CN213460862U

CN213460862U - Heavy current inflatable metering cabinet

Info

Publication number: CN213460862U
Application number: CN202022184752.1U
Authority: CN
Inventors: 程相浩; 熊星良; 田欣欣
Original assignee: Shanghai Qiangu Electric Power Technology Co ltd
Current assignee: Shanghai Qiangu Electric Power Technology Co ltd
Priority date: 2020-09-29
Filing date: 2020-09-29
Publication date: 2021-06-15
Anticipated expiration: 2030-09-29

Abstract

The utility model relates to a power equipment technical field is a heavy current inflatable measurement cabinet particularly, the intelligent cabinet temperature adjusting device comprises a cabinet body, the internal generating line air chamber that is equipped with of cabinet, the inside generating line sleeve pipe, main female row, main generating line and the voltage transformer of being equipped with of generating line air chamber, the generating line sleeve pipe set up relatively in on the inner wall on generating line air chamber left and right sides upper portion, the space that forms between the generating line sleeve pipe is used for placing voltage transformer, the generating line sleeve pipe passes through main female row and main bus connection voltage transformer, the main female row of both sides passes through the outer insulating bus connection of generating line air chamber. The utility model provides a large current inflatable measurement cabinet has solved the insulation problem in high altitude area to through current transformer's reasonable setting, make the installation the utility model discloses an air insulated switchgear reduces 2/3 than conventional air insulated switchgear volume, practices thrift the cost, saves area.

Description

Heavy current inflatable metering cabinet

Technical Field

The utility model relates to a power equipment technical field is a heavy current inflatable measurement cabinet particularly.

Background

The metering cabinet is a commonly used metering device in the field of power supply, and is mainly used for metering electric energy such as current, voltage and the like in a power supply circuit.

In high-altitude areas, along with the rising of height above sea level, air pressure and density can descend thereupon, cause electrical equipment's outer fringe insulating properties to descend easily, and the measurement cabinet of heavy current also can produce insulating problem under the high-altitude circumstances, in order to guarantee insulating, often can be with the great some of measurement cabinet design, but the too big not easy installation in high-altitude areas of measurement cabinet body, brought very big inconvenience to installation, maintenance and the use of measurement cabinet in high-altitude areas.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve the not enough of prior art, provide a heavy current inflatable measurement cabinet to solve foretell problem.

In order to achieve the above object, the utility model adopts the following scheme:

the utility model provides a heavy current inflatable measurement cabinet, includes the cabinet body, the internal generating line air chamber that is equipped with of cabinet, the inside generating line sleeve pipe, main female arranging, main generating line and the voltage transformer of being equipped with of generating line air chamber, the generating line sleeve pipe set up relatively in on the inner wall on generating line air chamber left and right sides upper portion, the space that forms between the generating line sleeve pipe is used for placing voltage transformer, the generating line sleeve pipe passes through main female arranging and main bus connection voltage transformer, the main bus bar of both sides is connected through the outer insulating generating line of generating line air chamber.

The utility model discloses still have following preferred technical scheme:

external sleeves are arranged on two sides of the bottom of the bus air chamber, the external sleeves are connected with a main bus bar inside the bus air chamber, and the external sleeves are connected with the bus air chamber through an insulated bus.

Further, the bus sleeve comprises two groups, wherein one group comprises A, B, C three phases, and the A, B, C three phases are arranged in a straight line.

Furthermore, the phase A and the phase C are connected with one of the lead posts below each voltage transformer through a main bus bar and a main bus bar, and the phase B is connected with the rest of the lead posts of the voltage transformer through the main bus bar, the main bus bar and a branch bus bar.

Furthermore, a current transformer is sleeved on the insulated bus connected with the phase A and the phase C through the main busbar and the external sleeve.

Furthermore, a three-way joint is arranged at the joint of the insulated bus and the external sleeve.

Further, the main busbar comprises a first main busbar and a second main busbar, one end of the first main busbar is connected with the busbar sleeve, the other end of the first main busbar is connected with the second main busbar, the main busbar is connected onto the first main busbar, and the second main busbar is connected with the external sleeve.

Beneficial effects of the utility model

The utility model provides a heavy current inflatable metering cabinet has solved the insulating problem of the air insulated switchgear that has inflatable metering cabinet in high altitude area, through the reasonable setting of current transformer, makes the installation the utility model discloses an air insulated switchgear volume reduces 2/3 than conventional air insulated switchgear, practices thrift the cost, saves area; the current and voltage mutual inductors of the utility model have fully sealed conductive parts, which is convenient for maintenance and replacement; insulation devices in the bus air chamber are arranged in a bilateral symmetry mode, so that the electric field is uniformly distributed;

drawings

Fig. 1 schematically illustrates a front structural view of a large-current inflatable metering cabinet according to the present invention;

fig. 2 schematically shows a perspective structure of a large-current inflatable metering cabinet according to the present invention;

in the figure: 1. the bus air chamber 2, the bus sleeve 3, the first main bus 4, the second main bus 5, the external sleeve 6, the three-way joint 7, the insulated bus 8, the current transformer 9, the internal sleeve 10, the voltage transformer 11, the main bus 12 and the branch bus.

Detailed Description

The following describes the embodiments of the present invention with reference to the accompanying drawings.

Referring to fig. 1 and 2, an embodiment of the present invention provides a large current inflatable metering cabinet, which includes a bus air chamber 1, a bus sleeve 2, a first main bus bar 3, a second main bus bar 4, an external sleeve 5, an internal sleeve 9, a voltage transformer 10, a main bus bar 11, and a branch bus bar 12 are provided in the bus air chamber 1.

