CN221124641U

CN221124641U - Disconnect test connector and box-type substation

Info

Publication number: CN221124641U
Application number: CN202322456830.2U
Authority: CN
Inventors: 符勇; 庄友良; 许宾卿
Original assignee: Huawei Digital Power Technologies Co Ltd
Current assignee: Huawei Digital Power Technologies Co Ltd
Priority date: 2023-09-07
Filing date: 2023-09-07
Publication date: 2024-06-11
Anticipated expiration: 2033-09-07

Abstract

The application provides a breaking test connector and a box-type transformer substation. The movable conductor is connected with the second conductor, and the first elastic member is fixedly connected with one of the movable conductor and the first conductor. When the breaking test connector is in a breaking state, the first elastic piece is disconnected with the other one of the movable conductor and the first conductor; when the breaking test connector is converted from the breaking state to the conducting state, the other one of the movable conductor and the first conductor stretches into the first elastic piece along the first direction so as to enable the first elastic piece to elastically deform to clamp the other one of the movable conductor and the first conductor. When the breaking test connector is in a conducting state, the movable conductor is connected with the first conductor through the first elastic piece, so that the connection reliability between the movable conductor and the first conductor is improved.

Description

Breaking test connector and box-type transformer substation

Technical Field

The application relates to the technical field of electricity, in particular to a breaking test connector and a box-type transformer substation.

Background

Before the electric system or the electric equipment is put into operation and during regular maintenance, the secondary circuit is required to be reliably disconnected to isolate the voltage or current measuring signal circuit so as to perform functional test and verification on secondary equipment such as instruments, relay protection devices and the like and transformers. The secondary equipment and the transformer are required to restore the communication of the secondary loop after the test and verification are completed, and the reliable connection of the secondary loop is ensured. The secondary circuit is typically disconnected from the isolated secondary circuit voltage or current measurement signal using a disconnection test terminal. However, the existing breaking test terminal has poor connection reliability and use convenience.

Disclosure of utility model

The application provides a breaking test connector and a box-type transformer substation.

In a first aspect, the application provides a box-type substation comprising a transformer, a secondary device and a breaking test connector, wherein the breaking test connector comprises a first conductor, a first elastic piece, a movable conductor and a second conductor, the first conductor is used for connecting the transformer, and the second conductor is used for connecting the secondary device. The first conductor, the movable conductor and the second conductor are arranged along a first direction, the movable conductor can move along the first direction, the movable conductor is connected with the second conductor, and the first elastic piece is used for being fixedly connected with one of the movable conductor and the first conductor. The breaking test connector comprises a conducting state and a breaking state, and when the breaking test connector is in the breaking state, the first elastic piece is disconnected with the other one of the movable conductor and the first conductor. When the breaking test connector is converted from the breaking state to the conducting state, the other one of the movable conductor and the first conductor stretches into the first elastic piece along the first direction so as to enable the first elastic piece to elastically deform to clamp the other one of the movable conductor and the first conductor. The movable conductor is movable in a first direction to provide the breaking test connector with a conductive state and a breaking state. When the breaking test connector is in a conducting state, the movable conductor is pressed by the first elastic piece due to the elastic force action of the first elastic piece on the movable conductor, so that a certain contact area and a certain contact pressure are ensured between the movable conductor and the first elastic piece all the time, the connection reliability and convenience between the movable conductor and the first conductor are improved due to the arrangement of the first elastic piece, and the operation reliability and safety performance of an electrical system are improved.

In one embodiment, the breaking test connector further comprises a second elastic member, the second elastic member is fixedly connected with one of the second conductor and the movable conductor, and one end of the other of the second conductor and the movable conductor is located in the second elastic member so as to enable the second elastic member to elastically deform to clamp the other of the second conductor and the movable conductor. The provision of the second elastic member increases the reliability and convenience of the connection between the movable conductor and the second conductor.

In an embodiment, the first elastic member includes two first elastic pieces connected, the two first elastic pieces are arranged along a second direction, the two first elastic pieces are used for clamping the other one of the movable conductor and the first conductor in a conducting state, when the breaking test connector is in a breaking state, the distance between the two first elastic pieces is a first distance along the second direction, the size of the other one of the movable conductor and the first conductor along the second direction is larger than the first distance, and the second direction is perpendicular to the first direction. When the breaking test connector is in a conducting state, the movable conductor is located between the two first elastic pieces, and the two first elastic pieces are provided with elastic forces which are close to each other along the second direction, so that one end of the movable conductor is clamped between the two first elastic pieces in an interference mode, and connection reliability of the movable conductor and the first elastic piece is improved.

In an embodiment, the second elastic member includes two connected second elastic pieces, the two second elastic pieces are arranged along the second direction, and when the two second elastic pieces are used for clamping the other one of the movable conductor and the first conductor, the two second elastic pieces generate elastic forces close to each other. The other one of the movable conductor and the first conductor is clamped between the two second elastic sheets in an interference manner, so that the reliability of connection between the movable conductor and the first conductor is improved.

In an embodiment, along the first direction, one end of the two first elastic pieces is fixed at one end of the first conductor, which is close to the movable conductor, and the other end of each first elastic piece comprises a first convex part, the first convex parts are positioned at the inner sides of the first elastic pieces, when the breaking test connector is in a conducting state, the movable conductor is clamped by the two first convex parts, and when the breaking test connector is in a breaking state, the movable conductor is separated from the two first convex parts. Along the first direction, one end of each second elastic piece is fixed at one end of the second conductor, which is close to the movable conductor, and the other end of each second elastic piece comprises a second convex part which is positioned at the inner side of the second elastic piece and clamps the movable conductor. When the breaking test connector is in a conducting state, two ends of the movable conductor are respectively clamped between the two first convex parts and the two second convex parts in an interference mode, and connection reliability of the movable conductor, the first elastic piece and the second elastic piece is improved.

In an embodiment, along the first direction, one end of the first conductor facing the movable conductor is provided with a first mounting groove, and the first mounting groove is used for accommodating two first elastic pieces, and one ends of the two first elastic pieces are fixed at the bottom of the first mounting groove. Along the first direction, one end of the second conductor facing the movable conductor is provided with a second mounting groove, the second mounting groove is used for accommodating two second elastic pieces, and one ends of the two second elastic pieces are fixed at the bottom of the second mounting groove. The first elastic piece and the second elastic piece are respectively and fixedly accommodated in the first installation groove and the second installation groove, so that the reliability of connection between the first elastic piece and the first conductor and between the second elastic piece and the second conductor is improved. And the size of the breaking test connector is reduced.

In an embodiment, each first spring further includes a first end portion near the movable conductor along the first direction, a maximum distance between the two first end portions is greater than a distance between the two first protruding portions along the second direction, and a maximum distance between the two first end portions is greater than a dimension of the movable conductor near the end of the first conductor. Each second elastic piece further comprises a second end part close to one end of the movable conductor along the first direction, the maximum distance between the two second end parts is larger than the distance between the two second convex parts along the second direction, and the maximum distance between the two second end parts is larger than the size of one end of the movable conductor close to the second conductor. The maximum distance between the two first end parts is larger, and the movable conductor can be guided to enter between the two first convex parts when the breaking test connector is converted from the breaking state to the conducting state, so that the two first convex parts can clamp the movable conductor more accurately and reliably. The maximum distance between the two second ends is large, facilitating the connection of the movable conductor to the first elastic member.

In an embodiment, the length of the movable conductor is greater than the distance between the first protrusion and the second protrusion in the first direction. When the disconnection test connector is in a conducting state, two ends of the movable conductor can be clamped between the two first convex parts and between the two second convex parts smoothly, and connection reliability between the movable conductor and the first elastic part and between the movable conductor and the second elastic part is improved.

In an embodiment, along the first direction, the length of the movable conductor is smaller than the maximum distance between the first protrusion and the second spring. When the breaking test connector is in a breaking state, the movable conductor and the second connecting piece are arranged at intervals, the movable conductor does not need to be bent, and the service life of the movable conductor is prolonged.

In an embodiment, in the first direction, in the process of switching the breaking test connector between the conducting state and the breaking state, the movement distance of the movable conductor is smaller than or equal to the distance between the second protruding portion and one end of the first elastic piece. When the breaking test connector is switched between the conducting state and the breaking state, the movable conductor is always clamped by the two second convex parts, and connection reliability between the movable conductor and the second elastic piece is improved.

In an embodiment, along a first direction, one ends of the two first elastic pieces are fixed at one end of the movable conductor, which is close to the first conductor, and the other end of each first elastic piece comprises a first convex part, the first convex parts are positioned at the inner sides of the first elastic pieces, when the breaking test connector is in a conducting state, the two first convex parts clamp the first conductor, and when the breaking test connector is in a breaking state, the first conductor is separated from the two first convex parts; along the first direction, one end of each second elastic piece is fixed at one end of the movable conductor, which is close to the second conductor, and the other end of each second elastic piece comprises a second convex part which is positioned at the inner side of the second elastic piece and clamps the second conductor. The arrangement of the two first elastic sheets and the two second elastic sheets improves the connection reliability of the movable conductor and the first conductor and the second conductor.

In one embodiment, the breaking test connector further comprises an operating mechanism fixedly connected with the movable conductor for driving the movable conductor to move along the first direction. The breaking test connector further comprises a shell, wherein the first conductor, the first elastic piece, the movable conductor and the second conductor are all located in the shell, and one end, away from the movable conductor, of the operating mechanism is located outside the shell. The switch-off test connector can be safely and conveniently switched between a switch-off state and a switch-on state by pushing the operating mechanism out of the shell.

In one embodiment, the movable conductor includes a first end and a second end disposed opposite in a first direction, the distance between the first end and the first conductor being less than the distance between the second end and the first conductor in the first direction. The distance between the operating mechanism and the first end is smaller than the distance between the operating mechanism and the second end along the first direction. The distance between the operating mechanism and the second end is larger, so that the movable conductor and the second elastic piece can be kept in good connection. The distance between the operating mechanism and the first end is smaller, on the one hand, the first elastic piece can clamp the movable conductor or disconnect the first elastic piece from the movable conductor by moving the operating mechanism by a shorter distance, and the size of the breaking test connector 10 is reduced.

