CN205231314U - Disconnect secondary circuit and termination do not have a power failure and and meet terminal arrangement thereof - Google Patents

Abstract

The utility model provides a disconnect secondary circuit and termination do not have a power failure and and meet terminal arrangement thereof should and connect terminal arrangement to include: the connecting piece with and connect the terminal row, wherein, and connect the terminal row to pass through the connecting piece links to each other with the terminal row. The application provides a should and connect terminal arrangement to link to each other with former terminal row through its connecting piece to it provides new wiring position to guarantee under the former terminal row wiring full condition, avoid when demolising geju city protection screen, and the equipment at old protection screen both ends is unable to continue the power supply operation, thus the emergence of the condition about need cut off the power supply on a large scale.

Description

A device for disconnecting and connecting secondary circuits without power failure and its parallel connection terminal device

technical field

The present application relates to the technical field of electric equipment, and in particular to a device for disconnecting and connecting secondary circuits without power failure and a parallel connection terminal device.

Background technique

With the continuous aging of substations and the construction of new substations, a large number of protection and transformation work needs to be added. The protection and transformation of substations involves the removal and transformation of a large number of secondary protection screens and measurement and control screens.

At present, the protective screens are connected through the terminal block as shown in Figure 1. The two wiring positions 1 of the terminal block are respectively connected to a protective screen. When one of the old protective screens is removed, it will directly cause the terminals in the old screen to The voltage, current, and DC connected in parallel are disconnected, so the relevant primary equipment and secondary equipment must be stopped. Among them, the primary equipment includes generators, transformers, motors, switchgear, transformers, reactors and lightning arresters, etc., and the secondary equipment includes various electrical instruments, relays, automatic control equipment, signal cables and control cables, etc.

Therefore, in the prior art, a large-scale power outage is required when removing the old protective screen, which directly expands the scope of power outages and brings difficulties to the progress of protection and transformation.

Utility model content

In view of this, the present application provides a device for disconnecting and connecting the secondary circuit without power failure and wiring, to overcome the need for large-scale power outages when removing the old protective screen in the prior art, directly expand the power outage range, and provide protection transformation Progress brings difficult questions.

In order to achieve the above object, the application provides the following technical solutions:

A parallel terminal device, characterized in that it includes: a connector and a parallel terminal block, wherein,

The parallel terminal block is connected to the terminal block through the connecting piece.

Preferably, the connecting piece is a metal bolt.

Preferably, the part of the parallel connection terminal block corresponding to the dismounting opening of the wiring position of the terminal block is provided with a conduction hole for easy insertion of a screwdriver.

Preferably, the parallel terminal block includes: a housing and at least one connection position.

Preferably, the casing of the parallel terminal block is a plastic casing.

A device for disconnecting and connecting secondary circuits without power failure, comprising: a terminal block and any one of the above-mentioned parallel terminal devices.

Preferably, the terminal block includes: a housing and two connection positions connected by metal sheets.

Preferably, the shell of the terminal block is a plastic shell.

It can be seen from the above technical solutions that this application provides a new type of non-stop disconnecting secondary circuit parallel wiring device and its parallel terminal device. The parallel terminal device includes: a connector and a parallel terminal block, wherein the The parallel terminal block is connected to the terminal block through the connecting piece. The parallel terminal device provided by this application can be connected to the original terminal block through its connectors, so as to ensure that when the original terminal block is full, a new wiring position is provided, and it is avoided that when an old protective screen is removed, the old protective screen The equipment at both ends cannot continue to operate with power supply, which requires a large-scale power outage.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description It is only an embodiment of the utility model, and those skilled in the art can also obtain other drawings according to the provided drawings without creative work.

FIG. 1 is a schematic structural diagram of a terminal block used in the prior art;

Fig. 2 is a schematic structural diagram of a parallel terminal device provided in Embodiment 1 of the present application;

Fig. 3 is a schematic structural diagram of a device for disconnecting and connecting secondary circuits without power failure provided in Embodiment 2 of the present application;

Fig. 4 is a schematic diagram of a connection between protective screens provided by the present application through terminal strip wiring;

Fig. 5 is a schematic diagram of laying temporary cables between protective screens provided by the present application.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

In order to overcome the problem in the prior art that a large-scale power outage is required when removing the old protective screen, which directly expands the power outage range and brings difficulties to the progress of the protection transformation, this application provides a method of disconnecting the secondary circuit without power outage and Wiring device, the specific scheme is as follows:

Embodiment one

Embodiment 1 of the present application provides a parallel connection terminal device, the parallel connection terminal device includes: a connector and a parallel connection terminal strip, wherein,

The parallel connection terminal block is connected with the terminal block through the connector.

Specifically, in this application, the connecting member may be a metal bolt, which is used to fix the parallel terminal block and the original terminal block together as required, and can be disassembled when not needed.

As shown in FIG. 2 , FIG. 2 is a schematic structural diagram of a parallel connection terminal device provided in Embodiment 1 of the present application. As shown in FIG. 2 , the parallel connection terminal block 101 includes: a housing 1011 and at least one connection position 1012 .

The parallel connection terminal block 101 is provided with a through hole 1 which is convenient for a screwdriver to penetrate into the part corresponding to the dismounting opening of the wiring position of the terminal block, so as to facilitate the removal or replacement of the wiring on the original terminal block.

The metal bolt 102 runs through and connects to the terminal block 101 , and the protruding part is connected to the original terminal block.

The housing 1011 parallel to the terminal block 101 is a plastic housing or a housing made of other insulating materials, which is not limited in this application and can be selected according to actual needs.

