CN204481353U - 10kV integral intelligent phased switch cabinet - Google Patents

Abstract

The utility model discloses a kind of 10kV integral intelligent phased switch cabinet, comprise housing, it is characterized in that, also comprise voltage transformer room that housing inner route clapboard is separated into, control room, breaker chamber, outlet cable room and inlet wire cable vault, described voltage transformer room, breaker chamber, outlet cable room and inlet wire cable vault are equipped with pressure relief device, and current transformer is positioned at outlet cable indoor.The utility model structure is simple, and easy to use, be provided with voltage transformer room, possess the function of integrated cable incoming-outgoing wire, inlet wire cable vault, voltage transformer room, breaker chamber, outlet cable room are equipped with pressure release passage, ensures switch cubicle security of operation.

Description

10kV integrated intelligent phase control switchgear

technical field

The utility model relates to the field of high-voltage complete sets of electrical equipment, in particular to a 10kV integrated intelligent phase control switchgear.

Background technique

10kV intelligent phase-controlled circuit breaker, as a safe, stable and effective measure to solve the transient problems such as switching inrush current and inrush voltage of power capacitors of this level, has gradually emerged in the power system in recent years. As a complete set of 10kV intelligent phase-controlled circuit breaker system, the first point to be considered in the design of the phase-controlled switchgear is to meet the electrical and structural requirements of each core component of the phase-controlled circuit breaker system. The second point is the switchgear It must meet the standard requirements and have the qualities of safety, reliability, and convenience. The third point is that the application of intelligent phase-controlled circuit breakers in 10kV voltage level systems is still immature, and there are various application difficulties, especially in renovation projects. It is difficult to use the original switch cabinets in combination, and the installation space is limited, so it is necessary to have the convenience and flexibility of engineering applications. When some transformation projects cannot use phase-controlled switch cabinets with other functional switch cabinets, phase-controlled switch cabinets are required. The switchgear can be used independently, that is, it has functions such as integrated cable inlet and outlet, and built-in voltage transformer.

Since the operating mechanism of the phase-controlled circuit breaker is three-phase independent phase-separated control, and is a direct drive permanent magnet type, the overall height of the phase-controlled circuit breaker is much higher than that of ordinary circuit breakers, so the space for the switch cabinet circuit breaker room, cable room, etc. All are restricted, and the installation position and method of the grounding switch, transformer, lightning arrester, busbar and other components in the switch cabinet are more difficult than ordinary switch cabinets.

At present, the most used 10kV switchgear in the market is the middle-mounted armored removable switchgear. When designing the shape of the phase-controlled switchgear, it is necessary to consider the versatility of using with this type of switchgear. On the one hand, the overall size should be as small as possible. Proximity to avoid uneven appearance, on the other hand, it is convenient to share components, interconnect cables and share cable trenches.

Contents of the invention

The purpose of this utility model is to solve the above-mentioned deficiencies in the background technology, and to provide a 10kV integrated intelligent phase control switchgear with integrated cable inlet and outlet and self-contained voltage transformer.

The technical scheme of the utility model is: a 10kV integrated intelligent phase control switchgear, including a housing, which is characterized in that it also includes a voltage transformer room, an instrument room, a circuit breaker room, and an outlet The cable room and the incoming cable room, the voltage transformer room, the circuit breaker room, the outgoing cable room and the incoming cable room are all equipped with pressure relief devices, and the current transformer is located in the outgoing cable room.

Preferably, the circuit breaker room and the incoming cable room are respectively located at the front and rear ends of the casing, the voltage transformer room is located above the outgoing cable room, and the voltage transformer room and the outgoing cable room are located between the incoming cable room and the circuit breaker. between chambers.

Preferably, it is characterized in that the pressure relief channel is formed by communicating with the top of the casing by the voltage transformer chamber, the circuit breaker chamber, the outgoing cable chamber and the incoming cable chamber respectively.

Further, the pressure relief channel includes a pressure relief plate fixed on the top of the casing along the transverse direction of the casing, one side of the pressure relief plate is fixed by a metal connector, and the other side is fixed by a plastic connector.

Preferably, a contact box is installed in the voltage mutual sensing room and the outgoing cable room, and the circuit breaker room communicates with the voltage mutual sensing room and the outgoing cable room through the contact box.

Preferably, the instrument chamber is a detachable integral structure located above the front end of the casing.

Further, a stepped surface is provided above the front end of the housing, and the instrument chamber is installed on the stepped surface.

In the utility model, there are 5 mutually independent compartments including a voltage transformer room, a circuit breaker room, an incoming cable room, an outgoing cable room and an instrument room. The lower part of the cabinet enters, and the outgoing cables are led out from the lower part of the switch cabinet. The compartments meet the protection level of IP30. The compartment partitions are made of steel plates, which can effectively prevent the accident from spreading between the compartments. Each compartment has an independent pressure relief channel. The protection level of the shell is IP40, which meets the protection requirements of the switchgear compartment and the shell; the circuit breaker adopts a center-mounted handcart structure, which is convenient for operation and maintenance of the handcart, and through the specially designed circuit breaker stabilization device, the working position of the handcart is relatively ordinary. The circuit breaker is more stable; the incoming cable room, voltage transformer room, circuit breaker room, and outgoing cable room are all equipped with pressure relief channels to ensure the safe operation of the switchgear.

