CN103985985A - Fast short circuit device of secondary current loop of power transformation and distribution system - Google Patents
Fast short circuit device of secondary current loop of power transformation and distribution system Download PDFInfo
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- CN103985985A CN103985985A CN201410152519.1A CN201410152519A CN103985985A CN 103985985 A CN103985985 A CN 103985985A CN 201410152519 A CN201410152519 A CN 201410152519A CN 103985985 A CN103985985 A CN 103985985A
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- wire
- short circuit
- secondary current
- distribution system
- circuit device
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Abstract
The invention discloses a fast short circuit device of a secondary current loop of a power transformation and distribution system, and belongs to the technical field of wire connecting devices of power systems. The fast short circuit device of the secondary current loop of the power transformation and distribution system comprises a short circuit wire, terminal studs are connected with the two ends of the short circuit wire respectively, and each terminal stud comprises an insulation shell and a metal cutter piece used for splitting a wire insulation layer. Each insulation shell is formed by flexibly connecting an upper half shell and a lower half shell in a butt joint mode, and at least two wire threading inner holes are formed between the corresponding to half shells. The lower portions of the metal cutter pieces are embedded into the half shells, the upper portions of the metal cutter pieces stretch and cut into the wire threading inner holes, and the metal cutter pieces are further provided with wire clamping grooves arranged corresponding to the wire threading inner holes. Ends of the short circuit wire are inserted into the wire threading inner holes, clamped into the wire clamping grooves and electrically connected with the metal cutter pieces. According to the fast short circuit device of the secondary current loop of the power transformation and distribution system, fast connection of the short circuit wire and a wire to be short circuited can be achieved, connection is firm and reliable, reliable electric connection can be achieved without additional wire splitting processing, and safety is high.
Description
Technical field
The present invention relates to a kind of wire connection device, particularly the quick short-circuit device in a kind of transformation and distribution system secondary current loop, belongs to wire connection device technical field.
Background technology
In the transformer station of transformation and distribution system, high pressure primary current is transformed into secondary current by Current Transmit, for relaying protection, measurement etc.Because the load of protections at different levels, measurement is connected in secondary current loop, from the angle of electrical connection, secondary current loop must guarantee the continuity that it is electrically connected to, and must not " open a way ".Otherwise, once " open circuit " phenomenon appears in secondary current loop, will in secondary current loop, produce high voltage, the person and device security are brought to threat, these are early existing clear and definite regulation in the safe operation rules of electric power system.In actual motion and maintenance work, sometimes need to set under the standby condition in " RUN " state once becoming, the load equipment that exits secondary current loop carries out various work, now need secondary current loop to carry out " short circuit ", to guarantee the continuity of its current circuit, then, exit some load equipment on secondary current loop, load equipment is carried out to various tests, replacing or other maintenance works.
Although had part switch cubicle at present or become power distribution equipment in transformation and distribution system and started to be equipped with special secondary current loop current testing terminal, but in fact, due to the difference in device fabrication age, also having very most switch cubicle or becoming power distribution equipment is to use general conventional binding post.Therefore how on the conventional binding post of such device, carrying out safe and reliable electric current " short circuit ", is the practical problem often facing in real work at the scene.
In the test process of electronics industry, often can use a kind of crocodile clip, its front end has two interlocks in opposite directions, occlusal end with zigzag inner side edge, two occlusal end are by a stud connection, form a similar scissors-like structure, on hinge, be provided with a spring, by two ends of spring, respectively two occlusal end clamps are applied to an elastic pressure, use the effect of lever principle and spring, making between two occlusal end of crocodile clip can clamping test thing or wire, after its tail end welding lead, be connected to again power end or other test leads, to carry out test job.Because its clamp is light, easy folder, so generally use crocodile clip to realize the object in its " short circuit " secondary current loop in prior art.
Although traditional crocodile clip also can short circuit secondary current loop, but due to its structural limitation, make the snap-in between its occlusal end and " short circuit " target insecure or unreliable, easily cause the slippage from binding post or pressing plate or housing pin of its occlusal end, make the secondary current loop open circuit that meets accident, form high-voltage discharge and serious threat staff's life security; In addition; crocodile clip treats that for what consist of plain conductor short circuit current loop is comparatively convenient and swift, but for appearance, is set with the wire of insulating barrier, conventionally need to make brokenly line and process to divest insulating protective layer; not only complex operation, and conductive core line leaks outside and also will inevitably bring larger potential safety hazard.
Summary of the invention
The present invention be directed to deficiency of the prior art, provide a kind of transformation and distribution system secondary current loop quick short-circuit device, solved the short circuit insecure short circuit that easily causes in secondary current loop in prior art and put eely problem, solved for the wire with insulating barrier simultaneously and need to break the technical problem that line processing causes complex operation and has larger potential safety hazard.
