CN213544606U - Quick short circuit or bridging tool for secondary current loop - Google Patents

Abstract

The utility model discloses a quick short circuit of secondary current return circuit or bridging instrument, including female seat, female seat includes female seat body, and female seat body is inside to be provided with along female seat body major axis direction parallel arrangement's joint socket in proper order, and each joint socket includes two joint jacks that switch on each other at least. The utility model discloses novel structure, weight is suitable, can conveniently satisfy the demand of the short cross-over connection of test wire in a flexible way. In the practical application process, the utility model discloses can also reduce the operation step through the female seat of whole plug, reduce the activity duration, reduce experimental error rate and operation risk.

Description

Quick short circuit or bridging tool for secondary current loop

Technical Field

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

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 new tool product is designed and manufactured, and the requirements of different manufacturers, different bridging and short-circuit conditions can be quickly and accurately met.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention provides a secondary current loop quick short circuit or bridging tool. The problems in the background art can be overcome.

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

this kind of quick short circuit of secondary current return circuit or bridging instrument, including female seat body, female seat body is inside to be provided with along female seat body major axis direction parallel arrangement's joint socket in proper order, and each joint socket includes two joint jacks that switch on each other at least.

Particularly, the connector jacks are divided into at least two vertical columns according to different access objects, wherein one column is used for accessing an external terminal row needing short circuit or bridging, and the other column completes short circuit or bridging between connector jacks through self wiring.

Particularly, the female seat is further provided with a handle, and the handle is connected with the female seat body in a detachable structure or is integrally manufactured with the female seat body.

Particularly, the female seat body comprises an upper half part and a lower half part, the upper half part and the lower half part are connected through a detachable structure, and the joint socket is embedded and fixed in grooves which are correspondingly arranged in the upper half part and the lower half part.

Particularly, the female seat body adopts a modular structure, each module comprises at least one connector socket, each connector socket at least comprises two connector jacks which are mutually communicated, and the modules are connected together through a detachable structure to form the female seat body.

Specifically, each connector socket is of a metal three-way structure and comprises three connector jacks communicated with each other.

Particularly, the upper half part and the lower half part of the female seat body are connected through a bolt and screw hole structure.

The utility model has the advantages that: the utility model discloses novel structure, weight is suitable, can conveniently satisfy the demand of the short cross-over connection of test wire in a flexible way. In the practical application process, the utility model discloses can also reduce the operation step through the female seat of whole plug, reduce the activity duration, reduce experimental error rate and operation risk.

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 structural diagram of a first embodiment of the present invention;

FIG. 2 is a diagram illustrating a state of use of the short access terminal row according to the first embodiment;

FIG. 3 is a schematic cross-sectional view of the first embodiment;

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

fig. 5 is a schematic view of the combined structure of the second 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, in this embodiment, the tool for quick short-circuit or bridging of the secondary current loop includes a female socket body 1, 8 connector sockets 2 are disposed inside the female socket body 1 and are sequentially and parallelly disposed along a long axis direction of the female socket body, and a conductive portion inside the socket is formed by processing red copper with excellent conductivity. Each connector socket comprises two mutually conductive connector jacks 3.

The connector jacks are divided into two vertical columns according to different access objects, wherein one column is used for accessing a test terminal 4, the test terminal is accessed into an external terminal row which needs to be short-circuited or bridged, and the other column completes short-circuiting or bridging between connector sockets through self-wiring. The self-wiring comprises the wiring operation by adopting a lead with a terminal, and can also adopt a short circuit device matched with the lead to perform the wiring operation. The female seat of the utility model can be inserted into the test hole of the current terminal strip through the test connector; as shown in fig. 2, this figure shows that in the actual use process, a female socket can be used as the coupling medium between the short circuit device and the terminal strip, and the "short circuit device" described in this embodiment is a circuit that is integrated in advance in a pluggable device and needs to be bridged or shorted, and is connected to the female socket, so that the terminal strip can be accessed, and the bridging or shorting can be realized quickly and accurately.

