CN206945751U - Wiring terminal device based on single-end short circuit - Google Patents
Wiring terminal device based on single-end short circuit Download PDFInfo
- Publication number
- CN206945751U CN206945751U CN201720676563.1U CN201720676563U CN206945751U CN 206945751 U CN206945751 U CN 206945751U CN 201720676563 U CN201720676563 U CN 201720676563U CN 206945751 U CN206945751 U CN 206945751U
- Authority
- CN
- China
- Prior art keywords
- terminal
- checked
- interval protection
- detection
- examine
- Prior art date
- 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.)
- Withdrawn - After Issue
Links
- 230000007246 mechanism Effects 0.000 claims abstract description 42
- 239000004020 conductor Substances 0.000 claims abstract description 15
- 238000001514 detection method Methods 0.000 claims description 97
- 230000004888 barrier function Effects 0.000 claims description 31
- 238000009413 insulation Methods 0.000 claims description 26
- 238000007689 inspection Methods 0.000 claims description 5
- 238000003780 insertion Methods 0.000 description 8
- 230000037431 insertion Effects 0.000 description 8
- 238000003756 stirring Methods 0.000 description 8
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 238000005204 segregation Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 206010048669 Terminal state Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Landscapes
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The utility model discloses a binding post device based on single-ended short circuit, including waiting to examine terminal, interval protection terminal, detecting wiring sleeve and bridging mechanism, wait to examine the external mutual side of electric current of waiting to examine equipment of terminal, the interval protection side of the external operation equipment of interval protection terminal, detect the wiring sleeve and set up in waiting to examine the mutual side of electric current of examining the terminal, and run through the line ball conductor of waiting to examine the terminal from top to bottom, bridging mechanism movably connects and waits to examine terminal and interval protection terminal, wherein: bridging mechanism is including the insulating part that sets up its left end and the conductive part who sets up its right-hand member, works as bridging mechanism removes when waiting to examine the terminal, conductive part connects and waits to examine terminal and interval protection terminal, realizes waiting to examine the connection status of terminal and interval protection terminal, just insulating part seals detect the telescopic mouth of pipe of working a telephone switchboard. The utility model discloses technical scheme reduces electric wire netting operating personnel's maloperation, reduces the electric wire netting incident and takes place.
Description
Technical field
It the utility model is related to binding post technical field, more particularly to a kind of binding post dress based on single-ended short circuit
Put.
Background technology
Generally realized inside the screen cabinet such as relay protection of power system screen, terminal box or central console by connecting terminal apparatus
The switching or connection of secondary circuit cable wireline inspection.The connecting terminal apparatus being widely used at present includes insulation crust, housing
Interior to include terminal screw, wiring nut and line ball conductor including each binding post in left and right, each binding post, each line ball is led
The Current Mutual Inductance side of body is equipped with detection wiring sleeve；Housing also includes belonging to the clamping screw of bridge joint mechanism and upper and lower connection
Piece, and housing interior element uses metallic conductor.Connecting terminal apparatus sets bridge joint mechanism and detection due to the needs of detection
Line sleeve；On in flakes and under be used to connecting the binding post at left and right both ends in flakes, clamping screw from top to bottom through connection it is upper,
Lower connection sheet：Unscrew clamping screw, can the connection sheet of manual toggle two, realize " connection " or the "off" two of the binding post at both ends
Kind state；Clamping screw is tightened, then by upper and lower connection sheet locked and fixed in current state, plays reliable connection or disconnects
Effect.So, it can easily and reliably realize that binding post both ends connect detection wire by stirring upper and lower connection sheet
It is connected and disconnected from two states.Detection line sleeve is directly connected in the line ball conductor of binding post, and internal diameter is slightly larger than detection line
The number of the metal sleeve of detection line plug external diameter, detection line sleeve and binding post matches, and left and right respectively sets one, is used for
It is interim easily and reliably into and out detection line during detection.The detection operating process of this connecting terminal apparatus：During wiring,
The copper cash that cable the end of a thread is gone after insulated hull is stretched into the wiring sleeve of terminal left and right ends line ball conductor, is turned left and right ends and is connect
The terminal screw of line terminals, copper cash is compressed, completes the copper cash of cable and the connection of line ball conductor；During detection, detection line will be housed
Detection line plug insertion detection wiring sleeve in, realize the connection of detection line and line ball conductor.Now two cables in left and right
Whether connected between (or detection line), depend entirely on clamping screw in terminal intermediate axle connection mechanism, in flakes and under in flakes
Location status.
