CN206991977U - A kind of blocking device for preventing power transformation operation back brake maloperation - Google Patents
A kind of blocking device for preventing power transformation operation back brake maloperation Download PDFInfo
- Publication number
- CN206991977U CN206991977U CN201720956700.7U CN201720956700U CN206991977U CN 206991977 U CN206991977 U CN 206991977U CN 201720956700 U CN201720956700 U CN 201720956700U CN 206991977 U CN206991977 U CN 206991977U
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- China
- Prior art keywords
- micro computer
- controller
- fixedly connected
- current sensor
- grounding switch
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model discloses a kind of blocking device for preventing power transformation operation back brake maloperation,Belong to fool proof blocking device field,A kind of blocking device for preventing power transformation operation back brake maloperation,Including housing,Grounding switch and cabinet door,The grounding switch is fixedly connected on housing,Display is fixedly connected with above the housing,The display lower left is connected with micro computer by signal wire,Controller is connected with by signal wire below the micro computer,The controller right is connected with grounding switch by earth cable,The controller is located at the left side of grounding switch,The micro computer is connected with the first current sensor and the second current sensor by signal wire,First current sensor is fixedly connected on breaker cable,Second current sensor is fixedly connected on isolation cable,The micro computer right is electrically connected with power lead,It, which can be realized, prevents back brake maloperation,It is safe.
Description
Technical field
Fool proof blocking device field is the utility model is related to, power transformation operation is prevented more specifically to one kind
The blocking device of back brake maloperation.
Background technology
Numerous transformers are installed, these equipment are fitted with greatly grounding switch, to make in transformer in transformer station
The residual charge in transformer can be imported after in substation grounding power network, prevent the remnants electricity in transformer
Lotus or induced electricity are hurted sb.'s feelings the generation of event.
Electrical equipment is divided into operation, standby（Cold standby and stand-by heat）, maintenance three kinds of states.Equipment is turned by a kind of state
It is changed into the process of another state back brake, the operation carried out is grid switching operation.
In back brake grasps inspection operation, because process is cumbersome, operating personnel need to strictly observe operating process, but existing
Back brake fault-operation protection measure deficiency, security is low, once operational error, mistiming is not closed in breaker and disconnecting switch
Operating ground connection electric brake is closed, it will cause three-phase ground short trouble, produce arcing electric discharge phenomena, electric arc meeting when serious
Burn staff, causes heavy losses.
Utility model content
1. technical problems to be solved
For the deficiency of back brake fault-operation protection measure present in prior art, the problem of security is low, the utility model
Purpose be to provide kind of the blocking device for preventing power transformation operation back brake maloperation, it can realize that prevents back brake grasps by mistake
Make, it is safe.
2. technical scheme
To solve the above problems, the utility model adopts the following technical scheme that.
A kind of blocking device for preventing power transformation operation back brake maloperation, including housing, grounding switch and cabinet door, the ground connection
Disconnecting link is fixedly connected on housing, and grounding switch, which is used to be grounded, to be operated, and being fixedly connected makes grounding switch reliable operation, the cabinet door
It is connected by hinge with housing, cabinet door is fixedly connected with display, shown for the folding blocking device, the housing top
Device is used to show running status, and human users easy to operation, being fixedly connected prevents display from coming off, the display lower left
Micro computer is connected with by signal wire, micro computer is used for the information for receiving and manipulating each element, and the micro computer is located at display
Lower section, controller is connected with by signal wire below the micro computer, controller is used for the folding for controlling earth cable, described
Controller is located at the lower section of micro computer, and the controller right is connected with grounding switch by earth cable, and earth cable is used for
Ground connection operation, the controller are located at the left side of grounding switch, and the micro computer is connected with the first current sense by signal wire
Device and the second current sensor, first current sensor are fixedly connected on breaker cable, second current sense
Device is fixedly connected on isolation cable, and breaker cable is used for breaker manipulation off state, and isolation cable is used for disconnecting switch
Isolation is manipulated, the first current sensor is with the second current sensor for detecting the circuit-breaker status of transformer with isolating
On off state, the micro computer right are electrically connected with power supply by wire, and power supply is used to provide power, institute with electric device to each
State power supply, micro computer and controller to be fixedly connected with housing, being fixedly connected can make each element manipulation reliable, prevent from coming off.
