CN109030873A - A kind of connecting terminal apparatus based on single-ended short circuit - Google Patents
A kind of connecting terminal apparatus based on single-ended short circuit Download PDFInfo
- Publication number
- CN109030873A CN109030873A CN201710439778.6A CN201710439778A CN109030873A CN 109030873 A CN109030873 A CN 109030873A CN 201710439778 A CN201710439778 A CN 201710439778A CN 109030873 A CN109030873 A CN 109030873A
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- Prior art keywords
- terminal
- checked
- interval
- detection
- bridge joint
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
- G01R1/0416—Connectors, terminals
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Abstract
The present invention discloses a kind of connecting terminal apparatus based on single-ended short circuit, including terminal to be checked, interval protection terminal, detect wiring sleeve and bridge joint mechanism, the Current Mutual Inductance side of the external equipment to be checked of terminal to be checked, protect side in the interval of the interval protection external running equipment of terminal, detection wiring sleeve is set to the Current Mutual Inductance side of terminal to be checked, and run through the crimping conductor of terminal to be checked up and down, bridge joint mechanism be movably connected terminal to be checked and interval protection terminal, wherein: the bridge joint mechanism includes insulated part and current-carrying part, when the bridge joint mechanism is moved to terminal to be checked, the current-carrying part connects terminal to be checked and interval protection terminal, realize the connection status of terminal to be checked and interval protection terminal, and the insulated part closes the nozzle of the detection wiring sleeve.Technical solution of the present invention reduces the maloperation of electric grid operating personnel, reduces power grid safety accident.
Description
Technical field
The present invention relates to connecting terminal technical field, in particular to a kind of connecting terminal apparatus based on single-ended short circuit.
Background technique
It is usually realized by connecting terminal apparatus inside the screen cabinet such as relay protection of power system screen, terminal box or central console
The switching or connection of secondary circuit cable wireline inspection.The connecting terminal apparatus being widely used at present includes insulation crust, shell
Interior includes each connecting terminal in left and right, and each connecting terminal includes terminal screw, wiring nut and crimping conductor, and each crimping is led
The Current Mutual Inductance side of body is equipped with detection wiring sleeve；Shell further includes the clamping screw for belonging to bridge joint mechanism and upper and lower connection
Piece, and element is all made of metallic conductor in shell.Bridge joint mechanism and detection is arranged due to the needs of detection in connecting terminal apparatus
Line sleeve；On in flakes and under in flakes for connecting the connecting terminal at left and right both ends, clamping screw from top to bottom run through connection it is upper,
Lower connection sheet: unscrewing clamping screw, can two connection sheet of manual toggle, realize " connection " or "off" two of the connecting terminal 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.In this way, being reliably achieved connecting terminal both ends and stirring upper and lower connection sheet and can be convenient connects detection conducting wire
It is connected and disconnected from two states.Detection line sleeve is directly connected in the crimping conductor of connecting terminal, and internal diameter is slightly larger than detection line
The number of the metal sleeve of detection line plug outer diameter, detection line sleeve and connecting terminal matches, and each setting one in left and right is used for
Temporarily easily and reliably into and out detection line when detection.The detection operating process of this connecting terminal apparatus: when wiring,
Cable the end of a thread goes the copper wire after insulated hull to protrude into the wiring sleeve of terminal left and right ends crimping conductor, turns left and right ends and connects
The terminal screw of line terminals compresses copper wire, completes the copper wire of cable and the connection of crimping conductor；When detection, detection line will be housed
Detection line plug insertion detection wiring sleeve in, realize detection line and crimping conductor connection.Two cables in left and right at this time
Whether be 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 route generally uses " one and half wiring " i.e. two line segregations in relay protection of power system
Share three breakers, a middle breaker and two side breakers route line segregation 1 and are spaced 2 as one " string "
The current loop of every set protection, is all made of one of side breaker side current transformer (hereinafter referred to as " CT ") and middle breaker
Side CT two-way electric current merges acquisition, i.e., " and electric current " calculates.The CT of side breaker and middle breaker respectively take 1 it is secondary around
Group is respectively connected to interval 2 differential protection, 1 screen through this interval breaker convergence control cabinet terminal block, every 2 differential protection, 1 screen side shape
At " and electric current ".Wherein, in breaker convergence control cabinet in current loop terminal connections to be checked, 5012 side Current Mutual Inductance of breaker in the middle
Device need for some reason it is out of service and need to carry out CT characteristic test or maintenance when, at this time both sides breaker be located at closing position support pair
When route (such as interval 2) being answered to operate normally, needs to converge middle 5012 side CT secondary circuit of breaker in 5012 breakers at this time 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 guarantee that line segregation 2 is differential
It protects 1 unaffected.
