CN111129972A - Anti-misoperation locking device for high-voltage cabinet door of box-type substation - Google Patents
Anti-misoperation locking device for high-voltage cabinet door of box-type substation Download PDFInfo
- Publication number
- CN111129972A CN111129972A CN201911398792.1A CN201911398792A CN111129972A CN 111129972 A CN111129972 A CN 111129972A CN 201911398792 A CN201911398792 A CN 201911398792A CN 111129972 A CN111129972 A CN 111129972A
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- China
- Prior art keywords
- voltage
- cabinet
- auxiliary contact
- switch
- electrically connected
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B47/0001—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
- E05B47/0002—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with electromagnets
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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
- H01H33/02—Details
- H01H33/46—Interlocking mechanisms
-
- 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
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/015—Boards, panels, desks; Parts thereof or accessories therefor
- H02B1/04—Mounting thereon of switches or of other devices in general, the switch or device having, or being without, casing
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/20—Bus-bar or other wiring layouts, e.g. in cubicles, in switchyards
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Gas-Insulated Switchgears (AREA)
- Patch Boards (AREA)
Abstract
The invention discloses a high-voltage cabinet door anti-misoperation locking device of a box-type substation, which comprises: the high-voltage switch cabinet comprises a switch cabinet terminal strip, a high-voltage vacuum load switch and a high-voltage switch auxiliary contact; the high-voltage metering cabinet comprises a metering device, a metering cabinet terminal row, a charged sensor and a GSN charged display; the high-voltage cabinet door comprises a DSN electromagnetic lock; the high-voltage incoming cabinet comprises an incoming cabinet terminal row; controlling a power supply; the high-voltage switch auxiliary contact is electrically connected with the switch of the high-voltage incoming line cabinet and the control power supply through the switch cabinet terminal row respectively; the high-voltage vacuum load switch is electrically connected with the high-voltage incoming cabinet through the incoming cabinet terminal row, and the high-voltage incoming cabinet is electrically connected with the high-voltage metering cabinet through the incoming cabinet terminal row.
Description
Technical Field
The invention relates to the technical field of power supply safety devices, in particular to a misoperation-preventive locking device for a high-voltage cabinet door of a box-type substation.
Background
When a 10kV cable is electrified, the high-voltage isolation disconnecting link closing high-voltage switch operates after switching on, the metering high-voltage chamber door cannot be opened, the high-voltage isolation disconnecting link is pulled open, the metering high-voltage chamber door can be opened under the condition of power failure, and the safety measures can be taken to perform inspection and maintenance.
The 10kV high-tension cabinet door that present scene adopted adopts the closed cabinet door of metal more, except that KYN dolly cabinet 10kV feeder cubical switchboard possesses ground connection switch and back cabinet door mechanical interlocking function, can only be under the condition that ground connection switch closed promptly, just can open the back cabinet door, the cabinet door all is fixed only to adopt simple hexagonal bolt behind all the other cubical switchboard, no matter whether there is live equipment in the cabinet, the maintainer if under the condition of knowing, only need use interior hexagonal spanner, just can twist out the cabinet door as convenient. And single mechanical lock is fragile, uses easy old and weak for a long time to lose protect function, there is very big potential safety hazard.
In addition, the mechanical locking device adopted on site mostly has no unlocking function, the closed switch cabinet cannot realize electricity testing grounding, the power failure unlocking function cannot be flexibly realized, and the function of preventing mistaken switch switching is also not provided; this is inconvenient for operating personnel to overhaul, and probably also causes circuit fault because of the maloperation switch.
Disclosure of Invention
The invention aims to provide an anti-misoperation locking device for a high-voltage cabinet door of a box-type substation, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: anti-misoperation locking device for high-voltage cabinet door of box-type substation comprises: the high-voltage switch cabinet comprises a switch cabinet terminal strip, a high-voltage vacuum load switch and a high-voltage switch auxiliary contact; the high-voltage metering cabinet comprises a metering device, a metering cabinet terminal row, a charged sensor and a GSN charged display; the high-voltage cabinet door comprises a DSN electromagnetic lock; the high-voltage incoming cabinet comprises an incoming cabinet terminal row; controlling a power supply; the high-voltage switch auxiliary contact is electrically connected with the switch of the high-voltage incoming line cabinet and the control power supply through the switch cabinet terminal row respectively; the high-voltage vacuum load switch is electrically connected with the high-voltage incoming cabinet through the incoming cabinet terminal row, and the high-voltage incoming cabinet is electrically connected with the high-voltage metering cabinet through the incoming cabinet terminal row; the high-voltage metering cabinet is electrically connected with the switch of the high-voltage incoming cabinet and the control power supply through the metering cabinet terminal row respectively; GSN electrified display pass through the measurement cabinet terminal row with high-voltage measurement cabinet electric connection, DSN electromagnetic lock electric connection GSN electrified display with on the circuit between the high-voltage measurement cabinet.
