CN202957512U

CN202957512U - Measuring cabinet of solid insulating annular network

Info

Publication number: CN202957512U
Application number: CN 201220648996
Authority: CN
Inventors: 刘桂华; 陈福红; 李水胜; 侯峰; 周振业
Original assignee: Beihai Galaxy Switch Devices Co Ltd
Current assignee: Beihai Galaxy Switch Devices Co Ltd
Priority date: 2012-11-30
Filing date: 2012-11-30
Publication date: 2013-05-29
Anticipated expiration: 2022-11-30

Abstract

The utility model discloses a measuring cabinet of a solid insulating annular network. The measuring cabinet comprises a cabinet body, wherein three phases of primary lines which are respectively formed by voltage transformers, current transformers and main busbar connection members are arranged in the cabinet body. Solid insulating layers are wrapped outside the voltage transformers, the current transformers and the main busbar connection members except for connection ports. Semi-conducting material layers are arranged on the surfaces of the solid insulating layers, the voltage transformers are installed above the current transformers, the main busbar connection members are installed under the current transformers, and semicircular pressure-equalizing casings are arranged in the voltage transformers. The parts are connected through conical plugs and jacks, insulating and elastic sealing pads are arranged on the portions near to the inner portions of contact surfaces at two ends of each connection portion at intervals, and the semi-conducting material layers on the surfaces of the parts are connected with the cabinet body in conducting mode through bolts and inserts. Compared with the prior art, the measuring cabinet of the solid insulating annular network solves the problem that the existing measuring cabinet of the solid insulating annular network is large in size, low in insulating performance and the like.

Description

Solid insulation looped network metering cabinet

Technical field

The utility model relates to high voltage electric power equip ment manufacturing technology field, particularly a kind ofly measures the metering cabinet that electric energy is used.

Background technology

Commonly used in existing looped network metering cabinet the isolating switch of a kind of air type looped network metering cabinet in cabinet and the link of primary line are arranged is to take air as dielectric, and earthed switch wherein, isolation switch contact are the cutter head formula, the alternate air insulation of utilizing.Owing to adopting air to carry out isolated insulation, alternate and relatively between all requires enough isolation distances, the one side insulation property are not high, can cause on the other hand cabinet overall dimension large, cause overall volume larger.

Summary of the invention

The purpose of this utility model is to provide a kind of solid insulation looped network metering cabinet that solves the not high and larger problem of volume of existing looped network metering cabinet insulation property.

In order to address the above problem, the technical scheme of this solid insulation looped network metering cabinet is: this solid insulation looped network metering cabinet, include cabinet, be provided with three-phase respectively by voltage transformer in described cabinet, the circuit that current transformer and main bus bar connector connect into etc.Described voltage transformer, the outside of described current transformer and described main bus bar connector all is coated with solid insulating layer except connectivity port, be provided with the semiconductive material layer on described solid insulating layer surface, described voltage transformer is contained in the top of described current transformer, and described main bus bar connector is contained in described current transformer below; Inlet wire interface at described voltage transformer is provided with grading shield.

In technique scheme, technical scheme can be more specifically: described voltage transformer, and described current transformer, the connection between described main bus bar connector is all to be connected with jack by cone-shaped plug; Contact-making surface between the described solid insulating layer at each two ends, junction is bonded to each other near the part of outer surface, make described semiconductive material layer between two connectors also realize that conduction connects, at described contact-making surface, between inner part, be separated with the insulation elastic sealing gasket.

Further: pass through bolt, cone pad and inserts are by voltage transformer, the described semiconductive material layer on described current transformer and described main bus bar connector surface is communicated with, and be connected with described cabinet, the resistance value R that described semiconductive material layer is the every cm distance of outer surface is: the nonwoven fabric from filaments of 500 ohm≤R≤10000 ohm.

Owing to adopting technique scheme, the utility model compared with prior art has following beneficial effect:

1, the utlity model has volume little, good heat dissipation, safety and environmental protection.

2, the utility model good insulation preformance, convenient for installation and maintenance, and adaptive capacity to environment is strong.

The accompanying drawing explanation

Fig. 1 is main schematic diagram of the present utility model.

Fig. 2 is the partial enlarged drawing at A place in Fig. 1.

Fig. 3 is the partial enlarged drawing at B place in Fig. 1.

Embodiment

Below in conjunction with accompanying drawing, the utility model is described in further detail:

Solid insulation looped network metering cabinet shown in Fig. 1, Fig. 2 and Fig. 3 includes cabinet 1, divide and be separated with hyperbaric chamber 1.3 and secondary component chamber etc. in cabinet 1, in hyperbaric chamber, 1.3 are provided with three-phase respectively by voltage transformer 2, the circuit that current transformer 4 and main bus bar connector 6 connect into.Voltage transformer 2, the outside of current transformer 4 and main bus bar connector 6 all is coated with the solid insulating layer of epoxy resin except connectivity port, is provided with the semiconductive material layer that silicon rubber adds carbon dust on the solid insulating layer surface.Voltage transformer 2 is contained in the top of current transformer 4, and main bus bar connector 6 is contained in current transformer 4 belows; Be provided with semicircular grading shield 10 in voltage transformer 2.

Voltage transformer 2, the connection between current transformer 4 and main bus bar connector 6 is all to be connected with jack by cone-shaped plug; Contact-making surface between the solid insulating layer at each two ends, junction is bonded to each other near the part of outer surface, makes two semiconductive material layers between connector also realize that conduction connects, and at contact-making surface, between inner part, is separated with insulation elastic sealing gasket 5.By hexagon socket head cap screw 7, cone pad 8 and inserts 9 are by voltage transformer 2, and the semiconductive material layer on current transformer 4 and main bus bar connector 6 surfaces is communicated with, and is connected with cabinet 1, and cabinet 1 must safety ground.

Claims

1. a solid insulation looped network metering cabinet, include cabinet (1), be provided with three-phase respectively by voltage transformer (2) in described cabinet (1), the circuit that current transformer (4) and main bus bar connector (6) connect into, it is characterized in that: described voltage transformer (2), the outside of described current transformer (4) and described main bus bar connector (6) all is coated with solid insulating layer except connectivity port, be provided with the semiconductive material layer on described solid insulating layer surface, described voltage transformer (2) is contained in the top of described current transformer (4), described main bus bar connector (6) is contained in described current transformer (4) below, inlet wire interface at described voltage transformer (2) is provided with grading shield (10).

2. solid insulation looped network metering cabinet according to claim 1 is characterized in that: described voltage transformer (2), and described current transformer (4), the connection between described main bus bar connector (6) is all to be connected with jack by cone-shaped plug; Contact-making surface between the described solid insulating layer at each two ends, junction is bonded to each other near the part of outer surface, make described semiconductive material layer between two connectors also realize that conduction connects, at described contact-making surface, between inner part, be separated with insulation elastic sealing gasket (5).

3. solid insulation looped network metering cabinet according to claim 1 and 2, it is characterized in that: by bolt (7), cone pad (8) and inserts (9) are by described voltage transformer (2), the described semiconductive material layer on described current transformer (4) and described main bus bar connector (6) surface is communicated with, and is connected with described cabinet (1).