft of an underframe. The grounding bar 11 is placed on a grounding knife shaft, 16 holes on the grounding bar 11 are concentric with 16M 8 wire holes on the grounding knife shaft, 4 pairs of grounding knives 10 are sequentially placed on the grounding bar 11, the holes on the grounding bar are concentric with M8 wire holes on the grounding knife shaft, then the grounding knife is fixed on the grounding knife shaft by M8 bolts, disc-shaped springs 12 are arranged on two sides of the upper end of each grounding knife 10 and fixed by M8 bolts, a cushion cover 6 is arranged between two knife rows at the lower end, and the two knife rows are screwed by M8 bolts. After the installation, the left end and the right end of the underframe are provided with the power-assisted springs 13, and the underframe is provided with the flexible connectors 9. Then, the main cutter shaft and the ground cutter shaft are respectively provided with a crank arm 15 in sequence, and two pins 17 respectively penetrate through two ends of the elbow 16 to be connected with the two crank arms 15, so that the main ground cutter is switched on and switched off; the interlocking relation of the main knife opening and the ground knife closing. After the installation, the operation handle 23 is used for operation, and the main cutter and the ground cutter are separated and combined. And after all the auxiliary switches are in place, the auxiliary switches 14 are installed and debugged.
The double-rotating-shaft common switch underframe and the contact cutter on-off position are limited by two stop gears on the rotating shaft.
When the switch works, the main switch is in a closing state, and the grounding switch is in an opening state. The ground break is not less than 125mm, and the operating handle is in the switching-on position. When the switch does not work (or is overhauled), the rotating shaft is rotated by the operating handle, the main blade is completely in a switching-off state, the distance between the main blade fractures is larger than 150mm, and the grounding blade is also in a switching-on state. The mechanism is also in the dispensing position. When the switch needs to work (or when the maintenance is finished), the main shaft is operated by the operating handle, so that the main blade starts to be switched on, the grounding blade also starts to be switched off at the same time, and when the main blade is completely in a switched-on state, the operating handle is also in a switched-on position at the moment, namely a switching-off and switching-on operation cycle of the product.
In the embodiment of the invention, 6 post insulators are respectively arranged on a bottom frame of a flush mounted switch, 3 pull rod insulators are respectively connected to small crank arms of a main rotating shaft, 3 cross-shaped or inverted T-shaped contact bases and 3 inverted T-shaped or cross-shaped contacts are respectively arranged on the post insulators, 3 pairs of grounding blades are respectively arranged on the contact bases, the contact blades are connected with the pull rod insulators, a bus bar is arranged on a secondary rotating shaft, and then 3 pairs of blades are respectively arranged.
The through-wall switch underframe in the embodiment of the invention is respectively provided with 3 post insulators and 3 through-wall sleeves, the small crank arm of the main rotating shaft is respectively connected with 1 pull rod insulator, the sleeves are internally provided with 3 conductive bars, the post insulators are respectively provided with 3 contacts, the conductive bars are connected with 3 pairs of blades and are also connected with the pull rod insulators, the auxiliary rotating shaft is provided with a bus bar, and then is respectively provided with 3 pairs of grounding blades.
The first outdoor high-voltage isolating switch in the embodiment of the invention comprises a base, a post insulator, a conducting part and a manual operating mechanism; the conductive part comprises a conductive rod and a conductive seat, and the conductive rod is connected with the conductive seat through flexible connection.
The second outdoor high-voltage isolating switch in the embodiment of the invention consists of three monopoles, each monopole is respectively fixed on a base by two rod-type supporting insulators, and the intersection angle is 50 degrees. Each single pole is composed of a conductive part, a post insulator, a base and a manual operating mechanism.
When the second outdoor high-voltage isolating switch in the embodiment of the invention is installed, the independent single-pole isolating switch is arranged on the foundation according to a certain distance and is fastened by using the foundation screws. The three phases are connected by a pull rod and a connector, a ceramic column shaft with a left contact (namely a contact finger) is connected with a main shaft of the mechanism by a water gas pipe at the center of the mechanism and the base of the isolating switch, and the switching-on position is adjusted (namely the isolating switch body and the operating mechanism are both in the switching-on position).
The three-phase rotating shaft and the corresponding rotating shaft of the mechanism are connected by a gas pipe (the concentricity of the rotating shafts must be ensured) when the grounding knife blades connected among three phases of the grounding knife blades are all in the switch-on position (the main knife blade is in the switch-off position), the torsion spring is adjusted to be in the same plane when the grounding knife blades are in the switch-off position, and then the bolt is fixed.
