CN217768257U

CN217768257U - Changeable phase sequence switchgear arrangement structure

Info

Publication number: CN217768257U
Application number: CN202122635634.2U
Authority: CN
Inventors: 周健; 乔爔; 王涛; 吴小虎; 陶兴铭; 钟雪莲; 杨杰
Original assignee: Chuan Kai Electric Co ltd
Current assignee: Chuan Kai Electric Co ltd
Priority date: 2021-10-29
Filing date: 2021-10-29
Publication date: 2022-11-08
Anticipated expiration: 2031-10-29

Abstract

The utility model discloses a changeable phase sequence switchgear arrangement structure relates to gas-insulated metal enclosed switchgear technical field, the utility model discloses a 3 phase sequence business turn over line sleeve pipes, 3 phase sequence wall bushing and with phase sequence wall bushing's isolator, 3 phase sequence business turn over line sleeve pipes pass A looks, B looks and C looks respectively, and 3 phase sequence business turn over line sleeve pipes set up side by side, and the incoming line sets up in the upper end, and every phase sequence business turn over line sleeve pipe below all is connected with electrically conductive piece, the electrically conductive piece other end is equipped with seals admittedly, it is equipped with electrically conductive piece two to seal the connection of utmost point post top admittedly, electrically conductive piece two and phase sequence wall bushing, electrically conductive piece two and the detachable connection of phase sequence wall bushing, isolator becomes 90 with the circuit breaker, and isolator and the central solid utmost point post center of sealing in the same plane in the middle of locating, the utility model has the advantages of being simple in structure, can be fast convenient change the switching phase sequence as required.

Description

Changeable phase sequence switchgear arrangement structure

Technical Field

The utility model relates to a gas-insulated metal enclosed switchgear technical field, more specifically relate to a changeable phase sequence switchgear arrangement structure.

Background

With the development of the power grid industry, the gas insulated metal enclosed switchgear (referred to as an air-filled cabinet for short) has increasingly large requirements and wider application in the fields of power supply systems, wind power and the like. Under normal conditions, the phase sequence of the switch equipment is A phase, B phase and C phase from left to right in sequence, and the A phase, the B phase and the C phase are from inside to outside. However, under the condition that the arrangement position and the incoming line position of the field transformer are changed in multiple ways, the phases of the switch equipment are required to be C, B and A from left to right when the switch equipment is incoming.

Therefore, in order to solve the above problems, an arrangement structure of a phase-changeable switching device is designed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an: in order to solve the problem that the phase sequence of current switchgear can't be changed, the utility model designs an interchangeable phase sequence switchgear arrangement structure.

The utility model discloses a realize above-mentioned purpose and specifically adopt following technical scheme: the utility model provides a changeable phase sequence switchgear arrangement structure, includes 3 looks preface business turn over line sleeve pipes, 3 looks preface wall bushing and with looks preface wall bushing's isolator, 3 looks preface business turn over line sleeve pipes pass A looks, B looks and C looks respectively, and 3 looks preface business turn over line sleeve pipes set up side by side, and the inlet wire sets up in the upper end, and every looks preface business turn over line sleeve pipe below all is connected with electrically conductive piece, the electrically conductive piece other end is equipped with seals utmost point post admittedly, seal utmost point post top admittedly and connect and be equipped with electrically conductive piece two, electrically conductive piece two and looks preface wall bushing are connected, electrically conductive piece two and looks preface wall bushing detachable the being connected, isolator becomes 90 with the circuit breaker, and isolator and the center of locating middle solid seal utmost point post is in the coplanar.

Further, the conductive piece and the conductive piece are both made of copper.

Further, the wire inlet and outlet sleeve is a conical sleeve with a large upper part and a small lower part.

Furthermore, the conductive piece is connected with the phase sequence wire inlet and outlet sleeve and the solid-sealed polar pole through the bolt, and the conductive piece II is connected with the solid-sealed polar pole and the phase sequence wall bushing through the bolt, so that the conversion is convenient and stable, and the situations that the circuit is unstable due to incomplete fixation and the like are avoided.

The working principle is as follows: firstly, a circuit breaker A phase solid-sealed polar pole is connected to a three-station isolating switch A phase wall bushing through a copper bar, and a circuit breaker C phase solid-sealed polar pole is connected to a three-station isolating switch C phase wall bushing through a copper bar. At the moment, the phase sequence of the incoming and outgoing line sleeve is sequentially an A phase, a B phase and a C phase from left to right, when the phase is required to be changed, the original circuit breaker A phase solid-sealed polar pole is connected to the three-station isolating switch C phase wall bushing through a copper bar, the original circuit breaker C phase solid-sealed polar pole is connected to the three-station isolating switch A phase wall bushing through a copper bar, and then the phase sequence changing treatment can be completed.