In one embodiment, the housing further comprises a slot, the slot housing the portion operating mechanism, the slot comprising a first limiting aperture wall and a second limiting aperture wall arranged opposite one another along a first direction, the first limiting aperture wall being less than the second limiting aperture wall; when the operating mechanism is abutted to the first limiting hole wall along the first direction, the breaking test connector is in a conducting state, and when the operating mechanism is abutted to the second limiting hole wall along the first direction, the breaking test connector is in a breaking state. The first limiting hole wall and the second limiting hole wall can play a role in positioning and limiting, and normal and stable work of the breaking test connector is guaranteed.

In an embodiment, the housing further comprises a first indicator bar and a second indicator bar arranged along the first direction, and the operating mechanism further comprises a boss, wherein the boss is positioned outside the housing; when the breaking test connector is in a conducting state, the first indicator strip is shielded by the boss; when the breaking test connector is in a breaking state, the second indication strip is shielded by the boss. The first indicator strip and the second indicator strip can provide striking visual feedback, and the on-off state of the breaking test connector is intuitively displayed through the first indicator strip and the second indicator strip when the operating mechanism moves.

In an embodiment, the housing further comprises a first wiring port for connecting the first conductor and the transformer, a second wiring port for connecting the second conductor and the secondary device, a first test port for connecting the detection instrument when the breaking test connector is in a breaking state, and a second test port for connecting the detection instrument when the breaking test connector is in a breaking state; the first wiring port and the second wiring port are respectively positioned at two ends of the shell along the first direction, the first test port and the second test port are respectively positioned at two ends of the shell along the first direction, the first wiring port and the first test port are arranged at intervals along the third direction, the second wiring port and the second test port are arranged at intervals along the third direction, and the third direction is perpendicular to the first direction and the second direction.

In an embodiment, the housing further includes a top plate perpendicular to the third direction, the top plate including first and second through holes arranged along the first direction, the first and second through holes penetrating the top plate along the third direction.

In the application, the wiring ports, the test ports and the through holes are reasonably arranged, which is not only convenient for the breaking test connector to access the secondary circuit, but also beneficial for the breaking test connector to perform breaking test.

In one embodiment, the breaking test connector comprises a plurality of shells, wherein the shells are sequentially arranged along a second direction and are sequentially connected, each shell is provided with a first conductor, a second conductor, a movable conductor, a first elastic piece and an operating mechanism, one end, away from the movable conductor, of the operating mechanism along a third direction is positioned outside the shell, one end, away from the movable conductor, of the operating mechanism along the third direction comprises a groove, and the grooves of the operating mechanisms are communicated along the second direction; the second direction, the third direction and the first direction are mutually perpendicular; the breaking test connector further comprises a coupler, and when the coupler is accommodated in the grooves of the two adjacent operating mechanisms, the two operating mechanisms are coupled. Each shell and the internal components thereof form a connector sub-piece, and the arrangement of the coupler can realize the simultaneous control of the disconnection and the connection of a plurality of connector sub-pieces.

In a second aspect, the present application provides a breaking test connector, the breaking test connector comprising a first conductor, a first elastic member, a movable conductor, a second elastic member and a second conductor, the first conductor, the movable conductor and the second conductor being arranged in a first direction, the movable conductor being movable in the first direction, the movable conductor being connected to the second conductor, the second elastic member being for fixed connection to one of the second conductor and the movable conductor, and one end of the other of the second conductor and the movable conductor being located in the second elastic member to elastically deform the second elastic member to clamp the other of the second conductor and the movable conductor, the first elastic member being for fixed connection to one of the movable conductor and the first conductor; the breaking test connector comprises a conducting state and a breaking state, and when the breaking test connector is in the breaking state, the first elastic piece is disconnected with the other one of the movable conductor and the first conductor; when the breaking test connector is converted from the breaking state to the conducting state, the other one of the movable conductor and the first conductor stretches into the first elastic piece along the first direction so as to enable the first elastic piece to elastically deform to clamp the other one of the movable conductor and the first conductor. In the application, the arrangement of the first elastic element improves the reliability of the connection between the movable conductor and the first conductor.

In an embodiment, the first elastic member includes two connected first elastic pieces, the two first elastic pieces are arranged along a second direction, the two first elastic pieces are used for clamping the other one of the movable conductor and the first conductor in a conducting state, when the breaking test connector is in a breaking state, the distance between the two first elastic pieces is a first distance along the second direction, the dimension of the other one of the movable conductor and the first conductor along the second direction is larger than the first distance, and the second direction is perpendicular to the first direction; the second elastic piece comprises two connected second elastic pieces, the two second elastic pieces are distributed along the second direction, and when the two second elastic pieces are used for clamping the other one of the movable conductor and the first conductor, the two second elastic pieces generate elastic force which is close to each other.

In an embodiment, along a first direction, one end of the first conductor, facing the movable conductor, is provided with a first mounting groove, the first mounting groove is used for accommodating two first elastic pieces, one end of each first elastic piece is fixed at the bottom of the first mounting groove, the other end of each first elastic piece comprises a first convex part, the first convex parts are positioned at the inner sides of the first elastic pieces, when the breaking test connector is in a conducting state, the movable conductor is clamped by the two first convex parts, and when the breaking test connector is in a breaking state, the movable conductor is separated from the two first convex parts; along the first direction, one end of the second conductor facing the movable conductor is provided with a second mounting groove, the second mounting groove is used for accommodating two second elastic pieces, one ends of the two second elastic pieces are fixed at the bottom of the second mounting groove, the other end of each second elastic piece comprises a second convex part, the second convex part is positioned at the inner side of the second elastic piece, and the movable conductor is clamped by the two second convex parts.

In an embodiment, each first spring further includes a first end portion near the movable conductor along the first direction, a maximum distance between the two first end portions is greater than a distance between the two first protruding portions along the second direction, and a maximum distance between the two first end portions is greater than a dimension of the movable conductor near the end of the first conductor. Each second elastic piece further comprises a second end part close to one end of the movable conductor along the first direction, the maximum distance between the two second end parts is larger than the distance between the two second convex parts along the second direction, and the maximum distance between the two second end parts is larger than the size of one end of the movable conductor close to the second conductor.

In an embodiment, along the first direction, the length of the movable conductor is greater than the distance between the first protrusion and the second protrusion and less than the maximum distance between the first protrusion and the second spring. In the first direction, in the switching process of the breaking test connector between the conducting state and the breaking state, the movement distance of the movable conductor is smaller than or equal to the distance between the second convex part and one end of the first elastic piece.

In an embodiment, along a first direction, one end of the movable conductor, facing the first conductor, is provided with a first mounting groove, the first mounting groove is used for accommodating two first elastic pieces, one end of each first elastic piece is fixed at the bottom of the first mounting groove, the other end of each first elastic piece comprises a first convex part, the first convex part is positioned at the inner side of the first elastic piece, when the breaking test connector is in a conducting state, the two first convex parts clamp the first conductor, and when the breaking test connector is in a breaking state, the first conductor is separated from the two first convex parts; along the first direction, the movable conductor is equipped with the second mounting groove towards the one end of second conductor, and the second mounting groove is used for acceping two second shell fragments, and the tank bottom of second mounting groove is fixed in to one end of two second shell fragments, and one end of two second shell fragments is fixed in the movable conductor and is close to the one end of second conductor, and the other end of every second shell fragment includes the second convex part, and the second convex part is located the inboard of second shell fragment, two second convex parts centre gripping second conductors.

In one embodiment, the breaking test connector further comprises an operating mechanism fixedly connected with the movable conductor for driving the movable conductor to move along the first direction; the breaking test connector further comprises a shell, wherein the first conductor, the first elastic piece, the movable conductor and the second conductor are all located in the shell, and one end, away from the movable conductor, of the operating mechanism is located outside the shell.

In one embodiment, the movable conductor includes a first end and a second end disposed opposite each other along a first direction, a distance between the first end and the first conductor being smaller than a distance between the second end and the first conductor along the first direction, and a distance between the operating mechanism and the first end being smaller than a distance between the operating mechanism and the second end along the first direction.

In an embodiment, the casing further comprises a first indicator strip and a second indicator strip arranged along a first direction, the operating mechanism further comprises a boss, the boss is located outside the casing, and when the breaking test connector is in a conducting state, the first indicator strip is shielded by the boss; when the breaking test connector is in a breaking state, the second indication strip is shielded by the boss.

In one embodiment, the breaking test connector comprises a plurality of shells, wherein the shells are sequentially arranged along a second direction and are sequentially connected, each shell is provided with a first conductor, a second conductor, a movable conductor, a first elastic piece and an operating mechanism, one end, away from the movable conductor, of the operating mechanism along a third direction is positioned outside the shell, one end, away from the movable conductor, of the operating mechanism along the third direction comprises a groove, and the grooves of the operating mechanisms are communicated along the second direction; the second direction, the third direction and the first direction are perpendicular to each other. The breaking test connector further comprises a coupler, and when the coupler is accommodated in the grooves of the two adjacent operating mechanisms, the two operating mechanisms are coupled.

Drawings

In order to more clearly describe the technical solution in the embodiments of the present application, the drawings required to be used in the embodiments of the present application will be described below.

FIG. 1a is a schematic diagram of a photovoltaic electrical system according to an embodiment of the present application;

FIG. 1b is a schematic diagram of a photovoltaic electrical system according to an embodiment of the present application;

fig. 2 is a perspective view of a breaking test connector according to an embodiment of the present application;

FIG. 3 is an exploded view of a breaking test connector according to one embodiment of the present application;

fig. 4 is a schematic diagram of a breaking test connector according to an embodiment of the present application in a conductive state;

FIG. 5 is a schematic view of a breaking test connector according to an embodiment of the present application in a broken state;

fig. 6 is a schematic diagram of a breaking test connector according to an embodiment of the present application in a conductive state;

FIG. 7 is a schematic view of a breaking test connector according to an embodiment of the present application in a broken state;

fig. 8 is a perspective view of a breaking test connector according to an embodiment of the present application;

Fig. 9 is a top view of a breaking test connector according to an embodiment of the present application in a coupled state;

Fig. 10 is a top view of a breaking test connector according to an embodiment of the present application in a decoupled state;

FIG. 11 is a schematic diagram of a breaking test connector according to an embodiment of the present application in a conductive state;

fig. 12 is a schematic view of a breaking test connector according to an embodiment of the present application in a breaking state.

Detailed Description

The following description of the technical solutions according to the embodiments of the present application will be given with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, but not all embodiments.

