CN205670647U - A kind of KYN 40.5kV Intelligent high voltage switch cabinet - Google Patents

Abstract

The utility model discloses a kind of KYN 40.5kV Intelligent high voltage switch cabinet, in cabinet, be provided with control room, breaker chamber, bus-bar room and cable vault；Being provided with chopper in breaker chamber, chopper uses handcart console model structure；Bus-bar room sidewall is provided with wall bushing, is additionally provided with the upper contact head box being connected with chopper input；Cable vault is provided with earthed switch, lower contact box, cable fixture and supports insulative that current transformer, spark gap are connected with chopper outfan；Breaker chamber, bus-bar room, top, cable vault are provided with pressure release valve；It is provided with angular transducer and temperature sensor on chopper, branch's busbar is provided with temperature sensor.This utility model not only has the advantages such as simple in construction, installation and repairing is convenient, interchangeability is good, combination is flexible, and there is on-line monitoring breaker mechanic property, circuit breaker contact arm temperature and bus temperature, prevent the function of switch cubicle contact terminal temperature rise and breaker mechanical fault.

Description

A KYN-40.5kV intelligent high-voltage switchgear

technical field

The utility model relates to a switchgear, in particular to a KYN-40.5kV intelligent high-voltage switchgear.

Background technique

Smart appliances are the basis for building a smart grid, and a smart grid based on smart appliances can use energy more scientifically. Smart electrical appliances are more reliable and safer than traditional electrical appliances. Smart electrical appliances can monitor every key part of themselves in real time and send working status in real time to realize online monitoring and fault diagnosis of electrical equipment.

The switch cabinet has functions such as overhead incoming and outgoing lines, cable incoming and outgoing lines, and bus connection. It is mainly applicable to various places such as power plants, substations, petrochemicals, metallurgical steel rolling, light industry and textiles, factories and mines, residential quarters, and high-rise buildings. The existing high-voltage switchgear structure mainly includes: busbar room, circuit breaker room and cable room. The cable room is relatively compact and cannot be connected to multiple cables, which limits the application range of the high-voltage switchgear. Moreover, due to the structural problems of the existing high-voltage switchgear, the volume is large, the installation and maintenance are inconvenient, the service life is short, and there are potential safety hazards.

Therefore, the inventor made further research on this, and developed a kind of KYN-40.5kV intelligent high-voltage switchgear, and this case arises from it.

Utility model content

The technical problem to be solved by the utility model is to provide a KYN-40.5kV intelligent high-voltage switchgear, which not only has the advantages of simple structure, convenient installation and maintenance, good interchangeability, flexible combination, etc. The temperature of the contact arm of the switch and the temperature of the busbar are used to prevent the temperature rise of the contact point of the switchgear and the mechanical failure of the circuit breaker.

For solving the problems of the technologies described above, the technical solution of the utility model is:

A KYN-40.5kV intelligent high-voltage switchgear, the upper front side of the cabinet is equipped with an instrument room, the lower front side is equipped with a circuit breaker room, the upper middle part is equipped with a busbar room for installing main busbars and branch busbars, and the rear part is There is a cable room, and each compartment is separated by a partition and has an independent pressure relief channel; a circuit breaker is installed in the circuit breaker room, and the circuit breaker adopts a floor-standing structure of a handcart; the busbar room The side wall is provided with a wall bushing, and an upper contact box connected to the input end of the circuit breaker; the cable room is provided with a grounding switch, a current transformer, a lightning arrester, and a lower contact connected to the output end of the circuit breaker Boxes, cable fixing devices and supporting insulators; the top of the circuit breaker room, busbar room and cable room are all equipped with pressure release valves;

The circuit breaker is equipped with an angle sensor and a temperature sensor, the angle sensor is installed on the main shaft of the circuit breaker, the temperature sensor is installed on the upper contact arm and the lower contact arm of the circuit breaker, and the branch busbar of the bus room is equipped with a temperature sensor.