Description of drawings

Fig. 1 is the front view of the utility model

Figure 2 is the left view of Figure 1

Fig. 3 is the left side view of the utility model after installing each component

Figure 4 is a perspective view of the utility model after installing each component

Among them: 1. Voltage transformer room 2. Instrument room 3. Circuit breaker room 4. Outlet cable room 5. Incoming cable room 6. Shell 50. Incoming line room partition 50.1 Upper partition 50.2 Middle partition 50.3 Lower partition Board 10. Voltage transformer chamber partition 30. Circuit breaker chamber partition 11. Voltage transformer chamber pressure relief plate 31. Circuit breaker chamber pressure relief plate 41. Outgoing cable chamber pressure relief plate 51. Incoming cable chamber pressure relief plate 101. Voltage mutual inductance Device 102. Wall bushing 103. Contact box 201. Intelligent control unit 202. Intelligent drive unit 301. Circuit breaker 401. Outlet cable 402. Current transformer 403. Lightning arrester 404. Grounding switch 501. Incoming cable 502. Insulator .

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail.

As shown in Figure 1-2, the integrated intelligent phase-controlled switchgear includes a square casing 6, and the inside of the casing 6 is divided into inlets and The wire and cable chamber 5 and the circuit breaker chamber 3, the partition board 50 of the incoming line chamber and the partition board 30 of the circuit breaker chamber form an intermediate chamber with the upper and lower sides of the casing 6, and the voltage transformer chamber partition 10 with two sides forming an L shape is connected with the casing The top surface of the body 6 and the circuit breaker room partition 30 form a closed voltage transformer room 1, and there is a gap in the horizontal direction between the voltage transformer room partition 10 and the vertical incoming line room partition 50, except for the voltage transformer in the middle room. The space of room 1 is all the outlet cable room 4, that is, the voltage transformer room partition 11 with two sides forming an L shape, the incoming line room partition 50, the circuit breaker room partition 30, and the upper and lower sides of the housing 6 jointly form the outgoing line Cable room4. Since there is a gap in the horizontal direction between the partition plate 11 of the voltage transformer chamber and the vertical incoming line chamber partition plate 50, the outlet cable chamber 4 communicates with the top of the casing 6 to form a pressure relief channel.

The pressure relief passages of the voltage transformer chamber 1, the circuit breaker chamber 3, the outgoing cable chamber 4 and the incoming cable chamber 5 all include pressure relief plates arranged laterally on the top of the housing 6, which are respectively voltage transformer chamber pressure relief plates 11 , Circuit breaker chamber pressure relief plate 31, outlet cable chamber pressure relief plate 41 and incoming cable chamber pressure relief plate 51. The top of the housing 6 is a frame structure, the pressure relief plate 11 of the voltage transformer chamber, the pressure relief plate 31 of the circuit breaker chamber, the pressure relief plate 41 of the outgoing cable chamber and the pressure relief plate 51 of the incoming cable chamber are laid horizontally on the top frame to form the top plate of the casing 6 , voltage transformer chamber pressure relief plate 11, circuit breaker chamber pressure relief plate 31, outgoing cable chamber pressure relief plate 41 and incoming cable chamber pressure relief plate 51 are all pressure relief plates fixed by steel bolts on one side and nylon bolts on the other side, When the indoor pressure increases, push away the side of the nylon bolt to release the pressure, and the side fixed by the steel bolt is connected to the housing 6 at this moment. A stepped surface is provided above the front end of the housing 6, and the instrument chamber 5 is a detachable integral structure, and the instrument chamber 5 is fixed on the stepped surface by bolts.

As shown in Figure 3-4, the main components installed in each room of the 10kV integrated intelligent phase control switchgear include voltage transformer 101, wall bushing 102, contact box 103, bus bar 104, intelligent control unit 201, intelligent Drive unit 202 , permanent magnet phase separation control circuit breaker 301 , outgoing cable 401 , current transformer 402 , lightning arrester 403 , grounding switch 402 , incoming cable 501 , and insulator 502 . Figure 3-4 after installation.

The voltage transformer room 1 is equipped with a voltage transformer 101, a wall bushing 102, a contact box 103 and a busbar 104, and its main function is to serve as an installation space for a voltage transformer and a connection space for a circuit breaker and incoming cables.

The instrument room 2 is a detachable overall structure, which can be made separately from other compartments of the switch cabinet as a whole, and is mainly used as an installation space for the intelligent control unit 201 and the intelligent drive unit 202 .