According to technical requirements, it is necessary to carry out technical safety measures according to a graded, the cloth before maintenance or debugging efforts
It sets as follows with " the four canonic orderings operations " that is had to comply in resuming work after the completion of debugging efforts:
Arrangement order operation before current transformer is overhauled or debugged after having a power failure:
1. will can be dialled among A phase, B phase, C phase, A phase N, B phase N, C phase N current terminal 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
It fastens, terminal or so conductive part has disconnected at this time, i.e., is spaced differential protection in stoppage in transit current transformer and operation
It has been disconnected with current loop；
2. A phase, B phase, C phase, A phase N, B phase N, C phase N current terminal Current Mutual Inductance side in breaker convergence control cabinet terminal block
Detection line is inserted into 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 Inductance
Detection line is inserted into the sleeve of side to extract；
4. will can be dialled among A phase, B phase, C phase, A phase N, B phase N, C phase N current terminal 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 terminal or so conductive part has connected at this time, i.e., is spaced differential guarantor in current transformer and operation
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
When operation ", there are following " four maloperations ":
1., the connection sheet that can stir compression is moved into Current Mutual Inductance side after, accidentally non-working side-interval protection side is carried out short
It connects；
2., the connection sheet that can stir compression is moved into Current Mutual Inductance side after, then with work habit interval protection side miss
It is inserted into detection line and carries out the detection work such as electric current；
3., the connection sheet that can stir compression do not moved into non-Current Mutual Inductance side, directly in Current Mutual Inductance side, detection sleeve is inserted
Enter detection line and is powered up stream detection；
4., do not extract Current Mutual Inductance side detection line and directly restore connection sheet and connect circuit.
" four maloperations " above, the corresponding consequence generated and the reason is as follows that:
When there is 1. item maloperation, since interval protection and current side are shorted, it is equivalent to another group of operation
The secondary current of current transformer is shorted shunting before the protection of interval, and interval protective device is caused only to collect normal current
Sub-fraction will lead to differential protection misoperation to generate poor stream, and the running route of tripping causes power grid safety accident
Occur；
When there is 2. item maloperation, be equivalent to external tester operation and current loop in be directly added into electricity
Stream also results in interval protection act, consequence is as described in " 1 " with running current formation and electric current；
3, when there is 3. item maloperation, reason and consequence are as described in 2..
4, when there is 4. item maloperation, reason and consequence are as described in 2..
Summary of the invention
The main object of the present invention is to propose a kind of connecting terminal apparatus based on single-ended short circuit, it is intended to reduce electric grid operating
The maloperation of personnel, reduces power grid safety accident.
To achieve the above object, a kind of connecting terminal apparatus based on single-ended short circuit proposed by the present invention comprising to be checked
Terminal, interval protection terminal, detection wiring sleeve and bridge joint mechanism, the Current Mutual Inductance of the external equipment to be checked of terminal to be checked
Side；Protect side in the interval of the interval protection external running equipment of terminal；The detection wiring sleeve is set to terminal to be checked
Side far from equipment to be checked, and run through the crimping conductor of terminal to be checked up and down；The bridge joint mechanism is movably connected to be checked
Terminal and interval protection terminal, in which: the bridge joint mechanism includes insulated part and current-carrying part, when the bridge joint mechanism is mobile
When to terminal to be checked, the current-carrying part connects terminal to be checked and interval protection terminal, realizes terminal to be checked and interval protection end
The connection status of son, and the insulated part closes the nozzle of the 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 nozzle 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 under, institute
State screw rod run through up and down in flakes under in flakes, and it is movably clamped and connected in the non-Current Mutual Inductance of interval protection terminal
Side.
