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CN-224217905-U - Single-bus sectional prefabricated cabin type GIS combined electrical apparatus

CN224217905UCN 224217905 UCN224217905 UCN 224217905UCN-224217905-U

Abstract

The utility model relates to the technical field of power systems, in particular to a single bus segmented prefabricated cabin type GIS combined electrical appliance. The prefabricated cabin is internally provided with GIS combined electrical appliances, each GIS combined electrical appliance is provided with two rows, each row is provided with two groups of total combined electrical appliances and a plurality of control cabinets, each group of total combined electrical appliances are symmetrically arranged and correspond to each other in position, the upper end of each support piece is provided with a three-station isolation grounding switch I, the upper end of each three-station isolation grounding switch I is connected with an outgoing line sleeve tee through a transposition conductor, the outlet of each outgoing line sleeve tee is connected with an outgoing line sleeve, one end of each three-station isolation grounding switch I is connected with a current transformer, the current transformer is connected with an interface at the upper end of one side of a circuit breaker, the interface at the lower end of the other side of the circuit breaker is connected with a three-station isolation grounding switch II, and one side of each three-station isolation grounding switch II is provided with a transposition conductor. Compared with the prior art, the arrangement size of the GIS combined electrical apparatus is reduced, the equipment cost is reduced, the workload of the site is reduced, the transportation is convenient, and the prefabricated cabin bodies with different sizes are more easily adapted.

Inventors

  • MA LI
  • DENG CHAO

Assignees

  • 上海西电高压开关有限公司

Dates

Publication Date
20260508
Application Date
20250416

Claims (5)

  1. 1. A single bus segment prefabricated cabin type GIS combined electrical apparatus comprises a prefabricated cabin body and is characterized in that GIS combined electrical apparatuses are arranged in the prefabricated cabin body (1), each GIS combined electrical apparatus is provided with two rows, each row is provided with two groups of total combined electrical apparatuses and a plurality of control cabinets (2), each group of total combined electrical apparatuses are symmetrically arranged and correspond to each other in position, each total combined electrical apparatus comprises a supporting piece (3), supporting feet (4), a three-station isolating grounding switch I (5), a three-station isolating grounding switch II (6), an outgoing sleeve tee (7), an outgoing sleeve (8), a current transformer (9) and a circuit breaker (10), the upper end of the supporting piece (3) is provided with a three-station isolating grounding switch I (5), the upper end of the three-station isolating grounding switch I (5) is connected with the outgoing sleeve tee (7) through a transposition conductor, the outlet of the outgoing sleeve tee (7) is connected with the outgoing sleeve (8), one end of the three-station isolating grounding switch I (5) is connected with the current transformer (9), the current transformer (9) is connected with an interface at one side upper end of the circuit breaker (10), the lower end of the three-station isolating switch II is connected with the three-station isolating switch II (6) and the three-station isolating switch II is connected with the three-station isolating switch II (6), the three-station isolating grounding switch II (6) of the second group of the total combined electrical appliances is provided with supporting feet (4), the three-station isolating grounding switch II (6) of the first group of the total combined electrical appliances is respectively connected with a bus bar equipment interval (12) through a transposition conductor, one side of the bus bar equipment interval (12) is provided with a grounding switch (13), the upper end of the bus bar equipment interval (12) is inversely provided with a VT voltage transformer (14), the three-station isolating grounding switch II (6) of the second group of the total combined electrical appliances is connected with a three-station isolating grounding switch III (15) through the transposition conductor, the other end of the three-station isolating grounding switch III (15) is connected with a current transformer, the upper end of the current transformer is connected with an interface of the lower end of one side of a circuit breaker II (16), the other end of the circuit breaker II (16) is connected with a three-station isolating grounding switch IV (20), the other end of the three-station isolating grounding switch IV (20) is connected with a female three-way connector (21) through the transposition conductor, the female-way connector (21) is connected with the three-station isolating grounding switch II (6) of the other group of the total combined electrical appliances through the transposition conductor, and the circuit breaker II (16) and the three-station isolating grounding switch III-type three-phase-connector Z-type combined electrical appliances are arranged between the first group of the total combined electrical appliances and the three-station isolating electrical appliances through the transposition conductor.
  2. 2. The single bus segmented prefabricated cabin type GIS combined electrical appliance of claim 1, wherein a DXN series live display is arranged on a three-station isolation grounding switch I (5) of each group of total combined electrical appliances.
  3. 3. The single-bus segmented prefabricated cabin type GIS combined electrical apparatus according to claim 1, wherein a grounding switch II (22) is arranged at the lower end of a three-station isolation grounding switch I (5) of the first two groups of total combined electrical apparatuses.
  4. 4. The single-bus segmented prefabricated cabin type GIS combined electrical apparatus of claim 1, wherein a quick grounding switch (18) is arranged at the lower end of a three-station isolation grounding switch I (5) of the second row of two groups of total combined electrical apparatuses, a detachable conductor (17) is arranged at the other end of the three-station isolation grounding switch I (5), and a PT voltage transformer (19) is arranged at the lower end of the detachable conductor (17).
  5. 5. The single-bus segmented prefabricated cabin type GIS combined electrical appliance according to claim 1 is characterized in that a lightning arrester (11) is arranged on the outer side of the outgoing line sleeve (8).

