CN204760754U - Last oil circuit breaker mounting structure of 10KV transmission line - Google Patents

Abstract

The utility model provides a last oil circuit breaker mounting structure of 10KV transmission line, belongs to electricity generation, transformer or distribution technical field. Last oil circuit breaker mounting structure of 10KV transmission line is by single genshui mud pole brace oil circuit breaker and isolator, be equipped with special cross arm of oil circuit breaker and the special cross arm of isolator on the cement electric pole, special cross arm of oil circuit breaker and the special cross arm of isolator are two side cross arm structures, and they are fixed on the cement electric pole, oil circuit breaker installs on the special cross arm of oil circuit breaker, isolator installs on the special cross arm of isolator. Last oil circuit breaker mounting structure of 10KV transmission line, not only be convenient for oil circuit breaker and isolator's installation, reduced the consumption of soil area occupied and raw and other materials again, gained made easy's effect.

Description

A 10KV transmission line oil circuit breaker installation structure

technical field

The utility model relates to an installation structure of an oil circuit breaker for a 10KV transmission line, which belongs to the technical field of power generation, transformation or distribution.

Background technique

High-voltage circuit breakers are the most important control and protection equipment in power plants, substations and power systems. Its main functions are manifested in two aspects: one is the control function. According to the needs of power system operation, some or all electrical equipment , and part or all of the lines are put into operation or out of operation; the second is the protection function. When a fault occurs in a certain part of the power system, it cooperates with the protection device and the automatic device to quickly remove the faulty part from the system and reduce the scope of power outages. Prevent the expansion of accidents, protect all kinds of electrical equipment in the system from damage, and ensure the safe operation of the fault-free part of the system. High-voltage circuit breakers can be divided into oil circuit breakers, air circuit breakers, vacuum circuit breakers, sulfur hexafluoride circuit breakers, solid gas circuit breakers, and magnetic blow circuit breakers according to the arc extinguishing medium, among which the oil circuit breaker adopts a sealed structure , Since the disconnection of the circuit cannot be clearly observed, the oil circuit breaker is generally equipped with an isolating switch.

As shown in Figure 1, the current oil circuit breaker 1 and isolating switch 2 installed on the 10KV transmission line generally use two cement poles 3 support structures, which not only occupy a large area of land, but also have the disadvantage of large consumption of raw materials .

Utility model content

The purpose of this utility model is to provide a 10KV transmission line oil circuit breaker installation structure which not only facilitates the installation of oil circuit breakers and isolating switches, but also reduces the occupied land area and raw material consumption against the disadvantages of the prior art.

The purpose of this utility model is achieved through the following technical solutions:

A 10KV transmission line oil circuit breaker installation structure, the oil circuit breaker and the isolation switch are supported by a single cement pole; the concrete pole is provided with a special cross arm for the oil circuit breaker and a special cross arm for the isolation switch; The special cross arm for the circuit breaker and the special cross arm for the isolating switch are double-sided cross arm structures, and they are fixed on the cement pole; the oil circuit breaker is installed on the special cross arm for the oil circuit breaker; the isolating switch is installed on the isolating switch Special cross arm.

The installation structure of the above-mentioned 10KV transmission line oil circuit breaker, the special cross arm for oil circuit breaker includes a cross arm body, a vertical brace and a diagonal brace; The other end is fixedly connected with the diagonal brace; the diagonal brace is located below the cross-arm body and fixed on the cement pole through a bolt assembly; the vertical brace includes two symmetrically arranged parts, both of which are installed on the cross-arm body.

For the installation structure of the above-mentioned 10KV transmission line oil circuit breaker, the cross-arm body, longitudinal braces and diagonal braces of the special cross-arm for the oil circuit breaker are preferably angle iron or channel steel structures.

In the installation structure of the oil circuit breaker on the 10KV transmission line, the special cross arm for the isolating switch is located above the special cross arm for the oil circuit breaker, arranged vertically with the special cross arm for the oil circuit breaker, and fixed on the cement pole through the bolt assembly. Three groups of isolating switches connecting the oil circuit breaker and the transmission line are installed on the special cross arm of the isolating switch on one side.

In the installation structure of the above-mentioned 10KV transmission line oil circuit breaker, the special cross arm for the isolating switch includes a set of cross braces and connecting plates symmetrically arranged. The cross braces are preferably angle iron or channel steel structures. A connection plate is provided at the installation position.

The installation structure of the oil circuit breaker on the 10KV transmission line described in the utility model adopts the special cross arm for the oil circuit breaker and the special cross arm for the isolating switch to install the oil circuit breaker and the isolating switch, and realizes that the oil circuit breaker and the oil circuit breaker are supported by a single cement pole. The function of the isolating switch not only facilitates the installation of the oil circuit breaker and the isolating switch, but also reduces the land occupation area and the consumption of raw materials, achieving a multiplier effect with half the effort.

Description of drawings

Figure 1 is a schematic diagram of the oil circuit breaker and isolating switch installed on the current 10KV transmission line;

Fig. 2 is a schematic diagram of the installation structure of the 10KV transmission line oil circuit breaker described in the utility model;

Figure 3 is a top view of the special cross arm for the disconnector;

Fig. 4 is a schematic structural diagram of the special cross arm for oil circuit breakers;

FIG. 5 is a top view of FIG. 4 .

The list of labels in the figure is: 1. Oil circuit breaker, 2. Isolating switch, 3. Cement pole, 4. Special cross arm for oil circuit breaker, 4-1, Cross arm body, 4-2, Diagonal brace, 4- 3. Vertical support, 5. Special cross arm for isolating switch, 5-1. Cross support, 5-2. Connecting plate, 6. Bolt assembly.

