CN105319398B - A kind of enclosed type termination of rising test line line nose - Google Patents

A kind of enclosed type termination of rising test line line nose Download PDF

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Publication number
CN105319398B
CN105319398B CN201410269537.8A CN201410269537A CN105319398B CN 105319398 B CN105319398 B CN 105319398B CN 201410269537 A CN201410269537 A CN 201410269537A CN 105319398 B CN105319398 B CN 105319398B
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China
Prior art keywords
main frame
lifting device
line
current lifting
strain detecting
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CN201410269537.8A
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Chinese (zh)
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CN105319398A (en
Inventor
李�瑞
亢银柱
庞双丽
张晓民
马振国
郝伟
杜明
杜轶南
孙瑞浩
张悦
李晋泉
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Electric Power Research Institute of State Grid Shanxi Electric Power Co Ltd
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Electric Power Research Institute of State Grid Shanxi Electric Power Co Ltd
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Abstract

The present invention relates to a kind of enclosed type termination of rising test line line nose, has the termination of blocking mechanism, when the termination of current lifting device does not connect firmly, then locking current lifting device, makes it not start;Only when the termination of current lifting device firmly connects, and make it that termination produces enough elastic strains, the locking to current lifting device switching circuitry is just released.It can be eliminated by this method because current lifting device termination and rising test line are not tightened and just start current lifting device to trigger adverse consequences.It can operate with transformer station secondary system debugging process.

Description

A kind of enclosed type termination of rising test line line nose
Technical field
The present invention relates to the enclosed type wiring dress of a kind of enclosed type termination, more particularly to a kind of rising test line line nose Put.
Background technology
, it is necessary to carry out primary equipment rising test when transformer station secondary system is debugged, that is, apply high current to one Minor loop, it is mainly used in the experiment of current transformer.
At present, the method for up-flow be with two output ends of current lifting device with once held with two of tested transformer respectively into Row connection, then carry out applying such as 100 amperes~2000 amperes of high current;Then in measure and control device, the screen of protective relaying device The enterprising line number value of curtain is observed and recorded.
Because the electric current of application is very big, if there is no good contact with the binding post of up-flow device and compressing, resistance be present Be worth it is slightly larger if can cause temperature rise quickly, the safety that influences current lifting device, the precision for influenceing experiment, the meaningless energy of increase Source consumes.But the termination on very widely used today current lifting device often be binding post, operating personnel are once slip up It will forget test wire binding post and test wire virtual connection, causing the temperature drastically to raise causes adverse consequences.
The content of the invention
(1) technical problems to be solved
The technical problem to be solved in the present invention is just to provide a kind of enclosed type termination, avoids by termination contact not The temperature of current lifting device drastically raises caused by good.
(2) technical scheme
In order to solve the above-mentioned technical problem, the invention provides a kind of enclosed type termination of rising test line line nose, It is characterised in that it includes fastening thread, fastening thread passes through be opened in the nostril of connection wiring nose end after twist-on in current lifting device In the outlet screwed hole of outgoing line device, the small unthreaded hole of activity is drilled with the lower end of outlet screwed hole;
Insulation movable rod is installed with the small unthreaded hole of activity, the lower end for the movable rod that insulate withstands on the switch of spring reset normally closed switch Above turret terminal;The left installation slotted hole of spring reset normally closed switch, right installation slotted hole are respectively with left mounting screw, right installation Screw is arranged on the lower section of current lifting device outgoing line device;There are left contact lug end, right contact lug end on spring reset normally closed switch; Left contact lug end is wired on the right terminals of strain detecting main frame of strain detecting main frame by concatenation;Strain detecting master The negative terminal of machine is connected on foil gauge by connecting cable under foil gauge, and the other end of foil gauge passes through connecting cable on foil gauge It is connected to the anode of strain detecting main frame;The left terminals of strain detecting main frame, right contact lug are installed on strain detecting main frame End, the left terminals of strain detecting main frame are used to be connected in current lifting device startup control loop.
The strain detecting main frame (18) is provided with alternating current 220V power supply zero line L, zero line side N.
(3) beneficial effect
A kind of enclosed type termination of rising test line line nose of the present invention, there is the termination of blocking mechanism, when When the termination of current lifting device does not connect firmly, then locking current lifting device, makes it not start;Only when the wiring of current lifting device fills When putting firm connection, and make it that termination produces enough elastic strains, the locking to current lifting device switching circuitry is just released.It is logical Crossing this method can eliminate because current lifting device termination and rising test line are not tightened and triggered not with regard to starting current lifting device Good consequence.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1:A kind of structural representation of the enclosed type termination of rising test line line nose provided by the invention;
In figure:1st, wiring nose;2nd, fastening thread;3rd, current lifting device outgoing line device;4th, outlet screwed hole;5th, insulation activity Rod;6th, spring reset normally closed switch;7th, right installation slotted hole;8th, right contact lug end;9th, right mounting screw;10th, left installation spiral shell Nail;11st, left installation slotted hole;12nd, left contact lug end;13rd, electric wire is concatenated;14th, the right terminals of main frame;15th, connect under foil gauge Connect cable;16th, foil gauge;17th, connecting cable on foil gauge;18th, strain detecting main frame;19th, the left terminals of strain detecting main frame; 20th, nostril;21st, the small unthreaded hole of activity;22nd, shift knob end.
Embodiment
Embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples.Following examples are used for Illustrate the present invention, but can not be used for limiting the scope of the present invention.
As shown in figure 1, a kind of enclosed type termination of rising test line line nose of the present embodiment, including fastening thread 2, Fastening thread 2, which passes through, is opened in behind the nostril 20 of the end of connection wiring nose 1 twist-on in the outlet screwed hole of current lifting device outgoing line device 3 In 4, the small unthreaded hole 21 of activity is drilled with the lower end of outlet screwed hole 4;
Insulation movable rod 5 is installed with the small unthreaded hole 21 of activity, the lower end of insulation movable rod 5 withstands on spring reset normally closed switch 6 The top of shift knob end 22;The left installation slotted hole 11 of spring reset normally closed switch 6, right installation slotted hole 7 are respectively with left peace Cartridge screw 10, right mounting screw 9 are arranged on the lower section of current lifting device outgoing line device 3;There is left contact to connect on spring reset normally closed switch 6 Line end 12, right contact lug end 8;The strain that left contact lug end 12 is connected to strain detecting main frame 18 by concatenating electric wire 13 is examined Survey on the right terminals 14 of main frame;The negative terminal of strain detecting main frame 18 is connected to foil gauge 16 by connecting cable under foil gauge 15 On, the other end of foil gauge 16 is connected to the anode of strain detecting main frame 18 by connecting cable on foil gauge 17;Strain detecting Strain detecting main frame left terminals 19 are installed, right contact lug end 8, the left terminals 19 of strain detecting main frame are used on main frame 18 Current lifting device is connected on to start in control loop.
The strain detecting main frame 18 is provided with alternating current 220V power supply zero line L, zero line side N.
When not accompanying connection wiring nose 1 between fastening thread 2 and current lifting device outgoing line device 3, operating personnel press liter Flow device start button, it is impossible to start current lifting device.Because fastening thread 2 is tightened, the bottom of fastening thread 2 will be through the small unthreaded hole of activity Insulation movable rod 5 in 21 ejects downwards, so cause left contact lug end 12, right contact lug end 8 it is separated, it is at this moment right Loop between contact lug end 8, the left terminals 19 of strain detecting main frame is obstructed.Operating personnel press current lifting device start button, Because startup control loop is not switched on and then can not be started.
When accompanying connection wiring nose 1 between fastening thread 2 and current lifting device outgoing line device 3, but not tightening, operator Member presses current lifting device start button, can not start current lifting device.If fastening thread 2 is not tightened, at this moment strain detecting main frame 18 Foil gauge 16 is detected without the enough deformation of generation, and then controls and causes the left terminals 19 of strain detecting main frame and strain detecting It is not switched between the right terminals 14 of main frame.Although the insulation being through in the small unthreaded hole 21 of activity is not lived in the bottom of fastening thread 2 Although dynamic rod 5 ejects downwards so that connected between left contact lug end 12, right contact lug end 8, right contact lug end 8th, the loop between the left terminals 19 of strain detecting main frame is obstructed.Operating personnel press current lifting device start button, are controlled due to starting Loop processed is not switched on and then can not started.Avoid not tighten current lifting device output connection device and just start asking for current lifting device Topic, avoids the generation of adverse consequences.
Embodiment of above is merely to illustrate the present invention, rather than limitation of the present invention.Although with reference to embodiment to this hair It is bright to be described in detail, it will be understood by those within the art that, to technical scheme carry out it is various combination, Modification or equivalent substitution, without departure from the spirit and scope of technical solution of the present invention, the right that all should cover in the present invention is wanted Ask among scope.