Wherein, still include: the high-voltage incoming cabinet circuit breaker auxiliary contact is arranged on a circuit between the high-voltage switch cabinet and the GSN electrified display.
Wherein, still include: the fuse, the fuse with high-pressure inlet wire cabinet circuit breaker auxiliary contact electric connection.
The load switch is electrically connected with two auxiliary contacts 1D-1/871 and 1D-2/873 of the switch cabinet terminal block respectively.
The GSN electrified display is provided with K1, K2, a, b, c and PE auxiliary contacts, the a, b and c auxiliary contacts are electrically connected with the electrified sensor, the K1 auxiliary contact is electrically connected with the 2D-6/873 auxiliary contact of the metering cabinet terminal row, the K2 auxiliary contact is electrically connected with the 1 auxiliary contact of the DSN electromagnetic lock, and the PE auxiliary contact is used for grounding.
The auxiliary contact 1 of the DSN electromagnetic lock is electrically connected with the auxiliary contact K2 of the GSN electrified display, and the auxiliary contact 2 of the DSN electromagnetic lock is electrically connected with the auxiliary contact FU2-2/872 of the metering cabinet terminal row.
Compared with the prior art, the invention has the beneficial effects that:
1. the terminal rows of the high-voltage metering cabinet are in transitional connection, so that the wiring distance is shortest, wires are saved, and the economical efficiency of design is ensured; meanwhile, the connection mode can ensure safe and reliable connection, the problems of unstable connection, loose connection, even disconnection of a connecting wire and the like caused by direct connection to a main loop of the electromagnetic locking device are avoided, and the safety and reliability of design are ensured.
2. The invention protects the high-voltage cabinet door by a combined double protection mechanism formed by the electromagnetic locking device and the series auxiliary contacts, can effectively avoid casualties of workers caused by mistakenly opening the electrified high-voltage cabinet door in the operation process, can reduce the probability of personal casualty accidents and ensures the safety of the workers; meanwhile, the high-voltage cabinet door cannot be opened when electrified, personal safety of people such as nearby residents is guaranteed, and electric shock accidents are prevented.
Drawings
FIG. 1 is a schematic diagram of the connection of the auxiliary contacts of the high voltage switch according to the present invention;
FIG. 2 is a schematic diagram of the auxiliary contact selection of the high voltage switch of the present invention;
FIG. 3 is an electrical wiring diagram of the high-voltage inlet cabinet of the present invention;
FIG. 4 is an electrical wiring diagram of the high-voltage metering cabinet of the present invention;
fig. 5 is an electrical schematic diagram of the anti-misoperation locking device for the high-voltage cabinet door of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution: anti-misoperation locking device for high-voltage cabinet door of box-type substation comprises: the high-voltage switch cabinet, the high-voltage metering cabinet, the high-voltage cabinet door, the high-voltage incoming cabinet and the control power supply.
The high-voltage switch cabinet comprises a switch cabinet terminal strip, a high-voltage vacuum load switch and a high-voltage switch auxiliary contact.
The high-voltage metering cabinet comprises a metering device, a metering cabinet terminal row, a charged sensor and a GSN charged display.
Wherein, the high-voltage cabinet door includes DSN electromagnetic lock.
The high-voltage incoming cabinet comprises an incoming cabinet terminal row.
