CN116525344A - High-reliability misoperation-preventing grounding switch and electrified installation method - Google Patents
High-reliability misoperation-preventing grounding switch and electrified installation method Download PDFInfo
- Publication number
- CN116525344A CN116525344A CN202210082479.2A CN202210082479A CN116525344A CN 116525344 A CN116525344 A CN 116525344A CN 202210082479 A CN202210082479 A CN 202210082479A CN 116525344 A CN116525344 A CN 116525344A
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- China
- Prior art keywords
- live
- grounding switch
- grounding
- electrified
- misoperation
- Prior art date
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- Pending
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- 238000009434 installation Methods 0.000 title claims abstract description 13
- 238000000034 method Methods 0.000 title claims description 7
- 230000007246 mechanism Effects 0.000 claims abstract description 41
- 239000012212 insulator Substances 0.000 claims abstract description 31
- 238000002955 isolation Methods 0.000 claims abstract description 10
- 239000003990 capacitor Substances 0.000 claims abstract description 9
- 238000004146 energy storage Methods 0.000 claims abstract description 7
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims abstract description 5
- 230000003068 static effect Effects 0.000 claims description 6
- 239000003638 chemical reducing agent Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 abstract description 9
- 230000001012 protector Effects 0.000 abstract description 6
- 230000000007 visual effect Effects 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
Classifications
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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
- H01H31/003—Earthing switches
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/26—Power arrangements internal to the switch for operating the driving mechanism using dynamo-electric motor
-
- 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
-
- 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
- H01H31/12—Adaptation for built-in fuse
- H01H31/122—Fuses mounted on, or constituting the movable contact parts of, the switch
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/16—Indicators for switching condition, e.g. "on" or "off"
- H01H9/161—Indicators for switching condition, e.g. "on" or "off" comprising light emitting elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/54—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
- H01R11/12—End pieces terminating in an eye, hook, or fork
- H01R11/14—End pieces terminating in an eye, hook, or fork the hook being adapted for hanging on overhead or other suspended lines, e.g. hot line clamp
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
A high-reliability misoperation-preventing grounding switch comprises a bracket, a post insulator, a fixed contact, a moving contact, an energy storage spring, an electric operating mechanism, a manual operating mechanism, a live-wire warning device, a locking mechanism, a lead wire, a grounding hanging ring and a live-wire operation wire clamp. The post insulator is internally provided with the fuse, the high-voltage capacitor, the isolation transformer, the overvoltage protector, the charge indicator and the voltage output terminal, so that the post insulator is simultaneously provided with fault isolation, charge indication and high-voltage electricity taking functions, the size of the grounding switch can be effectively reduced, the weight of the grounding switch is reduced, and the installation and the use on a pole tower are facilitated. The grounding switch can give out audible and visual alarm under the condition of line electrification, and misoperation is prevented. Meanwhile, the grounding switch can be mechanically locked under the condition that any phase of loop is electrified, and misoperation is prevented.
Description
Technical Field
The invention belongs to the technical field of power equipment, relates to a high-reliability misoperation-preventing grounding switch, and further discloses a live installation method based on the grounding switch.
Background
The grounding switch is widely applied to places such as power stations, transformer substations, switch cabinets and the like, and is a mechanical grounding device capable of releasing static electricity of equipment and circuits to be overhauled, ensuring reliable grounding of the overhauled circuits, forcedly clamping the potential of the overhauled circuits to zero potential, and further ensuring personal safety of workers during power failure overhauling. When equipment is overhauled, power failure is executed, electricity is tested, a grounding switch is closed, a fence is installed, overhauling work can be carried out after a signboard is installed, and because a power station and a transformer substation are arranged, switch cabinet operators are professionals, and the power station and the transformer substation are in a relatively closed management state, no staff can enter, and the risk of privately operating the grounding switch is not possessed, so that the grounding switch is applied in a large quantity. The power transmission and distribution lines are all outdoor, belong to non-closed states, and especially the distribution network lines are closer to residential areas, do not have the condition of installing a grounding switch, when line maintenance is carried out, workers are protected by adopting a mode of hanging grounding wires on the lines at present, the grounding wires need to climb to the tops of pole towers, after electricity inspection, the grounding wires are manually assembled and disassembled, high falling risk is high, working efficiency is low, and safety accidents such as pole tower number checking, electricity inspection, personnel electric shock, and ground wire mistakenly hanging exist because the workers do not check the pole tower number according to regulations. The invention provides a high-reliability misoperation-preventing grounding switch which is small in size, light in weight and suitable for the field of power transmission and distribution and a live installation method.