The circuit breaker room 3 is the installation space of the mid-mounted circuit breaker trolley 301 , and the circuit breaker trolley communicates with the voltage transformer room 1 and the outlet cable room 4 through the contact box 103 .

Outgoing cable room 4 is installed with outgoing cable 401, current transformer 402, lightning arrester 403, grounding switch 404, contact box 103 and bus bar 104, current transformer 402 is hoisted on the top of outgoing cable room 4, and lightning arrester 403 is installed in outgoing cable room 4 In the middle of the rear, the grounding switch 404 is installed in the lower part of the outgoing cable room 4, and the outgoing cable 401 is close to the rear of the outgoing cable room 4. This arrangement greatly saves the installation space and is very suitable for rear maintenance. It is more convenient to install cables and overhaul and maintain;

The incoming cable room 5 is used as a space for the incoming cable 501 to be introduced and connected, and has the advantages of small footprint, convenient cable installation, maintenance, etc. The busbars are connected by lap terminals, and each phase is equipped with an insulator 502 as a fixed support, which can fully meet the dynamic and thermal stability requirements of the switchgear. The partition board 50 of the wire inlet room is connected by three sections of detachable sealing plates. 1, middle partition 50.2 and lower partition 50.3 are approximately corresponding to the heights of voltage transformer chamber 1, current transformer 402, and outgoing cable 401 in the vertical direction, so that they can be disassembled and repaired in the future. Wherein, since the incoming cable 501 is provided with copper bars, for safety insulation, the upper partition 50.1 adopts a composite plate made of a steel plate and an SMC insulation board, and the middle partition 50.2 and the lower partition 50.3 use ordinary steel to meet the requirements. The bus bar of the incoming cable room 5 is connected to the bus bar of the voltage transformer room 1 through the wall bushing 102, and the upper partition 50.1, the middle partition 50.2 and the lower partition 50.3 are connected to the outgoing cable room 5 by segmented detachable sealing. Separated to ensure that the protection level between the compartments is not lower than IP30 requirements, and a pressure relief channel is reserved for the outgoing cable room 5, so that each compartment has an independent pressure relief channel, high temperature and high pressure ionization in the event of an arc fault The gas can be safely released to the rear and upper direction which is less harmful. The upper partition 50.1 adopts a composite plate with a steel plate and an SMC insulation board. The steel plate ensures the structural strength of the partition, and the SMC board serves as reinforced insulation to improve the insulation strength of the cable joint and the busbar to the partition to reduce the probability of discharge accidents. Sectional detachable sealing plate The middle partition 50.2 and the lower partition 50.3 are all steel plate bending structures, and are fixed on the corresponding position of the switch cabinet by bolts. During maintenance, unscrew the bolts to remove the partition to enter the outgoing cables room to operate.

The above is only a specific embodiment of the present utility model. It should be pointed out that any changes or replacements that can be easily imagined by those skilled in the art within the technical scope disclosed in the present utility model should be covered by the present utility model. within the scope of protection.

Claims (7)

1. a 10kV integral intelligent phased switch cabinet, comprise housing (6), it is characterized in that, also comprise voltage transformer room (1) that housing (6) inner route clapboard is separated into, control room (2), breaker chamber (3), outlet cable room (4) and inlet wire cable vault (5), described voltage transformer room (1), breaker chamber (3), outlet cable room (4) and inlet wire cable vault (5) are equipped with pressure release passage, and current transformer (402) is positioned at outlet cable room (4).

2. 10kV integral intelligent phased switch cabinet as claimed in claim 1, it is characterized in that, breaker chamber (3) and inlet wire cable vault (5) lay respectively at housing (6) rear and front end, described voltage transformer room (1) is positioned at top, outlet cable room (4), and described voltage transformer room (1), outlet cable room (4) are positioned between inlet wire cable vault (5) and breaker chamber (3).

3. 10kV integral intelligent phased switch cabinet as claimed in claim 1, it is characterized in that, described pressure release passage to be communicated with housing (6) top by voltage transformer room (1), breaker chamber (3), outlet cable room (4) and inlet wire cable vault (5) and to be formed.

4. 10kV integral intelligent phased switch cabinet as claimed in claim 3, it is characterized in that, described pressure release passage comprises the pressure relief plate being horizontally installed on housing (6) top along housing (6), the horizontal side of described pressure relief plate is fixed by metal connecting piece, and opposite side is fixed by plastic fastening.

5. 10kV integral intelligent phased switch cabinet as claimed in claim 1, it is characterized in that, described mutual induction of voltage room (1), outlet cable room (4) are all provided with contact box (103), and described breaker chamber (3) is communicated with mutual induction of voltage room (1), outlet cable room (4) by contact box (103).

6. 10kV integral intelligent phased switch cabinet as claimed in claim 1, it is characterized in that, described control room (2) are detachable overall structure, are positioned at above housing (6) front end.

7. 10kV integral intelligent phased switch cabinet as claimed in claim 6, it is characterized in that, be provided with step surface above described housing (6) front end, described control room (2) are arranged on step surface.