Please refer to fig. 1a. The breaking test connector provided by the application can be applied to a photovoltaic electrical system. The photovoltaic electrical system comprises a photovoltaic panel, an inverter and a box-type substation 3. The box-type substation 3 comprises a low-voltage cabinet 31, a transformer 32 and a medium-voltage cabinet 33 which are sequentially connected. Photovoltaic panels are capable of converting solar energy into electrical energy. The inverter converts the generated electric energy into power and then is connected into a low-voltage cabinet 31, then the voltage is increased by a transformer 32 and then is connected into a medium-voltage cabinet 33, and then the power is connected into a power grid through a high-voltage switch or is connected into a booster station through the high-voltage switch and then is connected into the power grid after being boosted. The power grid is used for supplying power to the electric equipment.

Please refer to fig. 1b. Generally, a photovoltaic electrical system generally includes a primary circuit 1 and a secondary circuit 2. The primary loop 1 is composed of primary equipment and mainly plays roles of power generation, power transmission, power transformation, power distribution and the like. Primary devices refer to electrical devices, such as photovoltaic panels, transformers, circuit breakers, switchgear, bus bars, power cables, etc., that are directly used in the production process of producing electrical energy, delivering electrical energy, converting voltage, and distributing electrical energy. When the primary loop 1 operates, secondary equipment such as an instrument device, a metering device, a measurement and control device, a protection device and the like is generally needed to monitor, control, regulate and protect the primary loop 1, wherein the loop formed by the secondary equipment is a secondary loop 2.

In general, the primary circuit 1 has a high voltage and a high current. In order to facilitate monitoring, control, regulation and protection of the primary circuit 1, and to improve operational safety and to protect the secondary equipment 12, the use of a transformer 11 is required. The transformer 11 includes at least one of a current transformer and a voltage transformer. The secondary circuit 2 is connected to a transformer 11 in the primary circuit 1. The transformer 11 is used for converting a large current in the primary loop 1 into a small current and then supplying power to the secondary loop 2, or the transformer 11 is used for converting a high voltage in the primary loop 1 into a low voltage and then supplying power to the secondary loop 2.

Before the transformer 11 and the secondary equipment 12 are put into operation and during regular maintenance, the voltage or current signals of the secondary circuit 2 need to be disconnected and isolated, and the secondary circuit 2 is restored to be communicated after equipment verification, parameter setting and functional test verification are completed on the secondary equipment 12 such as an instrument or a relay protection device and the transformer 11. In general, the secondary circuit 2 includes a breaking test connector 10, the breaking test connector 10 communicating with the secondary circuit 2. The secondary circuit 2 is disconnected and connected by disconnecting and connecting the test connector 10.

The breaking test connector 10 provided by the application can be applied to the secondary circuit 2 in the low-voltage cabinet 31 or the medium-voltage cabinet 33. The low-voltage cabinet 31 or the medium-voltage cabinet 33 further includes a transformer 11 and a secondary device 12. The breaking test connector 10 includes a first conductor 100, a movable conductor 300, and a second conductor 200. Wherein one of the first conductor 100 and the second conductor 200 is used for connecting the transformer 11 and the other of the first conductor 100 and the second conductor 200 is used for connecting the secondary device 12. When the movable conductor 300 communicates with the first conductor 100 and the second conductor 200, the transformer 11 communicates with the secondary device 12 when the breaking test connector 10 is in a conductive state. When the movable conductor 300 is disconnected from one of the first conductor 100 and the second conductor 200, the breaking test connector 10 is in a breaking state, the transformer 11 and the secondary device 12 are disconnected, and at this time, the connection detecting means between the transformer 11 and the breaking test connector 10 can detect whether the transformer 11 is operating normally, so as to prevent the transformer 11 from malfunctioning and damaging the secondary device 12. The connection detection device between the breaking test connector 10 and the secondary equipment 12 can detect whether the secondary equipment 12 works normally, so that the primary loop 1 can be monitored, controlled, regulated and protected.

In an embodiment, the photovoltaic electrical system further comprises a power plant controller 4, the power plant controller 4 being in communication with the grid, the box substation 3 and the inverter. The photovoltaic electrical system may be power controlled by a plant controller. The breaking test connector 10 may also be applied in the power station controller 4.

The breaking test connector 10 can be applied to any scene requiring a transformer or measurement, measurement and control, protection equipment breaking test from the whole photovoltaic electrical system of electric energy generation, voltage conversion, electric energy transportation and electric energy distribution. In addition, the application can also be applied to other types of electrical systems, such as wind power generation electrical systems, hydroelectric power generation electrical systems and the like.

The breaking test connector 10 in the box-type substation 3 in the present application is described in detail below.

Referring to fig. 2 and 3, the present application provides a box-type substation 3, the box-type substation 3 includes a transformer 11, a secondary device 12, and a breaking test connector 10, the breaking test connector 10 includes a first conductor 100, a first elastic member 410, a movable conductor 300, and a second conductor 200, the first conductor 100 is used for connecting the transformer 11, and the second conductor 200 is used for connecting the secondary device 12. The first conductor 100, the movable conductor 300 and the second conductor 200 are arranged along a first direction X, and the movable conductor 300 is movable along the first direction X. The movable conductor 300 is connected to the second conductor 200, and the first elastic member 410 is used for fixedly connecting to the first conductor 100. The breaking test connector 10 includes a conductive state and a breaking state, and when the breaking test connector 10 is in the breaking state (as shown in fig. 5), the first elastic member 410 is disconnected from the movable conductor 300. When the breaking test connector 10 is converted from the breaking state to the conducting state, the movable conductor 300 extends into the first elastic member 410 along the first direction X to elastically deform the first elastic member 410 to clamp the movable conductor 300 (as shown in fig. 4).

Wherein, in the breaking test connector 10, the first conductor 100, the movable conductor 300 and the second conductor 200 are arranged along the first direction X. This arrangement is advantageous in reducing the size of the breaking test connector 10. In addition, the movable conductor 300 moves along the first direction X to switch the breaking test connector 10 between the on state and the off state, so that the connection and disconnection of the secondary circuit 2 are more convenient.

The movable conductor 300 is movable relative to the first conductor 100 and the second conductor 200 during the switching of the breaking test connector 10 between the conductive state and the breaking state, and the movable conductor 300 and the second conductor 200 remain connected during the movement of the movable conductor 300.

When the breaking test connector 10 is in a breaking state (as shown in fig. 5), the first elastic member 410 and the movable conductor 300. Disconnection means not communicating. Since the first elastic member 410 is disconnected from the movable conductor 300, the movable conductor 300 is in a disconnected state with the first conductor 100, and thus the second conductor 200 is in a disconnected state with the first conductor 100.

When the breaking test connector 10 is in the conductive state (as shown in fig. 4), the first elastic member 410 connects the movable conductor 300 and the first conductor 100. The movable conductor 300 and the first conductor 100 are communicated by the first elastic member 410, and the second conductor 200, the movable conductor 300, the first elastic member 410 and the first conductor 100 are sequentially communicated.

In the embodiment of the present application, on the one hand, the breaking test connector 10 has a breaking state and a conducting state by the relative movement of the movable conductor 300, the breaking test connector 10 is applied to an electrical system, and before the electrical system is put into operation or during regular maintenance, the breaking test connector 10 can break and isolate the voltage or current measurement signal of the secondary circuit 2, so as to ensure the operation safety and protect the secondary equipment 12, so that the secondary circuit 2 can better monitor, control, regulate and protect the primary circuit 1. Before the electrical system resumes normal operation, the breaking test connector 10 resumes the secondary circuit 2 communication by moving the movable conductor 300 so that the breaking test connector 10 is in the conductive state. The provision of the breaking test connector 10 makes the connection and disconnection of the secondary circuit 2 more convenient.

On the other hand, when the breaking test connector 10 is in the conductive state, the provision of the first elastic member 410 increases the connection reliability and convenience between the movable conductor 300 and the first conductor 100, improving the reliability and safety performance of the operation of the electrical system. If the connection reliability between the movable conductor 300 and the first conductor 100 is poor, for example, when the connection between the movable conductor 300 and the first conductor 100 is loose after the electrical system is operated for a long time, the secondary circuit 2 is easily broken or the impedance is excessively large, particularly, when the transformer 11 is a current transformer, a high overvoltage is generated when the secondary circuit 2 where the current transformer is located is opened, which easily causes the breaking test connector 10 and the secondary device 12 to burn out, even causes casualties.

Specifically, the first elastic member 410 is fixed to the first conductor 100, and the first elastic member 410 is fixedly connected to the first conductor 100, so that the first elastic member 410 is in reliable communication with the first conductor 100. When the breaking test connector 10 is in the conductive state (as shown in fig. 4), the first elastic member 410 clamps the movable conductor 300, and the first elastic member 410 and the movable conductor 300 can be connected by clamping contact. Because the first elastic member 410 acts on the elastic force of the movable conductor 300, the movable conductor 300 is pressed by the first elastic member 410, so that a certain contact area and a certain contact pressure are ensured between the movable conductor 300 and the first elastic member 410 all the time, so that the movable conductor 300 and the first elastic member 410 are reliably connected, the movable conductor 300 and the first conductor 100 are reliably connected, and the connection reliability of the breaking test connector 10 in a conducting state is improved.

Meanwhile, when the breaking test connector 10 is converted from the conducting state to the breaking state, the breaking test connector 10 can be in the breaking state only by enabling the movable conductor 300 to move away from the first elastic piece 410 and the first conductor 100, and when the first elastic piece 410 does not clamp the movable conductor 300 any more, the breaking test connector 10 can be switched between the two states more conveniently, and the workload of switching the state of the breaking test connector 10 is reduced.

Referring to fig. 2 to 5, in one possible implementation, the breaking test connector 10 further includes a second elastic member 420, where the second elastic member 420 is fixedly connected to the second conductor 200, and one end of the movable conductor 300 is located in the second elastic member 420 so that the second elastic member 420 is elastically deformed to clamp the movable conductor 300. Wherein the second conductor 200 and the movable conductor 300 are communicated through the second elastic member 420 when the breaking test connector 10 is in the conductive state and the breaking state. When the breaking test connector 10 is in the conductive state, the second conductor 200, the second elastic member 420, the movable conductor 300, the first elastic member 410, and the first conductor 100 are sequentially connected. By the provision of the second elastic member 420, the connection reliability and convenience between the movable conductor 300 and the second conductor 200 are increased, and the reliability and safety performance of the operation of the electrical system are improved.