Detailed ways

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

Referring to Fig. 2, Fig. 3, Fig. 4 and Fig. 5, the installation structure of the oil circuit breaker on the 10KV transmission line described in the utility model is supported by a single cement pole 3 for the oil circuit breaker 1 and the isolating switch 2; 3 is provided with a special cross arm 4 for oil circuit breaker and a special cross arm 5 for isolating switch; the special cross arm 4 for oil circuit breaker and the special cross arm 5 for isolating switch are double-sided cross arm structures, and they are fixed on the cement pole 3 above; the oil circuit breaker 1 is installed on the special cross arm 4 for oil circuit breaker; the isolating switch 2 is installed on the special cross arm 5 for the isolating switch.

Referring to Fig. 2, Fig. 4 and Fig. 5, in the installation structure of the oil circuit breaker on the 10KV transmission line of the utility model, the special cross arm 4 for the oil circuit breaker includes a cross arm body 4-1, a vertical support 4-3 and Diagonal brace 4-2; the cross-arm body 4-1 is arranged horizontally, one end of which is fixed on the cement pole 3 through a bolt assembly 6, and the other end is fixedly connected with the diagonal brace 4-2; the diagonal brace 4-2 is located The lower part of the cross-arm body 4-1 is fixed on the cement pole 3 through the bolt assembly 6; the longitudinal brace 4-3 includes two parts symmetrically arranged, both of which are installed on the top of the cross-arm body 4-1 for stabilizing The installation of the oil circuit breaker 1; the cross-arm body 4-1, the longitudinal brace and the diagonal brace 4-2 are preferably angle iron or channel steel structures.

Referring to Fig. 2 and Fig. 3, in the installation structure of the oil circuit breaker on the 10KV transmission line of the present utility model, the special cross arm 5 for the isolating switch is located above the special cross arm 4 for the oil circuit breaker, and is connected with the special cross arm 4 for the oil circuit breaker. 4 Arranged vertically, fixed on the cement pole 3 by bolt assembly 6, and three groups of isolating switches 2 connecting the oil circuit breaker and the transmission line are installed on the cross arm 5 dedicated to the isolating switch on each side.

Referring to Fig. 3, in the installation structure of the oil circuit breaker for 10KV transmission line of the present invention, the special cross arm 5 for the isolating switch includes a group of symmetrically arranged cross braces 5-1 and connecting plates 5-2. The brace 5-1 is preferably an angle iron or channel steel structure, and a connecting plate 5-2 is provided at both ends of the cross brace 5-1 and the installation position of the disconnector.

Referring to Fig. 1 to Fig. 5, the installation structure of the oil circuit breaker on the 10KV transmission line described in the utility model adopts the special cross arm 4 for the oil circuit breaker and the special cross arm 5 for the isolating switch to install the oil circuit breaker 1 and the isolating switch 2, realizing the The functions of the oil circuit breaker 1 and the isolating switch 2 supported by a single cement pole 3 not only facilitate the installation of the oil circuit breaker 1 and the isolating switch 2, but also reduce the land occupation area and the consumption of raw materials, and achieve twice the result with half the effort.

Claims (5)

1. 10KV transmission line oils a structure for mounting circuit breaker, and it is characterized in that, described 10KV transmission line oils structure for mounting circuit breaker by single cement electric pole (3) supporting oil circuit breaker (1) and isolating switch (2); Described cement electric pole (3) is provided with the special cross-arm of oil circuit breaker (4) and the special cross-arm of isolating switch (5); The special cross-arm of described oil circuit breaker (4) and the special cross-arm of isolating switch (5) are bilateral cross-arm structure, and they are fixed on cement electric pole (3); Described oil circuit breaker (1) is arranged on the special cross-arm of oil circuit breaker (4); Described isolating switch (2) is arranged on the special cross-arm of isolating switch (5).

2. 10KV transmission line according to claim 1 oils structure for mounting circuit breaker, it is characterized in that, the special cross-arm of described oil circuit breaker (4) comprises cross-arm body (4-1), vertical support (4-3) and diagonal brace (4-2); Described cross-arm body (4-1) horizontal arrangement, its one end is fixed on cement electric pole (3) by bolt assembly (6), and the other end is fixedly connected with diagonal brace (4-2); Described diagonal brace (4-2) is positioned at the below of cross-arm body (4-1), is fixed on cement electric pole (3) by bolt assembly (6); Described vertical support (4-3) comprises the two parts be arranged symmetrically with, and is installed in above cross-arm body (4-1).

3. 10KV transmission line according to claim 2 oils structure for mounting circuit breaker, and it is characterized in that, cross-arm body (4-1) and the diagonal brace (4-2) of the special cross-arm of described oil circuit breaker (4) adopt angle bar or channel-section steel structure.

4. the 10KV transmission line according to claim 1 or 2 or 3 oils structure for mounting circuit breaker, it is characterized in that, the special cross-arm of described isolating switch (5) is positioned at the top of the special cross-arm of oil circuit breaker (4), be arranged vertically with the special cross-arm of oil circuit breaker (4), be fixed on cement electric pole (3) by bolt assembly (6), the upper three groups of isolating switches (2) of installing connection oil circuit breaker and transmission line of the special cross-arm of every side isolating switch (5).

5. 10KV transmission line according to claim 4 oils structure for mounting circuit breaker, it is characterized in that, the special cross-arm of described isolating switch (5) comprises the one group of stull (5-1) and connecting plate (5-2) that are arranged symmetrically with, described stull (5-1) is angle bar or channel-section steel structure, is provided with connecting plate (5-2) at stull (5-1) two ends and isolating switch installed position.