CN205377156U - Outdoor intelligent looped netowrk cabinet of environment -friendly - Google Patents

Abstract

The utility model discloses an outdoor intelligent looped netowrk cabinet of environment -friendly, the intelligent cabinet temperature adjusting device comprises a cabinet body, the cabinet body on be equipped with panel and pressure relief device, the panel on be provided with area point display, the load switch who has the drop -out current, pressure indicator, load switch handle hole, earthing switch handle hole, ampere meter and fault indicator, internal earthing switch, earthing switch operating device and the fuse room of being provided with of cabinet, cabinet body bottom be provided with cable connection room, grounding bus bar and business turn over line insulation support, the cable connection indoor location have voltage transformer or current transformer, cabinet body middle part be equipped with branch, closing operation button. The utility model discloses a gas or solid insulation vacuum arc -extinguishing technique, the insulating ability improves, and the arc extinguishing effect is obvious. Safety, the intellectuality is higher. Device simple structure, it is small, the low price, simple to operate can be in the on -the -spot installation in any place.

Description

An environment-friendly outdoor intelligent ring network cabinet

technical field

The utility model relates to the field of electric equipment switch cabinets, in particular to an environment-friendly outdoor intelligent ring network cabinet.

Background technique

The ring network cabinet is currently widely used in medium voltage transmission and distribution equipment. Due to its small size and simple installation and maintenance, it has become the primary product for promotion. At present, there are examples of domestic and foreign production in the ring network cabinet. Air-insulated or nitrogen-insulated ring main unit. The air-insulated ring network cabinet is a kind of fully enclosed isolation of the three-position isolating switch, vacuum tube, busbar and other main circuits in the ring network cabinet with dry air under normal pressure in the sealed box to ensure that the inside of the sealed box is not affected by moisture. The impact of air and dust pollution, improve the insulation of the air as the insulating medium of the ring network cabinet.

The ring network cabinet in which the air is an insulating medium includes a vacuum tube, an insulating three-position isolating switch operating connecting rod, a vacuum tube driving insulating connecting rod, an insulating device, a three-position isolating switch and an operating mechanism, and a sealing device fixedly installed in the casing In the box body, vacuum tubes and busbars are fixedly installed through fixed blocks in the sealed box body, and an insulating device is fixed on the box plate of the sealed box body. The inner end of the insulating device is connected to the bottom end of the busbar, and the top end of the busbar is connected to the The bottom end is connected, the top of the vacuum tube is connected to the bottom end of the vacuum tube transmission insulating connecting rod, and the top end of the vacuum tube driving insulating connecting rod is connected to the operating mechanism; the three-position isolating switch is installed in a sealed box, and the three-position isolating switch passes through the insulating three-way The position is connected with the operating mechanism; the three-position isolating switch is installed in the sealed box, and the three-position isolating switch is connected with the operating mechanism through the insulating three-position isolating switch operating connecting rod. Since the main components of the air-insulated ring main unit are in a sealed box in a sealed environment, the humidity of the normal-pressure air in the sealed box must be kept within 5%, and there must be no dust intrusion in the sealed box. It is necessary to ensure that the box is clean, otherwise it will easily cause damage. Unstable insulation ability, etc. The decrease of its insulation capacity will directly cause abnormalities such as poor arc extinguishing ability, which may easily cause safety hazards; and the existing air-insulated ring network cabinets are easily affected by environments such as high altitudes and polluted areas.

In response to this abnormal situation, the company proposes to use solid-sealed insulation technology or gas insulation as the insulation medium, which can not only ensure the insulation requirements of medium and high voltage ring network cabinets, but also make the operation more intelligent, achieving the effect of monitoring thousands of miles away.

Contents of the invention

Aiming at the problems existing in the prior art, the utility model provides an environment-friendly outdoor smart ring that can improve the insulation capacity, have obvious arc extinguishing effect, safety, higher intelligence, simple structure, small volume, cheap price and convenient installation. network cabinet.

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

An environment-friendly outdoor intelligent ring network cabinet, including a cabinet body, the cabinet body is provided with a panel and a pressure relief device, and the panel is provided with a live display, a load switch with breaking current, a pressure indicator, Load switch operating hole, grounding switch operating hole, ammeter and fault indicator, the cabinet is provided with a grounding switch, a grounding switch operating mechanism and a fuse room, and the bottom of the cabinet is provided with a cable junction room and a grounding busbar and insulating sleeves for incoming and outgoing wires, voltage transformers or current transformers are installed in the cable junction room, and opening and closing operation buttons are provided in the middle of the cabinet.

Further, the current transformer is provided with an overvoltage protector.

Further, the panel is provided with a padlock device.

Further, the said panel is provided with a fuse action indicator mark.

Further, a load switch operating mechanism is installed in the air box connected to the pressure indicator, and a load switch operating hole is connected to the load switch operating mechanism, and the load switch is a three-position load switch.

Further, the pressure relief device is located at the bottom of the air box, and there is a metal plate between the pressure relief device and the cable connection chamber.

Further, the grounding switch operating mechanism is connected with a grounding switch operating hole, and the grounding switch is a three-position grounding switch.

Further, the panel is provided with a voltmeter and an electromagnetic lock of the front door.

Compared with the prior art, the utility model has the advantages of:

1. The product adopts gas or solid insulation vacuum arc extinguishing technology, the insulation capacity is improved, and the arc extinguishing effect is obvious.

2. This device has a high cost performance. After testing, the functions of intelligent ring network cabinet electric operation, intelligent control module, ring network cabinet power supply, ring network cabinet body insulation monitoring and ring network cabinet passive electromagnetic locking device The technical indicators of other aspects meet the relevant technical requirements, and the safety and intelligence are higher.