Specifically, the second elastic member 420 is fixed to the second conductor 200 and clamps the movable conductor 300. The second elastic member 420 is in reliable communication with the second conductor 200. The second elastic member 420 always holds the movable conductor 300 while the movable conductor 300 moves. Due to the elastic force of the second elastic member 420 on the movable conductor 300, the movable conductor 300 is pressed by the second elastic member 420, so that the movable conductor 300 and the second elastic member 420 maintain a reliable connection, so that the movable conductor 300 and the second conductor 200 maintain a reliable connection.

In addition, the second conductor 200 and the movable conductor 300 are communicated through the second elastic member 420, and when the breaking test connector 10 is assembled, the movable conductor 300 and the second elastic member 420 can be communicated only by inserting the movable conductor 300 into the second elastic member 420 so that the second elastic member 420 clamps the movable conductor 300. Compared with the screw connection mode, the connection between the second conductor 200 and the movable conductor 300 through the second elastic member 420 improves the convenience of disassembling and assembling the breaking test connector 10.

In one possible implementation manner, the first elastic member 410 includes two connected first elastic pieces 401, where the two first elastic pieces 401 are arranged along the second direction Y, the two first elastic pieces 401 are used to clamp the movable conductor in the conducting state, and when the breaking test connector 10 is in the breaking state, the distance between the two first elastic pieces 401 is a first distance along the second direction Y, and the size of the movable conductor 300 along the second direction Y is greater than the first distance, and the second direction Y is perpendicular to the first direction X.

Since the distance between the two first elastic pieces 401 in the second direction Y is smaller than the dimension of the movable conductor 300 in the second direction Y when the breaking test connector 10 is in the breaking state, the two first elastic pieces 401 are spread by the movable conductor 300 when the breaking test connector 10 is in the conducting state. The two first elastic pieces 401 are elastically deformed, and the two first elastic pieces 401 generate elastic forces close to each other to clamp the movable conductor 300.

The first elastic member 410 further includes a first connection piece 402 (shown in fig. 4 and 5). The two first elastic pieces 401 are connected by a first connecting piece 402. The first connecting piece 402 is fixed to the first conductor 100. The distance between the two first elastic pieces 401 along the second direction Y gradually decreases from the first conductor 100 to the movable conductor 300 along the first direction X, and a first clamping portion is formed at one end of the two first elastic pieces 401 along the first direction X near the movable conductor 300, and the first clamping portion clamps the movable conductor 300. The first direction X is perpendicular to the second direction Y.

When the breaking test connector 10 is in the on state, the movable conductor 300 is located between the two first elastic pieces 401, and the two first elastic pieces 401 have elastic forces along the second direction Y and close to each other, so that one end of the movable conductor 300 is clamped between the two first elastic pieces 401 in an interference manner, and connection reliability of the movable conductor 300 and the first elastic piece 410 is improved.

In an embodiment, the first elastic member 410 may also be cylindrical, where the first elastic member 410 includes an elastic hole, and a wall of the elastic hole has an elastic force along a radial direction of the elastic hole, and the wall of the elastic hole is a first clamping portion. The end of the movable conductor 300, which is close to the first conductor 100 along the first direction X, may also be cylindrical, and when the breaking test connector 10 is in the conductive state, the end of the movable conductor 300, which is close to the first conductor 100 along the first direction X, is inserted into the elastic hole and is in interference fit with the inner wall of the elastic hole, so that the movable conductor 300 is clamped in the elastic hole of the first elastic member 410.

In one possible implementation manner, along the first direction X, one end of the two first elastic pieces 401 is fixed to one end of the first conductor 100 near the movable conductor 300, and the other end of each first elastic piece 401 includes a first protrusion 411, where the first protrusion 411 is located inside the first elastic piece 401, and when the breaking test connector 10 is in the conducting state, the two first protrusions 411 clamp the movable conductor 300, and when the breaking test connector 10 is in the breaking state, the movable conductor 300 is separated from the two first protrusions 411.

One end of the two first elastic pieces 401 may be fixed to the first conductor 100 along the first direction X by welding, screws, or other fixing methods. The inner side of the first elastic piece 401 refers to the side where the two first elastic pieces 401 are close to each other. Along the second direction Y, the first protruding portion 411 of one of the first elastic pieces 401 protrudes toward the other first elastic piece 401, and the first protruding portion 411 of the other first elastic piece 401 also protrudes toward the first protruding portion 411 of one of the first elastic pieces 401.

In the present application, by arranging the two first protruding portions 411, when the breaking test connector 10 is in the conductive state, the two first protruding portions 411 can generate a larger clamping force to clamp the movable conductor 300, so as to improve the connection reliability of the movable conductor 300 and the first elastic member 410.

In one possible implementation, the second elastic member 420 includes two connected second elastic pieces, where the two second elastic pieces are arranged along the second direction Y, and when the two second elastic pieces Y are used to clamp the movable conductor, the two second elastic pieces generate elastic forces that are close to each other. The structure of the second elastic member 420 can refer to the structure of the first elastic member 410, and will not be described herein. One end of the movable conductor 300 is clamped between the two second elastic pieces in an interference manner, so that the connection reliability of the movable conductor 300 and the second elastic piece 420 is improved, the connection reliability between the movable conductor 300 and the second conductor 200 is improved, and the normal and stable operation of an electrical system is ensured.

In one possible implementation manner, along the first direction X, one end of two second elastic pieces is fixed to one end of the second conductor 200 near the movable conductor 300, and the other end of each second elastic piece includes a second protruding portion 421, where the second protruding portion 421 is located inside the second elastic piece, and the two second protruding portions 421 clamp the movable conductor 300. One end of the second elastic member 420 along the first direction X may be fixed to the second conductor 200 by welding, screws, or the like. By the arrangement of the two second protrusions 421, the two second protrusions 421 can generate a larger clamping force to clamp the movable conductor 300, so that the connection reliability of the movable conductor 300 and the second elastic member 420 is improved.

Referring to fig. 3 and 5, in one possible implementation manner, along the first direction X, a first mounting groove 110 is provided at an end of the first conductor 100 facing the movable conductor 300, and the first mounting groove 110 is configured to receive two first elastic pieces 401, and one ends of the two first elastic pieces 401 are fixed at a bottom of the first mounting groove 110.

The first mounting groove 110 includes a first notch 111 and a first groove bottom 112 that are disposed opposite to each other, and the groove bottom of the first mounting groove 110 is the first groove bottom 112. One end of each of the two first elastic pieces 401 is fixed to the first groove bottom 112. The two first elastic pieces 401 may be partially or fully accommodated in the first mounting groove 110. The first notch 111 faces the movable conductor 300 in a first direction X.

In the embodiment of the present application, the first elastic member 410 is fixed and accommodated in the first mounting groove 110, on one hand, the reliability of the connection between the first elastic member 410 and the first conductor 100 is improved, so as to ensure the normal and stable operation of the electrical system. On the other hand, the overall size of the first elastic member 410 and the first conductor 100 in the first direction X is reduced, facilitating downsizing of the breaking test connector 10.

In an embodiment, along the first direction X, the length of the first elastic piece 401 is less than or equal to the distance between the first notch 111 and the first groove bottom 112 (as shown in fig. 4 and 5), and the first elastic piece 401 is located in the first mounting groove 110. The first mounting groove 110 may provide good fixing and limiting functions for the first elastic member 410.

Referring to fig. 3 and 5, in one possible implementation manner, a second mounting groove 210 is disposed at an end of the second conductor 200 facing the movable conductor 300, the second mounting groove 210 is configured to receive two second elastic pieces, one ends of the two second elastic pieces are fixed to a bottom of the second mounting groove 210, and the other ends of the two second elastic pieces are configured to clamp the movable conductor 300.

The second mounting groove 210 includes a second notch 211 and a second groove bottom 212 that are disposed opposite to each other, and the groove bottom of the second mounting groove 210 is the second groove bottom 212. One end of the second elastic member 420 is fixed to the second groove bottom 212. At least part of the two second elastic pieces are accommodated in the second mounting groove 210. The second notch 211 faces the movable conductor 300 in the first direction X.

In the embodiment of the present application, the second elastic member 420 is fixed and accommodated in the second mounting groove 210, so that on one hand, the reliability of connection between the second elastic member 420 and the second conductor 200 is improved, and normal and stable operation of the electrical system is ensured. On the other hand, the overall size of the second elastic member 420 and the second conductor 200 in the first direction X is reduced, facilitating downsizing of the breaking test connector 10.

In an embodiment, along the first direction X, the length of the second elastic piece is greater than or equal to the distance between the second notch 211 and the second groove bottom 212 (as shown in fig. 4 and 5). On the one hand, the second elastic piece is disposed closer to the movable conductor 300, so that the movable conductor 300 and the second elastic piece 420 can be stably communicated when the breaking test connector 10 is in the on state or in the process of converting the breaking state into the on state, and the connection reliability of the breaking test connector 10 is improved. On the other hand, the distance between the second notch 211 and the second slot bottom 212 along the first direction X is smaller, so that the distance between the second notch 211 and the movable conductor 300 is larger, and the distance between the second conductor 200 and the movable conductor 300 is larger, thereby avoiding the direct contact and communication between the second conductor 200 and the movable conductor 300, and the secondary circuit 2 can be reliably disconnected when the breaking test connector 10 is in the breaking state, so that the safety of the secondary device 12 and the transformer 11 in maintenance is improved.

In an embodiment, a distance between the second protrusion 421 and the second groove bottom 212 is greater than or equal to a distance between the first groove 111 and the first groove bottom 112 along the first direction X. When the breaking test connector 10 is in the conductive state, one end of the movable conductor 300 is located in the two second protrusions 421 and protrudes from the second notch 211 into the second mounting groove 210. The secondary circuit 2 can be reliably disconnected when the breaking test connector 10 is in a breaking state, and the safety of the secondary equipment 12 and the transformer 11 in maintenance is improved.

Referring to fig. 4 and 5, in one possible implementation, each first spring 401 further includes a first end portion near the end of the movable conductor 300 along the first direction X, a maximum distance between the two first end portions is greater than a distance between the two first protruding portions 411 along the second direction Y, and a maximum distance between the two first end portions is greater than a dimension of the end of the movable conductor 300 near the first conductor 100.

The first opening 412 is formed between the two first ends, the first opening 412 is located at one end of the first protrusion 411 near the movable conductor 300 along the first direction X, and the maximum distance between the two first ends is the caliber of the first opening 412.