Preferably, the upper insulation barrier is in " ┓ ", is longitudinally disposed at left end in flakes, and the upper insulation barrier
Height is greater than the height of detection wiring sleeve.
Preferably, the present apparatus further include: detection line plug, when terminal to be checked and interval protection terminal are in an off state
When, the detection line plug is inserted into from detection wiring sleeve end of incoming cables, and the bottom end of the crimping 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
It is equipped with the limiting groove matched with elastic component, when detection line plug is inserted into certain position along detection wiring sleeve, originally
Be oppressed ground elastic component be released at the limiting groove of detection line plug, and with the limiting groove clearance fit, with compress
Detection line plug.
The invention has the advantages that:
1, detection wiring sleeve only is arranged in side to be checked in overall structure in the present invention, can effectively avoid operator at this
The interval protection side of application invention carries out short circuit or slotting detection line, can prevent the 1st in " four mistake operations " --- it will bridge
After mechanism moves to Current Mutual Inductance side, then non-Current Mutual Inductance side (interval protection side) is shorted with work habit；And the 2nd
--- after bridge joint mechanism is moved to Current Mutual Inductance side, protection side is then spaced in non-Current Mutual Inductance side with work habit and is mispluged
Enter detection line and carries out the experiment works such as electric current；
2, 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 conducting wire, circuit charging operation, at this point, 41 envelope of insulated part of bridge joint mechanism 4
Detection wiring sleeve 3 is closed, detection wiring sleeve 3 can not be inserted into detection line, in this way, preventing operator from not moving to right bridge joint mechanism
Disconnection 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, is directly carried out in Current Mutual Inductance side detection wiring sleeve insertion detection line
Add current testing.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
The structure shown according to these attached drawings obtains other attached drawings.
Fig. 1 is a kind of structural schematic diagram in connection status of the connecting terminal apparatus based on single-ended short circuit of the present invention；
Fig. 2 is a kind of structural schematic diagram in off-state of the connecting terminal apparatus based on single-ended short circuit of the present invention；
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
It is to be appreciated that if relating to directionality instruction (such as up, down, left, right, before and after ...) in the embodiment of the present invention,
Then directionality instruction be only used for explain under a certain particular pose (as shown in the picture) between each component relative positional relationship,
Motion conditions etc., if the particular pose changes, directionality instruction is also correspondingly changed correspondingly.
Referring to Figures 1 and 2, a kind of connecting terminal apparatus based on single-ended short circuit proposed by the present invention, it includes end to be checked
Son 1, interval protection terminal 2, detection wiring sleeve 3 and bridge joint mechanism 4, the electric current of the external equipment to be checked of terminal 1 to be checked are mutual
Feel side, side is protected at the interval of the interval protection external running equipment of terminal 2, and the detection wiring sleeve 3 is set to end to be checked
The side far from equipment to be checked of son 1, and run through the crimping conductor of terminal 1 to be checked up and down, the bridge joint mechanism 4 movably connects
Reception inspection terminal 1 and interval protection terminal 2, in which: the bridge joint mechanism 4 includes that insulated part 41 and the setting of its left end is arranged
The current-carrying part 42 of its right end, when the bridge joint mechanism 4 is moved to terminal 1 to be checked, the current-carrying part 42 connects end to be checked
Son 1 and interval protection terminal 2 realize the connection status of terminal 1 to be checked with interval protection terminal 2, and 41 envelope of the insulated part
Close the nozzle of the detection wiring sleeve 3.