The installation adjustment is allowed only by manual operation, and when the installation adjustment is finished, the manual operation is not correct, and the installation adjustment can be operated electrically (when an electric mechanism is matched). Three phases are synchronously adjusted in a linkage manner, and the three phases are not contacted with each other simultaneously and respectively do not exceed 12mm (110kv), 9mm (63kv) and 6mm (35 kv).
The plane adjustment on the base is utilized to tighten or loosen 4 adjusting screws around the base (care should be taken not to incline the porcelain insulator columns to two sides, and two columns should be kept in the same plane), at this time, the matching condition of the bearing in the base must be paid attention to, and the position of the bearing should be debugged again if necessary to keep the rotation flexible.
And adjusting the grounding knife switch and the pull rod to simultaneously switch on or switch off the three phases so as to keep the grounding brake nine at the same plane position. When the three phases of the isolating switch are well adjusted, the isolating switch is required to fasten a bus (line) and a jointing clamp by bolts when the isolating switch is in a switching-on position.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The above description is only for the purpose of illustrating the present invention and the appended claims are not to be construed as limiting the scope of the invention, which is intended to cover all modifications, equivalents and improvements that are within the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A high-voltage isolating switch is characterized in that the high-voltage isolating switch is an isolating switch with an indoor high-voltage grounding switch, a first outdoor high-voltage isolating switch or a second outdoor high-voltage isolating switch; the isolating switch with the grounding switch comprises a flush mounting type, a through-wall type and a three-pole type; the switch is provided with a switch underframe, a rotating shaft, a post insulator, a pull rod insulator, a wall bushing, a main contact knife, a grounding blade, a contact seat, a conductive bar and a bus bar;
6 support porcelain bottles are fixed on the switch underframe by using M16 bolts, and a gasket is additionally arranged between the switch underframe and the support porcelain bottles; a front wiring board and a bent board are arranged on a support porcelain bottle of the wire inlet end; a large angle steel is installed on a support porcelain bottle on the outgoing line side, a static contact is fixed on the angle steel through an M8 bolt, one end of a contact knife is fixed on a front wiring board, butterfly springs are additionally installed at two ends of the contact knife, the contact knife is rotated to a switching-off position after the butterfly springs are installed, after movable joint bolts are additionally installed at two ends of a pull rod insulator, one end of the pull rod insulator is connected to the contact knife through a pin, and the other end of the pull rod insulator is connected to a main shaft of the underframe. Arranging the ground on a ground cutter shaft, wherein 16 holes in a ground row are concentric with 16M 8 wire holes in the ground cutter shaft, sequentially placing 4 pairs of ground cutters on the ground row to enable the holes above the ground row to be concentric with M8 wire holes in the ground cutter shaft, fixing the ground cutters on the ground cutter shaft by using M8 bolts, arranging disc-shaped springs on two sides of the upper end of each ground cutter, fixing the ground cutters by using M8 bolts, arranging a cushion cover between two cutter rows at the lower end of each ground cutter, and screwing the cushion covers by using M8 bolts; after the installation, power-assisted springs are installed at the left end and the right end of the underframe, and flexible connection is installed on the underframe; then, the main cutter shaft and the ground cutter shaft are respectively provided with a crank arm in sequence, and two ends of the elbow are respectively connected with the two crank arms through pins, so that the main ground cutter is switched on and switched off; the interlocking relation of the main knife opening and the ground knife closing; after the installation, the operation handle is used for operating, and the main cutter and the ground cutter are separated and combined; and installing an auxiliary switch after all the auxiliary switches are in place, and debugging.
2. The high-voltage isolating switch as claimed in claim 1, wherein the double-rotating-shaft common switch underframe and the contact switch on-off position are limited by two stop gear positions on the rotating shaft.
3. The high-voltage isolating switch as claimed in claim 2, wherein 6 post insulators are respectively installed on the bottom frame of the flush-mounted switch, 3 pull rod insulators are respectively connected to the small crank arms of the main rotating shaft, 3 cross-shaped or inverted-T-shaped contact seats and 3 inverted-T-shaped or cross-shaped contacts are respectively installed on the post insulators, 3 pairs of grounding blades are respectively installed on the contact seats, the contact blades are connected to the pull rod insulators, and 3 pairs of blades are respectively installed on the sub rotating shaft after a bus bar is installed on the sub rotating shaft.