When the breaking test connector 10 is converted from the breaking state to the conducting state, the movable conductor 300 enters the first elastic member 410 from the first opening 412 and extends between the two first protruding portions 411, so that the two first protruding portions 411 clamp the movable conductor 300. The dimension of the movable conductor 300 near the end of the first conductor 100 in the first direction X may be the dimension of the end clamped by the two first protrusions 411 in the second direction Y when the breaking test connector 10 is in the conductive state. The second direction Y is perpendicular to the first direction X.

In the embodiment of the present application, the first opening 412 can allow the movable conductor 300 to enter and exit the first elastic member 410, on the one hand, the maximum distance between the two first ends is larger, that is, the caliber of the first opening 412 is larger, when the breaking test connector 10 is converted from the breaking state to the conducting state, the movable conductor 300 can be guided to enter between the two first protruding portions 411, so that the two first protruding portions 411 can clamp the movable conductor 300 more accurately and reliably when the movable conductor 300 moves along the first direction X, the reliability of connection between the movable conductor 300 and the first elastic member 410 is improved, and the secondary circuit 2 can be stably communicated when the breaking test connector 10 is in the conducting state.

Referring to fig. 4 and 5, in one possible implementation, an end of each second spring adjacent to the movable conductor 300 along the first direction X further includes a second end, a maximum distance between the two second ends is greater than a distance between the two second protrusions along the second direction Y, and a maximum distance between the two second ends is greater than a dimension of an end of the movable conductor 300 adjacent to the second conductor 200.

Wherein, a second opening 422 is formed between the two second ends, the second opening 422 is located at one end of the two second protrusions 421 near the movable conductor 300 along the first direction X, and the maximum distance between the two second ends is the caliber of the second opening 422.

The second opening 422 is used for the movable conductor 300 to enter the second elastic member 420 when assembling the breaking test connector 10. The movable conductor 300 passes through the second opening 422 and the two second protrusions 421 in sequence and is then clamped by the two second protrusions 421. The maximum distance between the two second ends is larger, i.e. the opening of the second opening 422 is larger, facilitating the connection of the movable conductor 300 to the second elastic member 420.

In one possible implementation, the length of the movable conductor 300 is greater than the distance between the first protrusion 411 and the second protrusion 421 along the first direction X. When the disconnection test connector 10 is in the conductive state, the two ends of the movable conductor 300 can be smoothly clamped between the two first protrusions 411 and between the two second protrusions 421, respectively, so that the connection reliability between the movable conductor 300 and the first elastic member 410 and the second elastic member 420 is improved.

In one possible implementation, the length of the movable conductor 300 along the first direction X is less than the maximum distance between the first protrusion 411 and the second spring. The two second elastic pieces are connected through a second connecting piece, and the second connecting piece is fixed at the second groove bottom 212. The maximum distance between the first protrusion 411 and the second elastic piece is the distance between the first protrusion 411 and the second connecting piece. The length of the movable conductor 300 is smaller than the maximum distance between the first protruding portion 411 and the second elastic piece, so that when the breaking test connector 10 is in a breaking state, the movable conductor 300 and the second connecting piece are arranged at intervals, the movable conductor 300 does not need to be bent, and the service life of the movable conductor 300 is prolonged.

In one possible implementation, the movement distance of the movable conductor 300 during the transition of the breaking test connector 10 between the conductive state and the breaking state along the first direction X is less than or equal to the distance between the second protruding portion 421 and the one end of the first elastic piece 401. One end of the first elastic sheet 401 refers to an end of the first elastic sheet 401 for being fixed to the second conductor 200. The distance between the second protrusion 421 and one end of the first elastic sheet 401 is also the distance between the second protrusion 421 and the second connecting sheet. The moving distance of the movable conductor 300 is smaller than or equal to the distance between the second protruding portion 421 and one end of the first elastic piece 401, so that the movable conductor 300 is always clamped by the two second protruding portions 421 when the breaking test connector 10 is switched between the on state and the breaking state, and the connection reliability between the movable conductor 300 and the second elastic piece 420 is improved.

Referring to fig. 2, 3 and 4, in one possible implementation, the breaking test connector 10 further includes an operating mechanism 500, where the operating mechanism 500 is fixedly connected to the movable conductor 300, and is configured to drive the movable conductor 300 to move along the first direction X. The breaking test connector 10 further includes a housing 600, wherein the first conductor 100, the first elastic member 410, the movable conductor 300, and the second conductor 200 are all located inside the housing 600, and an end of the operating mechanism 500 remote from the movable conductor 300 is located outside the housing 600.

The materials of the operating mechanism 500 and the case 600 are insulating. The casing 600 is used for protecting devices in the casing 600, and insulating and isolating the devices in the casing 600 from the outside, so as to prevent the breaking test connector from short circuit and false touch, and reduce the safety risk.

When the actuator 500 is pushed in the first direction X, the movable conductor 300 may follow the actuator 500. Along a third direction Z, one end of the operating mechanism 500 extends into the housing 600 and is fixedly connected with the movable conductor 300, and the other end of the operating mechanism 500 extends out of the housing 600, wherein the third direction Z is perpendicular to the first direction X and the second direction Y.

In the embodiment of the application, by arranging the operating mechanism 500 and the housing 600, the operating mechanism 500 is pushed out of the housing 600, so that the switching of the breaking test connector 10 between the breaking state and the conducting state can be safely and conveniently realized.

In an embodiment, one end of the operating mechanism 500 along the third direction Z is provided with a through hole (as shown in fig. 3), and the through hole penetrates through the operating mechanism 500 along the first direction X. The movable conductor 300 is fixed in the through hole, and both ends of the movable conductor 300 along the first direction X protrude out of the through hole. The contact area between the movable conductor 300 and the operating mechanism 500 is larger, and the connection stability between the movable conductor 300 and the operating mechanism 500 is larger. In addition, when the length of the first elastic member 410 is less than or equal to the distance between the first notch 111 and the first groove bottom 112, and the first elastic member 410 is located in the first installation groove 110, since the first conductor 100 is closely spaced from the movable conductor 300, the operating mechanism 500 covers the outer surface of a portion of the movable conductor 300 to insulate a portion of the movable conductor 300 from the outside. When the breaking test connector 10 is in the breaking state, the secondary circuit 2 can be prevented from being completely disconnected due to contact between the movable conductor 300 and the first conductor 100 due to vibration, deformation, or the like. In the embodiment of the application, the secondary circuit 2 can be reliably disconnected when the disconnection test connector 10 is in the disconnection state.

Referring to fig. 6 and 7, in one possible implementation, a housing 600 is provided with a slot 610, and a portion of the operating mechanism 500 is received in the slot 610. The slot 610 includes a first limiting hole wall 611 and a second limiting hole wall 612 arranged opposite to each other in the first direction X, and a distance between the first limiting hole wall 611 and the first conductor 100 in the first direction X is smaller than a distance between the second limiting hole wall 612 and the first conductor 100. When the operating mechanism 500 abuts against the first limiting hole wall 611 along the first direction X (as shown in fig. 6), the breaking test connector 10 is in a conductive state. The operating mechanism 500 abuts against the second limiting hole wall 612 (as shown in fig. 7) along the first direction X, and the breaking test connector 10 is in a breaking state.

Wherein the housing 600 includes a top plate 601, the top plate 601 being perpendicular to the third direction Z. The slot 610 penetrates the top plate 601 in the third direction X. The slot 610 communicates with the interior of the housing 600, one end of the operating mechanism 500 is located in the housing 600, and the other end of the operating mechanism 500 passes through the slot 610 and protrudes out of the housing 600. The distance between the first spacing hole wall 611 and the second spacing hole wall 612 along the first direction X is greater than the dimension of the operating mechanism 500 along the first direction X. The operating mechanism 500 is movable in a first direction X between a first limiting aperture wall 611 and a second limiting aperture wall 612.

When the operating mechanism 500 abuts against the first limiting hole wall 611 along the first direction X (as shown in fig. 6), the operating mechanism 500 and the second limiting hole wall 612 are disposed at intervals, and the first elastic member 410 and the second elastic member 420 both clamp the movable conductor 300, so that the breaking test connector 10 is in a conductive state. When the operating mechanism 500 abuts against the second limiting hole wall 612 along the first direction X (as shown in fig. 7), the operating mechanism 500 is spaced from the first limiting hole wall 611, the first elastic member 410 is disconnected from the movable conductor 300, the second elastic member 420 clamps the movable conductor 300, and the first conductor 100 and the second conductor 200 are disconnected, so that the breaking test connector 10 is in a breaking state.

In the embodiment of the present application, on the one hand, the first limiting hole wall 611 and the second limiting hole wall 612 may play a role in positioning, and the operating mechanism 500 abuts against the first limiting hole wall 611 or the second limiting hole wall 612 so that the breaking test connector 10 is in a conducting state or a breaking state.

On the other hand, the first limiting hole wall 611 and the second limiting hole wall 612 may play a limiting role, when the breaking test connector 10 is converted from the breaking state to the conducting state, the operating mechanism 500 moves toward the first conductor 100 along the first direction X, and after the first elastic member 410 clamps the movable conductor 300, the first limiting hole wall 611 may prevent the operating mechanism 500 from continuing to move toward the first conductor 100, so that the second elastic member 420 is disconnected from the movable conductor 300. Likewise, when the breaking test connector 10 is converted from the conductive state to the breaking state, the operating mechanism 500 moves toward the second conductor 200 along the first direction X, and after the first elastic member 410 is disconnected from the movable conductor 300, the second limiting hole wall 612 can prevent the operating mechanism 500 from continuing to move toward the second conductor 200, so as to cause the movable conductor 300 to bend and deform. In the application, the positioning and limiting actions of the first limiting hole wall 611 and the second limiting hole wall 612 ensure the normal and stable operation of the breaking test connector 10.

In an embodiment, along the first direction X, a distance between the first limiting hole wall 611 and the second limiting hole wall 612 is less than or equal to a distance between the first protruding portion 411 and the second protruding portion 421. The slot 610 formed in the housing 600 is smaller, so that the exposed areas of the conductive components such as the movable conductor 300, the first conductor 100, the second conductor 200, and the like in the housing 600 are smaller, and the security risk is reduced.

