CN203895261U - Combined wire connector of secondary circuit short-circuiting wire of current/voltage transformer - Google Patents

Combined wire connector of secondary circuit short-circuiting wire of current/voltage transformer Download PDF

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Publication number
CN203895261U
CN203895261U CN201420193564.7U CN201420193564U CN203895261U CN 203895261 U CN203895261 U CN 203895261U CN 201420193564 U CN201420193564 U CN 201420193564U CN 203895261 U CN203895261 U CN 203895261U
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CN
China
Prior art keywords
current
voltage transformer
circuiting
shorting stub
short
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Expired - Lifetime
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CN201420193564.7U
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Chinese (zh)
Inventor
王世祥
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Shenzhen Power Supply Bureau Co Ltd
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Shenzhen Power Supply Bureau Co Ltd
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Priority to CN201420193564.7U priority Critical patent/CN203895261U/en
Application granted granted Critical
Publication of CN203895261U publication Critical patent/CN203895261U/en
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Expired - Lifetime legal-status Critical Current

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Abstract

The utility model provides a combined wire connector of a secondary circuit short-circuiting wire of a current/voltage transformer. The combined wire connector comprises a junction terminal, a short-circuiting wire and short-circuiting terminals, wherein a fixed connection point is formed at one end of the junction terminal, while an earth wire inserting hole is formed in the other end of the junction terminal; four short-circuiting terminals are arranged, and a terminal flat cable inserting hole is formed in one end of each short-circuiting terminal, and the other end of each short-circuiting terminal is connected with the fixed connection point of the junction terminal. The combined wire connector of the secondary circuit short-circuiting wire of the current/voltage transformer is convenient to use so that the speed of short-circuiting the current or voltage secondary circuit can be increased, and meanwhile, the phenomena such as unreliable short-circuiting, false connection and poor earth point are prevented in the process of short-circuiting with a current transformer or a voltage transformer, and therefore, normal operation of the electrical equipment is guaranteed.

Description

A kind of current-voltage transformer secondary circuit shorting stub combination the end of a thread
Technical field
The utility model relates to electric power system substation equipment maintenance and repair technical field, relates in particular to a kind of current-voltage transformer secondary circuit shorting stub combination the end of a thread.
Background technology
In relaying protection work, often need to be by secondary loop of mutual inductor short circuit, if the improper open circuit of secondary loop of current transformer that likely causes of short circuit method, generation high voltage burns electric equipment and even jeopardizes personal safety, same in voltage transformer performulation, in order to prevent the accuracy of the critical person and device security and guarantee test result, should be according to field condition, often need to be by Secondary Circuit of Potential Transformer short circuit ground connection, therefore the secondary circuit short circuit quality of current transformer and voltage transformer is of great significance electric equipment and personal safety tool.
At present, for the secondary circuit shorting stub on current transformer and voltage transformer, there is no unified standard, when shorting stub is connected with current transformer or is connected with voltage transformer, (in as voltage transformer performulation, the on-the-spot normal thin wire canoe that adopts causes short circuit unreliable easily to cause the bad phenomenon such as occur in short circuit process that short circuit is unreliable, virtual connection, earth point are bad, often cause accident to occur), thereby affect the normal operation of electric equipment, short circuit process complexity has reduced operating efficiency in addition.
Utility model content
The utility model embodiment technical problem to be solved is, a kind of current-voltage transformer secondary circuit shorting stub combination the end of a thread is provided, its curtage secondary circuit short circuit speed that improved easy to use, avoid simultaneously with current transformer or with voltage transformer short circuit process in, the phenomenon such as occur that short circuit is unreliable, virtual connection, earth point are bad, thus the normal operation of electric equipment guaranteed.
In order to solve the problems of the technologies described above, the utility model embodiment provides a kind of current-voltage transformer secondary circuit shorting stub combination the end of a thread, comprises tandem head, shorting stub and short circuit head; Wherein,
One end of described tandem head is formed with a fixed connection point, and the other end is formed with ground line pluging handhole;
Described short circuit head has four, and one end of each short circuit head is all formed with terminal board line pluging handhole, and the other end is all connected with the fixed connection point of described tandem head by a shorting stub.
Wherein, described tandem head is made by metallic conductor, and its outer surface is coated with insulating barrier.
Wherein, described shorting stub is made by metallic conductor, and its outer surface is coated with insulating barrier.
Wherein, described each short circuit head is made by metallic conductor, and its outer surface is coated with insulating barrier.
Wherein, the connected mode of described each short circuit head and described shorting stub for bundle connects, hot melt socket or by clamp clamping.
Wherein, the connected mode of the fixed connection point of described shorting stub and described tandem head for bundle connects, hot melt socket or by clamp clamping.
Implement the utility model embodiment, there is following beneficial effect:
In the utility model embodiment, owing to only splicing ear need being arranged to the test wire of phase line end, be connected with the terminal board line pluging handhole of short circuit head respectively, ground wire is connected with the ground line pluging handhole of tandem head simultaneously, its curtage secondary circuit short circuit speed that improved easy to use, and short circuit is reliable, avoid occurring the phenomenons such as virtual connection, imperfect earth, thereby guaranteed the normal operation of electric equipment.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, the accompanying drawing that obtains other according to these accompanying drawings still belongs to category of the present utility model.
The structural representation of the end of a thread is combined in the current-voltage transformer secondary circuit shorting stub that Fig. 1 provides for the utility model embodiment;
The application schematic diagram of the end of a thread is combined in the current-voltage transformer secondary circuit shorting stub that Fig. 2 provides for the utility model embodiment;
The another application schematic diagram of the end of a thread is combined in the current-voltage transformer secondary circuit shorting stub that Fig. 3 provides for the utility model embodiment;
In figure: 1-tandem head, 11-fixed connection point, 12-ground line pluging handhole, 2-shorting stub, 3-short circuit head, 31-terminal board line pluging handhole, 4-terminal board, 41-phase wiring connector, 5-test wire, L-current transformer or voltage transformer side, R-protects side.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, in the utility model embodiment, be a kind of current-voltage transformer secondary circuit shorting stub combination the end of a thread, comprise tandem 1, shorting stub 2 and short circuit head 3; Wherein,
One end of tandem 1 is formed with a fixed connection point 11, and the other end is formed with ground line pluging handhole 12, and this ground line pluging handhole 12 is for being connected with ground wire;
Short circuit head 3 has four, one end of each short circuit head 3 is all formed with terminal board line pluging handhole 31, this terminal board line pluging handhole 31 is for being connected with test wire, the other end is all connected by the fixed connection point 11 of a shorting stub 2 and tandem 1, wherein, test wire, for being connected with the phase line end (as A, B, C and N phase line end) on terminal board, can being delivered on short circuit head 3 by test wire the positron-electron in phase line, and discharging to the earth.
For the ease of the fail safe of conduction and conduction, tandem 1, shorting stub 2 and short circuit head 3 can adopt various electric conducting materials to make, and have insulation or other electric discharge safeguard procedures.In the utility model, tandem 1 is made by metallic conductor, and its outer surface is coated with insulating barrier; Shorting stub 2 is made by metallic conductor, and its outer surface is coated with insulating barrier; Each short circuit head 3 is made by metallic conductor, and its outer surface is coated with insulating barrier.
Further, the connected mode of each short circuit head 3 and shorting stub 2 for bundle connects, hot melt socket or by clamp clamping.
Further, the connected mode of the fixed connection point 11 of shorting stub 2 and tandem 1 for bundle connects, hot melt socket or by clamp clamping.
Refer to shown in Fig. 2 and Fig. 3, the concrete application scenarios that the end of a thread is combined in the current-voltage transformer secondary circuit shorting stub that the utility model is implemented to provide further illustrates:
Four short circuit heads 3 are 2cm(centimetre) length, for the ease of difference, the insulating barrier of its outer surface is corresponding yellowly, green, redness and the black of being coated with respectively;
Shorting stub 2 is the length of 10cm, quantity has four, is connected respectively with each short circuit head 3, and the insulating barrier of its outer surface is corresponding to the color of the insulating barrier of the outer surface of short circuit head 3, the color that is short circuit head 3 is yellow, and the color of the shorting stub 2 being connected with yellow short circuit head 3 is also for yellow;
The length that tandem 1 is 2cm, the insulating barrier of its outer surface is painted yellow green.
The 1st step: adopt four test wires 5, one end Band clamp or the fork of this test wire 5, the exposed 2cm metallic conductor of other end band, Band clamp or fork one end are connected with the terminal board line pluging handhole 31 of short circuit head 3 on this shorting stub switchover combination the end of a thread successively, one end with exposed 2cm metallic conductor is connected with A, B, C and N phase line end on terminal board 5 successively, and check whether connection is solid and reliable, now the phase wiring connector 41 of current transformer or voltage transformer side L and protection side R is connection status (as shown in Figure 2);
The 2nd step: adopt an identical test wire 5, the ground line pluging handhole 12 of one end of Band clamp or fork and tandem on this shorting stub switchover combination the end of a thread 1 is connected, by one end ground connection with exposed 2cm metallic conductor, and check connect whether solid and reliable;
The 3rd step: treat that relaying protection completes, after needing the secondary circuit of turn-off current instrument transformer or the performulation of voltage transformer to complete, according to N, C, B, A order, by the phase wiring connector 41 that connects current transformer or voltage transformer side L and protection side R on terminal board 5, be off-state (as shown in Figure 3) successively;
The 4th step: remove respectively test wire 5 and be connected with A, B, C and N phase line end on terminal board 5;
The 5th step: remove test wire 5 and be connected with the earth;
The 6th step: remove respectively test wire 5 and tandem 1 and short circuit head 1 and be connected.
Implement the utility model embodiment, there is following beneficial effect:
In the utility model embodiment, owing to only splicing ear need being arranged to the test wire of phase line end, be connected with the terminal board line pluging handhole of short circuit head respectively, ground wire is connected with the ground line pluging handhole of tandem head simultaneously, its curtage secondary circuit short circuit speed that improved easy to use, and short circuit is reliable, avoid occurring the phenomenons such as virtual connection, imperfect earth, thereby guaranteed the normal operation of electric equipment.
Above disclosed is only a kind of preferred embodiment of the utility model, certainly can not limit with this interest field of the utility model, and the equivalent variations of therefore doing according to the utility model claim, still belongs to the scope that the utility model is contained.

