Compact type ring network filed cabinet

Abstract

The utility model discloses a compact type ring network filed cabinet which is divided into three compartments, namely a mechanism installation compartment, a switch air chamber and a cable compartment. According to the utility model, the mechanism installation compartment and the cable compartment are respectively distributed at the front and back positions of the switch air chamber, so that the height of the whole switch cabinet is reduced, the switch cabinet is convenient to use indoors and outdoors with limited height and in emergency power supply vehicle use scenes, and the use flexibility is improved; the high-voltage live display on the mechanism installation compartment is used for displaying high-voltage live, and the cable compartment is interlocked and locked through the isolation mechanism in the switch air chamber when the high-voltage live is carried out, so that personnel are prevented from entering the live compartment by mistake, the injury to the personnel caused by cable compartment faults due to misoperation can be avoided, and the use safety is improved.

Description

Technical Field

[0001] This utility model relates to the field of ring main unit technology, specifically a compact ring main unit. Background Technology

[0002] A ring main unit is an electrical device consisting of a set of high-voltage switchgear installed in a steel plate metal cabinet or assembled into a modular ring main power supply unit. Its core components are load switches and fuses. It has advantages such as simple structure, small size, low price, improved power supply parameters and performance, and enhanced power supply safety.

[0003] Currently, Chinese patent application number CN201120428675.8 discloses a ring main unit, including a cabinet and a partition disposed in the middle of the cabinet's internal cavity, the partition dividing the cabinet's internal cavity into a busbar compartment and a cable compartment. The ring main unit also includes an insulated isolation box located in the cable compartment, the isolation box being able to house the upper contacts of a circuit breaker.

[0004] However, existing ring main units typically integrate multiple compartment mechanisms into a single cabinet, and are mostly installed in a longitudinal arrangement, making them inconvenient for use in indoor and outdoor environments with height restrictions, as well as in emergency power supply vehicle scenarios, resulting in poor flexibility. Utility Model Content

[0005] The purpose of this utility model is to provide a compact ring network cabinet to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a compact ring network cabinet, the structure of which is divided into three compartments, namely a mechanism installation compartment, a switch air compartment and a cable compartment. The mechanism installation compartment and the cable compartment are respectively distributed in front of and behind the switch air compartment. The cable compartment is a high-voltage compartment, and the high-voltage live display on the mechanism installation compartment shows that the high voltage is live. When the high voltage is live, the cable compartment is interlocked and locked by the isolation mechanism in the switch air compartment.

[0007] Preferably, a side extension connecting sleeve is provided above the front side of the switch chamber, and the isolation mechanism is installed in the lower middle part of the switch chamber.

[0008] Preferably, a circuit breaker mechanism is provided above the isolation mechanism, and a circuit breaker switch is provided on the front side of the circuit breaker mechanism.

[0009] Preferably, the right side of the installation compartment of the mechanism is provided with, from top to bottom, a density relay, an ammeter, a microcomputer protection device, a button indicator light, a remote-to-local transfer switch, a short-circuit and grounding fault indicator, and an indoor electromagnetic lock. A protective pressure plate is provided on the right side of the remote-to-local transfer switch.

[0010] Preferably, the high-voltage live indicator is located inside the short-circuit and ground fault indicator and the indoor electromagnetic lock.

[0011] Preferably, an outgoing cable sleeve is provided on the upper right side inside the cable compartment, and a current transformer is provided on the left side of the outgoing cable sleeve.

[0012] Preferably, there are three outgoing cable sleeves, and the three outgoing cable sleeves are arranged in a straight line.

[0013] Preferably, L-shaped brackets are installed on both the left and right sides of the top of the switch chamber.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This utility model consists of three compartments: a mechanism installation compartment, a switch chamber, and a cable compartment. The mechanism installation compartment and the cable compartment are located at the front and rear of the switch chamber, respectively, thereby reducing the overall height of the switch cabinet. This facilitates its use in indoor and outdoor environments with height restrictions, as well as in emergency power supply vehicle scenarios, and improves the flexibility of use. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is the right view of the present invention;

[0018] Figure 3 This is a schematic diagram of the internal structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the right side of the switch chamber of this utility model;

[0020] Figure 5 This is a schematic diagram of the internal structure of the cable compartment of this utility model.

[0021] In the diagram: Installation compartment-1, switch chamber-2, cable compartment-3, high-voltage live indicator-11, density relay-12, ammeter-13, microprocessor protection device-14, push button indicator-15, remote-to-local transfer switch-16, short circuit and ground fault indicator-17, indoor electromagnetic lock-18, protection pressure plate-19, isolation mechanism-21, side extension connection sleeve-22, circuit breaker mechanism-23, circuit breaker switch-24, outgoing cable sleeve-31, current transformer-32. Detailed Implementation

[0022] To further explain the technical solution of this utility model, a detailed description is provided below through specific embodiments.