Referring to fig. 2 and 3, in an embodiment, the breaking test connector 10 further includes a slider 620, a sliding rail is disposed on an inner wall of the housing 600, the slider 620 is mounted on the sliding rail and can slide along the sliding rail, and one end of the operating mechanism 500 along the third direction X is fixed to the slider 620. In the embodiment of the present application, the operating mechanism 500 drives the slider 620 to slide in the sliding rail, so that the operating mechanism 500 moves more smoothly along the first direction X in the switching process of the disconnection state and the on state of the disconnection test connector 10. On the other hand, the sliding rail is arranged to enable the operation mechanism 500 to move on a predetermined route, so that the movable conductor 300 can be smoothly and accurately inserted into the first elastic member 410 in the process of switching the breaking test connector 10 from the breaking state to the conducting state, and reliable connection between the movable conductor 300 and the first elastic member 410 is ensured. In still another aspect, since the operating mechanism 500 is fixed to the slider 620 and the slider 620 is mounted on the sliding rail in the housing 600, the operating mechanism 500 is relatively fixed along the third direction X, so that the movable conductor 300 is prevented from being disconnected from the first elastic member 410 and the second elastic member 420 due to the displacement of the operating mechanism 500 along the third direction X.

In one embodiment, the breaking test connector 10 further includes a slider 620, the slider 620 being located in the housing 600 and fixed to an inner wall of the housing 600, the slider 620 and the operating mechanism 500 being aligned along the third direction Z. The slider 620 is provided with a guide rail along a side of the third direction Z near the operating mechanism 500, and one end of the operating mechanism 500 along the third direction Z is mounted on the guide rail and can slide along the slide rail.

Referring to fig. 2 and 3, in an embodiment, the operating mechanism 500 includes a fixed section 510 and a limiting section 520 connected along a third direction Z, the movable conductor 300 is fixed on the fixed section 510, a width of the fixed section 510 is smaller than a width of the limiting section 520 along a second direction Y, and the width of the fixed section 510 is smaller than or equal to a distance between two groove walls of the first mounting groove 110 along the second direction Y. Along the third direction Z, the length of the fixed segment 510 is greater than or equal to the length of the first conductor 100. The slider 620, the fixing section 510 and the limiting section 520 are sequentially arranged along the third direction Z. The through hole penetrates the fixed section 510 along the first direction X, and the movable conductor 300 is fixed in the through hole of the fixed section 510. The fixed segment 510 is smaller in size in the second direction Y and the first mounting groove 110 does not interfere with movement of the operating mechanism 500 in the first direction X. The limiting section 520 is used to abut against the first limiting hole wall 611 or the second limiting hole wall 612 when the breaking test connector 10 is switched between different states.

Referring to fig. 6 and 7, in one possible implementation, the movable conductor 300 includes a first end 301 and a second end 302 disposed opposite to each other along a first direction X, and a distance between the first end 301 and the first conductor 100 is smaller than a distance between the second end 302 and the first conductor 100 along the first direction X. In the first direction X, the distance of the actuator 500 from the first end 301 is smaller than the distance of the actuator 500 from the second end 302. Wherein, along the first direction X, the length of the movable conductor 300 on the side of the operating mechanism 500 close to the first conductor 100 is smaller than the length of the movable conductor 300 on the side of the operating mechanism 500 close to the second conductor 200.

In the embodiment of the present application, the distance between the operating mechanism 500 and the second end 302 is larger, so that the movable conductor 300 can maintain a good connection relationship with the second elastic member 420 when the disconnection test connector 10 is switched between the disconnection state and the conduction state. The distance between the operating mechanism 500 and the first end 301 is smaller, on the one hand, the moving of the operating mechanism 500 by a shorter distance can make the first elastic member 410 clamp the movable conductor 300 or break the first elastic member 410 from the movable conductor 300, so that the breaking test connector 10 can be switched between different states conveniently, and the size of the breaking test connector 10 can be reduced conveniently. On the other hand, the distance between the operating mechanism 500 and the first end 301 is small, so that the portion of the movable conductor 300 for connecting with the first elastic member 410 is relatively rigid and is not easily deformed, and when the breaking test connector 10 is converted from the breaking state to the conducting state, the movable conductor 300 can be smoothly clamped to the first elastic member 410, so that the movable conductor 300 is reliably connected with the first elastic member 410.

Referring to fig. 3, 6 and 7, in one possible implementation, the housing 600 further includes a first indicator strip 631 and a second indicator strip 632 aligned along the first direction X, the operating mechanism 500 further includes a boss 530, and the boss 530 is located outside the housing 600, and when the breaking test connector 10 is in the conductive state, the first indicator strip 631 is blocked by the boss 530; the second indicator strip 632 is shielded by the boss 530 when the breaking test connector 10 is in the breaking state.

Wherein, along the first direction X, the first indicator bar 631 is closer to the first conductor 100 than the second indicator bar 632. The first indicator bar 631 and the second indicator bar 632 are located outside the top plate 601 and are aligned with the slot 610 along the second direction Y. The boss 530 protrudes from the limiting section 520 toward the first indicator strip 631 and the second indicator strip 632 along the second direction Y.

The first indicator bar 631 and the second indicator bar 632 are used to indicate the state in which the breaking test connector 10 is in. When the projection of the first indicator strip 631 is located in the projection of the boss 530 and the projection of the first indicator strip 631 is at least partially not overlapped with the projection of the boss 530, the projection of the boss 530 covers the first indicator strip 631 and the second indicator strip 632 is exposed to the field of view when the breaking test connector is viewed from the top down in fig. 2 and 3, indicating that the breaking test connector 10 is in the conductive state. When the projection of the second indicator bar 632 is located in the projection of the boss 530 and the projection of the first indicator bar 631 at least partially does not overlap with the projection of the boss 530, the projection of the boss 530 covers the second indicator bar 632 and the first indicator bar 631 is exposed to the field of view, which indicates that the breaking test connector 10 is in a breaking state.

In one embodiment, the first indicator strip 631 and the second indicator strip 632 have different colors, and the breaking test connector 10 is judged to be in the breaking state or the conducting state by observing the different colors. Illustratively, the first indicator bar 631 is green and the second indicator bar 632 is red. It should be noted that the first indicator strip 631 and the second indicator strip 632 may be of other colors, and the first indicator strip 631 and the second indicator strip 632 may also be used to distinguish between different states of the breaking test connector 10 by text, shape, pattern, etc. Illustratively, the first indicator strip 631 has a shape O and the second indicator strip 632 has a shape I.

In the embodiment of the application, the first indicator 631 and the second indicator 632 are arranged to provide striking visual feedback, so that the on-off state of the test connector 10 can be intuitively displayed and disconnected through the first indicator 631 and the second indicator 632 when the operating mechanism 500 moves.

Referring to fig. 2, in one possible implementation, the breaking test connector 10 further includes a cover 700, where the housing 600 and the cover 700 are arranged along and connected to each other along a second direction Y, the second direction Y is perpendicular to the first direction X and the third direction Z, the housing 600 includes a mounting opening, the cover 700 is used for closing the mounting opening, and a housing cavity is defined between the cover 700 and the housing 600, and is used for housing the first conductor 100, the second conductor 200, the movable conductor 300 and the first elastic member 410.

Wherein the first conductor 100, the second conductor 200, the movable conductor 300, the first elastic member 410, and the second elastic member 420 may be mounted into the case 600 from the mounting port. When the breaking test connector 10 includes the second elastic member 420 and the operating mechanism 500, the second elastic member 420 and a part of the operating mechanism 500 are also located in the housing 600. The cover plate 700 may be fixed to the case 600 by means of screws, bolts, snaps, or the like. In the embodiment of the application, the breaking test connector 10 comprises two parts of the shell 600 and the cover plate 700, so that the convenience of assembling the breaking test connector 10 is improved.

In an embodiment, the first indicator bar 631 and the second indicator bar 632 are located on the top plate 601 of the housing 600 and are located at an end of the top plate 601 away from the cover plate 700 along the second direction Y.

Referring to fig. 3, in one possible implementation, the housing 600 further includes a first connection port 641, a second connection port 642, a first test port 643, and a second test port 644, where the first connection port 641 and the second connection port 642 are located at two ends of the housing 600 along a first direction X, the first test port 643 and the second test port 644 are located at two ends of the housing 600 along the first direction X, the first connection port 641 and the first test port 643 are arranged at intervals along a third direction Z, and the second connection port 642 and the second test port 644 are arranged at intervals along the third direction Z.

Wherein the first connection port 641 is for connecting the transformer 11 and the first conductor 100, and the second connection port 642 is for communicating the secondary device 12 and the second conductor 200.

In an embodiment, the case 600 further includes a top plate 601, the top plate 601 being perpendicular to the third direction Z, the top plate 601 including first through holes 645 and second through holes 646 arranged in the first direction X, the first through holes 645 and the second through holes 646 penetrating the top plate 601 in the third direction Z.

The connecting wire is arranged between the mutual inductor 11 and the first conductor 100, the first conductor 100 is provided with the connecting port 121 and the mounting hole 122 (shown in fig. 3) which are communicated, the connecting wire can enter the connecting port 121 from the first wiring port 641, fixing pieces such as screws can extend into the shell 600 from the first through hole 645 along the third direction Z and fix the connecting wire in the connecting port 121 of the first conductor 100 through the mounting hole 122, the fixing mode is reliable, the communication between the mutual inductor 11 and the first conductor 100 can be realized under the condition that the shell 600 is not disassembled, and the wiring convenience of the breaking test connector 10 is improved. Likewise, a connection similar to that of the transformer 11 and the first conductor 100 may be employed between the secondary device 12 and the second conductor 200.

In one embodiment, the first conductor 100 has an "L" shaped structure (as shown in FIG. 3). The first conductor 100 comprises a first segment 101 and a second segment 102 connected. The first segment 101 and the second segment 102 intersect. The extension direction of the first segment 101 is parallel to the third direction Z and the extension direction of the second segment 102 is parallel to the first direction X. The connection port 121 penetrates the first segment 101 in the first direction X away from the end face of the second segment 102 in the first direction X, and the mounting hole 122 penetrates the second segment 102 in the third direction Z and communicates with the connection port 121. Similarly, the second conductor 200 is also in an "L" configuration.

The first test port 643 and the second test port 644 are respectively communicated with the first conductor 100 and the second conductor 200, and the first test port 643 and the second test port 644 are used for performing functional test verification on the transformer 11 and the secondary device 12 when the breaking test connector 10 is in the breaking state.

