C-GIS gas tank high-voltage test device

Abstract

The utility model relates to a high-voltage test device for a C-GIS gas tank. The high-voltage test device is characterized by comprising a shielding room, a gas insulation closed power frequency partial discharge test module, a C-GIS insulation bus tool module and a test object switch control module, the power frequency withstand voltage test and the partial discharge test of the C-GIS gas tank high-voltage test device can meet the test requirements of opposite ground, interphase, interpolar, circuit breaker fracture and isolation fracture. In addition, the device can perform combined pressurization, compared with a single pressurization mode, the upper limit of the test voltage can be improved, and the test range is wider; meanwhile, the gas insulation closed type power frequency partial discharge test modules are vertically distributed in the shielding room in parallel, so that the occupied area can be effectively reduced, the overall size can be reduced, a plurality of test objects can be tested at the same time, and the efficiency is greatly improved; the test process can be fully automatically completed according to the flow.

Description

Technical Field

[0001] This utility model relates to the field of medium-voltage electrical equipment technology, and in particular to a high-voltage testing device for a C-GIS gas box. Background Technology

[0002] In order to perform partial discharge testing and power frequency withstand voltage testing on the main circuit of the assembled C-GIS gas box on the automated production line, it is necessary to install a testing device for timely detection to determine whether the assembled product is qualified. Common problems with C-GIS gas box high-voltage testing devices include large space, large volume, inconvenient wiring, and inconvenient switching between test items. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a C-GIS gas box high-pressure test device, which has the problems of large space, large volume, inconvenient wiring, and inconvenient switching between test items.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is: a C-GIS gas box high-voltage test device, the innovation of which is: including a shielded room, a gas-insulated enclosed power frequency partial discharge test module, a C-GIS insulated bus tooling module and a test sample switch control module;

[0005] The gas-insulated enclosed power frequency partial discharge test module includes a test sample module and an end connection module. Two sets of the gas-insulated enclosed power frequency partial discharge test module are installed inside a shielded room and arranged vertically side-by-side. Each gas-insulated enclosed power frequency partial discharge test module is connected to two sets of C-GIS insulated busbar fixture modules. The C-GIS insulated busbar fixture modules are located outside the shielded room, and high voltage is led into the shielded room by the C-GIS insulated busbar fixture modules, which are then connected to the test sample module via the end connection module.

[0006] The end connection module adopts an overhead busbar method and is installed on the inner wall of the top of the shielded room by an insulating support; the test sample module is installed below the end connection module;

[0007] The C-GIS insulated busbar tooling module includes a high-voltage commutator and an insulated busbar. The high-voltage commutator includes an inlet side and an outlet side of the C-GIS insulated busbar, and the inlet and outlet sides of the C-GIS insulated busbar are connected in a three-phase split configuration. Each phase is equipped with an independent test switch control module to achieve independent on / off control of each phase. The insulated busbar is located at the top of the outlet side of the C-GIS insulated busbar and has three-phase output terminals, each of which is connected to an end connection module.

[0008] Furthermore, each phase of the test module connected to the end connection module has an independent automatic switching circuit breaker switch and a three-position isolation grounding switch, and the end connection module has an inlet terminal and an outlet terminal.

[0009] Furthermore, the sample module is controlled by the sample control system, and the sample module can be connected to the CB mechanism and the EDS mechanism via a quick-connect interface.

[0010] Furthermore, the gas-insulated closed-type power frequency partial discharge test module can be pressurized in conjunction with other components to simultaneously pressurize both the incoming and outgoing lines of the test module.

[0011] The advantages of this utility model are:

[0012] 1) The C-GIS gas box high-voltage test device of this utility model can meet the test requirements for power frequency withstand voltage test and partial discharge test, including phase-to-ground, phase-to-phase, inter-electrode, circuit breaker break and isolation break. In addition, the device can perform combined pressurization, which can increase the upper limit of test voltage and the test range compared with single pressurization. At the same time, the gas-insulated enclosed power frequency partial discharge test module is vertically arranged in parallel in the shielded room, which can effectively reduce the floor space and reduce the overall size. It can realize the simultaneous testing of multiple test objects, which greatly improves efficiency. The test process can be completed automatically according to the process flow. Attached Figure Description

[0013] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0014] Figure 1 This is a schematic diagram of a C-GIS air box high-pressure testing device according to the present invention.

[0015] Figure 2 This is a connection diagram of a C-GIS air box high-pressure testing device according to the present invention.