Now, 500kV circuits typically using " one and half wiring " are two line segregations in relay protection of power system
Share three breakers, a middle breaker and two side breakers circuit line segregation 1 and are spaced 2 as one " string "
The current loop of protection is often covered, using one of side breaker side current transformer (hereinafter referred to as " CT ") and middle breaker
Side CT two-way electric currents merge collection, i.e., " and electric current " calculates.The CT of side breaker and middle breaker respectively take 1 it is secondary around
Group, it is respectively connected to be spaced the screen of 2 differential protection 1 through this interval breaker convergence control cabinet terminal block, every the screen side shape of 2 differential protection 1
Into " and electric current ".Wherein, in breaker convergence control cabinet in current loop terminal connections to be checked, the central side Current Mutual Inductance of breaker 5012
Device need for some reason it is out of service and need to carry out CT characteristic tests or maintenance when, now both sides breaker be located at closing position support pair
When answering circuit (such as interval 2) normal operation, now need to converge the middle side CT secondary circuits of breaker 5012 in 5012 breakers and control
Disconnected at cabinet terminal block, i.e. 5012 side CT of disconnection interrupted road device bis- times with and current loop disconnection, to ensure that line segregation 2 is differential
Protect 1 unaffected.
According to technical requirements, it is necessary to carry out technical safety measures, the cloth before maintenance or debugging efforts according to a graded
Put as follows with " the four canonic orderings operations " that is had to comply with resuming work after the completion of debugging efforts：
Arrangement order operates before current transformer is overhauled or debugged after having a power failure：
1. it will can be dialled among A phase, B phase, C phase, A phase N, B phase N, C phase N current terminals at breaker convergence control cabinet terminal block
Dynamic housing pin in flakes unclamps, and the connection sheet that can stir compression is moved to left to Current Mutual Inductance side can stir housing pin in flakes again
Fasten, now terminal or so conductive part has disconnected, i.e., stoppage in transit current transformer in operation with being spaced differential protection
Disconnected with current loop；
2. A phase, B phase, C phase, A phase N, B phase N, C phase N current terminal Current Mutual Inductances side in breaker convergence control cabinet terminal block
Detection line is inserted in sleeve to be detected.
Arrangement order operates after current transformer is overhauled or debugged after having a power failure：
3. by the A phase, B phase, C phase of breaker convergence control cabinet terminal block, A phase N, B phase N, C phase N current terminal Current Mutual Inductances
Detection line is inserted in the sleeve of side to extract；
4. it will can be dialled among A phase, B phase, C phase, A phase N, B phase N, C phase N current terminals at breaker convergence control cabinet terminal block
Dynamic housing pin in flakes unclamps, and the connection sheet that can stir compression is moved to right again can the company of stirring to interval differential protection and current side
Piece housing pin fastens, and now terminal or so conductive part has connected, i.e., current transformer in operation with being spaced differential guarantor
Shield and current loop have been turned on.
But there are " four canonic orderings with any group of secondary loop of mutual inductor of the electric current mode of connection
During operation ", exist following " four maloperations "：
1., the connection sheet that can stir compression is moved into Current Mutual Inductance side after, non-working side-interval protection side is carried out by mistake short
Connect；
2., the connection sheet that can stir compression is moved into Current Mutual Inductance side after, then with work habit interval protection side miss
Insert detection line and carry out the detection work such as electric current；
3., the connection sheet that can stir compression is not moved into non-Current Mutual Inductance side, directly Current Mutual Inductance side detection sleeve insert
Enter detection line and be powered up stream detection；
4., do not extract Current Mutual Inductance side detection line and directly recover connection sheet and connect loop.