In this embodiment, the female housing body includes an upper half portion 5 and a lower half portion 6, the upper half portion and the lower half portion are connected by a detachable structure, and the connector socket is embedded and fixed in a groove correspondingly formed in the upper half portion and the lower half portion. In this embodiment, the upper half portion and the lower half portion of the female seat body are connected through a fastening nut 7 and a fastening screw 8.

As a further improvement, the female seat is further provided with a handle 9 which can be conveniently held and can be conveniently plugged and unplugged. The handle adopts a detachable structure to be connected with the female seat body or the handle and the female seat body are manufactured into a whole. In this embodiment, the handle is made in one piece with the upper half 5.

Example two

As shown in fig. 3 and 4, in the present embodiment, the female housing body is of a modular structure, each module includes at least two connector sockets, and the modules are detachably connected to form the female housing body. In fig. 2, 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. 3 can be realized by connecting a plurality of modules together. The bottom and the middle side of each module are respectively provided with a connector jack 3 which is mutually communicated, wherein one row of interface jacks at the bottom are used for accessing a test terminal 4, the test terminal is accessed into a terminal row which needs to be short-circuited or bridged externally, and the other row of connector jacks at the middle side are connected by self-wiring to complete short-circuiting or bridging between connector sockets.

In this embodiment, a handle 9 is provided on the top of each module, which when combined forms a large handle for easy handling. Of course, in practical application, the handle may be provided only on a part of the modules.

The embodiment can be matched and combined very conveniently by adopting a modular structure. And the application requirements under different conditions are met.

EXAMPLE III

As shown in fig. 5, the difference between the first embodiment and the second embodiment lies in that 8 tee metal joint sockets are arranged inside the female socket, the two sides of each tee joint are provided with the joint jacks 3 which are mutually communicated, the test wire can be inserted into the holes on the two sides, when tests such as a plurality of intervals are carried out, the whole socket can be directly pulled out from the current terminal, the socket is changed to other intervals or other sides for testing, the mode of replacing the test wire in the past in a single phase mode is integrally plugged, the operation time of testers is shortened, and the accuracy of test operation is improved.

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 those shown in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, 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 (8)

1. Quick short circuit of secondary current return circuit or bridging instrument, its characterized in that: the instrument includes female seat body, female seat body inside is provided with along female seat body major axis direction parallel arrangement's joint socket in proper order, and each joint socket includes two joint jacks that switch on each other at least.

2. The secondary current loop quick short or crossover tool of claim 1, wherein: the connector jacks are divided into at least two vertical columns according to different access objects, wherein one column is used for accessing an external terminal row needing short circuit or bridging, and the other column completes short circuit or bridging between the connector sockets through self wiring.

3. The secondary current loop quick short or crossover tool as defined in claim 1 or 2, wherein: the handle is arranged on the female seat body and is connected with the female seat body in a detachable structure or is integrally manufactured with the female seat body.

4. The secondary current loop quick short or crossover tool as defined in claim 1 or 2, wherein: the female seat body comprises an upper half part and a lower half part, the upper half part and the lower half part are connected through a detachable structure, and the joint socket is embedded and fixed in grooves which are correspondingly arranged in the upper half part and the lower half part.

5. The secondary current loop quick short or crossover tool as defined in claim 1 or 2, wherein: female seat body adopts modular structure, and each module includes at least one and connects the socket, and each connects the socket to include two joint jacks that switch on each other at least, links together through detachable structure between the module and forms female seat body.

6. The secondary current loop quick short or crossover tool of claim 1, wherein: each connector socket is of a metal three-way structure and comprises three connector jacks which are communicated with each other.

7. The secondary current loop quick short or crossover tool of claim 5, wherein: each connector socket is of a metal three-way structure and comprises three connector jacks which are communicated with each other.

8. The secondary current loop quick short or crossover tool of claim 4, wherein: the upper half part and the lower half part of the female seat body are connected through a bolt and screw hole structure.

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