Disclosure of Invention
The utility model provides a high reliable maloperation earthing switch of preventing, includes support, pillar insulator, static contact, moving contact, energy storage spring, electric operating mechanism, manual operating mechanism, electrified attention ware, locking mechanism, lead wire, ground link, live working fastener, its characterized in that: the live-line warning device is characterized in that the live-line warning device is arranged at the bottom of the support, fuses, high-voltage capacitors, isolation transformers, overvoltage protectors, live-line detectors and voltage output terminals are arranged inside the three post insulators, the locking mechanism consists of an OR gate circuit and a locking actuator, the electric operating mechanism consists of a sealed shell, a controller, a motor, a speed reducer, a clutch and an output gear, one end of a lead is arranged on a static contact, a grounding hanging ring is arranged on the lead, and a live-line work wire clamp is arranged at the other end of the lead.
The fuse, the high-voltage capacitor, the isolation transformer, the overvoltage protector, the charge indicator and the voltage output terminal are all installed inside the three post insulators, so that the post insulators have fault isolation, charge indication and high-voltage electricity taking functions, the size of the grounding switch can be effectively reduced, the weight of the grounding switch is reduced, and the installation and the use on a pole tower are facilitated. Meanwhile, the three post insulators are internally provided with the electrification indicating device, so that an audible and visual alarm can be sent out under the electrification condition of the lines, operators can be reminded of whether the lines are electrified, and misoperation is effectively prevented. The high-voltage capacitor is adopted to obtain electricity, and compared with the traditional electromagnetic transformer, the electromagnetic transformer has the characteristics of small volume, light weight, no electromagnetic resonance, high reliability and the like. The fuse can be quickly fused when faults occur, fault points are isolated, and normal operation of the circuit is not affected.
The three post insulators voltage output terminals are connected to the OR gate controller, the OR gate controller is connected with the locking actuator, the grounding switch is mechanically locked under the condition that any phase of loop is electrified, misoperation is prevented, compared with the existing locking mechanism, the reliability can be improved by 3 times, and meanwhile, the locking device is not provided with any unlocking device. Three sets of independent locking mechanisms can be adopted to ensure that the grounding switch is mechanically locked under the condition that any phase of loop is electrified, so that misoperation is prevented.
The electric operating mechanism is arranged in a sealed shell, and the output gear is connected with the grounding switch in a separated mode, so that the electric operating mechanism can adapt to outdoor humid, dirty and other severe environments, and the reliability of the electric operating mechanism is improved.
The staff can adopt insulating action bars to operate manual operating mechanism on ground and break-in earthing switch, improves earthing switch adaptability. The ground switch can be operated on site or remotely through the electric operating mechanism, so that the efficiency is improved.
The grounding hanging ring is arranged in the middle of the lead, and the live working wire clamp is arranged at the tail end of the lead.
The electrified installation method adopted by the invention is characterized by comprising the following installation steps: the first step, an insulating baffle is arranged on a pole tower of a live line, and a grounding switch and a mounting bracket are arranged below the baffle; the second step of removing the insulating baffle plate, and the third step of adopting an insulating operating rod to install the live working wire clamp on a live line or a primary test electric grounding hanging ring of the live line; the dismantling step is as follows: the first step of dismantling the live working wire clamp by using an insulating rod, the second step of installing an insulating baffle plate, and the third step of dismantling a grounding switch and an installing support; and fourthly, removing the insulating baffle.
Drawings
Embodiments of the present invention are further described below with reference to the accompanying drawings.
Fig. 1 is a schematic diagram of a grounding switch according to the present invention.