Above " four maloperations ", consequence and reason are as follows caused by corresponding to：
When there is 1. item maloperation, because interval protection and current side are shorted, equivalent to by another group of operation
The secondary current of current transformer is shorted shunting before being protected at interval, causes interval protection device only to collect normal current
Sub-fraction, so as to produce poor stream, differential protection misoperation can be caused, the operating circuit of tripping, cause power grid safety accident
Occur；
When there is 2. item maloperation, equivalent to external tester operation and current loop in be directly added into electricity
Stream, with running current formation and electric current, interval protection act is also resulted in, consequence is as described in " 1 "；
3rd, when there is 3. item maloperation, reason and consequence are such as 2. described.
4th, when there is 4. item maloperation, reason and consequence are such as 2. described.
The content of the invention
Main purpose of the present utility model is to propose a kind of connecting terminal apparatus based on single-ended short circuit, it is intended to reduces power network
The maloperation of operating personnel, reduces power grid safety accident.
To achieve the above object, the utility model proposes a kind of connecting terminal apparatus based on single-ended short circuit, it includes
Terminal to be checked, interval protection terminal, detection wiring sleeve and bridge joint mechanism, the electric current of the external equipment to be checked of terminal to be checked are mutual
Feel side, the interval protection side of the interval protection external operational outfit of terminal, the detection wiring sleeve is arranged at terminal to be checked
Current Mutual Inductance side, and up and down run through terminal to be checked line ball conductor, it is described bridge joint mechanism be movably connected terminal to be checked and
Interval protection terminal, wherein：It is described bridge joint mechanism include insulated part and current-carrying part, when it is described bridge mechanism be moved to it is to be checked
During terminal, the current-carrying part connects terminal to be checked and interval protection terminal, realizes the company of terminal to be checked and interval protection terminal
Connect state, and the mouth of pipe of the insulated part closing detection wiring sleeve.
Preferably, when the bridge joint mechanism is moved to the interval protection end period of the day from 11 p.m. to 1 a.m, the insulated part release detection sleeve
The mouth of pipe of cylinder, the current-carrying part and the terminal to be checked are non-contact, realize the disconnection shape of terminal to be checked and interval protection terminal
State.
Preferably, the insulated part includes upper insulation barrier and lower insulation barrier, the current-carrying part include it is upper in flakes,
With under in flakes, the upper insulation barrier is fastenedly connected screw rod in flakes with upper, and the lower insulation barrier is fastenedly connected in flakes with, institute
State screw rod up and down through it is upper in flakes with in flakes, and it is movably clamped and connected in the interval protection of interval protection terminal
Side.
Preferably, the upper insulation barrier is in " ┓ ", longitudinal direction located at it is upper in flakes, and the height of the upper insulation barrier is more than
Detect the height of wiring sleeve.
Preferably, the present apparatus also includes：Detection line plug, when terminal to be checked and interval protection terminal are off
When, the detection line plug is from the insertion of detection wiring sleeve end of incoming cables, and the bottom of the line ball conductor from terminal to be checked is extended with
Extension, insulation barrier moves to left in the detection line plug transverse barriers outside the detection wiring sleeve end of incoming cables, the detection line plug
Extension transverse barriers under insulation barrier move to left.
Preferably, the lumen wall of the detection wiring sleeve is provided with elastic component, and the outer wall of the detection line plug is set
The limited impression being engaged with elastic component is equipped with, when detection line plug is inserted into certain position along detection wiring sleeve, originally
It is oppressed ground elastic component to be released at the limited impression of detection line plug, and coordinates with the limited impression gap, compresses
Detection line plug.