4. The high voltage isolation switch of claim 2, wherein 3 post insulators and 3 wall bushing are respectively installed on the chassis of the wall bushing switch, 1 pull rod insulator is respectively connected to the small crank arm of the main shaft, 3 conductive bars are installed in the bushing, 3 contacts are respectively installed on the post insulators, 3 pairs of blades and blades are connected to the conductive bars and connected to the pull rod insulators, a bus bar is installed on the auxiliary shaft, and 3 pairs of grounding blades are respectively installed on the auxiliary shaft.
5. The high voltage isolator of claim 1, wherein said first outdoor high voltage isolator includes a base, a post insulator, a conductive portion and a manual actuator;
the conductive part comprises a conductive rod and a conductive seat, and the conductive rod is connected with the conductive seat through flexible connection.
6. The high voltage isolator of claim 1, wherein said second outdoor high voltage isolator is comprised of three monopoles, each monopole being secured to a base by two rod-like post insulators, each at a 50 ° intersection.
7. The high voltage isolator of claim 6, wherein each single pole is comprised of four sections, a conductive section, a post insulator, a base, and a manual actuator.
8. A method for isolating a power supply, characterized in that the method for isolating a power supply uses a high-voltage isolating switch according to any one of claims 1 to 7 to disconnect a high-voltage service device from a live device with a disconnection point therebetween.
9. A method for matching a disconnecting switch and a circuit breaker is characterized in that the high-voltage disconnecting switch of any one of claims 1 to 7 is used for switching according to the requirement of a system operation mode so as to change the system operation wiring mode.
10. A small current switching-on or switching-off circuit, characterized in that the high-voltage isolating switch of any one of claims 1-7 is used for switching on or switching off the small current circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110521138.6A CN113257610A (en) | 2021-05-13 | 2021-05-13 | High-voltage isolating switch, method for isolating power supply and application |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110521138.6A CN113257610A (en) | 2021-05-13 | 2021-05-13 | High-voltage isolating switch, method for isolating power supply and application |
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| CN113257610A true CN113257610A (en) | 2021-08-13 |
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| CN202110521138.6A Pending CN113257610A (en) | 2021-05-13 | 2021-05-13 | High-voltage isolating switch, method for isolating power supply and application |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113097004A (en) * | 2021-05-12 | 2021-07-09 | 国网河北省电力有限公司晋州市供电分公司 | Residual electricity discharging device of high-voltage isolating switch |
| CN115273642A (en) * | 2022-07-25 | 2022-11-01 | 山东泰开隔离开关有限公司 | Portable isolator teaching overhauls device |
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| CN2777733Y (en) * | 2005-01-22 | 2006-05-03 | 浙江纪元高压电器开关有限公司 | Indoor high-voltage isolation switch |
| CN201038039Y (en) * | 2007-04-17 | 2008-03-19 | 仪征市电瓷电器有限责任公司 | Separation switch transmission device with earthing switch |
| CN201112253Y (en) * | 2007-09-14 | 2008-09-10 | 山东泰开隔离开关有限公司 | Double-column V-shaped outdoor three-phase AC high-voltage isolating switch of self-operated sensing finger structure |
| CN201886956U (en) * | 2010-12-23 | 2011-06-29 | 川铁电气（天津）集团有限公司 | Indoor alternating-current high-voltage isolation switch |
| CN104078267A (en) * | 2014-07-04 | 2014-10-01 | 句容华源电器设备有限公司 | Three-position, single-spring and double-shaft manual operation mechanism of high voltage isolator |
| CN204966369U (en) * | 2015-09-09 | 2016-01-13 | 山东泰开智能配电有限公司 | Outdoor high voltage isolator of GW1 |
| CN209169037U (en) * | 2018-08-03 | 2019-07-26 | 石首市首岳电气科技有限公司 | A kind of bis- station high-voltage isolation grounding switch of 10kV of miniaturization |
| CN208903907U (en) * | 2018-11-06 | 2019-05-24 | 湖北湖开电气有限公司 | A kind of earthing switch with ground connection operating mechanism |
| CN210325620U (en) * | 2019-10-12 | 2020-04-14 | 山东泰开智能配电有限公司 | Outdoor high-voltage isolating switch |
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| CN113097004A (en) * | 2021-05-12 | 2021-07-09 | 国网河北省电力有限公司晋州市供电分公司 | Residual electricity discharging device of high-voltage isolating switch |
| CN115273642A (en) * | 2022-07-25 | 2022-11-01 | 山东泰开隔离开关有限公司 | Portable isolator teaching overhauls device |
| CN115273642B (en) * | 2022-07-25 | 2024-01-26 | 山东泰开隔离开关有限公司 | Portable isolator teaching overhauls device |
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Application publication date: 20210813 |