It can be seen from the above technical solutions that the parallel connection terminal device provided by the present application, which is applied to the disconnection of the secondary circuit and the wiring device without power failure, includes: a connector and a parallel connection terminal block, wherein the parallel connection terminal block is connected with the connection part through the connection part. connected to the terminal block. The parallel connection terminal device can be directly connected to the original terminal block in parallel to expand the wiring position of the original terminal block, thus avoiding the occurrence of large-scale power outages when the old protective screen is removed, and shortening the protection, measurement and control reconstruction work. The scope of power outage ensures the safety of power grid operation, so that the work period can be reasonably arranged to avoid reducing work safety in order to catch up with the construction period. Moreover, it avoids the change of the circuit in the protection, measurement and control transformation, and the change of the circuit but the drawing is not completely changed, thus bringing safety hazards to the later maintenance of the equipment, and ensuring the safe operation of the equipment after it is put into operation.

Embodiment two

Embodiment 2 of the present application provides a secondary circuit disconnection and wiring device without power failure, including the parallel connection terminal device and terminal block provided in Embodiment 1. Specifically include: terminal blocks, connectors and parallel terminal blocks. The terminal block and the parallel terminal block are connected by connecting pieces. Wherein, the connecting piece may be a metal bolt.

Specifically, as shown in FIG. 3 , FIG. 3 is a schematic structural diagram of a device for disconnecting and connecting secondary circuits without power failure and wiring according to Embodiment 2 of the present application.

The device for connecting and disconnecting the secondary circuit without power failure includes: a terminal block 101, a metal bolt 102 and a parallel connection terminal block 103, wherein,

The parallel connection terminal block includes: a housing and at least one wiring position.

The part corresponding to the disassembly port of the parallel connection terminal block and the wiring position of the terminal block is provided with a conduction hole (not marked in the figure) for easy insertion of a screwdriver, so as to facilitate the removal or replacement of the wiring on the original terminal block.

The metal bolt 102 runs through and connects to the terminal block 103 , and the protruding part is connected to the terminal block 101 .

The casing of the parallel terminal block 103 is a plastic casing or a casing made of other insulating materials, which is not limited in this application and can be selected according to actual needs.

In this application, the terminal block includes: the shell and two connection positions connected by metal sheets. When the terminal block is connected to the parallel terminal block, the metal bolts need to be connected to the metal sheets. Specifically, the metal bolts can be connected with the metal sheets. The contact connection or through connection of the metal sheet is not specifically limited in this application.

The housing of the terminal block is a plastic housing or a housing made of other insulating materials, which is not limited in this application and can be selected according to actual needs.

For example, as shown in FIG. 4 , FIG. 4 is a schematic diagram of a connection between protective screens through terminal strip wiring provided by the present application. The three protective screens A, B, and C are connected through the wiring position on the terminal block (that is, the part connected to the line on the protective screen in the figure). When the B protective screen needs to be removed, the protection of the A screen and the C screen must be deactivated, which leads to the expansion of the power outage range.

However, when using the parallel connection terminal device provided by this application or directly using the parallel connection device provided by this application, the schematic diagram of laying temporary cables between the protective screens as shown in Figure 5 can be shown. When the B protective screen is to be removed, By placing the temporary cable 1 between the A and C screens, it is ensured that no power outage is required when the B screen is removed, thereby reducing the scope of power outages and ensuring the safety of the power grid operation.

It can be seen from the above technical solutions that the non-power-off disconnecting secondary circuit and wiring device provided in the second embodiment of the present application includes the parallel connection terminal device and the terminal block provided in the first embodiment. The non-power disconnecting secondary circuit and wiring device detachably connects an original terminal block and a parallel connection terminal block, and expands the corresponding wiring positions for the original terminal block, thus avoiding large damage when removing the old protective screen. The occurrence of large-scale power outages reduces the scope of power outages in protection, measurement and control transformation, and ensures the safety of power grid operation, so that the work schedule can be reasonably arranged to avoid reducing work safety in order to meet the deadline. Moreover, it avoids the change of the circuit in the protection, measurement and control transformation, and the change of the circuit but the drawing is not completely changed, thus bringing safety hazards to the later maintenance of the equipment, and ensuring the safe operation of the equipment after it is put into operation.

Each embodiment in this specification is described in a progressive manner, each embodiment focuses on the difference from other embodiments, and the same and similar parts of each embodiment can be referred to each other.

The above description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the application. Therefore, the present application will not be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (8)

1. and a connecting terminal device, it is characterized in that, comprising: connector and and connecting terminal row, wherein, described and connecting terminal row is connected with terminal board by described connector.

2. according to claim 1 and connecting terminal device, it is characterized in that, described connector is metal bolts.

3. according to claim 1 and connecting terminal device, is characterized in that, the described and position that connecting terminal row is corresponding to the dismounting mouth of the wiring position of described terminal board, is provided with the via be convenient to screwdriver and stretched into.

4. according to claim 1 and connecting terminal device, it is characterized in that, described and connecting terminal package is drawn together: shell and at least one wiring position.

5. according to claim 4 and connecting terminal device, is characterized in that, described and shell that is connecting terminal row is plastic casing.

6. do not have a power failure and disconnect secondary circuit and a termination, it is characterized in that, comprising: terminal board and the also connecting terminal device described in claim 1 to 5 any one.

7. according to claim 6 power failure disconnects secondary circuit and termination, it is characterized in that, described terminal board comprises: shell and two wiring positions be connected by sheet metal.

8. according to claim 7 power failure disconnects secondary circuit and termination, it is characterized in that, the shell of described terminal board is plastic casing.