Preferably, the micro computer is internally provided with transistor, enables each element in larger signal pulse
Lower work.
Preferably, the controller is made up of command register, program counter and operational control device, can ensure to control
Device has superior performance, controller is worked long hours.
3. beneficial effect
Compared to prior art, the utility model has the advantage of：
（1）It is fixedly connected on by the first current sensor on breaker cable, the second current sensor is fixedly connected on
Isolate on cable, the first current sensor detects the circuit-breaker status of transformer with keeping apart respectively with the second current sensor
Off status, and micro computer is sent signal to, micro computer with controller by way of signal wire is connected, control by micro computer manipulation
Device processed closes earth cable, realizes the detection to transformer off state and isolation and the limit to grounding switch
System, prevents transformer from carrying out ground connection operation in disconnect switch and not closed disconnecting switch, avoids that back brake maloperation occurs,
Improve security；
（2）By way of the micro computer is internally provided with transistor, realize to the first current sensor with
The amplification of second current sensor signal, each element is set to be worked under larger signal pulse；
（3）It is made up of controller command register, program counter and operational control device, can ensures that controller has
Superior performance, controller is set to work long hours.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is external structure schematic diagram of the present utility model；
Fig. 3 is theory diagram of the present utility model.
Label declaration in figure：
1st, housing；2nd, display；3rd, power supply；4th, the first current sensor；5th, micro computer；6th, controller；7th, grounding switch；
8th, the second current sensor；9th, earth cable；10th, breaker cable；11st, cable is isolated；12nd, cabinet door.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment；The technical scheme in the embodiment of the utility model is carried out
Clearly and completely describe；Obviously；Described embodiment is only the utility model part of the embodiment；Rather than whole
Embodiment.Based on the embodiment in the utility model；Those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained；Belong to the scope of the utility model protection.
Refer to Fig. 1-3, a kind of blocking device for preventing power transformation operation back brake maloperation, including housing 1, grounding switch 7
With cabinet door 12, grounding switch 7 is fixedly connected on housing 1, and grounding switch 7, which is used to be grounded, to be operated, and being fixedly connected makes grounding switch 7
Reliable operation, cabinet door 12 are connected by hinge with housing 1, and for the folding blocking device, the top of housing 1 is fixed to be connected cabinet door 12
Display 2 is connected to, display 2 is used to show running status, and human users easy to operation, being fixedly connected prevents display 2 from coming off,
The lower left of display 2 is connected with micro computer 5 by signal wire, and micro computer 5 is used for the information for receiving and manipulating each element, micro- electricity
Brain 5 is located at the lower section of display 2, and the lower section of micro computer 5 is connected with controller 6 by signal wire, and controller 6 is used to control ground connection electricity
The folding of cable 9, controller 6 are located at the lower section of micro computer 5, and the right of controller 6 is connected with grounding switch 7 by earth cable 9, connect
Ground cable 9, which is used to be grounded, to be operated, and controller 6 is located at the left side of grounding switch 7, and micro computer 5 is connected with the first electricity by signal wire
The current sensor 8 of flow sensor 4 and second, the first current sensor 4 are fixedly connected on breaker cable 10, and the second electric current passes
Sensor 8 is fixedly connected on isolation cable 11, and breaker cable 10 is used for breaker manipulation off state, and isolation cable 11 is used for
Disconnecting switch manipulates isolation, and the first current sensor 4 and the second current sensor 8 are used for the breaker for detecting transformer
State and disconnecting switch state, the right of micro computer 5 are electrically connected with power supply 3 by wire, and power supply 3 is used to be carried with electric device to each
For power, power supply 3, micro computer 5 and controller 6 are fixedly connected with housing 1, and being fixedly connected can make each element manipulation reliable,
Prevent from coming off.
Wherein, in actual applications, micro computer 5 is internally provided with transistor, enables each element larger
Worked under signal pulse；Controller 6 is made up of command register, program counter and operational control device, can ensure controller 6
There is superior performance, controller 6 is worked long hours.