The utility model beneficial effect：
1st, the utility model only sets detection wiring sleeve in overall structure in side to be checked, can effectively avoid operating personnel
Short circuit or slotting detection line are carried out in the interval of the present application protection side, the 1st in " four mistake operations " can be prevented --- will
After bridge joint mechanism moves to Current Mutual Inductance side, non-Current Mutual Inductance side (interval protection side) is then subjected to short circuit with work habit；And
2nd --- after bridge joint mechanism is moved into Current Mutual Inductance side, then it is spaced protection side in non-Current Mutual Inductance side with work habit
It is mistakenly inserted detection line and carries out the experiment works such as electric current；
2nd, when bridge joint mechanism 4 is moved to 1 side of terminal to be checked, terminal 1 to be checked is in operation connection shape with interval protection terminal 2
State, terminal 1 or so to be checked are connected to current loop wire, loop charging operation, now, bridge the envelope of insulated part 41 of mechanism 4
Detection wiring sleeve 3 is closed, detection wiring sleeve 3 can not insert detection line, so, prevent operating personnel from not moving to right bridge joint mechanism
Cutoff circuit under be inserted directly into detection line additional examination galvanoscope or insertion shorting stub, the 3rd in " four mistake operations " can be prevented
--- bridge joint mechanism is not moved into non-Current Mutual Inductance side, directly carried out in Current Mutual Inductance side detection wiring sleeve insertion detection line
Add current testing.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to the structure shown in these accompanying drawings.
Fig. 1 is a kind of structural representation in connection status of the connecting terminal apparatus based on single-ended short circuit of the utility model
Figure；
Fig. 2 is a kind of structural representation in off-state of the connecting terminal apparatus based on single-ended short circuit of the utility model
Figure；
Realization, functional characteristics and the advantage of the utility model purpose will be described further referring to the drawings in conjunction with the embodiments.
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 describing, it is clear that described embodiment is only part of the embodiment of the present utility model, rather than all
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, belong to the scope of the utility model protection.
If it is to be appreciated that related in the utility model embodiment directionality instruction (such as upper and lower, left and right, it is preceding,
Afterwards ...), then directionality instruction be only used for explain it is relative between each part under a certain particular pose (as shown in drawings)
Position relationship, motion conditions etc., if the particular pose changes, directionality instruction also correspondingly changes therewith.
Reference picture 1, the utility model proposes a kind of connecting terminal apparatus based on single-ended short circuit, it includes terminal to be checked
1st, interval protection terminal 2, detection wiring sleeve 3 and bridge joint mechanism 4, the Current Mutual Inductance of the external equipment to be checked of terminal 1 to be checked
Side, the interval protection side of the interval protection 2 external operational outfit of terminal, the detection wiring sleeve 3 are arranged at Current Mutual Inductance
Side, the side of the remote equipment to be checked of terminal 1 specially to be checked, and run through the line ball conductor of terminal 1 to be checked, the bridge joint up and down
Mechanism 4 be movably connected terminal 1 to be checked and interval protection terminal 2, wherein：The bridge joint mechanism 4 includes setting its left end
Insulated part 41 and the current-carrying part 42 that its right-hand member is set, when the bridge joint mechanism 4 is moved to terminal 1 to be checked, the conduction
Part 42 connects terminal 1 to be checked and interval protection terminal 2, realizes the connection status of terminal 1 to be checked and interval protection terminal 2, and
The insulated part 41 closes the mouth of pipe of the detection wiring sleeve 3.
In the utility model embodiment, terminal to be checked and interval protection terminal are only to be distinguished needed for operation detection
Connection terminal structure, including terminal screw, wiring nut and line ball conductor, as prior art part, tired state is not done herein.