Illustratively, in the embodiment shown in fig. 2, two breaking test connectors 10 are included in the secondary circuit 2, and when both breaking test connectors 10 are in a broken state, a test verification instrument connects first test ports 643 (refer to fig. 3 in combination) of both breaking test connectors 10, thereby forming a circuit between the transformer 11 and the test verification instrument to perform functional test verification on the transformer 11. The test and verification instrument connects the second test ports 644 of the two break test connectors 10, thereby forming a loop between the secondary device 12 and the test and verification instrument for functional test and verification of the secondary device 12.

In one embodiment, a test verification instrument may be plugged into the first test port 643 to electrically connect the test verification instrument with the first conductor 100 and a test verification instrument may be plugged into the second test port 644 to electrically connect the test verification instrument with the second conductor 200. The electric connection can be realized quickly and conveniently in a plugging manner.

In the embodiment of the present application, the arrangement manner of the first connection port 641, the second connection port 642, the first test port 643 and the second test port 644 can fully utilize the external space of the housing 600, and various ports are reasonably arranged, so that the volume of the breaking test connector 10 is reduced.

Referring to fig. 8 and 9, in one possible implementation, the case 600 includes a cover plate 700 and a plurality of cases 600, and the cover plate 700 and the plurality of cases 600 are sequentially aligned and sequentially connected along a second direction Y, which is perpendicular to the first direction X and the third direction Z. Each of the housings 600 includes a mounting opening, and the cover plate 700 is used to close the mounting opening of the adjacent housing 600, and the side of the housing 600 facing away from the mounting opening is used to close the mounting opening of the adjacent housing 600. A housing cavity is defined between the cover plate 700 and the adjacent housing 600 and between the adjacent two housings 600, and each housing cavity houses the first conductor 100, the second conductor 200, the movable conductor 300, the first elastic member 410 and the operating mechanism 500.

The housing 600 includes a side plate 602, and the side plate 602 and the cover 700 are aligned along the second direction Y. As shown in fig. 8, the cover plate 700 is used to close the mounting opening of the case 600a, and the side plate 602 of the case 600a may be used to close the mounting opening of the adjacent case 600 b. A housing cavity is defined between the cover 700 and the housing 600a, and a housing cavity may be defined between the housing 600a and the housing 600 b. The adjacent housings 600a and 600b share the side plate 602 of one housing 600a, which can not only save costs, but also reduce the size of the breaking test connector 10 in the second direction Y.

Each of the housings 600 constitutes one connector sub-unit with the first conductor 100, the second conductor 200, the movable conductor 300, the first elastic member 410, and the second elastic member 420 in the corresponding housing 600, each of which can be used to break the secondary circuit 2. The above-described relationships and the like regarding the positions, structures, etc. of the housing 600, the first conductor 100, the second conductor 200, the movable conductor 300, the first elastic member 410, and the second elastic member 420 are applicable to the positions, structural relationships regarding the housing 600, the first conductor 100, the second conductor 200, the movable conductor 300, the first elastic member 410, and the second elastic member 420 in each connector sub-member in the present embodiment, and are not described herein.

In the embodiment of the present application, the breaking test connector 10 includes a plurality of connector sub-members, and the plurality of connector sub-members are sequentially arranged along the second direction Y. The plurality of connector sub-pieces can be used for breaking different secondary circuits 2 or unused positions of the same secondary circuit 2, and the lines are intensively connected to the same breaking test connector 10, so that the line arrangement is more regular and the number of the breaking test connectors 10 can be reduced. On the other hand, in the embodiment of the present application, the first conductor 100, the second conductor 200 and the movable conductor 300 in the same connector sub-assembly are arranged along the first direction X, two ends of the connector sub-assembly along the first direction X are used for connecting the transformer 11 and the secondary device 12, the operating mechanism 500 extends along the third direction X and is connected to the movable conductor 300, the operating mechanism 500 moves along the first direction X to realize the conversion of the breaking test connector 10 between different states, and at this time, two sides of the connector sub-assembly along the second direction Y have larger spaces, and a plurality of connector sub-assemblies are arranged along the second direction Y, so that the overall size of the breaking test connector 10 can be reduced.

In an embodiment, the dimension of the housing 600 along the first direction X is greater than the dimension of the housing 600 along the second direction Y. The dimension of the case 600 in the third direction Z is greater than the dimension of the case 600 in the second direction Y.

Referring to fig. 8, in one possible implementation, an end of the operating mechanism 500 facing away from the housing 600 along the third direction Z includes a groove 540, and the grooves 540 of the operating mechanisms 500 are in communication along the second direction Y. The breaking test connector 10 further includes a coupler 550. When the coupler 550 is positioned within the recess 540 of two adjacent operators 500, the two operators 500 are coupled.

The length of the coupler 550 along the second direction Y is less than or equal to the length of the groove 540 along the second direction Y, and the length of the groove 540 along the second direction Y is also the length of the housing 600 along the second direction Y. When the coupler 550 is simultaneously located in two adjacent grooves 540, that is, when a part of the coupler 550 is located in the groove 540 of the operating mechanism 500a and another part of the coupler 550 is located in the groove 540 of the operating mechanism 500b (as shown in fig. 8 and 9), the operating mechanism 500a is coupled with the operating mechanism 500b, and when the operating mechanism 500a moves, the coupler 550 can be driven to move so as to drive the operating mechanism 500b to move, so that a plurality of connector sub-components can be simultaneously disconnected or conducted, and the disconnection and conduction of a plurality of lines can be more conveniently controlled by the disconnection test connector 10.

In addition, since the length of the coupler 550 along the second direction Y is less than or equal to the length of the groove 540 along the second direction Y, the coupler 550 can be received in one groove 540 (as shown in fig. 10), and the plurality of operating mechanisms 500 are decoupled at this time, and the plurality of operating mechanisms 500 are not mutually affected, so that the states of the plurality of connector sub-components can be controlled respectively.

In an embodiment, the housing 600 further includes a short port 650, and the short port 650 penetrates the top plate 601 of the housing 600 in the third direction Z. Equipotential connections between connector sub-parts may be made through short interface 650.

Please refer to fig. 11 and 12. In this embodiment, the difference from the embodiment shown in fig. 4 and 5 is that the first elastic member 410 is fixed to the movable conductor 300, and when the breaking test connector 10 is in the conductive state, the first elastic member 410 is used to clamp the first conductor 100, and when the conductive state is switched to the breaking state, the movable conductor 300 is far away from the first conductor 100, so that the first elastic member 410 is disconnected from the first conductor 100.

Please refer to fig. 11 and 12. In this embodiment, the difference from the embodiment shown in fig. 4 and 5 is that the second elastic member 420 is used for fixedly connecting with the movable conductor 300, and the second elastic member 420 is used for clamping the second conductor 200.

The above-described descriptions and modifications regarding the positions, structures, etc. of the housing 600, the first conductor 100, the second conductor 200, the movable conductor 300, the first elastic member 410, and the second elastic member 420 are applicable to the embodiments in fig. 11 and 12, and are not repeated herein.

The present application further provides a breaking test connector 10, and descriptions and modification schemes of the structure of the breaking test connector 10 and connection relationships of the components can refer to descriptions and modification schemes of the structure of the breaking test connector 10 and connection relationships of the components described above, and are not described herein.

The breaking test connector and the box-type transformer provided by the embodiment of the application are described in detail, and specific examples are applied to the description of the principle and the embodiment of the application, and the description of the embodiment is only used for helping to understand the method and the core idea of the application; meanwhile, as those skilled in the art will have variations in specific embodiments and application scope in light of the ideas of the present application, the present description should not be construed as limiting the present application.

Claims

1. A box-type substation, characterized in that the box-type substation includes a transformer, a secondary device and a disconnect test connector, the disconnect test connector includes a first conductor, a first elastic member, a movable conductor and a second conductor, the first conductor is used to connect the transformer, and the second conductor is used to connect the secondary device;

The first conductor, the movable conductor and the second conductor are arranged along a first direction, the movable conductor can move along the first direction, the movable conductor is connected to the second conductor, and the first elastic member is used to be fixedly connected to one of the movable conductor and the first conductor;

The disconnect test connector includes an on state and an off state. When the disconnect test connector is in the off state, the first elastic member is disconnected from the movable conductor and the other of the first conductors. When the disconnect test connector is converted from the off state to the on state, the movable conductor and the other of the first conductors extend into the first elastic member along the first direction so that the first elastic member undergoes elastic deformation to clamp the movable conductor and the other of the first conductors.

2. The box-type substation according to claim 1 is characterized in that the disconnect test connector also includes a second elastic member, which is used to be fixedly connected to one of the second conductor and the movable conductor, and one end of the other of the second conductor and the movable conductor is located in the second elastic member so that the second elastic member undergoes elastic deformation to clamp the other of the second conductor and the movable conductor.

3. The box-type substation according to claim 2, characterized in that the first elastic member comprises two first spring sheets connected to each other, the two first spring sheets are arranged along the second direction, the two first spring sheets are used to clamp the movable conductor and the other of the first conductors in the conducting state, when the disconnect test connector is in the disconnecting state, along the second direction, the distance between the two first spring sheets is a first distance, the size of the movable conductor and the other of the first conductor along the second direction is greater than the first distance, and the second direction is perpendicular to the first direction;

The second elastic member includes two connected second elastic sheets, the two second elastic sheets are arranged along the second direction, and when the two second elastic sheets are used to clamp the movable conductor and the other of the first conductors, the two second elastic sheets generate an elastic force to move them closer to each other.

4. The box-type substation according to claim 3, characterized in that, along the first direction, one end of the two first elastic sheets is fixed to one end of the first conductor close to the movable conductor, the other end of each of the first elastic sheets comprises a first convex portion, the first convex portion is located on the inner side of the first elastic sheet, when the disconnect test connector is in the conducting state, the two first convex portions clamp the movable conductor, and when the disconnect test connector is in the disconnecting state, the movable conductor is separated from the two first convex portions;

Along the first direction, one end of the two second elastic sheets is fixed to one end of the second conductor close to the movable conductor, and the other end of each second elastic sheet includes a second protrusion, which is located on the inner side of the second elastic sheet, and the two second protrusions clamp the movable conductor.

5. The box-type substation according to claim 3, characterized in that, along the first direction, one end of the first conductor facing the movable conductor is provided with a first mounting groove, the first mounting groove is used to accommodate the two first elastic sheets, and one end of the two first elastic sheets is fixed to the bottom of the first mounting groove;

Along the first direction, one end of the second conductor facing the movable conductor is provided with a second mounting groove, and the second mounting groove is used to accommodate the two second elastic sheets, and one end of the two second elastic sheets is fixed to the groove bottom of the second mounting groove.

