CN105319398A - Locking type wire connection device of upflow test wire nose - Google Patents
Locking type wire connection device of upflow test wire nose Download PDFInfo
- Publication number
- CN105319398A CN105319398A CN201410269537.8A CN201410269537A CN105319398A CN 105319398 A CN105319398 A CN 105319398A CN 201410269537 A CN201410269537 A CN 201410269537A CN 105319398 A CN105319398 A CN 105319398A
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- China
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- main frame
- strain detecting
- detecting main
- lifting device
- upflow
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Abstract
The present invention relates to a locking type wire connection device of an upflow test wire nose. The wire connection device has a locking mechanism. When the wire connection device of an upflow device is not firmly connected, the upflow device is locked and can not be started. Only when wire connection device of an upflow device is firmly connected and the wire connection device generates sufficient elastic strain, the locking of an upflow device switch loop can be released. Through the method, the adverse consequences caused by the condition that the upflow device wire connection device and an upflow test wire are not tightened and the upflow device is started can be eliminated. The locking type wire connection device can be used in a substation secondary system debugging process.
Description
Technical field
The present invention relates to a kind of enclosed type termination, particularly relate to a kind of enclosed type termination of rising test line line nose.
Background technology
When transformer station secondary system debugging, need to carry out primary equipment rising test, namely apply big current to primary circuit, be mainly used in the test of current transformer.
At present, the method for up-flow is connected with once holding with two of tested mutual inductor respectively with two output terminals of current lifting device, then carries out applying big current as 100 amperes ~ 2000 amperes; Then observe and record in the enterprising line number value of the screen of measure and control device, protective relaying device.
Because the electric current applied is very large, if do not have good contact with the binding post of up-flow device and compress, there are the slightly large words of resistance value, that this temperature can be caused to raise is very fast, safe, the impact that affects current lifting device test precision, increase meaningless energy resource consumption.But, the termination on present widely used current lifting device often be binding post, operating personnel once error will forget test wire binding post and test wire virtual connection, cause this temperature sharply to raise and cause adverse consequences.
Summary of the invention
(1) technical matters that will solve
The technical problem to be solved in the present invention is just to provide a kind of enclosed type termination, avoids the temperature of the current lifting device caused by termination loose contact sharply to raise.
(2) technical scheme
In order to solve the problems of the technologies described above, the invention provides a kind of enclosed type termination of rising test line line nose, it is characterized in that, comprise binding thread, binding thread through open connect wiring nose end nostril after twist be connected in the outlet threaded hole of current lifting device outgoing line device, be drilled with movable little unthreaded hole in the lower end of outlet threaded hole;
Be installed with insulation movable rod in movable little unthreaded hole, the lower end of insulation movable rod withstands on above the shift knob end of spring reset normally closed switch; The left installation slotted hole of spring reset normally closed switch, right installation slotted hole are arranged on the below of current lifting device outgoing line device respectively with left mounting screw, right mounting screw; Spring reset normally closed switch there are left contact lug end, right contact lug end; Left contact lug end is wired on the right terminals of strain detecting main frame of strain detecting main frame by serial connection; The negative terminal of strain detecting main frame is connected on foil gauge by stube cable under foil gauge, and the other end of foil gauge is connected to the anode of strain detecting main frame by stube cable on foil gauge; Strain detecting main frame is provided with the left terminals of strain detecting main frame, right contact lug end, the left terminals of strain detecting main frame are used for being connected on current lifting device and start in control loop.
Described strain detecting main frame (18) is provided with alternating current 220V power supply live wire end L, zero line side N.
(3) beneficial effect
The enclosed type termination of a kind of rising test line line nose of the present invention, has the termination of blocking mechanism, and when the termination of current lifting device does not firmly connect, then locking current lifting device, makes it start; Only have the termination when current lifting device firmly to connect, and when making termination produce enough elastic strains, just remove the locking to current lifting device switching circuitry.Can be eliminated by this way and just not start current lifting device because current lifting device termination and rising test line are tightened and cause adverse consequences.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1: the structural representation of the enclosed type termination of a kind of rising test line line nose provided by the invention;
In figure: 1, wiring nose; 2, binding thread; 3, current lifting device outgoing line device; 4, outlet threaded hole; 5, insulate movable rod; 6, spring reset normally closed switch; 7, right installation slotted hole; 8, right contact lug end; 9, right mounting screw; 10, left mounting screw; 11, left installation slotted hole; 12, left contact lug end; 13, electric wire is connected in series; 14, the right terminals of main frame; 15, stube cable under foil gauge; 16, foil gauge; 17, stube cable on foil gauge; 18, strain detecting main frame; 19, the left terminals of strain detecting main frame; 20, nostril; 21, movable little unthreaded hole; 22, shift knob end.