In the embodiment of the present invention, terminal to be checked and interval protection terminal are wiring only to distinguish needed for operation detection
Terminal structure, including terminal screw, wiring nut and crimping conductor do not do tired state as prior art part herein.
1 side of terminal to be checked is only provided with detection wiring sleeve 3 in overall structure of the present invention, is realized with this single-ended short
It connects, is shorted or slotting detection line, can be prevented in the non-Current Mutual Inductance side of terminal 1 to be checked in this way, can effectively avoid operator
After bridge joint mechanism 4 is moved to Current Mutual Inductance side, then non-Current Mutual Inductance side (interval protection side) is shorted with work habit；
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 be mistakenly inserted
Detection line carries 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 conducting wire, circuit charging operation, at this point, 41 envelope of insulated part of bridge joint mechanism 4
Detection wiring sleeve 3 is closed, detection wiring sleeve 3 can not be inserted into detection line, in this way, preventing operator from not moving to right bridge joint mechanism
It is inserted directly into detection line additional examination galvanoscope or insertion shorting stub under 4 disconnection circuit, can prevent that bridge joint mechanism 4 is not moved to non-electrical
Mutual inductance side is flowed, directly detection wiring sleeve 3 is inserted into the maloperation that detection line is powered up stream test in Current Mutual Inductance side.
Further, when the bridge joint mechanism 4 is moved to interval protection terminal 2, the current-carrying part 42 with it is described to
Inspection terminal 1 is non-contact, realizes the off-state of terminal 1 to be checked with interval protection terminal 2, and the release of the insulated part 41 detects
The nozzle of wiring sleeve 3.
In the embodiment of the present invention, bridge joint mechanism 4 is moved to interval protection terminal 2, at this point, realizing terminal 1 to be checked and interval
The off-state for protecting terminal 2 disconnects outside the connection with terminal 1 to be checked, insulation division in addition to current-carrying part 42 is by lateral displacement
The nozzles of 41 also release detection wiring sleeves 3 are divided to examine so that detection line is inserted into detection wiring sleeve 3 to terminal 1 to be checked
It surveys.In this way, preventing that bridge joint mechanism 4 is only moved to non-current transformer side, wiring sleeve 3 directly is detected in current transformer side
Insertion detection line is powered up the maloperation of stream test.
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 fasten and connect
Connect, 423 left end is fastenedly connected the lower insulation barrier 412 in flakes under, about 422 screw rod 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 embodiment of the present invention, by taking the specific structure for bridging mechanism 4 as an example, it should be appreciated that ground is that the bridge joint mechanism 4 exists
Under the premise of present inventive concept, have and specific structure without being limited thereto.But it can be seen that the bridge joint mechanism of the present embodiment from this structure
4 protect terminal 2 for longitudinally connected basic point with interval, and the movement of bridge joint mechanism 4 is the cross carried out relative to the longitudinally connected basic point
To movement.
Further, the upper insulation barrier 411 is in " ┓ ", is longitudinally disposed in flakes 421 left end, and described exhausted
The height of edge baffle 411 is greater than the height of detection wiring sleeve 3.
In the embodiment of the present invention, upper insulation barrier 411 is set as " ┓ " type, in order to bridge completion pair when mechanism 4 moves to left
It closes with detecting the nozzle of wiring sleeve 3.
Further, further includes: detection line plug 5, when terminal 1 to be checked is in an off state with interval protection terminal 2,
The detection line plug 5 is inserted into from detection 3 end of incoming cables of wiring sleeve, and the bottom end of the crimping 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 3 end of incoming cables of detection wiring sleeve, the detection line
Insulation barrier 412 moves to left under the extension transverse barriers of plug 5.
In the embodiment of the present invention, it is in an off state by detection line plug 5 in terminal 1 to be checked and interval protection terminal 2
When setting, with cooperation complete to bridge joint mechanism 4 laterally slidably stop, it is therefore prevented that bridge joint mechanism 4 move to Current Mutual Inductance side, draw
It plays terminal 1 to be checked and is back to " connection " state unintentionally with interval protection terminal 2, prevented not transfer to Current Mutual Inductance side detection line
When, directly the generation of power grid safety accident is caused in recovery connection status, connection circuit.