Operation principle：The first step, each element group is installed whole, switches on power 3；Second step, the first current sensor 4 and
Two current sensors 8 detect the circuit-breaker status and disconnecting switch state of transformer respectively, and send signal to micro computer
5, when micro computer 5 detects that killer switch is in opening with disconnecting switch, micro computer 5 manipulates controller 6 and closed
Earth cable 9, now grounding switch 7 can be closed by staff and carry out service work, when the first current sensor 4 and the second electricity
When flow sensor 8 detects that killer switch is not closed at disconnecting switch, micro computer 5 manipulates controller 6 and disconnects ground connection electricity
Cable 8, now grounding switch 7 do not play control action.
It is described above；The only preferable embodiment of the utility model；But the scope of protection of the utility model is not
It is confined to this；Any one skilled in the art is in the technical scope that the utility model discloses；According to this practicality
New technical scheme and its improvement design is subject to equivalent substitution or change；It should all cover in the scope of protection of the utility model
It is interior.
Claims (3)
1. a kind of blocking device for preventing power transformation operation back brake maloperation, including housing（1）, grounding switch（7）With cabinet door（12）,
The grounding switch（7）It is fixedly connected on housing（1）On, the cabinet door（12）Pass through hinge and housing（1）It is connected, its feature
It is：The housing（1）Top is fixedly connected with display（2）, the display（2）Lower left is connected with by signal wire
Micro computer（5）, the micro computer（5）Positioned at display（2）Lower section, the micro computer（5）Lower section is connected with by signal wire
Controller（6）, the controller（6）Positioned at micro computer（5）Lower section, the controller（6）Right passes through earth cable（9）Even
It is connected to grounding switch（7）, the controller（6）Positioned at grounding switch（7）Left side, the micro computer（5）Connected by signal wire
It is connected to the first current sensor（4）With the second current sensor（8）, first current sensor（4）It is fixedly connected on open circuit
Device cable（10）On, second current sensor（8）It is fixedly connected on isolation cable（11）On, the micro computer（5）Right
With power supply（3）It is electrically connected with by wire, the power supply（3）, micro computer（5）With controller（6）It is fixedly connected with housing（1）
On.
A kind of 2. blocking device for preventing power transformation operation back brake maloperation according to claim 1, it is characterised in that：It is described
Micro computer（5）It is internally provided with transistor.
A kind of 3. blocking device for preventing power transformation operation back brake maloperation according to claim 1, it is characterised in that：It is described
Controller（6）It is made up of command register, program counter and operational control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720956700.7U CN206991977U (en) | 2017-08-02 | 2017-08-02 | A kind of blocking device for preventing power transformation operation back brake maloperation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720956700.7U CN206991977U (en) | 2017-08-02 | 2017-08-02 | A kind of blocking device for preventing power transformation operation back brake maloperation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206991977U true CN206991977U (en) | 2018-02-09 |
Family
ID=61418535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720956700.7U Expired - Fee Related CN206991977U (en) | 2017-08-02 | 2017-08-02 | A kind of blocking device for preventing power transformation operation back brake maloperation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206991977U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112433118A (en) * | 2020-11-16 | 2021-03-02 | 国网山东省电力公司聊城供电公司 | 10kV medium-voltage power generation vehicle anti-misoperation simulation device and method |
| CN113035630A (en) * | 2021-03-09 | 2021-06-25 | 天津国投津能发电有限公司 | Novel disconnecting link linkage and misoperation prevention locking device |
-
2017
- 2017-08-02 CN CN201720956700.7U patent/CN206991977U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112433118A (en) * | 2020-11-16 | 2021-03-02 | 国网山东省电力公司聊城供电公司 | 10kV medium-voltage power generation vehicle anti-misoperation simulation device and method |
| CN112433118B (en) * | 2020-11-16 | 2022-07-01 | 国网山东省电力公司聊城供电公司 | Anti-misoperation simulation device and method for 10kV medium-voltage power generation vehicle |
| CN113035630A (en) * | 2021-03-09 | 2021-06-25 | 天津国投津能发电有限公司 | Novel disconnecting link linkage and misoperation prevention locking device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhao Ziyao Inventor after: Zhang Jiehui Inventor after: Li Zhiqiang Inventor before: Zhao Ziyao Inventor before: Zhang Jiehui |
|
| CB03 | Change of inventor or designer information | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180209 Termination date: 20180802 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |