CN212904988U

CN212904988U - Short circuit device for quick short circuit or cross-over connection of secondary current loop

Info

Publication number: CN212904988U
Application number: CN202020790405.0U
Authority: CN
Inventors: 孙开军; 朱星宇
Original assignee: Guizhou Kanghe Technology Co ltd
Current assignee: Guizhou Kanghe Technology Co ltd
Priority date: 2020-05-13
Filing date: 2020-05-13
Publication date: 2021-04-06
Anticipated expiration: 2030-05-13

Abstract

The utility model discloses a short connector is used in quick short circuit of secondary current return circuit or cross-over connection, which comprises a body, the body is inside to be provided with along body major axis direction parallel arrangement's joint socket in proper order, and each joint socket includes a joint jack at least, carry out short circuit or cross-over connection setting between the joint socket in advance. The utility model discloses novel structure, weight is suitable, can design the demand that the short connector subassembly of multiple difference satisfies the short cross-over connection of test wire to different equipment types. Furthermore, the operation steps can be reduced, the operation time is shortened, and the test error rate and the operation risk are reduced by matching the female seat.

Description

Short circuit device for quick short circuit or cross-over connection of secondary current loop

Technical Field

The utility model relates to a relay protection technical field, in particular to short connector is used in quick short circuit of secondary current return circuit or cross-over connection.

Background

In a transformer substation, a plurality of sets of relay protection and safety automation equipment commonly use a group of secondary windings of a current transformer, and when one set of protection or safety automation equipment needs to be stopped for testing during testing, due to the fact that a current loop is related, the tail end of the related current loop needs to be in short circuit or bridged connection, so that misoperation of other protection or safety automation equipment is prevented. Particularly, when primary equipment is not stopped and a current loop used by protection automation equipment needing a stopping test does not belong to a tail end, the operation risk is extremely high, firstly, other protection misoperation of a tail end string of the current loop cannot be caused by the test, and secondly, other protection automation equipment of the tail end string cannot be refused to operate or forced to stop operating after the current loop of the equipment to be tested is cut off; when the situation is met, the polarity ends of the phases of the operating secondary current loop A, B, C, N need to be respectively bridged to the tail ends by using a test wire or a copper core wire, and the current short connecting piece of the shutdown equipment is cut off, and the measure is carried out by using the current short connecting piece (wire) or the test wire for a long time in a double-person matching manner, so that the steps are complex and the fault tolerance rate is low.

In order to solve the current defects, a plurality of short connector assemblies suitable for different manufacturers are necessary to be designed, and the requirements of different manufacturers, different bridging and short connection conditions are quickly and accurately finished.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a short circuit device for quick short circuit or cross-over connection of secondary current loop. The problems in the background art can be overcome.

The utility model aims at realizing through the following technical scheme:

the utility model discloses a short connector is used in quick short circuit of secondary current return circuit or cross-over connection, which comprises a body, the body is inside to be provided with along body major axis direction parallel arrangement's joint socket in proper order, and each joint socket includes a joint jack at least, carry out short circuit or cross-over connection setting in advance between the joint socket.

In particular, the connector receptacles of adjacent connector receptacles are vertically aligned in series along the longitudinal axis of the body.

Particularly, the body includes closing cap and short circuit ware base, be connected through detachable structure between closing cap and the short circuit ware base, connect the socket embedding and be fixed in the recess that closing cap and short circuit ware base inside correspond the setting.

In particular, the body adopts a modular structure, each module comprises at least one connector socket, and the modules are connected together through a detachable structure to form the body of the short connector.

Particularly, the upper sealing cover of the body is connected with the short connector base through a bolt and screw hole structure.

In particular, the short-circuit or bridging arrangement between the connector sockets is realized through a short-circuit gasket at the tail end.

In particular, the body is also provided with an external wiring opening.

Particularly, the short body is provided with an identification pattern layer which is arranged between the connector sockets in a short circuit or a bridging manner in advance.

The utility model has the advantages that: the utility model discloses novel structure, weight is suitable, can design the demand that the short connector subassembly of multiple difference satisfies the short cross-over connection of test wire to different equipment types. Furthermore, the operation steps can be reduced, the operation time is shortened, and the test error rate and the operation risk are reduced by matching the female seat.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and/or combinations particularly pointed out in the appended claims.

Drawings

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail with reference to the accompanying drawings, in which:

fig. 1 is a schematic external structural diagram (without a test terminal) of a first embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view illustrating a first embodiment of the present invention;

fig. 3 is a schematic view illustrating the structure of the first embodiment and the use of the female socket for connecting the access terminal strip;

FIG. 4 is a schematic external structural view of the second embodiment;

FIG. 5 is a schematic diagram of module assembly connection according to the second embodiment;

fig. 6 is an external structural view of the third embodiment.

