CN205081387U - Prefabricated cabin formula transformer substation of word formula of arranging - Google Patents

Abstract

The utility model discloses a line-arranged prefabricated cabin type substation, which includes a box body, main transformer side equipment, line side equipment and circuit breakers, wherein the main transformer side equipment includes a main cable tank connected together and a main three Station switch, line side equipment includes side cable tank, current transformer, voltage transformer, lightning arrester and two side three-position switches connected together, circuit breaker includes tank body, moving contact, static contact and transmission mechanism , the upper part of the tank is provided with two outlets, the two outlets are set back, the static contact and the moving contact are arranged in the tank, the static contact is located above the moving contact, and the transmission mechanism is connected with the moving contact , There is a special-shaped conductor connected between the static contact and the outlet end, and the minimum insulation distance between two adjacent special-shaped conductors is greater than 50mm; the main transformer side equipment, line side equipment and circuit breakers are arranged in a straight line. Realize reducing the volume of the prefabricated cabin type substation arranged in line and facilitating transportation.

Description

Line-arranged prefabricated cabin type substation

technical field

The utility model relates to the field of substations, in particular to a line-arranged prefabricated cabin type substation.

Background technique

At present, high-voltage switchgear is widely used in high-voltage power supply systems. When the power supply line or equipment fails, it is necessary to ground the faulty circuit through high-voltage switchgear in order to eliminate the danger caused by the faulty system. The existing high-voltage switchgear is mainly divided into: gas-insulated metal totally enclosed switchgear (GIS) and conventional open switchgear (AIS). With the wide application of prefabricated cabin-type substations, the requirements for the size of GIS equipment installed in the box of prefabricated cabin-type substations are getting higher and higher. In the prior art, GIS equipment usually includes main transformer side equipment and line side equipment. The equipment and line-side equipment are connected through a circuit breaker. The main transformer-side equipment usually includes components such as the main cable tank and the main three-position switch, while the line-side equipment includes side cable tanks, current transformers, voltage transformers, lightning arresters and two Two side three-position switches connected together, and the two outlets of the circuit breaker are usually arranged up and down or at 90 degrees, which makes the overall floor space of the GIS equipment larger, so it is necessary to increase the box body of the prefabricated cabin type substation. Therefore, the overall volume of the prefabricated cabin type substation is large and inconvenient for transportation. How to design a prefabricated cabin type substation with small volume and convenient transportation is the technical problem to be solved by the utility model.

Contents of the invention

The technical problem to be solved by the utility model is: to provide a line-arranged prefabricated cabin-type substation, which can reduce the volume of the line-arranged prefabricated cabin-type substation and facilitate transportation.

The technical solution provided by the utility model is an in-line prefabricated cabin type substation, including a box body, main transformer side equipment, line side equipment and circuit breaker, wherein the main transformer side equipment includes connected The main cable tank and the main three-position switch, the line side equipment includes a side cable tank, a current transformer, a voltage transformer, a surge arrester and two side three-position switches connected together, the side cable tank and the The current transformer is connected to one of the side three-position switches, the voltage transformer and the arrester are connected to the other side three-position switch, and the circuit breaker includes a tank body, a moving contact, The static contact and the transmission mechanism, the upper part of the tank body is provided with two outlet ends, and the two outlet ends are arranged facing away from each other, the static contact and the moving contact are arranged in the tank body, so The static contact is located above the movable contact, the transmission mechanism is connected to the movable contact, a special-shaped conductor is connected between the static contact and the outlet end, and the minimum distance between two adjacent special-shaped conductors is The insulation distance is greater than 50mm; the main transformer side equipment, the line side equipment and the circuit breaker are arranged in a straight line, one of the outlet terminals is connected to the voltage transformer, and the other outlet terminal is connected to the voltage transformer. The main three-position switch connection.

Further, the inside of the box is divided into an inspection corridor and an equipment installation room, and the main transformer side equipment, the line side equipment and the circuit breaker are located in the equipment installation room.

Further, the cross-section of the shaped conductor is an elliptical structure with a lateral dimension smaller than a longitudinal dimension.

Further, the shaped conductor bends and extends around the outer periphery of the fixed contact.

Compared with the prior art, the advantages and positive effects of this utility model are: the line-arranged prefabricated cabin type substation provided by the utility model connects the two terminals above the tank by setting special-shaped conductors on the static contacts of the circuit breaker. The special-shaped conductors can be bent and extended according to the needs, and the insulation distance between two adjacent special-shaped conductors can meet the insulation requirements, so that the main transformer side equipment and line side equipment can be arranged in a line on both sides of the circuit breaker. The volume of the in-line prefabricated cabin type substation is reduced and the transportation is convenient.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the appended drawings in the following description The drawings are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings on the premise of not paying creative labor.