[0016] Figure 3 This is a structural diagram of the high-voltage commutator of a C-GIS gas box high-voltage test device according to this utility model. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0018] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0019] like Figures 1 to 3 The C-GIS gas box high-voltage test device shown includes a shielded room 1, a gas-insulated enclosed power frequency partial discharge test module 2, a C-GIS insulated busbar tooling module 3, and a test sample switch control module.

[0020] The gas-insulated enclosed power frequency partial discharge test module 2 includes a test sample module and an end connection module. Two sets of the gas-insulated enclosed power frequency partial discharge test module 2 are installed inside the shielded room and arranged vertically side-by-side. The gas-insulated enclosed power frequency partial discharge test module 2 is connected to two sets of C-GIS insulated busbar fixture modules 3. The C-GIS insulated busbar fixture modules 3 are located outside the shielded room 1, and high voltage is led into the shielded room by the C-GIS insulated busbar fixture modules 3, which are then connected to the test sample module via the end connection module.

[0021] The end connection module adopts an overhead busbar method and is installed on the inner wall of the top of the shielded room by an insulating support; the test module is installed below the end connection module.

[0022] The C-GIS insulated busbar tooling module 3 includes a high-voltage commutator 31 and an insulated busbar 32. The high-voltage commutator 31 includes an inlet side and an outlet side of the C-GIS insulated busbar, and the inlet side and outlet side of the C-GIS insulated busbar are connected in a three-phase manner. Each phase is equipped with an independent test switch control module to realize independent on / off control of each phase. The insulated busbar 32 is set on the top of the outlet side of the C-GIS insulated busbar, and the insulated busbar 32 has three-phase output terminals, and each of the three-phase output terminals is connected to an end connection module.

[0023] Each phase of the test module connected to the end connection module has an independent automatic switching circuit breaker switch and a three-position isolating grounding switch. The end connection module has an incoming terminal and an outgoing terminal.

[0024] The sample module is controlled by the sample control system, and the sample module can be connected to the CB mechanism and the EDS mechanism via a quick-connect interface.

[0025] The gas-insulated enclosed power frequency partial discharge test module 2 can be pressurized in combination to simultaneously pressurize the incoming and outgoing sides of the test module.

[0026] Table 1 is a schematic diagram of the pressurization points of the sample module in the C-GIS air box high-pressure test device of this utility model.

[0027]

[0028] Table 1

[0029] The working principle of this utility model is as follows: The C-GIS gas box high-voltage test device can perform power frequency withstand voltage tests and partial discharge tests, which can meet the test requirements for phase-to-ground, phase-to-phase, phase-to-pole, circuit breaker breaks, and isolation breaks. In addition, the device can perform combined pressurization, which can increase the upper limit of the test voltage and expand the test range compared with the single pressurization method. At the same time, the gas-insulated enclosed power frequency partial discharge test modules are arranged vertically in parallel in the shielded room, which can effectively reduce the floor space and reduce the overall size. Multiple test samples can be tested simultaneously, which greatly improves efficiency. The test process can be completed fully automatically according to the process flow.

[0030] Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of this utility model as claimed.

Claims

1. A C-GIS gas tank high pressure test device, characterized in that: The shielding room, the gas insulated switchgear (GIS) frequency power partial discharge test module, the C-GIS insulation bus tooling module and the test sample switch control module are included. The gas insulated switchgear (GIS) frequency power partial discharge test module includes a test sample module and a terminal connection module. The terminal connection module is installed on the inner wall of the top end of the shielding room in an overhead busbar manner. The C-GIS insulation bus tooling module includes a high-voltage commutator and an insulation bus.

2. The C-GIS gas tank high pressure test device according to claim 1, characterized in that: The high-voltage commutator includes a C-GIS insulation bus incoming line side and a C-GIS insulation bus outgoing line side.

3. The C-GIS gas tank high pressure test device according to claim 1, characterized in that: The insulation bus is arranged on the top end of the C-GIS insulation bus outgoing line side.

4. The C-GIS gas tank high pressure test device according to claim 1, characterized in that: The test sample module on the terminal connection module has an independent automatic switching circuit breaker switch and a three-position isolation grounding switch for each phase. The test sample module is controlled by a test sample control system. The test sample module can be connected to the CB mechanism and the EDS mechanism through a quick plug interface. The gas insulated switchgear (GIS) frequency power partial discharge test module can be pressurized simultaneously to pressurize the incoming line side and the outgoing line side of the test sample module.

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