Claims (6)

1. a current-voltage transformer secondary circuit shorting stub combination the end of a thread, is characterized in that, comprises tandem head (1), shorting stub (2) and short circuit head (3); Wherein,
One end of described tandem head (1) is formed with a fixed connection point (11), and the other end is formed with ground line pluging handhole (12);
Described short circuit head (3) has four, and one end of each short circuit head (3) is all formed with terminal board line pluging handhole (31), and the other end is all connected with the fixed connection point (11) of described tandem head (1) by a shorting stub (2).
2. current-voltage transformer secondary circuit shorting stub combination the end of a thread as claimed in claim 1, is characterized in that, described tandem head (1) is made by metallic conductor, and its outer surface is coated with insulating barrier.
3. current-voltage transformer secondary circuit shorting stub combination the end of a thread as claimed in claim 1, is characterized in that, described shorting stub (2) is made by metallic conductor, and its outer surface is coated with insulating barrier.
4. current-voltage transformer secondary circuit shorting stub combination the end of a thread as claimed in claim 1, is characterized in that, described each short circuit head (3) is made by metallic conductor, and its outer surface is coated with insulating barrier.
5. the current-voltage transformer secondary circuit shorting stub as described in any one in claim 1 to 4 combination the end of a thread, is characterized in that, the connected mode of described each short circuit head (3) and described shorting stub (2) for bundle connects, hot melt socket or by clamp clamping.
6. the end of a thread is combined in the current-voltage transformer secondary circuit shorting stub as described in any one in claim 1 to 4, it is characterized in that, the connected mode of the fixed connection point (11) of described shorting stub (2) and described tandem head (1) for bundle connects, hot melt socket or by clamp clamping.
CN201420193564.7U 2014-04-21 2014-04-21 Combined wire connector of secondary circuit short-circuiting wire of current/voltage transformer Expired - Lifetime CN203895261U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420193564.7U CN203895261U (en) 2014-04-21 2014-04-21 Combined wire connector of secondary circuit short-circuiting wire of current/voltage transformer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420193564.7U CN203895261U (en) 2014-04-21 2014-04-21 Combined wire connector of secondary circuit short-circuiting wire of current/voltage transformer

Publications (1)

Publication Number Publication Date
CN203895261U true CN203895261U (en) 2014-10-22

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105717330A (en) * 2014-12-04 2016-06-29 上海西门子线路保护系统有限公司 Dielectric test connection device for low voltage switch
CN108899715A (en) * 2018-07-05 2018-11-27 上海思方电气技术有限公司 A kind of single-phase one point of multiloop a little concentrates the anti-short circuit connector of PT of ground connection

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105717330A (en) * 2014-12-04 2016-06-29 上海西门子线路保护系统有限公司 Dielectric test connection device for low voltage switch
CN108899715A (en) * 2018-07-05 2018-11-27 上海思方电气技术有限公司 A kind of single-phase one point of multiloop a little concentrates the anti-short circuit connector of PT of ground connection

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Granted publication date: 20141022

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