Detailed Description

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the preferred embodiments are for purposes of illustration only and are not intended to limit the scope of the present invention.

Example one

As shown in fig. 1 and fig. 2, the embodiment provides a short connector for quick short connection or bridging of a secondary current loop, the short connector includes a body 1, connector sockets 2 arranged in parallel in sequence along a long axis direction of the body are arranged inside the body, each connector socket includes a connector jack 3 (arranged on a lower end face C in fig. 1), short connection or bridging is performed between the connector sockets in advance, and the connector jacks of adjacent connector sockets are arranged vertically in sequence along the long axis direction of the body. The short circuit or bridging arrangement between the connector sockets is realized through the short circuit gasket 4 at the tail end, and the connector jack is used for being connected into the test terminal 10 and is connected with an external part through the test terminal. The test terminals are conventional in the art.

In this embodiment, body 1 includes closing cap 5 and short circuit ware base 6, is connected through detachable structure between last closing cap and the short circuit ware base, connects the socket embedding to be fixed in the recess that closing cap and short circuit ware base are inside to correspond to and set up to fix through screw rod 7, detachable structure adopts the structure of bolt and the combination of screw 8 in this embodiment, of course can also have other modes to select. As is common general knowledge in the art, it will not be described herein.

As shown in fig. 3, in the actual use process of the product, a short connector female socket can be used as a connecting medium between the terminal strip, and can also be directly connected to the terminal strip, so as to realize short connection or bridging between the secondary circuit terminals.

As a further improvement, the body is provided with an identification layer 9 for displaying the specific connection relation of short circuit or bridging between the connector sockets in advance. The operator of being convenient for can select suitable certain short connector fast in the in-service use process, through the short connector subassembly that many sets of suitable different producers of configuration, utilizes different short connector subassemblies to cooperate the use, the demand of accomplishing different producers, different cross-over connections and short circuit condition that can be quick accurate.

Example two

In this embodiment, the body is of a modular structure, each module includes a connector socket, and the modules are connected together by a detachable structure to form the body of the short connector. In fig. 4, a possible connection mode between modules is shown, the front side and the rear side of each module are respectively provided with a projection a and a slot B, the connection of two modules can be realized by inserting the projection a into the slot B, and a building block type connection structure as shown in fig. 5 can be realized by connecting a plurality of modules together. The bottom of each module is provided with a connector jack for connecting in a test terminal 10, the test terminal is connected in a terminal row which needs short circuit or bridging outside, and the other row of connector jacks on the middle side finish short circuit or bridging between connector sockets through self wiring.

EXAMPLE III

As shown in fig. 6, the present embodiment is different from the first embodiment in that an external wiring opening 11 is further provided on the body. The external wiring opening 11 can be arranged on one side or two sides and is used for accessing a test wire 12, can be suitable for the field condition of a single set of device, can also be suitable for the field condition of more than 220kV devices, and has good redundancy.

In the description of the present invention, it is to be understood that the terms "longitudinal", "length", "circumferential", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically connected, electrically connected or can communicate with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the scope of the claims of the present invention.

Claims

1. Short connector is used in quick short circuit of secondary current return circuit or cross-over connection, its characterized in that: the short connector comprises a body, the body is internally provided with joint sockets which are sequentially arranged in parallel along the long axis direction of the body, each joint socket at least comprises one joint jack, and short connection or bridging is performed between the joint sockets in advance.

2. The short circuit device for quick short circuit or crossover of the secondary current loop according to claim 1, characterized in that: the joint jacks of adjacent joint sockets are sequentially and vertically arranged along the long axis direction of the body.

3. The short circuit for quick short circuit or bridging of the secondary current loop according to claim 1 or 2, characterized in that: the body includes closing cap and short circuit ware base, be connected through detachable structure between upper closing cap and the short circuit ware base, connect the socket embedding to be fixed in the recess that upper closing cap and short circuit ware base inside correspond the setting.

4. The short circuit for quick short circuit or bridging of the secondary current loop according to claim 1 or 2, characterized in that: the body adopts modular structure, and each module includes at least one and connects the socket, links together through detachable structure between the module and forms the body of short connector.

5. The short circuit device for quick short circuit or crossover of the secondary current loop according to claim 4, characterized in that: the upper sealing cover of the body is connected with the short connector base through a bolt screw hole structure.

6. The short circuit device for quick short circuit or crossover of the secondary current loop according to claim 1, characterized in that: short circuit or bridging setting between the short circuit gasket realization through the tail end between the joint socket.

7. The short circuit device for quick short circuit or crossover of the secondary current loop according to claim 1, characterized in that: the body is also provided with an external wiring opening.

8. The short circuit device for quick short circuit or crossover of the secondary current loop according to claim 1, characterized in that: the body is provided with an identification layer which is connected between the connector sockets in advance and is in short circuit or bridging arrangement.