Embodiment
Below in conjunction with drawings and Examples, embodiments of the present invention are described in further detail.Following examples for illustration of the present invention, but can not be used for limiting the scope of the invention.
As shown in Figure 1, the enclosed type termination of a kind of rising test line line nose of the present embodiment, comprise binding thread 2, binding thread 2 is connected in the outlet threaded hole 4 of current lifting device outgoing line device 3 through opening rear the twisting in the nostril 20 connecting wiring nose 1 end, is drilled with movable little unthreaded hole 21 in the lower end of outlet threaded hole 4;
Be installed with insulation movable rod 5 in movable little unthreaded hole 21, the lower end of insulation movable rod 5 withstands on above the shift knob end 22 of spring reset normally closed switch 6; The left installation slotted hole 11 of spring reset normally closed switch 6, right installation slotted hole 7 are arranged on the below of current lifting device outgoing line device 3 respectively with left mounting screw 10, right mounting screw 9; Spring reset normally closed switch 6 there are left contact lug end 12, right contact lug end 8; Left contact lug end 12 is connected on the right terminals 14 of strain detecting main frame of strain detecting main frame 18 by serial connection electric wire 13; The negative terminal of strain detecting main frame 18 is connected on foil gauge 16 by stube cable under foil gauge 15, and the other end of foil gauge 16 is connected to the anode of strain detecting main frame 18 by stube cable on foil gauge 17; Strain detecting main frame 18 is provided with the left terminals 19 of strain detecting main frame, the left terminals 19 of right contact lug end 8, strain detecting main frame start in control loop for being connected on current lifting device.
Described strain detecting main frame 18 is provided with alternating current 220V power supply live wire end L, zero line side N.
Do not accompany when being connected wiring nose 1 between binding thread 2 with current lifting device outgoing line device 3, operating personnel press current lifting device start button, can not start current lifting device.Because binding thread 2 is tightened, the insulation movable rod 5 be through in movable little unthreaded hole 21 ejects downwards by the bottom of binding thread 2, and then making the separated of left contact lug end 12, right contact lug end 8, the loop at this moment between right contact lug end 8, the left terminals of strain detecting main frame 19 is obstructed.Operating personnel press current lifting device start button, do not connect owing to starting control loop and then can not start.
Accompany between binding thread 2 with current lifting device outgoing line device 3 and be connected wiring nose 1, but when not tightening, operating personnel press current lifting device start button, can not start current lifting device.If binding thread 2 is not tightened, at this moment strain detecting main frame 18 detects that enough deformation does not occur foil gauge 16, and then controls to make not connect between the left terminals of strain detecting main frame 19 and the right terminals 14 of strain detecting main frame.Although, although the insulation movable rod 5 be through in movable little unthreaded hole 21 does not eject downwards by the bottom of binding thread 2, make to connect between left contact lug end 12, right contact lug end 8, but the loop between right contact lug end 8, the left terminals of strain detecting main frame 19 is obstructed.Operating personnel press current lifting device start button, do not connect owing to starting control loop and then can not start.Avoid the problem of not tightened by current lifting device output connection device and just starting current lifting device, avoid the generation of adverse consequences.
Above embodiment is only for illustration of the present invention, but not limitation of the present invention.Although with reference to embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, various combination, amendment or equivalent replacement are carried out to technical scheme of the present invention, do not depart from the spirit and scope of technical solution of the present invention, all should be encompassed in the middle of right of the present invention.
Claims (2)
1. the enclosed type termination of a rising test line line nose, it is characterized in that, comprise binding thread (2), binding thread (2) through open connect wiring nose (1) end nostril (20) afterwards twist be connected in the outlet threaded hole (4) of current lifting device outgoing line device (3), be drilled with movable little unthreaded hole (21) in the lower end of outlet threaded hole (4);
Be installed with insulation movable rod (5) in movable little unthreaded hole (21), the lower end of insulation movable rod (5) withstands on shift knob end (22) top of spring reset normally closed switch (6); The left installation slotted hole (11) of spring reset normally closed switch (6), right installation slotted hole (7) are arranged on the below of current lifting device outgoing line device (3) respectively with left mounting screw (10), right mounting screw (9); Spring reset normally closed switch (6) there are left contact lug end (12), right contact lug end (8); Left contact lug end (12) is connected on the right terminals of strain detecting main frame (14) of strain detecting main frame (18) by serial connection electric wire (13); The negative terminal of strain detecting main frame (18) is connected on foil gauge (16) by stube cable under foil gauge (15), and the other end of foil gauge (16) is connected to the anode of strain detecting main frame (18) by stube cable on foil gauge (17); Strain detecting main frame (18) is provided with the left terminals of strain detecting main frame (19), right contact lug end (8), the left terminals of strain detecting main frame (19) start in control loop for being connected on current lifting device.