Further, the pressure release valve is a pressure release plate.

After adopting the above scheme, the utility model has the advantages of simple structure, convenient installation and maintenance, good interchangeability and flexible combination. It also has the function of on-line monitoring the mechanical characteristics of the circuit breaker, the temperature of the contact arm of the circuit breaker and the temperature of the busbar, and prevents the temperature rise of the contact point of the switchgear and the mechanical failure of the circuit breaker.

Description of drawings

Fig. 1 is a side view of the KYN-40.5kV intelligent high-voltage switch cabinet of the present utility model;

Fig. 2 is the second side view of the KYN-40.5kV intelligent high-voltage switchgear of the utility model;

Fig. 3 is the front view of the KYN-40.5kV intelligent high-voltage switchgear of the present utility model;

Fig. 4 is a schematic diagram of the KYN-40.5kV intelligent high-voltage switchgear handcart floor-standing circuit breaker of the utility model.

Label description

Instrument room 1 Circuit breaker room 2 Pressure relief channel A Bus room 3 Wall bushing 31

Cable room 4 Pressure relief channel B Circuit breaker 5 Handcart 6 Earthing switch 7

Current transformer 8 Lightning arrester 9 Lower contact box 10 Cable fixing device 11

Support insulator 12 Pressure relief valve 13 Small busbar compartment 14 Metal valve 15

Upper contact box 16 Observation window 17 Static contact box 18 Branch busbar 19

Temperature sensor 20 Main shaft 21 Angle sensor 22 Upper contact arm 23

The lower contact arm 24 is a temperature sensor 25 .

detailed description

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail. What the utility model discloses is a KYN-40.5kV intelligent high-voltage switch cabinet, as shown in Figure 1, which is a preferred embodiment of the utility model. The assembled cabinet body is provided with front and rear cabinet doors, and the cabinet body is 1400mm wide, 2600mm high and 2600mm deep. There is an instrument room 1 on the upper front side of the cabinet, a circuit breaker room 2 on the lower front side, a busbar room 3 on the upper middle part, and a cable room 4 on the rear.

As shown in Figure 2, each compartment is separated by a partition and has an independent pressure relief channel, namely: circuit breaker chamber 2 pressure relief passage A, cable chamber 4 pressure relief passage B, in order to enhance the high pressure Safety performance of switchgear.

A circuit breaker 5 is installed in the circuit breaker room 2, and the circuit breaker 5 adopts a floor-standing structure with a handcart 6; The head box 16 is connected to the input end of the circuit breaker 5 .

The cable chamber 4 is provided with a grounding switch 7, a current transformer 8, a lightning arrester 9, a lower contact box 10, a cable fixing device 11, a supporting insulator 12, etc., and the lower contact box 10 is connected to the output end of the circuit breaker 5; The tops of the circuit breaker chamber 2, the busbar chamber 3 and the cable chamber 4 are all provided with pressure release valves 13. The current transformer 8 can be installed on the bottom of the cable room 4 or on the rear beam of the cabinet.

As shown in FIG. 4 , the circuit breaker 5 is provided with an angle sensor 22 and a temperature sensor 25 , and the angle sensor 22 is installed on the main shaft 21 of the circuit breaker 5 for monitoring the mechanical characteristic parameters of the circuit breaker 5 . The temperature sensor 25 is installed on the upper contact arm 23 and the lower contact arm 24 of the circuit breaker 5 for monitoring the temperature of the contact point of the upper contact arm 23 and the lower contact arm 24 .

The upper contact box 16 (including the static contact box 18 ) connected to the input end of the circuit breaker 5 is arranged in the busbar room 3 , and the main busbar is fixed by the branch busbar and the static contact box 18 . The main bus passes through the partition of the switch cabinet through the bus bushing 31 and is connected with another switch cabinet. The branch busbar 19 of the busbar room 3 is provided with a temperature sensor 20 for monitoring the temperature at the junction of the main busbar and the branch busbar 19 .