[0023] Please see Figure 1-5This utility model provides a compact ring main unit, which is divided into three compartments: a mechanism installation compartment 1, a switch chamber 2, and a cable compartment 3. The mechanism installation compartment 1 and the cable compartment 3 are located at the front and rear positions of the switch chamber 2, respectively, thereby reducing the overall height of the switch cabinet. This facilitates its use in indoor and outdoor environments with height restrictions, as well as in emergency power supply vehicles, and improves the flexibility of use. The cable compartment 3 is a high-voltage compartment, and the high-voltage live indicator 11 on the mechanism installation compartment 1 displays that the cable compartment is energized. When the cable compartment is energized, the isolation mechanism 21 in the switch chamber 2 interlocks and locks the cable compartment 3 to prevent personnel from accidentally entering the energized compartment and to avoid injury to personnel caused by operation errors leading to malfunctions in the cable compartment 3, thus improving the safety of use.

[0024] The switch chamber 2 has a side extension connecting sleeve 22 on the upper front side, an isolation mechanism 21 installed in the lower middle side inside the switch chamber 2, a circuit breaker mechanism 23 above the isolation mechanism 21, a circuit breaker switch 24 in front of the circuit breaker mechanism 23, and L-shaped brackets installed on the left and right sides of the top of the switch chamber 2. The design can be fixed and installed through the two L-shaped brackets on the top side.

[0025] In the mechanism installation compartment 1, from top to bottom, a density relay 12, an ammeter 13, a microcomputer protection device 14, a button indicator 15, a remote-to-local transfer switch 16, a short-circuit and ground fault indicator 17, and an indoor electromagnetic lock 18 are arranged sequentially. A protective pressure plate 19 is arranged to the right of the remote-to-local transfer switch 16. A high-voltage live indicator 11 is located inside the short-circuit and ground fault indicator 17 and the indoor electromagnetic lock 18. Inside the cable compartment 3, a cable sleeve 31 is arranged on the upper right side, and a current transformer 32 is arranged on the left side of the cable sleeve 31. There are three cable sleeves 31, and the three cable sleeves 31 are arranged in a straight line so that the current transformer 32 can detect the current of the cable passing through the cable sleeve 31.

[0026] This utility model discloses a compact ring main unit. The mechanism installation compartment 1, the switch chamber 2, and the cable compartment 3 are arranged in a front, middle, and rear configuration, respectively. The switch chamber 2 is placed between the mechanism installation compartment 1 and the cable compartment 3, reducing the overall height of the switch cabinet. This design can be used for indoor and outdoor applications with height restrictions, as well as for emergency power supply vehicles. The switch chamber 2 can be mounted and used via an L-shaped bracket. During use, the current of the cable passing through the outgoing cable sleeve 31 is detected by a current transformer 32. The high-voltage live indicator 11 on the mechanism installation compartment 1 displays the high voltage. When the high voltage is live, the cable compartment 3 is interlocked and locked by the isolation mechanism 21 in the switch chamber 2 to prevent personnel from accidentally entering the live compartment and to avoid injury to personnel caused by operation errors leading to cable compartment 3 failure, thus improving the safety of use.

[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A compact ring network cabinet, characterized in that: Its structure is divided into three compartments, namely the mechanism installation compartment (1), the switch air compartment (2) and the cable compartment (3). The mechanism installation compartment (1) and the cable compartment (3) are respectively located in front of and behind the switch air compartment (2). The cable compartment (3) is a high-voltage compartment. The high-voltage live display (11) on the mechanism installation compartment (1) displays the high voltage liveness. When the high voltage is live, the cable compartment (3) is interlocked and locked by the isolation mechanism (21) in the switch air compartment (2).

2. The compact ring network cabinet according to claim 1, characterized in that: A side extension connecting sleeve (22) is provided on the upper front side of the switch air chamber (2), and the isolation mechanism (21) is installed on the lower middle side inside the switch air chamber (2).

3. The compact ring network cabinet according to claim 1, characterized in that: A circuit breaker mechanism (23) is provided above the isolation mechanism (21), and a circuit breaker switch (24) is provided on the front side of the circuit breaker mechanism (23).

4. The compact ring network cabinet according to claim 1, characterized in that: The right side of the installation compartment (1) of the mechanism is provided with a density relay (12), an ammeter (13), a microcomputer protection device (14), a button indicator (15), a remote-to-local switch (16), a short-circuit and ground fault indicator (17), and an indoor electromagnetic lock (18) from top to bottom. A protective pressure plate (19) is provided on the right side of the remote-to-local switch (16).

5. A compact ring network cabinet according to claim 4, characterized in that: The high-voltage live indicator (11) is located inside the short circuit and ground fault indicator (17) and the indoor electromagnetic lock (18).

6. The compact ring network cabinet according to claim 1, characterized in that: The cable compartment (3) is provided with an outgoing cable sleeve (31) on the upper right side, and a current transformer (32) is provided on the left side of the outgoing cable sleeve (31).

7. A compact ring network cabinet according to claim 6, characterized in that: There are three outgoing cable sleeves (31), and the three outgoing cable sleeves (31) are arranged in a straight line.

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