Detection wiring sleeve 3 is only provided with the side of terminal 1 to be checked in the utility model overall structure, is realized with this single-ended
Short circuit, so, it can effectively avoid operating personnel from carrying out short circuit or slotting detection line in the non-Current Mutual Inductance side of terminal 1 to be checked, can prevent
After bridge joint mechanism 4 only is moved into Current Mutual Inductance side, then non-Current Mutual Inductance side (interval protection side) is carried out with work habit short
Connect；And will bridge joint mechanism 4 move to Current Mutual Inductance side after, then with work habit non-Current Mutual Inductance side i.e. be spaced protection side misplug
Enter detection line and carry out the detection work such as electric current；
When bridge joint mechanism 4 is moved to 1 side of terminal to be checked, terminal 1 to be checked is in operation connection shape with interval protection terminal 2
State, terminal 1 or so to be checked are connected to current loop wire, loop charging operation, now, bridge the envelope of insulated part 41 of mechanism 4
Detection wiring sleeve 3 is closed, detection wiring sleeve 3 can not insert detection line, so, prevent operating personnel from not moving to right bridge joint mechanism
Detection line additional examination galvanoscope or insertion shorting stub are inserted directly under 4 cutoff circuit, can prevent that bridge joint mechanism 4 is not moved into non-electrical
Mutual inductance side is flowed, the maloperation of stream experiment is directly powered up in the insertion detection line of Current Mutual Inductance side detection wiring sleeve 3.
Further, when the bridge joint mechanism 4 is moved to interval protection terminal 2, the current-carrying part 42 is treated with described
Inspection terminal 1 is non-contact, realizes the off-state of terminal 1 to be checked and interval protection terminal 2, and the release of the insulated part 41 detects
The mouth of pipe of wiring sleeve 3.
In the utility model embodiment, bridge joint mechanism 4 be moved to interval protection terminal 2, now, realize terminal 1 to be checked with
The off-state of interval protection terminal 2, except current-carrying part 42 is by lateral displacement, disconnect outside the connection with terminal 1 to be checked, absolutely
The mouth of pipe of the also release detection wiring sleeve 3 of edge point 41, so that detection line inserts detection wiring sleeve 3, is carried out to terminal 1 to be checked
Detection.So, prevent that bridge joint mechanism 4 only is moved into non-current transformer side, directly detect sleeve in current transformer side
Cylinder 3 inserts the maloperation that detection line is powered up stream experiment.
Further, the insulated part 41 includes upper insulation barrier 411 and lower insulation barrier 412, the current-carrying part
42 include it is upper in flakes 421, screw rod 422 and under in flakes 423, the upper insulation barrier 411 with it is upper in flakes 421 left end fastening connect
Connect, 423 left end is fastenedly connected the lower insulation barrier 412 in flakes with, the screw rod about 422 through it is upper in flakes 421 with
Under in flakes 423, and it is movably clamped and connected and protects side in the interval of interval protection terminal 2.
In the utility model embodiment, by taking the concrete structure for bridging mechanism 4 as an example, it should be appreciated that ground is the bridge machine
Structure 4 has and not limited to this concrete structure on the premise of the utility model is conceived.But it can be seen that the present embodiment from this structure
Bridge joint mechanism 4 with interval protect terminal 2 for longitudinally connected basic point, bridge mechanism 4 movement be relative to the longitudinally connected base
The transverse shifting that point is carried out.
Further, the upper insulation barrier 411 is in " ┓ ", and longitudinal direction is located at upper in flakes 421, and the upper insulation barrier
411 height is more than the height of detection wiring sleeve 3.
In the utility model embodiment, upper insulation barrier 411 is arranged to " ┓ " type, complete when mechanism 4 moves to left in order to bridge
Close in pairs the mouth of pipe of detection wiring sleeve 3.
Further, in addition to：Detection line plug 5, when terminal 1 to be checked is off with interval protection terminal 2,
The detection line plug 5 is from the insertion of detection wiring sleeve 3 end of incoming cables, and the bottom of the line ball conductor from terminal 1 to be checked is extended with
Extension, insulation barrier 411 moves to left in the detection line plug transverse barriers outside the end of incoming cables of detection wiring sleeve 3, the detection line
Insulation barrier 412 moves to left under the extension transverse barriers of plug 5.