The utility model has the advantages as follows:

1. the utility model discloses simple structure, can be fast convenient change the switch phase sequence order as required, need not develop a cabinet type again, reduced the degree of difficulty of equipment design and production, also be favorable to the standardization of product simultaneously.

2. The utility model discloses a bolt fastening for when convenient fixed, can stably fix, avoid because the connection problem leads to the short circuit scheduling problem of circuit.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic side view of the present invention;

fig. 3 is a schematic structural view of the present invention viewed from below;

fig. 4 is a schematic structural diagram after phase change of the present invention;

reference numerals are as follows: 1-phase sequence in-out wire sleeve, 2-phase sequence wall bushing, 3-isolating switch, 4-conductive piece, 5-solid sealed pole and 6-conductive piece II.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "up", and the like indicate the directions or positional relationships based on the directions or positional relationships shown in the drawings, or the directions or positional relationships that the products of the present invention are conventionally placed when used, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the term refers must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention.

Example 1

As shown in fig. 1 to 3, a changeable phase sequence switch equipment arrangement structure includes 3 phase sequence in-out

bushings

1, 3 phase sequence wall bushing 2 and a disconnecting switch 3 connected with the phase sequence wall bushing 2, where the 3 phase sequence in-out bushings 1 respectively pass through phase a, phase B and phase C, the 3 phase sequence in-out bushings are arranged side by side, wire inlets are arranged at upper ends, a conductive piece 4 is arranged below each phase sequence in-out bushing 1, a solid sealed pole 5 is arranged at the other end of the conductive piece 4, a conductive piece 4 is connected above the solid sealed pole 5, the conductive piece 4 is connected with the phase sequence wall bushing, the conductive piece 4 is detachably connected with the phase sequence wall bushing 2, the disconnecting switch 3 is 90 ° to a circuit breaker, the center of the disconnecting switch 3 and the solid sealed pole 5 arranged in the middle is in the same plane, the conductive pieces 4 and the conductive piece 4 are both made of copper, the in-out bushings are tapered bushings with large upper ends and small ends, the conductive piece 4 is connected with the phase sequence wall bushing 1 and the solid sealed pole 5 through bolts, and the solid sealed pole 5 are connected with the phase sequence wall bushing 2.

The working principle is as follows: firstly, the circuit breaker A-phase solid-sealed polar pole 5 is connected to the three-station isolating switch 3A-phase wall bushing through a copper bar, and the circuit breaker C-phase solid-sealed polar pole 5 is connected to the three-station isolating switch 3C-phase wall bushing through a copper bar. At the moment, the phase sequence of the incoming and outgoing line bushing is sequentially an A phase, a B phase and a C phase from left to right, when phase change is needed, the original circuit breaker A phase solid-sealed polar pole 5 is connected to the three-station isolating switch 3C phase wall bushing through a copper bar, the original circuit breaker C phase solid-sealed polar pole 5 is connected to the three-station isolating switch 3A phase wall bushing through a copper bar, and then phase sequence change processing can be completed.

Claims

1. An interchangeable phase sequence switchgear arrangement comprising 3 phase sequence in and out bushings (1), 3 phase sequence wall bushings (2) and a disconnector (3) connected to the phase sequence wall bushings (2), the 3 phase sequence in and out bushings (1) passing through phase a, phase B and phase C, respectively, characterized in that: 3 looks preface business turn over line sleeve pipe (1) sets up side by side, and the incoming line sets up in the upper end, and every looks preface business turn over line sleeve pipe (1) below all is connected with electrically conductive piece (4), electrically conductive piece (4) other end is equipped with admittedly and seals utmost point post (5), it is equipped with electrically conductive piece two (6) to seal the connection of utmost point post (5) top admittedly, electrically conductive piece two (6) are worn wall sleeve pipe (2) with the preface and are connected, electrically conductive piece two (6) wear wall sleeve pipe (2) detachable the connection with the preface, isolator (3) become 90 with the circuit breaker, and isolator (3) and locate middle solid utmost point post (5) center of sealing in the coplanar.

2. A switchable phase sequence switchgear arrangement according to claim 1, characterized in that: the conductive piece (4) and the conductive piece (6) are both made of copper.

3. A switchable phase sequence switchgear arrangement according to claim 1, characterized in that: the phase sequence wire inlet and outlet sleeve (1) is a conical sleeve with a large upper part and a small lower part.

4. A switchable phase sequence switchgear arrangement according to claim 1, characterized in that: and the conductive piece (4) is connected with the phase sequence wire inlet and outlet sleeve (1) and the solid-sealed polar pole (5) through bolts.

5. A switchable phase sequence switchgear arrangement according to claim 1, characterized in that: and the second conductive piece (6) is connected with the solid-sealed polar pole (5) and the phase sequence wall bushing (2) through bolts.