Claims (2)

1. a kind of enclosed type termination of rising test line line nose, it is characterised in that including fastening thread (2), fastening thread (2) pass through and be opened in the nostril (20) for connecting wiring nose (1) end outlet screwed hole of the twist-on in current lifting device outgoing line device (3) afterwards (4) in, the small unthreaded hole (21) of activity is drilled with the lower end of outlet screwed hole (4);
Insulation movable rod (5) is installed with the small unthreaded hole (21) of activity, the lower end of insulation movable rod (5) withstands on spring reset normally closed switch (6) above shift knob end (22);The left installation slotted hole (11) of spring reset normally closed switch (6) and right installation slotted hole (7) lower section of current lifting device outgoing line device (3) is arranged on left mounting screw (10) and right mounting screw (9) respectively;Spring reset There are left contact lug end (12) and right contact lug end (8) on normally closed switch (6);Left contact lug end (12) is by concatenating electric wire (13) it is connected on the right terminals of strain detecting main frame (14) of strain detecting main frame (18);The negative terminal of strain detecting main frame (18) It is connected to by connecting cable under foil gauge (15) on foil gauge (16), the other end of foil gauge (16) on foil gauge by connecting Cable (17) is connected to the anode of strain detecting main frame (18);A strain detecting main frame left side is installed on strain detecting main frame (18) to connect Line end (19), right contact lug end (8) and the left terminals of strain detecting main frame (19) control back for being connected on current lifting device startup Lu Zhong.
2. the enclosed type termination of rising test line line nose according to claim 1, it is characterised in that the strain inspection Survey main frame (18) and be provided with alternating current 220V power supply zero line L and zero line side N.
CN201410269537.8A 2014-06-17 2014-06-17 A kind of enclosed type termination of rising test line line nose Active CN105319398B (en)

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

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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

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Citations (6)

* Cited by examiner, † Cited by third party
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

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2725363B9 (en) * 2012-10-24 2015-03-25 Multitest elektronische Systeme GmbH Contact spring for a test socket for the high power testing of an electronic component

Patent Citations (6)

* Cited by examiner, † Cited by third party
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

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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

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Inventor before: Sun Ruihao

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