In the utility model embodiment, it is in and is disconnected with interval protection terminal 2 in terminal 1 to be checked by detection line plug 5
Setting during state, complete laterally slidably to stop bridge joint mechanism 4 to coordinate, it is therefore prevented that bridge joint mechanism 4 moves to Current Mutual Inductance
Side, cause terminal 1 to be checked to be back to " connection " state unintentionally with interval protection terminal 2, prevented not transfer to Current Mutual Inductance side to examine
During survey line, directly recover connection status, connect loop, cause the generation of power grid safety accident.
Further, the lumen wall of the detection wiring sleeve 3 is provided with elastic component 31, when terminal 1 to be checked and
When protecting terminal 2 to be off, the detection line that the elastic component 31 is compressed from the insertion of detection wiring sleeve 3 end of incoming cables is inserted
First 5, so that detection line plug 5 is fastenedly connected the line ball conductor of terminal 1 to be checked.
In the utility model embodiment, by the setting of elastic component 31, to strengthen the detection line in detection line plug 5 with treating
Examine the electrical connection of terminal 1.
Preferred embodiment of the present utility model is these are only, not thereby limits the scope of the claims of the present utility model, it is every
Under inventive concept of the present utility model, the equivalent structure transformation made using the utility model specification and accompanying drawing content, or
Directly/be used in other related technical areas indirectly and be included in scope of patent protection of the present utility model.
Claims (6)
1. a kind of connecting terminal apparatus based on single-ended short circuit, it is characterised in that including terminal to be checked, interval protection terminal, inspection
Wiring sleeve and bridge joint mechanism, the Current Mutual Inductance side of the external equipment to be checked of terminal to be checked are surveyed, the interval is protected outside terminal
The interval protection side of operational outfit is connect, the detection wiring sleeve is arranged at the side of the remote equipment to be checked of terminal to be checked, and
Up and down run through terminal to be checked line ball conductor, it is described bridge joint mechanism be movably connected terminal to be checked and interval protection terminal, its
In：The bridge joint mechanism includes insulated part and current-carrying part, when the bridge joint mechanism is moved to terminal to be checked, the conduction
Part connects terminal to be checked and is spaced protection terminal, realizes the connection status of terminal to be checked and interval protection terminal, and described exhausted
The mouth of pipe of the partially enclosed detection wiring sleeve of edge.
2. the connecting terminal apparatus as claimed in claim 1 based on single-ended short circuit, it is characterised in that when bridge joint mechanism movement
To the interval protection end period of the day from 11 p.m. to 1 a.m, the insulated part release detects the mouth of pipe of wiring sleeve, the current-carrying part and the end to be checked
Son is non-contact, realizes the off-state of terminal to be checked and interval protection terminal.
3. the connecting terminal apparatus as claimed in claim 1 based on single-ended short circuit, it is characterised in that the insulated part includes upper
Insulation barrier and lower insulation barrier, the current-carrying part include it is upper in flakes, screw rod and under in flakes, the upper insulation barrier and upper company
Piece is fastenedly connected, and the lower insulation barrier is fastenedly connected in flakes with, the screw rod up and down through it is upper in flakes with in flakes, and will
It is movably clamped and connected protects side in the interval of interval protection terminal.
4. the connecting terminal apparatus as claimed in claim 3 based on single-ended short circuit, it is characterised in that the upper insulation barrier is in
" ┓ ", longitudinal direction located at it is upper in flakes, and the height of the upper insulation barrier be more than detection wiring sleeve height.
5. the connecting terminal apparatus based on single-ended short circuit as described in claim any one of 1-4, it is characterised in that also include：Inspection
Survey line plug, when terminal to be checked with interval protection terminal be off when, the detection line plug from detection wiring sleeve
End of incoming cables is inserted, and the bottom of the line ball conductor from terminal to be checked is extended with extension, outside the detection wiring sleeve end of incoming cables
Insulation barrier moves to left in detection line plug transverse barriers, and insulation barrier moves to left under the extension transverse barriers of the detection line plug.