2. the enclosed type termination of rising test line line nose according to claim 1, is characterized in that, described strain detecting main frame (18) is provided with alternating current 220V power supply live wire end L, zero line side N.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410269537.8A CN105319398B (en) | 2014-06-17 | 2014-06-17 | A kind of enclosed type termination of rising test line line nose |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410269537.8A CN105319398B (en) | 2014-06-17 | 2014-06-17 | A kind of enclosed type termination of rising test line line nose |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105319398A true CN105319398A (en) | 2016-02-10 |
| CN105319398B CN105319398B (en) | 2018-03-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410269537.8A Active CN105319398B (en) | 2014-06-17 | 2014-06-17 | A kind of enclosed type termination of rising test line line nose |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105319398B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101644751A (en) * | 2009-08-11 | 2010-02-10 | 陕西电力科学研究院 | Method for raising distributed type large current of GIS bushing type current transformer |
| CN102570327A (en) * | 2012-03-05 | 2012-07-11 | 青州市供电公司 | Cable clamp for one-time current rise of closed switch cabinet |
| CN202471945U (en) * | 2012-03-12 | 2012-10-03 | 山东电力集团公司枣庄供电公司 | Combined current raising box |
| CN202870124U (en) * | 2012-10-31 | 2013-04-10 | 渭南供电局 | Connecting device of transformer test wire clamp and cross-core current rise wire |
| CN203502439U (en) * | 2013-10-10 | 2014-03-26 | 平原县供电公司 | Spiral pressing type up-flow wire clamp |
| CN203551764U (en) * | 2013-11-08 | 2014-04-16 | 国家电网公司 | Mutual inductor through-rod mechanism of low-voltage current transformer automatic detection line |
| US20140111237A1 (en) * | 2012-10-24 | 2014-04-24 | Multitest Elektronische Systeme Gmbh | Contact spring for a testing base for the high current testing of an electronic component |
-
2014
- 2014-06-17 CN CN201410269537.8A patent/CN105319398B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101644751A (en) * | 2009-08-11 | 2010-02-10 | 陕西电力科学研究院 | Method for raising distributed type large current of GIS bushing type current transformer |
| CN102570327A (en) * | 2012-03-05 | 2012-07-11 | 青州市供电公司 | Cable clamp for one-time current rise of closed switch cabinet |
| CN202471945U (en) * | 2012-03-12 | 2012-10-03 | 山东电力集团公司枣庄供电公司 | Combined current raising box |
| US20140111237A1 (en) * | 2012-10-24 | 2014-04-24 | Multitest Elektronische Systeme Gmbh | Contact spring for a testing base for the high current testing of an electronic component |
| CN202870124U (en) * | 2012-10-31 | 2013-04-10 | 渭南供电局 | Connecting device of transformer test wire clamp and cross-core current rise wire |
| CN203502439U (en) * | 2013-10-10 | 2014-03-26 | 平原县供电公司 | Spiral pressing type up-flow wire clamp |
| CN203551764U (en) * | 2013-11-08 | 2014-04-16 | 国家电网公司 | Mutual inductor through-rod mechanism of low-voltage current transformer automatic detection line |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105319398B (en) | 2018-03-06 |
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| CB03 | Change of inventor or designer information |
Inventor after: Li Rui Inventor after: Zhang Yue Inventor after: Li Jinquan Inventor after: Kang Yinzhu Inventor after: Pang Shuangli Inventor after: Zhang Xiaomin Inventor after: Ma Zhenguo Inventor after: Hao Wei Inventor after: Du Ming Inventor after: Du Dienan Inventor after: Sun Ruihao Inventor before: Li Rui Inventor before: Ma Zhenguo Inventor before: Hao Wei Inventor before: Sun Ruihao Inventor before: Zhang Yue Inventor before: Li Jinquan |
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