The high-voltage switch auxiliary contact is electrically connected with the switch of the high-voltage incoming line cabinet and the control power supply through the switch cabinet terminal row respectively;
the high-voltage vacuum load switch is electrically connected with the high-voltage incoming cabinet through the incoming cabinet terminal row, and the high-voltage incoming cabinet is electrically connected with the high-voltage metering cabinet through the incoming cabinet terminal row;
the high-voltage metering cabinet is electrically connected with the switch of the high-voltage incoming cabinet and the control power supply through the metering cabinet terminal row respectively;
the GSN electrified display is electrically connected with the high-voltage metering cabinet through the metering cabinet terminal row, and the DSN electromagnetic lock is electrically connected with a circuit between the GSN electrified display and the high-voltage metering cabinet.
Wherein, still include: the high-voltage incoming cabinet circuit breaker auxiliary contact is arranged on a circuit between the high-voltage switch cabinet and the GSN electrified display.
Wherein, still include: the fuse, the fuse with high-pressure inlet wire cabinet circuit breaker auxiliary contact electric connection.
The high-voltage switch auxiliary contact is led out from the pair of auxiliary contacts 871 and 873 on the terminal row below the high-voltage switch cabinet load switch and fuse combiner through a lead, and led to the terminal row of the high-voltage metering cabinet, and the terminal row of the metering cabinet is used as a transition and is connected into a control loop of the DSN electromagnetic lock from the terminal row of the metering cabinet, so that the high-voltage switch auxiliary contact is connected into the control loop of the DSN electromagnetic lock in series.
The terminal rows of the high-voltage metering cabinet are in transitional connection, so that the wiring distance is shortest, wires are saved, and the design economy is ensured; meanwhile, the connection mode can ensure safe and reliable connection, the problems of unstable connection, loose connection, even disconnection of a connecting wire and the like caused by direct connection to a main loop of the DSN electromagnetic lock are avoided, and the safety and reliability of design are ensured.
The load switch is electrically connected with two auxiliary contacts 1D-1/871 and 1D-2/873 of the switch cabinet terminal block respectively.
The GSN electrified display is provided with K1, K2, a, b, c and PE auxiliary contacts, the a, b and c auxiliary contacts are electrically connected with the electrified sensor, the K1 auxiliary contact is electrically connected with the 2D-6/873 auxiliary contact of the metering cabinet terminal row, the K2 auxiliary contact is electrically connected with the 1 auxiliary contact of the DSN electromagnetic lock, and the PE auxiliary contact is used for grounding.
The auxiliary contact 1 of the DSN electromagnetic lock is electrically connected with the auxiliary contact K2 of the GSN electrified display, and the auxiliary contact 2 of the DSN electromagnetic lock is electrically connected with the auxiliary contact FU2-2/872 of the metering cabinet terminal row.
Wherein, being in the power failure state when the high-pressure chamber, allowing to open the high-voltage board door, at this moment, pressing the DSN electromagnetic lock button of high tension switchgear, the control circuit of DSN electromagnetic lock switches on, and the actuation of DSN electromagnetic lock produces sufficient electromagnetic suction, will control the bolt and extract from high-voltage board door bolt, later rotates high-voltage board door handle, can open the cabinet door.
Wherein, when electrified in the high tension switchgear, the high voltage live sensor through the DSN electromagnetic lock gives the electrified display of GSN with electrified information transfer, and the node in the electrified display of GSN does not actuation, and the unable operating condition that gets into of DSN electromagnetic lock leads to the unable extraction of control bolt, even rotate high-voltage cabinet door handle and also can't open the cabinet door to realize electrified shutting function.