For solving the problems of the technologies described above, technical scheme of the present invention is: the quick short-circuit device in a kind of transformation and distribution system secondary current loop, comprise short circuit wire, the two ends of described short circuit wire are connected with respectively terminal stud, and described terminal stud includes insulation shell and cuts into slices for cutting the metal of wire insulation open; Described insulation shell is comprised of upper and lower two the half housing docking that are flexible coupling, and between two described half housings, offers at least two threading endoporus; Described metal section bottom embeds in half housing, and top extends upward in the described threading endoporus of incision, also offers the cable clamping interface with the corresponding setting of described threading endoporus in metal section; The termination of described short circuit wire is inserted in threading endoporus and is snapped in cable clamping interface and is electrically connected to described upper metal section.
On one of them half housing, be connected with fastener, the edge of described fastener is provided with buckle convex edge, on second half housing, offers buckle slot, and buckle convex edge snaps in and in buckle slot, realizes the relatively fixing of two and half housings.
Described metal section is provided with two, and a slice is flush-mounted in superposed half housing, and another sheet is flush-mounted in half housing that is positioned at bottom, and two metal sections parallel setting.
Described cable clamping interface is the C type that notch inwardly shrinks.
The incision limit of described metal section is provided with incision cutting edge, and the longitudinal section of described incision cutting edge is tapered.
When the present invention uses, to in secondary current loop, treat that short circuit wire is placed in one in a through wires hole, then short circuit wire is placed in another through wires hole, with hawkbill, two and half housings are stepped up, wire is snapped in the cable clamping interface of metal section, and fastening fastener, unclamps hawkbill, just realized short circuit wire and in secondary current loop, treated that the reliable of short circuit wire is electrically connected to, the other end of short circuit wire is adopted and is carried out in the same way short circuit.For the wire that is set with insulating barrier, metal section can cut brokenly insulating barrier with realize with wire between be electrically connected to.Compared with prior art, the invention has the beneficial effects as follows: 1, metal section is set in insulation shell, for the wire that is set with insulating barrier, without extra broken line work for the treatment of, can realizes reliable electrical connection, simple to operation, safe; 2, be provided with fastener, upper and lower two and half housings are tightly fixed together, can guarantee reliably the short circuit effect in secondary current loop, in the situation that not being equipped with special-purpose electric current testing terminal, for providing safe and reliable short circuit, secondary current loop connects, for staff's life provides safety assurance; 3, in upper and lower two and half housings, be equipped with metal section, the cable clamping interface notch of metal section inwardly shrinks, and two above once cooperatively interacting when guaranteeing reliable electrical connection of metal section, have further prevented the slippage of cable clamping interface inside conductor, avoid secondary current loop surprisingly to open a way; 4, the incision limit of metal section is provided with the quick strip off wire insulation of incision cutting edge, and quick and easy for installation, operating efficiency is high.
Accompanying drawing explanation
Fig. 1 is the perspective view of binding post of the present invention.
Fig. 2 is the cutaway view of terminal stud of the present invention.
Wherein: 1. shorting stub; 2. insulation shell; 3a, the section of 3b. metal; 3a-1,3b-1. cable clamping interface; 4a, 4b. half housing; 4b-1. buckle slot; 5. threading endoporus; 6. fastener; 6a. buckle convex edge.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.Following examples are only for technical scheme of the present invention is more clearly described, and can not limit the scope of the invention with this.
As shown in Figure 1 and Figure 2, the quick short-circuit device in transformation and distribution system secondary current loop, comprises short circuit wire 1, and the two ends of short circuit wire 1 are connected with respectively terminal stud, and terminal stud includes insulation shell 2 and for cutting metal section 3a, the 3b of wire insulation open; Metal section 3a and metal section 3b parallel setting.Metal section 3a is flush-mounted in superposed half housing 4a, and metal section 3b is flush-mounted in the half housing 4b that is positioned at bottom.Insulation shell 2 bodies are comprised of upper and lower two half housing 4a, the 4b docking that are flexible coupling, and between half housing 4a and half housing 4b, offer at least two threading endoporus 5; Metal section 3b bottom embeds in half housing 4b, and top extends upward in incision threading endoporus 5, also offers the cable clamping interface 3b-1 with the 5 corresponding settings of threading endoporus on metal section 3b; Cable clamping interface 3b-1 is the C type that notch inwardly shrinks.Same, metal section 3a top embeds in half housing 4a, and bottom, in downward-extension incision threading endoporus 5, offers the cable clamping interface 3a-1 with the 5 corresponding settings of threading endoporus on metal section 3a; Cable clamping interface 3a-1 is also the C type that notch inwardly shrinks.During installation, the termination of short circuit wire 1 is inserted in threading endoporus 5 and is snapped in corresponding cable clamping interface, is electrically connected to upper metal section 3a, 3b.For guaranteeing that half housing 4a and half housing 4b are docking together closely, wherein on half housing 4a, be connected with fastener 6, the edge of fastener 6 is provided with buckle convex edge 6a, on half housing 4b, offer buckle slot 4b-1, buckle convex edge 6a snaps in and in buckle slot 4b-1, realizes the relative fixing of half housing 4a and half housing 4b.The incision limit of metal section 3 is provided with incision cutting edge, and the longitudinal section of incision cutting edge is tapered.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the technology of the present invention principle; can also make some improvement and distortion, these improvement and distortion also should be considered as protection scope of the present invention.