6. The box-type substation according to claim 4, characterized in that each of the first elastic pieces further comprises a first end portion at one end close to the movable conductor along the first direction, and along the second direction, the maximum distance between the two first ends is greater than the distance between the two first protrusions, and the maximum distance between the two first ends is greater than the size of the end of the movable conductor close to the first conductor;

Each of the second elastic sheets also includes a second end portion at one end close to the movable conductor along the first direction. Along the second direction, the maximum distance between the two second ends is greater than the distance between the two second protrusions, and the maximum distance between the two second ends is greater than the size of the end of the movable conductor close to the second conductor.

7. The box-type substation according to claim 4, characterized in that, along the first direction, the length of the movable conductor is greater than the distance between the first protrusion and the second protrusion, and less than the maximum distance between the first protrusion and the second elastic piece;

Along the first direction, during the switching process between the conducting state and the disconnecting state of the disconnecting test connector, the moving distance of the movable conductor is less than or equal to the distance between the second protrusion and one end of the first elastic sheet.

8. The box-type substation according to claim 3, characterized in that, along the first direction, one end of the two first elastic sheets is fixed to one end of the movable conductor close to the first conductor, the other end of each of the first elastic sheets comprises a first convex portion, the first convex portion is located on the inner side of the first elastic sheet, when the disconnect test connector is in the conducting state, the two first convex portions clamp the first conductor, and when the disconnect test connector is in the disconnecting state, the first conductor is separated from the two first convex portions;

Along the first direction, one end of the two second elastic sheets is fixed to one end of the movable conductor close to the second conductor, and the other end of each second elastic sheet includes a second protrusion, which is located on the inner side of the second elastic sheet, and the two second protrusions clamp the second conductor.

9. The box-type substation according to any one of claims 1 to 8, characterized in that the disconnect test connector further comprises an operating mechanism, the operating mechanism is fixedly connected to the movable conductor and is used to drive the movable conductor to move along the first direction;

The disconnect test connector further comprises a housing, wherein the first conductor, the first elastic member, the movable conductor and the second conductor are all located inside the housing, and an end of the operating mechanism away from the movable conductor is located outside the housing.

10. The box-type substation according to claim 9, characterized in that the movable conductor comprises a first end and a second end arranged opposite to each other along the first direction, and along the first direction, the distance between the first end and the first conductor is smaller than the distance between the second end and the first conductor;

Along the first direction, the distance between the operating mechanism and the first end is smaller than the distance between the operating mechanism and the second end.

11. The box-type substation according to claim 9, characterized in that the shell further comprises a slot hole, the slot hole accommodates part of the operating mechanism, the slot hole comprises a first limiting hole wall and a second limiting hole wall arranged opposite to each other along the first direction, and along the first direction, the distance between the first limiting hole wall and the first conductor is smaller than the distance between the second limiting hole wall and the first conductor;

When the operating mechanism abuts against the first limiting hole wall along the first direction, the disconnect test connector is in the conducting state; when the operating mechanism abuts against the second limiting hole wall along the first direction, the disconnect test connector is in the disconnecting state.

12. The box-type substation according to claim 9, characterized in that the shell further comprises a first indicator bar and a second indicator bar arranged along the first direction, and the operating mechanism further comprises a boss, and the boss is located outside the shell;

When the disconnect test connector is in the conducting state, the first indicator bar is blocked by the boss; when the disconnect test connector is in the disconnected state, the second indicator bar is blocked by the boss.

13. The box-type substation according to claim 9 is characterized in that the shell further comprises a first wiring port, a second wiring port, a first test port and a second test port, the first wiring port is used to connect the first conductor and the mutual inductor, the second wiring port is used to connect the second conductor and the secondary device, the first test port and the second test port are used to connect the detection instrument when the disconnect test connector is in the disconnected state; the first wiring port and the second wiring port are respectively located at two ends of the shell along the first direction, the first test port and the second test port are respectively located at two ends of the shell along the first direction, the first wiring port and the first test port are arranged at intervals along a third direction, the second wiring port and the second test port are arranged at intervals along the third direction, and the third direction is perpendicular to the first direction and the second direction;

The shell further includes a top plate, which is perpendicular to the third direction. The top plate includes a first through hole and a second through hole arranged along the first direction, and the first through hole and the second through hole penetrate the top plate along the third direction.

14. The box-type substation according to claim 9 is characterized in that the disconnect test connector comprises a plurality of shells, the plurality of shells are sequentially arranged and sequentially connected along the second direction, each of the shells accommodates the first conductor, the second conductor, the movable conductor, the first elastic member and the operating mechanism, one end of the operating mechanism away from the movable conductor along the third direction is located outside the shell, one end of the operating mechanism away from the movable conductor along the third direction comprises a groove, and the grooves of the plurality of operating mechanisms are connected along the second direction; the second direction, the third direction and the first direction are perpendicular to each other;

The disconnect test connector further comprises a coupler. When the coupler is received in the grooves of two adjacent operating mechanisms, the two operating mechanisms are coupled.

15. A disconnect test connector, characterized in that the disconnect test connector comprises a first conductor, a first elastic member, a movable conductor, a second elastic member and a second conductor, the first conductor, the movable conductor and the second conductor are arranged along a first direction, the movable conductor can move along the first direction, the movable conductor is connected to the second conductor, the second elastic member is used to be fixedly connected to one of the second conductor and the movable conductor, and one end of the other of the second conductor and the movable conductor is located in the second elastic member so that the second elastic member is elastically deformed to clamp the other of the second conductor and the movable conductor, and the first elastic member is used to be fixedly connected to one of the movable conductor and the first conductor;

16. The disconnect test connector according to claim 15, characterized in that the first elastic member comprises two first spring sheets connected to each other, the two first spring sheets are arranged along a second direction, the two first spring sheets are used to clamp the movable conductor and the other of the first conductors in the on state, when the disconnect test connector is in the disconnected state, along the second direction, the distance between the two first spring sheets is a first distance, the size of the movable conductor and the other of the first conductor along the second direction is greater than the first distance, and the second direction is perpendicular to the first direction;

17. The disconnect test connector according to claim 16, characterized in that, along the first direction, one end of the first conductor facing the movable conductor is provided with a first mounting groove, the first mounting groove is used to accommodate the two first spring sheets, one end of the two first spring sheets is fixed to the bottom of the first mounting groove, the other end of each of the first spring sheets comprises a first convex portion, the first convex portion is located on the inner side of the first spring sheet, when the disconnect test connector is in the conducting state, the two first convex portions clamp the movable conductor, and when the disconnect test connector is in the disconnected state, the movable conductor is separated from the two first convex portions;

Along the first direction, the second conductor is provided with a second mounting groove at one end facing the movable conductor, and the second mounting groove is used to accommodate the two second spring sheets, one end of the two second spring sheets is fixed to the bottom of the second mounting groove, and the other end of each second spring sheet includes a second protrusion, and the second protrusion is located on the inner side of the second spring sheet, and the two second protrusions clamp the movable conductor.

18. The disconnect test connector according to claim 17, characterized in that each of the first elastic pieces further comprises a first end portion at one end close to the movable conductor along the first direction, and along the second direction, a maximum distance between the two first ends is greater than a distance between the two first protrusions, and a maximum distance between the two first ends is greater than a size of the end of the movable conductor close to the first conductor;

Each of the second elastic pieces further comprises a second end portion at one end close to the movable conductor along the first direction, and along the second direction, a maximum distance between the two second ends is greater than a distance between the two second protrusions, and a maximum distance between the two second ends is greater than a size of the end of the movable conductor close to the second conductor;

Along the first direction, the length of the movable conductor is greater than the distance between the first protrusion and the second protrusion, and less than the maximum distance between the first protrusion and the second elastic piece;

19. The disconnect test connector according to claim 16, characterized in that, along the first direction, one end of the movable conductor facing the first conductor is provided with a first mounting groove, the first mounting groove is used to accommodate the two first spring sheets, one end of the two first spring sheets is fixed to the bottom of the first mounting groove, the other end of each of the first spring sheets comprises a first convex portion, the first convex portion is located on the inner side of the first spring sheet, when the disconnect test connector is in the conducting state, the two first convex portions clamp the first conductor, and when the disconnect test connector is in the disconnected state, the first conductor is separated from the two first convex portions;

Along the first direction, the movable conductor is provided with a second mounting groove at one end facing the second conductor, and the second mounting groove is used to accommodate the two second spring sheets, one end of the two second spring sheets is fixed to the bottom of the second mounting groove, and one end of the two second spring sheets is fixed to an end of the movable conductor close to the second conductor, and the other end of each second spring sheet includes a second protrusion, and the second protrusion is located on the inner side of the second spring sheet, and the two second protrusions clamp the second conductor.

20. The disconnect test connector according to any one of claims 15 to 19, characterized in that the disconnect test connector further comprises an operating mechanism, the operating mechanism is fixedly connected to the movable conductor, and is used to drive the movable conductor to move along the first direction; the disconnect test connector further comprises a shell, the first conductor, the first elastic member, the movable conductor and the second conductor are all located in the shell, and one end of the operating mechanism away from the movable conductor is located outside the shell;

The movable conductor comprises a first end and a second end disposed opposite to each other along the first direction, wherein along the first direction, a distance between the first end and the first conductor is smaller than a distance between the second end and the first conductor, and along the first direction, a distance between the operating mechanism and the first end is smaller than a distance between the operating mechanism and the second end;

The shell further includes a first indicator bar and a second indicator bar arranged along the first direction, and the operating mechanism further includes a boss, which is located outside the shell. When the disconnect test connector is in the on state, the first indicator bar is blocked by the boss; when the disconnect test connector is in the disconnect state, the second indicator bar is blocked by the boss.

21. The disconnect test connector according to claim 20, characterized in that the disconnect test connector comprises a plurality of shells, the plurality of shells are sequentially arranged and sequentially connected along the second direction, each of the shells accommodates the first conductor, the second conductor, the movable conductor, the first elastic member and the operating mechanism, one end of the operating mechanism away from the movable conductor along the third direction is located outside the shell, one end of the operating mechanism away from the movable conductor along the third direction comprises a groove, and the grooves of the plurality of operating mechanisms are connected along the second direction; the second direction, the third direction and the first direction are perpendicular to each other;