Fig. 2 is a schematic view of the internal connection of the post insulator according to the present invention.
Fig. 3 is a schematic view of an electric operating mechanism.
Fig. 4 is a schematic view of the latching mechanism.
Fig. 5 is another schematic view of a latching mechanism.
Fig. 6 is a schematic diagram of the installation completion of the grounding switch.
List of reference numerals:
1. the device comprises a bracket, a post insulator, a fixed contact, a movable contact, an energy storage spring, a manual operation mechanism, an electric operation mechanism, a locking mechanism, a charged warning device, a lead wire, a grounding hanging ring, a live working wire clamp, a fuse and a fuse, wherein the bracket is arranged on the bracket, the post insulator is arranged on the bracket, the fixed contact is arranged on the post insulator, the movable contact is arranged on the post insulator, the energy storage spring is arranged on the post insulator, the fixed contact is arranged on the post insulator, the manual operation mechanism is arranged on the post insulator, the energy storage spring is arranged on the post insulator, the manual operation mechanism is arranged on the post insulator, the electric operation mechanism is arranged on the post insulator, the post insulator is arranged on the post insulator, the post 22, capacitor, 23, isolation transformer, 24, overvoltage protector, 25, live detector, 26, output terminal, 31, housing, 32, controller, 33, motor, 34, decelerator, 35, clutch, 36, output gear, 41, or gate controller, 42, lockout actuator
Detailed Description
Referring now to the drawings, illustrative aspects of the disclosed grounding switch are described in detail. Although providing an attachment
The drawings are intended to depict embodiments of the invention, but are not necessarily drawn to scale and
certain features may be enlarged, removed, or partially sectioned to better illustrate and explain the present disclosure. Parts in the drawings
The components can be subjected to position adjustment according to actual requirements on the premise of not affecting the technical effect. Phrases appearing in the specification
"in the drawings" or the like does not necessarily refer to all of the drawings or examples.
Certain directional terms, such as "front", "rear", "inner", "outer", "upper", are used hereinafter to describe the drawings
Square, below, and other directional terms will be understood to have their normal meaning and refer to those terms when viewed normally in the drawings
Those directions. Unless otherwise indicated, the directional terms described in this specification are essentially according to conventional terms as understood by those skilled in the art
Direction.
The terms "first," "second," and the like, as used herein, are not intended to be limiting in this disclosure
Any order, quantity, or importance is represented and is used to distinguish one element from another element.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described below with reference to the accompanying drawings
The present invention will be described in further detail with reference to examples.
The utility model provides a high reliable maloperation earthing switch of preventing, includes support, pillar insulator, static contact, moving contact, energy storage spring, electric operating mechanism, manual operating mechanism, electrified attention ware, locking mechanism, lead wire, ground link, live working fastener, its characterized in that: the live-line warning device is characterized in that the live-line warning device is arranged at the bottom of the support, fuses, high-voltage capacitors, isolation transformers, overvoltage protectors, live-line detectors and voltage output terminals are arranged inside the three post insulators, the locking mechanism consists of an OR gate circuit and a locking actuator, the electric operating mechanism consists of a sealed shell, a controller, a motor, a speed reducer, a clutch and an output gear, one end of a lead is arranged on a static contact, a grounding hanging ring is arranged on the lead, and a live-line work wire clamp is arranged at the other end of the lead. The fuse, the high-voltage capacitor, the isolation transformer, the overvoltage protector, the charge indicator and the voltage output terminal are all installed inside the three post insulators, so that the post insulators have fault isolation, charge indication and high-voltage electricity taking functions, the size of the grounding switch can be effectively reduced, the weight of the grounding switch is reduced, and the installation and the use on a pole tower are facilitated. Meanwhile, the three post insulators are internally provided with the electrification indicating device, so that an audible and visual alarm can be sent out under the electrification condition of the lines, operators can be reminded of whether the lines are electrified, and misoperation is effectively prevented. The high-voltage capacitor is adopted to obtain electricity, and compared with the traditional electromagnetic transformer, the electromagnetic transformer has the characteristics of small volume, light weight, no electromagnetic resonance, high reliability and the like. The fuse can be quickly fused when faults occur, fault points are isolated, and normal operation of the circuit is not affected. The three post insulators voltage output terminals are connected to the OR gate controller, the OR gate controller is connected with the locking actuator, the grounding switch is mechanically locked under the condition that any phase of loop is electrified, misoperation is prevented, compared with the existing locking mechanism, the reliability can be improved by 3 times, and meanwhile, the locking device is not provided with any unlocking device. Three sets of independent locking mechanisms can be adopted to ensure that the grounding switch is mechanically locked under the condition that any phase of loop is electrified, so that misoperation is prevented. The electric operating mechanism is arranged in a sealed shell, and the output gear is connected with the grounding switch in a separated mode, so that the electric operating mechanism can adapt to outdoor humid, dirty and other severe environments, and the reliability of the electric operating mechanism is improved. The staff can adopt insulating action bars to operate manual operating mechanism on ground and break-in earthing switch, improves earthing switch adaptability. The ground switch can be operated on site or remotely through the electric operating mechanism, so that the efficiency is improved. The grounding hanging ring is arranged in the middle of the lead, and the live working wire clamp is arranged at the tail end of the lead.