Claims (5)
1. the quick short-circuit device in transformation and distribution system secondary current loop, comprise short circuit wire, it is characterized in that, the two ends of described short circuit wire are connected with respectively terminal stud, and described terminal stud includes insulation shell and cuts into slices for cutting the metal of wire insulation open;
Described insulation shell is comprised of upper and lower two the half housing docking that are flexible coupling, and between two described half housings, offers at least two threading endoporus;
Described metal section bottom embeds in half housing, and top extends upward in the described threading endoporus of incision, also offers the cable clamping interface with the corresponding setting of described threading endoporus in metal section;
The termination of described short circuit wire is inserted in threading endoporus and is snapped in cable clamping interface and is electrically connected to described upper metal section.
2. the quick short-circuit device in transformation and distribution system secondary current according to claim 1 loop, it is characterized in that, on one of them half housing, be connected with fastener, the edge of described fastener is provided with buckle convex edge, on second half housing, offer buckle slot, buckle convex edge snaps in and in buckle slot, realizes the relatively fixing of two and half housings.
3. the quick short-circuit device in transformation and distribution system secondary current according to claim 1 loop, it is characterized in that, described metal section is provided with two, and a slice is flush-mounted in superposed half housing, another sheet is flush-mounted in half housing that is positioned at bottom, and two metal sections parallel setting.
4. according to the quick short-circuit device in transformation and distribution system secondary current loop described in any one in claims 1 to 3, it is characterized in that, described cable clamping interface is the C type that notch inwardly shrinks.
5. the quick short-circuit device in transformation and distribution system secondary current according to claim 4 loop, is characterized in that, the incision limit of described metal section is provided with incision cutting edge, and the longitudinal section of described incision cutting edge is tapered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410152519.1A CN103985985A (en) | 2014-04-16 | 2014-04-16 | Fast short circuit device of secondary current loop of power transformation and distribution system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410152519.1A CN103985985A (en) | 2014-04-16 | 2014-04-16 | Fast short circuit device of secondary current loop of power transformation and distribution system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103985985A true CN103985985A (en) | 2014-08-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410152519.1A Pending CN103985985A (en) | 2014-04-16 | 2014-04-16 | Fast short circuit device of secondary current loop of power transformation and distribution system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103985985A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112271464A (en) * | 2020-09-17 | 2021-01-26 | 深圳市大富网络技术有限公司 | Integrated wire connector |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87206697U (en) * | 1987-04-24 | 1988-03-23 | 李嘉葆 | Wire connector |
| CN2523036Y (en) * | 2001-09-09 | 2002-11-27 | 叶木林 | Puncture cable clamp |
| CN2821896Y (en) * | 2005-11-03 | 2006-09-27 | 刘仁臣 | Quick butt connector for electric wire |
| US20080142243A1 (en) * | 2006-12-18 | 2008-06-19 | Ford Motor Company | Wire inline t tap/splice |
| CN102509910A (en) * | 2011-10-20 | 2012-06-20 | 华为技术有限公司 | Jointing clamp |
| CN202308356U (en) * | 2011-10-31 | 2012-07-04 | 杭州得诚电力科技有限公司 | Fast wiring terminal |
| CN204011799U (en) * | 2014-04-16 | 2014-12-10 | 国家电网公司 | The quick short-circuit device in a kind of transformation and distribution system secondary current loop |
-
2014
- 2014-04-16 CN CN201410152519.1A patent/CN103985985A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87206697U (en) * | 1987-04-24 | 1988-03-23 | 李嘉葆 | Wire connector |
| CN2523036Y (en) * | 2001-09-09 | 2002-11-27 | 叶木林 | Puncture cable clamp |
| CN2821896Y (en) * | 2005-11-03 | 2006-09-27 | 刘仁臣 | Quick butt connector for electric wire |
| US20080142243A1 (en) * | 2006-12-18 | 2008-06-19 | Ford Motor Company | Wire inline t tap/splice |
| CN102509910A (en) * | 2011-10-20 | 2012-06-20 | 华为技术有限公司 | Jointing clamp |
| CN202308356U (en) * | 2011-10-31 | 2012-07-04 | 杭州得诚电力科技有限公司 | Fast wiring terminal |
| CN204011799U (en) * | 2014-04-16 | 2014-12-10 | 国家电网公司 | The quick short-circuit device in a kind of transformation and distribution system secondary current loop |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112271464A (en) * | 2020-09-17 | 2021-01-26 | 深圳市大富网络技术有限公司 | Integrated wire connector |
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Application publication date: 20140813 |
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