Further, it is described detection wiring sleeve 3 lumen wall be provided with elastic component 31, when terminal 1 to be checked and
When protecting terminal 2 to be in an off state, the elastic component 31 is compressed to be inserted from the detection line that detection 3 end of incoming cables of wiring sleeve is inserted into
First 5, so that detection line plug 5 is fastenedly connected the crimping conductor of terminal 1 to be checked.
In the embodiment of the present invention, by the setting of elastic component 31, to reinforce the detection line in detection line plug 5 and end to be checked
The electrical connection of son 1.
The above is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all in the present invention
Inventive concept under, using equivalent structure transformation made by description of the invention and accompanying drawing content, or directly/be used in it indirectly
He is included in scope of patent protection of the invention relevant technical field.
Claims (6)
1. a kind of connecting terminal apparatus based on single-ended short circuit, which is characterized in that including terminal to be checked, interval protection terminal, inspection
Wiring sleeve and bridge joint mechanism are surveyed, the Current Mutual Inductance side of the external equipment to be checked of terminal to be checked, the interval is protected outside terminal
The interval protection side of running equipment is connect, the detection wiring sleeve is set to the side far from equipment to be checked of terminal to be checked, and
Up and down run through terminal to be checked crimping conductor, the bridge joint mechanism be movably connected terminal to be checked and interval protect terminal,
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 nozzle of the partially enclosed detection wiring sleeve of edge.
2. the connecting terminal apparatus as described in claim 1 based on single-ended short circuit, which is characterized in that when the bridge joint mechanism is mobile
To the interval protection end period of the day from 11 p.m. to 1 a.m, the insulated part release detects the nozzle 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 described in claim 1 based on single-ended short circuit, which is characterized 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 under, the screw rod up and down run through in flakes under in flakes, and will
It, which 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, which is characterized in that the upper insulation barrier is inIt is longitudinal be set to it is upper in flakes, and the height of the upper insulation barrier is greater than the height of detection wiring sleeve.
5. the connecting terminal apparatus based on single-ended short circuit as described in claim any one of 1-4, which is characterized in that further include: inspection
Survey line plug, when terminal to be checked and interval protection terminal be in an off state when, the detection line plug from detection wiring sleeve
End of incoming cables insertion, and the bottom end of the crimping 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 based on single-ended short circuit as described in claim 1 or 5, which is characterized in that the detection sleeve
The lumen wall of cylinder is provided with elastic component, and the outer wall of the detection line plug is provided with the limiting groove matched with elastic component,
When detection line plug is inserted into certain position along detection wiring sleeve, it is recessed in the limit of detection line plug to be oppressed ground elastic component
Be released at slot, and with the limiting groove clearance fit, to compress detection line plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710439778.6A CN109030873B (en) | 2017-06-12 | 2017-06-12 | Binding post device based on single-ended short circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710439778.6A CN109030873B (en) | 2017-06-12 | 2017-06-12 | Binding post device based on single-ended short circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109030873A true CN109030873A (en) | 2018-12-18 |
| CN109030873B CN109030873B (en) | 2023-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710439778.6A Active CN109030873B (en) | 2017-06-12 | 2017-06-12 | Binding post device based on single-ended short circuit |
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| CN (1) | CN109030873B (en) |
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| CN112444648A (en) * | 2020-11-17 | 2021-03-05 | 贵州电网有限责任公司 | Relay protection current loop rapid test wiring device |
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| CN206945751U (en) * | 2017-06-12 | 2018-01-30 | 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 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112444648A (en) * | 2020-11-17 | 2021-03-05 | 贵州电网有限责任公司 | Relay protection current loop rapid test wiring device |
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| CN109030873B (en) | 2023-09-08 |
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