6. the connecting terminal apparatus as claimed in claim 1 based on single-ended short circuit, it is characterised in that the detection wiring sleeve
Lumen wall is provided with elastic component, and the outer wall of the detection line plug is provided with the limited impression being engaged with elastic component, works as inspection
When detection wiring sleeve in survey line plug edge is inserted into certain position, ground elastic component is oppressed at the limited impression of detection line plug
It is released, and coordinates with the limited impression gap, compresses detection line plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720676563.1U CN206945751U (en) | 2017-06-12 | 2017-06-12 | Wiring terminal device based on single-end short circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720676563.1U CN206945751U (en) | 2017-06-12 | 2017-06-12 | Wiring terminal device based on single-end short circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206945751U true CN206945751U (en) | 2018-01-30 |
Family
ID=61363128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720676563.1U Withdrawn - After Issue CN206945751U (en) | 2017-06-12 | 2017-06-12 | Wiring terminal device based on single-end short circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206945751U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109030873A (en) * | 2017-06-12 | 2018-12-18 | 广东电网有限责任公司揭阳供电局 | A kind of connecting terminal apparatus based on single-ended short circuit |
-
2017
- 2017-06-12 CN CN201720676563.1U patent/CN206945751U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109030873A (en) * | 2017-06-12 | 2018-12-18 | 广东电网有限责任公司揭阳供电局 | A kind of connecting terminal apparatus based on single-ended short circuit |
| CN109030873B (en) * | 2017-06-12 | 2023-09-08 | 广东电网有限责任公司揭阳供电局 | Binding post device based on single-ended short circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103338970B (en) | For protecting method and the charging device of charging cables | |
| CN206945751U (en) | Wiring terminal device based on single-end short circuit | |
| CN106786473A (en) | A kind of arc suppression coil earthing system distribution line single-phase earth fault isolation method | |
| CN109030873A (en) | A kind of connecting terminal apparatus based on single-ended short circuit | |
| CN207442446U (en) | Traction substation incoming power ring goes out construction into ring | |
| CN207251217U (en) | Earthing or grounding means and DC transmission system in a kind of current conversion station | |
| CN205786965U (en) | The device of a kind of electric power system power generation circuit earthing wire-selecting and comprehensive protector | |
| CN206180580U (en) | Short circuit fault current limiter | |
| CN101944716A (en) | Electricity leakage detection protective circuit | |
| CN209118451U (en) | A kind of distribution box internal environment monitoring system | |
| CN107462788A (en) | A kind of method of testing of 500kV auto-transformers D.C. resistance | |
| CN103018631A (en) | System for 10kV fault line detection | |
| CN208522450U (en) | Ground protection circuit and motor power supply system | |
| CN103208775A (en) | Protection switch device for detecting fault current and control method | |
| CN203166382U (en) | 10kV double-circuit breaker high-voltage switch cabinet | |
| CN202815071U (en) | High-voltage live detection indication system | |
| CN206790062U (en) | A kind of intelligent cable with video acquisition function | |
| CN107422151A (en) | Novel test terminal with single-side short circuit and anti-misoperation locking function | |
| CN215681772U (en) | System with electric leakage detection and control functions | |
| CN105226634A (en) | A kind of (TT) distribution system | |
| CN202929158U (en) | 10KV grounding line selection system | |
| CN203983988U (en) | A kind of (TT) distribution system | |
| CN108471125A (en) | With earth leakage protective three phase network commutation system | |
| CN214755172U (en) | Live-line replacement device for lightning arrester counter | |
| CN207457289U (en) | Interconnected loop test terminal with state recognition |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180130 Effective date of abandoning: 20230908 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20180130 Effective date of abandoning: 20230908 |