Description

Single-bus sectional prefabricated cabin type GIS combined electrical apparatus Technical Field The utility model relates to the technical field of power systems, in particular to a single bus segmented prefabricated cabin type GIS combined electrical appliance. Background A gas-insulated metal-enclosed switchgear (hereinafter abbreviated as GIS) is one of the important power transmission and transformation devices for a power grid, and the safety and reliability of the gas-insulated metal-enclosed switchgear are critical to the safe operation of the power grid. The urban construction which is developed day by day in China is particularly prominent in the miniaturized design of power transmission and transformation equipment. Particularly on a prefabricated cabin type GIS combined electrical appliance. The GIS combined electrical apparatus comprises a control cabinet, a circuit breaker, a current transformer, a voltage transformer, a lightning arrester, an isolating switch, a grounding switch, an overhaul grounding switch and the like. The prefabricated cabin type GIS combined electrical apparatus has the advantages of small occupied area, convenient installation, environmental protection, no need of the independent construction of GIS rooms of extreme outdoor equipment (extremely low temperature, large sand wind, high altitude and the like) by users, small field workload and the like, and is favored by the vast users. The traditional single-bus sectioning GIS combined electrical appliance has larger bus occupation position due to the inclusion of buses and sectioning intervals. Because the prefabricated cabin is limited by the superelevation, the superwide and the like of the transport vehicle, how to install the GIS combined electrical apparatus in the prefabricated cabin is a problem to be solved. Disclosure of utility model In order to solve the problems in the prior art, the single-bus segmented prefabricated cabin GIS combined electrical apparatus comprises a prefabricated cabin body, wherein GIS combined electrical apparatuses are arranged in the prefabricated cabin body, each GIS combined electrical apparatus is provided with two rows, each row is provided with two groups of total combined electrical apparatuses and a plurality of control cabinets, each group of total combined electrical apparatuses are symmetrically arranged and correspond to each other in position, each total combined electrical apparatus comprises a supporting piece, supporting feet, a first three-position isolating earthing switch, a second three-position isolating earthing switch, a third-position outlet sleeve tee joint, an outlet sleeve, a current transformer and a circuit breaker, the upper end of the supporting piece is provided with the first three-position isolating earthing switch, the upper end of the first three-position isolating earthing switch is connected with the outlet sleeve tee joint through a transposition conductor, one end of the first three-position isolating earthing switch is connected with the current transformer, the interface of one side upper end of the current transformer is connected with the interface of the other side upper end of the three-position isolating earthing switch, one side of the second three-position isolating earthing switch is provided with a transposition conductor, the second three-position isolating earthing switch and the transposition conductor are arranged in an L-shaped isolating switch, the second three-position isolating earthing switch and the transposition conductor are respectively arranged at one side of the three-position isolating switch is connected with the three-position isolating switch, the other end of the three-position isolating switch is connected with the three-position isolating switch, and the other end of the three-position isolating switch is connected with the three-position isolating device through the interface, the upper end of the other side of the circuit breaker II is connected with a three-station isolation grounding switch IV, the other end of the three-station isolation grounding switch IV is connected with a female connection tee joint through a transposition conductor, the female connection tee joint is connected with a three-station isolation grounding switch II of another group of total combined electrical appliances through the transposition conductor, the circuit breaker of the total combined electrical appliances, the circuit breaker II and the female connection tee joint are arranged in a Z shape, and the three-station isolation grounding switches II of the first row and the second row of total combined electrical appliances are connected through the transposition conductor. And a DXN series electrified display is arranged on the three-station isolation grounding switch I of each group of total combined electrical appliances. And a second grounding switch is arranged at the lower end of the three-station isolation grounding switch of th