Bus sleeve 2 first main female arranging 3, the main female arranging 4 of second and external sleeve 5 connects gradually, just bus sleeve 2 first main female arranging 3, main generating line 11, branch generating line 12, internal sleeve 9 and voltage transformer 10 connect gradually, wherein bus sleeve 2 first main female arranging 3, the main female arranging 4 of second and external sleeve 5 is in from top to bottom distributes gradually in the bus air chamber 1. The bus sleeve 2 is located on the upper portions of the inner walls of the two sides of the bus air chamber 1, the external sleeve 5 is located at the bottom of the inner side of the bus air chamber 1, the bus sleeve 2 comprises two sets of bus sleeves which are oppositely arranged, and the voltage transformer 10 is located in a space formed between the bus sleeves 2. This makes it possible to keep the volume of the busbar plenum 1 as small as possible.

In this embodiment, including two sets of corresponding bus sleeve pipes, wherein a set of bus sleeve pipe divide into A, B, C three-phases, and each is connected first main arranging, first main arranging and each looks bus sleeve pipe one-to-one, connect the first bus row of A looks, connect the first bus row of B looks and be equipped with main bus 11 on the first bus row of C looks, connect the first bus row of A looks and connect the first bus row of C looks through main bus 11 directly with the inscription bushing connection of voltage transformer 10 lower part, connect the first bus row of B looks through main bus 11 and connect branch bus 12, branch bus 12 and the inscription bushing connection of voltage transformer 10 lower part. The other group of bus sleeves is correspondingly divided into three phases.

In this embodiment, including two voltage transformer 10 that set up relatively, every voltage transformer 10 below is equipped with a pair of conducting post, it overlaps to lead electrical pillar in the inscribe bushing 9, connects the first generating line row of B looks through main bus 11 connection branch generating line 12, makes it be connected with the wire post at two mutual-inductor both ends simultaneously, connects the first generating line row of A looks and connects the first generating line row of C looks and pass through main bus 11 respectively with the remaining conducting post in every voltage transformer 10 below and be connected. Therefore, the insulating devices in the bus air chamber are correspondingly arranged, and the electric field in the bus air chamber is favorably and uniformly distributed.

In the embodiment, an insulated bus 7 is connected below each external bushing 5 and outside the bus air chamber 1, and the external bushing 5 connected to each set of bus bushings 2 is connected with the external bushing 5 connected to the corresponding wooden box bushing 2 through the insulated bus 7.

And a current transformer 8 is sleeved on the insulated bus 7 connected with the external sleeve corresponding to the A-phase bus sleeve and the external sleeve corresponding to the C-phase wooden box sleeve.

And a three-way joint 6 is arranged at the joint of each external bushing 5 and the insulated bus 7. In this way, the conductive parts outside the bus air chamber 1 are all sealed and insulated.

To sum up, the utility model discloses under the condition of having guaranteed the insulation requirement of the higher standard in high altitude area, reduced the whole volume of measurement cabinet, practiced thrift area, electric current and voltage transformer's electrically conductive position all seals with inscription sleeve pipe and insulated bus, and easy access and change, the internal electric field distribution of cabinet is even moreover.

The above, only for the concrete implementation of this utility model, but the scope of protection of this utility model is not limited to this, and any person skilled in this technical field is in the technical scope of this utility model discloses, according to the technical scheme of this utility model and novel design add in equal replacement or change, all should be covered in the scope of protection of this utility model.

Claims

1. The utility model provides a heavy current inflatable measurement cabinet, includes the cabinet body, its characterized in that, the internal generating line air chamber that is equipped with of cabinet, the inside generating line sleeve pipe, main female arranging, main generating line and the voltage transformer of being equipped with of generating line air chamber, the generating line sleeve pipe set up relatively in on the inner wall on generating line air chamber left and right sides upper portion, the space that forms between the generating line sleeve pipe is used for placing voltage transformer, the generating line sleeve pipe passes through main female arranging and main bus connection voltage transformer, the main bus bar of both sides is connected through the outdoor insulating bus of generating line air chamber.

2. A large current inflatable metering cabinet according to claim 1, wherein a pair of voltage transformers are placed in the space formed between the bus sleeves, the voltage transformers are installed in parallel, a pair of wire columns is arranged below each voltage transformer, and the wire columns are provided with internally-connected sleeves.

3. A large current inflatable metering cabinet according to claim 2, wherein external sleeves are arranged on two sides of the bottom of the bus air chamber, the external sleeves are connected with the main bus bar inside the bus air chamber, and the external sleeves are connected with the bus air chamber through the insulating bus bar.

4. The high current gas-filled metering cabinet of claim 3, wherein said busbar bushings comprise two sets, one set comprising A, B, C three phases, said A, B, C three phases being arranged in a straight line.

5. A large current inflatable metering cabinet according to claim 4, wherein the phase A and the phase C are connected with one of the conductor posts below each voltage transformer through a main bus bar and a main bus bar, and the phase B is connected with the rest of the conductor posts of the voltage transformer through the main bus bar, the main bus bar and a branch bus bar.

6. A large current inflatable metering cabinet according to claim 5, wherein a current transformer is sleeved on the insulated bus connected with the A phase and the C phase through the main bus bar and the external bushing.

7. A large current inflatable metering cabinet according to claim 6, wherein a tee joint is provided at the junction of the insulated bus bar and the external bushing.

8. The high-current inflatable metering cabinet according to claim 7, wherein the main busbar comprises a first main busbar and a second main busbar, one end of the first main busbar is connected with the busbar casing, the other end of the first main busbar is connected with the second main busbar, the main busbar is connected to the first main busbar, and the second main busbar is connected with the external casing.