The high-voltage switch auxiliary contact is connected to a control circuit of a DSN electromagnetic lock of a high-voltage cabinet door, when the high-voltage cabinet door is electrified, the auxiliary contact is disconnected, the control circuit of the DSN electromagnetic lock cannot be conducted, the DSN electromagnetic lock cannot act, meanwhile, electrified information is transmitted to a GSN electrified display through a high-voltage electrified sensor, nodes in the GSN electrified display are not attracted, the DSN electromagnetic lock cannot enter a working state, a control bolt cannot be pulled out, the cabinet door cannot be opened even if a handle of the high-voltage cabinet door is rotated, and therefore an electrified locking function is achieved; the access of auxiliary contact is in order to form dual protection with the DSN electromagnetic lock of high-voltage cabinet door, prevents only under single electromagnetism shutting effect, and high-voltage cabinet door is opened under the electrified condition, has guaranteed the safety of the person, equipment and electric wire netting.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. Anti-misoperation locking device for high-voltage cabinet door of box-type substation, comprising:
the high-voltage switch cabinet comprises a switch cabinet terminal strip, a high-voltage vacuum load switch and a high-voltage switch auxiliary contact;
the high-voltage metering cabinet comprises a metering device, a metering cabinet terminal row, a charged sensor and a GSN charged display;
the high-voltage cabinet door comprises a DSN electromagnetic lock;
the high-voltage incoming cabinet comprises an incoming cabinet terminal row;
controlling a power supply;
the high-voltage switch auxiliary contact is electrically connected with the switch of the high-voltage incoming line cabinet and the control power supply through the switch cabinet terminal row respectively;
the high-voltage vacuum load switch is electrically connected with the high-voltage incoming cabinet through the incoming cabinet terminal row, and the high-voltage incoming cabinet is electrically connected with the high-voltage metering cabinet through the incoming cabinet terminal row;
the high-voltage metering cabinet is electrically connected with the switch of the high-voltage incoming cabinet and the control power supply through the metering cabinet terminal row respectively;
the GSN electrified display is electrically connected with the high-voltage metering cabinet through the metering cabinet terminal row, and the DSN electromagnetic lock is electrically connected with a circuit between the GSN electrified display and the high-voltage metering cabinet.
2. The anti-misoperation locking device for the high-voltage cabinet door of the box-type substation of claim 1, further comprising:
the high-voltage incoming cabinet circuit breaker auxiliary contact is arranged on a circuit between the high-voltage switch cabinet and the GSN electrified display.
3. The anti-misoperation locking device for the high-voltage cabinet door of the box-type substation according to claim 2, further comprising:
the fuse, the fuse with high-pressure inlet wire cabinet circuit breaker auxiliary contact electric connection.
4. The anti-misoperation locking device for the high-voltage cabinet door of the box-type substation according to claim 1, comprising:
the load switch is electrically connected with two auxiliary contacts 1D-1/871 and 1D-2/873 of the switch cabinet terminal block respectively.
5. The anti-misoperation locking device for the high-voltage cabinet door of the box-type substation according to claim 1, comprising:
GSN electrified display is provided with K1, K2, a, b, c, PE auxiliary contact, a, b, c auxiliary contact with electrified sensor electric connection, K1 auxiliary contact with the 2D-6/873 auxiliary contact electric connection of measurement cabinet terminal row, K2 auxiliary contact with 1 auxiliary contact electric connection of DSN electromagnetic lock, PE auxiliary contact is used for ground connection.
6. The anti-misoperation locking device for the high-voltage cabinet door of the box-type substation according to claim 1, comprising:
the auxiliary contact 1 of the DSN electromagnetic lock is electrically connected with the auxiliary contact K2 of the GSN electrified display, and the auxiliary contact 2 of the DSN electromagnetic lock is electrically connected with the auxiliary contact FU2-2/872 of the metering cabinet terminal row.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911398792.1A CN111129972B (en) | 2019-12-30 | 2019-12-30 | Anti-misoperation locking device for high-voltage cabinet door of box-type substation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911398792.1A CN111129972B (en) | 2019-12-30 | 2019-12-30 | Anti-misoperation locking device for high-voltage cabinet door of box-type substation |
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| Publication Number | Publication Date |
|---|---|
| CN111129972A true CN111129972A (en) | 2020-05-08 |
| CN111129972B CN111129972B (en) | 2021-11-23 |
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| CN201911398792.1A Active CN111129972B (en) | 2019-12-30 | 2019-12-30 | Anti-misoperation locking device for high-voltage cabinet door of box-type substation |
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Citations (13)
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| EP3422502A1 (en) * | 2017-06-28 | 2019-01-02 | ABB Schweiz AG | Substation for medium or high voltage, containing switchgear or controlgear with unmanned operation and maintenance |
| CN109272706A (en) * | 2017-07-18 | 2019-01-25 | 云南电网有限责任公司教育培训评价中心 | The warning device at high-tension switch cabinet electrification interval |
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| CN202534963U (en) * | 2012-01-30 | 2012-11-14 | 乐山晟嘉电气有限公司 | Structure preventing incorrect operation of high-voltage metering handcart |
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| Publication number | Publication date |
|---|---|
| CN111129972B (en) | 2021-11-23 |
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