Fig. 1 is a top view of an embodiment of a line-arranged prefabricated cabin type substation of the present invention;

Fig. 2 is a front view of an embodiment of a line-arranged prefabricated cabin type substation of the present invention;

Fig. 3 is a structural schematic diagram of the circuit breaker in the embodiment of the in-line arrangement prefabricated cabin type substation of the present invention.

detailed description

In order to make the purpose, technical solutions and advantages of the embodiments of the utility model more clear, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the utility model. Obviously, the described The embodiments are some embodiments of the present utility model, but not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

As shown in Fig. 1-Fig. 2, the line-arranged prefabricated cabin type substation of this embodiment includes a box body 1, main transformer side equipment 2, line side equipment 3 and circuit breaker 4, wherein the main transformer side equipment 2 includes the main cable tank 21 and the main three-position switch 22 connected together, and the line side equipment 3 includes a side cable tank 31, a current transformer 32, a voltage transformer 33, a lightning arrester 34 and two side Three-position switch 35, the side cable tank 31 and the current transformer 32 are connected to one of the side three-position switches 35, and the voltage transformer 33 and the arrester 34 are connected to the other. On the side three-position switch 35, the circuit breaker 4 includes a tank body 41, a moving contact 42, a static contact 43 and a transmission mechanism 44. Two outlet terminals 410 are arranged on the upper part of the tank body 41, and two The outlet end 410 is set back, the static contact 43 and the moving contact 42 are set in the tank body 41, the static contact 43 is located above the moving contact 42, and the transmission mechanism 44 is connected to the moving contact 42, and a special-shaped conductor 431 is connected between the static contact 43 and the outlet terminal 410, and the minimum insulation distance between two adjacent special-shaped conductors 431 is greater than 50mm; the main transformer side equipment 2. The line-side equipment 3 and the circuit breaker 4 are arranged in a line, one of the outlet terminals 410 is connected to the voltage transformer 33, and the other outlet terminal 410 is connected to the main three-way Bit switch 22 is connected.

Specifically, the circuit breaker 4 in the line-arranged prefabricated cabin-type substation in this embodiment is provided with two outlet terminals 410 disposed on the top of the tank body 41, and the static contact 43 is connected to the corresponding side through the special-shaped conductor 431. connected to the outlet terminal 410 of the circuit breaker 4, so that the main transformer side equipment 2 and the line side equipment 3 are connected on both sides of the tank body 41 of the circuit breaker 4, so that the main transformer side equipment 2, the line side equipment 3 and the circuit breaker 4 are in the box body 1 Arranged in a straight line, thereby effectively reducing the space occupied by the main transformer side equipment 2, the line side equipment 3 and the circuit breaker 4, and reducing the overall volume of the box body 1. Wherein, during actual use, the transmission mechanism 44 will drive the movable contact 42 to move to achieve contact or separation with the static contact 43, and the specific structural form of the transmission mechanism 44 is not limited. The minimum insulation distance between two adjacent special-shaped conductors 431 is greater than 50 mm to meet the internal insulation requirements of the combined electrical appliance. At the same time, the special-shaped conductors 431 bend and extend around the outer circumference of the static contact 43 to form a special-shaped structure to meet the internal wiring requirements. . Preferably, the cross-section of the special-shaped conductor 431 is an elliptical structure whose lateral dimension is smaller than the longitudinal dimension. By increasing the longitudinal dimension of the special-shaped conductor 431 and reducing its transverse dimension, the special-shaped conductor can be further enlarged while satisfying sufficient flow capacity. The internal insulation distance between 431. In addition, in order to facilitate maintenance, the interior of the box body 1 is divided into a maintenance corridor 12 and an equipment installation room 11 , and the main transformer side equipment 2 , the line side equipment 3 and the circuit breaker 4 are located in the equipment installation room 11 .

In this embodiment, the line-arranged prefabricated cabin-type substation is arranged on the static contact of the circuit breaker to connect the two outlet ends above the tank. The special-shaped conductor can be bent and extended as required, and two adjacent special-shaped The insulation distance of the conductor meets the insulation requirements, so that the main transformer side equipment and the line side equipment can be arranged in a line on both sides of the circuit breaker, which reduces the volume of the line-arranged prefabricated cabin type substation and facilitates transportation.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present utility model, and are not intended to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit of the technical solutions of the various embodiments of the present invention. and range.

Claims (4)

1. A line-arranged prefabricated cabin-type substation, including a box body, main transformer side equipment, line side equipment and circuit breakers, wherein the main transformer side equipment includes main cable tanks and main three-workers connected together The line side equipment includes a side cable tank, a current transformer, a voltage transformer, a surge arrester and two side three-position switches connected together, and the side cable tank and the current transformer are connected to one of them. On the side three-position switch, the voltage transformer and the lightning arrester are connected to the other side three-position switch, characterized in that the circuit breaker includes a tank body, a moving contact, and a static contact and a transmission mechanism, the upper part of the tank body is provided with two outlet ends, and the two outlet ends are arranged facing away from each other, the static contact and the moving contact are arranged in the tank body, and the static contact The head is located above the moving contact, the transmission mechanism is connected to the moving contact, a special-shaped conductor is connected between the static contact and the outlet end, and the minimum insulation distance between two adjacent special-shaped conductors is greater than 50mm; the main transformer side equipment, the line side equipment and the circuit breaker are arranged in a line, one of the outlet terminals is connected to the voltage transformer, and the other outlet terminal is connected to the main Three-position switch connection. 2. The in-line prefabricated cabin-type substation according to claim 1, characterized in that, the box is divided into a maintenance corridor and an equipment installation room, the main transformer side equipment, the line side equipment and all The circuit breaker is located in the equipment installation room. 3. The in-line prefabricated cabin-type substation according to claim 1, wherein the cross-section of the special-shaped conductor is an elliptical structure with a lateral dimension smaller than a longitudinal dimension. 4. The in-line prefabricated cabin-type substation according to claim 1, wherein the special-shaped conductor bends and extends around the outer circumference of the static contact.