Claims (7)
1. The utility model provides a high reliable maloperation earthing switch and electrified installation method, includes support, pillar insulator, static contact, moving contact, energy storage spring, electric operating mechanism, manual operating mechanism, electrified attention device, locking mechanism, lead wire, ground link, live working fastener, its characterized in that installs electrified attention device in the support bottom three pillar insulator inside all installs the fuse, high-voltage capacitor, isolation transformer, overvoltage protection ware, electrified detector, voltage output terminal, locking mechanism comprises OR gate controller, locking executor.
2. The post insulator of claim 1, wherein the voltage output terminal is connected to an or gate controller, the or gate controller being connected to a lockout actuator.
3. The electric operating mechanism of claim 1, consisting of a sealed housing, a controller, a motor, a speed reducer, a clutch, and an output gear.
4. The wire of claim 1, wherein the live wire clamp is mounted on the stationary contact at one end and the live wire clamp is mounted on the other end of the wire.
5. The grounding strap of claim 1 mounted on a lead.
6. The live detector of claim 1 connected to a live alarm.
7. The invention also discloses a live installation method based on the grounding switch, which is characterized by comprising the following installation steps: the first step, an insulating baffle is arranged on a pole tower of a live line, and a grounding switch and a mounting bracket are arranged below the baffle; the second step of removing the insulating baffle plate, and the third step of adopting an insulating operating rod to install the live working wire clamp on a live line or a primary test electric grounding hanging ring of the live line; the dismantling step is as follows: the first step of dismantling the live working wire clamp by using an insulating rod, the second step of installing an insulating baffle, the third step of dismantling a grounding switch and an installing support, and the fourth step of dismantling the insulating baffle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210082479.2A CN116525344A (en) | 2022-01-24 | 2022-01-24 | High-reliability misoperation-preventing grounding switch and electrified installation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210082479.2A CN116525344A (en) | 2022-01-24 | 2022-01-24 | High-reliability misoperation-preventing grounding switch and electrified installation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116525344A true CN116525344A (en) | 2023-08-01 |
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ID=87399896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210082479.2A Pending CN116525344A (en) | 2022-01-24 | 2022-01-24 | High-reliability misoperation-preventing grounding switch and electrified installation method |
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| CN (1) | CN116525344A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117038374A (en) * | 2023-09-28 | 2023-11-10 | 广东米勒电气有限公司 | Double-station grounding switch with function of rapidly closing short-circuit fault current |
-
2022
- 2022-01-24 CN CN202210082479.2A patent/CN116525344A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117038374A (en) * | 2023-09-28 | 2023-11-10 | 广东米勒电气有限公司 | Double-station grounding switch with function of rapidly closing short-circuit fault current |
| CN117038374B (en) * | 2023-09-28 | 2023-12-08 | 广东米勒电气有限公司 | Double-station grounding switch with function of rapidly closing short-circuit fault current |
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