Secondary equipment such as instruments and relay protection components can be installed in the instrument room 1 . Further, a small bus bar room 14 is provided on the top of the instrument room 1 , and a small bus bar terminal is arranged in the small bus bar room 14 .

Further, the circuit breaker chamber 2 is equipped with a guide rail matched with the handcart 6 for the circuit breaker 5 and the handcart 6 to slide inside. The handcart 6 can move between the test position and the working position. The circuit breaker chamber 2 is also provided with a metal valve 15 and a secondary plug (not shown in the figure). The metal valve 15 is installed on the back wall of the circuit breaker chamber 2. When the handcart 6 moves from the test position to the working position, the metal valve 15 is automatically opened, and the handcart 6 is automatically closed when it moves in the opposite direction. As shown in FIG. 3 , the position and working state of the circuit breaker 5 can be observed through the observation window 17 of the cabinet door.

Further, the cable chamber 4 is provided with a U-shaped mounting bracket for installing the current transformer 8, an L-shaped mounting bracket for installing the lightning arrester 9, and the cable fixing device 11 is a slit detachable cable clamp to facilitate the installation of the cable. Install.

In this embodiment, the pressure release valve 13 above the circuit breaker chamber 2, the busbar chamber 3 and the cable chamber 4 is a pressure release plate. When each compartment breaks down and the internal air pressure rises, the pressure release valve 13 on the top will automatically open to release the pressure in the compartment to ensure the safety of the operator.

The interlocking device to prevent misoperation includes: when the circuit breaker 5 is opened, the handcart 6 can move from the test position to the working position; the circuit breaker 5 can only be operated after the handcart 6 is fully in place; It cannot be moved from the test position to the working position; the grounding switch 7 can only be operated when the handcart 6 is in the test position.

The KYN-40.5kV intelligent high-voltage switchgear of the utility model has the advantages of traditional electrical equipment: the cabinet body is made of aluminum-zinc coated plates or high-quality cold-rolled steel plates connected by high-strength bolts and nuts and rivet nuts, the cabinet structure is compact, and the cable room is installed Large space, high protection level, independent pressure release channel, and perfect "five-proof system", suitable for 35kV three-phase AC 50Hz power system, as power distribution room of power plants, substations and industrial and mining enterprises It is used for receiving and distributing electric energy, and has the functions of controlling, protecting and monitoring circuits, and has a wide range of applications.

The above are only preferred embodiments of the present utility model, and are not intended to limit the technical scope of the present utility model. Therefore, any changes or modifications made according to the claims of the utility model and the specification should belong to the utility model. Within the scope covered by the utility model patent.

Claims (2)

1. a KYN-40.5kV Intelligent high voltage switch cabinet, in cabinet, forward upper is provided with control room, and lower front is provided with open circuit Device room, is provided with the bus-bar room for installing main busbar and branch's busbar on the upside of middle part, rear portion is provided with cable vault, quilt between each compartment Dividing plate is separated and is provided with independent pressure release passage；Being provided with chopper in described breaker chamber, chopper uses handcart to fall Ground formula structure；It is characterized in that: described bus-bar room sidewall is provided with wall bushing, be additionally provided be connected with chopper input upper touch Head cartridge；Described cable vault is provided with earthed switch, lower contact box that current transformer, spark gap are connected with chopper outfan, Cable fixture and supports insulative；Described breaker chamber, bus-bar room, top, cable vault are provided with pressure release valve； Being provided with angular transducer and temperature sensor on chopper, angular transducer is arranged on the main shaft of chopper, temperature sensing Device is arranged on upper contact arm and the lower contact arm of chopper, and branch's busbar of bus-bar room is provided with temperature sensor.

A kind of KYN-40.5kV Intelligent high voltage switch cabinet the most according to claim 1, it is characterised in that: described pressure discharges Valve is pressure releasing plate.