3. The device is simple in structure, small in size, cheap in price, easy to install, and can be installed on site in any place.

4. The structure of this patent is specially set, and solid insulation or gas is used as the bonding medium. The insulation capacity of the new insulation medium is greatly improved, thereby reducing the safety distance in the cabinet, thereby further reducing the product volume, reducing the occupied space, and reducing the product cost.

Description of drawings

Figure 1 is a schematic diagram of the internal structure of an environmentally friendly intelligent ring network cabinet.

Figure 2 is a schematic diagram of the panel of an environment-friendly smart ring network cabinet.

In the figure: 1. Cabinet body 2. Pressure indicator 3. Live display 4. Panel 5. Fuse action indicator 6. Cable wiring compartment 7. Earthing switch operation hole 8. Load switch operation hole 9. Opening and closing operation Button 10, pressure relief device 11, insulation bushing for incoming and outgoing lines 12, grounding busbar 13, grounding switch operating mechanism 14, padlock device 15, ammeter 16, fault indicator 17, load switch 18, load switch operating mechanism 19, fuse Room 20, front door electromagnetic lock.

detailed description

The utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

As shown in Figures 1 and 2, an environmentally friendly outdoor intelligent ring network cabinet includes a cabinet body 1. The cabinet body 1 is provided with a panel 4 and a safe and complete pressure relief device 10. On the panel 4 It is equipped with a charged display 3, a load switch 17 with breaking current, a pressure indicator 2, a load switch operating hole 8, a grounding switch operating hole 7, an ammeter 15 and a fault indicator 16. The cabinet 1 is provided with a grounding Switch, earthing switch operating mechanism 13 and fuse chamber 19, fuse is installed in the fuse insulating cylinder poured by epoxy resin, can be easily replaced from the front. The fuses are completely isolated from the outside world, thus ensuring safe electrical isolation. If one phase fuse is blown, the load switch 17 will trip and trip. The whole set of equipment is a fixed switch cabinet, and the external dimensions can be processed according to user requirements, such as 10kV or 35kV. The bottom of the cabinet body 1 is provided with a cable junction room 6, a grounding busbar 12 and an insulating bushing 11 for incoming and outgoing lines. A voltage transformer or a current transformer is installed in the cable junction room 6, and the voltage transformer is a The protection and metering equipment provide voltage signals, and provide the secondary voltage and auxiliary secondary voltage signals of the protected system for the device. The current transformer is provided with an overvoltage protector, which functions as a safety protection circuit. The middle part of the cabinet body 1 is provided with an opening and closing operation button 9 . When the device is misjudged due to internal failure of the device or miswiring by personnel, etc., there is mechanical and electrical interlocking of the components in cabinet 1, and the misoperation will not act.

The panel 4 is provided with a padlock device 14 . The padlock plate linked by the padlock device 14 blocks the operation hole, and only when the padlock device 14 is moved can the operating handle be inserted into the operation hole. Padlock can be configured when not in operation to prevent misoperation by unauthorized personnel. The panel 4 is provided with a fuse action indication mark 5 . The gas box connected to the pressure indicator 2 is equipped with a load switch operating mechanism 18, and gas or solid-sealed insulation technology is used in the gas box to seal the live body such as the load switch 17 to enhance its insulation capacity, thereby improving the overall arc extinguishing ability , reducing the safety distance in the air box has achieved the convenience of reducing volume, reducing cost and saving space. The load switch operating mechanism 18 is connected with a load switch operating hole 8, and the load switch 17 is a three-position load switch. The pressure relief device 10 is located at the bottom of the air box, and there is a metal plate between the pressure relief device 10 and the cable junction chamber 6. If the pressure in the air box is too high, the explosion-proof gasket in the device can be broken to release the pressure. . The grounding switch operating mechanism 13 is connected with a grounding switch operating hole 7, and the grounding switch is a three-position grounding switch. Described panel 4 is provided with voltmeter and front door electromagnetic lock 20.

Claims (8)

1. An environment-friendly outdoor intelligent ring network cabinet, comprising a cabinet, characterized in that the cabinet is provided with a panel and a pressure relief device, and the panel is provided with a charged display and a load switch for breaking current , pressure indicator, load switch operating hole, grounding switch operating hole, ammeter and fault indicator, the grounding switch, grounding switch operating mechanism and fuse room are arranged in the cabinet, and the cable wiring is provided at the bottom of the cabinet room, grounding busbar, and insulating sleeves for incoming and outgoing wires, voltage transformers or current transformers are installed in the cable wiring room, and opening and closing operation buttons are provided in the middle of the cabinet. 2. An environment-friendly outdoor intelligent ring network cabinet according to claim 1, characterized in that the current transformer is provided with an overvoltage protector. 3. An environment-friendly outdoor intelligent ring network cabinet according to claim 1 or 2, characterized in that the panel is provided with a padlock device. 4. An environment-friendly outdoor intelligent ring network cabinet according to claim 3, characterized in that said panel is provided with a fuse action indication mark. 5. An environment-friendly outdoor intelligent ring network cabinet according to claim 4, characterized in that a load switch operating mechanism is installed in the air box connected to the pressure indicator, and the load switch operating mechanism is connected with a The load switch operation hole, the load switch is a three-position load switch. 6. An environment-friendly outdoor intelligent ring network cabinet according to claim 5, characterized in that the pressure relief device is located at the bottom of the air box, and there is a metal plate between the pressure relief device and the cable junction room. 7. An environment-friendly outdoor intelligent ring network cabinet according to claim 6, characterized in that the grounding switch operating mechanism is connected with a grounding switch operation hole, and the grounding switch is a three-position grounding switch. 8. An environment-friendly outdoor smart ring network cabinet according to claim 7, characterized in that the panel is provided with a voltmeter and an electromagnetic lock for the front door.