CN106410638A - Dual-power-supply low-voltage switch cabinet capable of realizing remote monitoring - Google Patents

Abstract

The invention discloses a dual power supply low-voltage switchgear for remote monitoring, which comprises a cabinet body; a cabinet door is arranged on the front side of the cabinet body; an upper cooling box is arranged on the upper end of the cabinet body, and the upper cooling box communicates with the cabinet body , the side of the upper heat dissipation box is provided with a heat dissipation fan, and several heat dissipation grid holes are opened on the four sides of the upper heat dissipation box, and the opening of the heat dissipation grid holes is downward; the lower end of the cabinet is provided with a lower heat dissipation box, and the lower heat dissipation box is connected with the The cabinets are connected, and the side of the lower cooling box is provided with a ventilation grille window; the cabinet is also provided with a temperature sensor and a central processing unit, the temperature sensor is connected to the central processing unit, and the central processing unit is connected to the cooling fan; Equipped with a lighting mechanism; the dual-power low-voltage switchgear can operate safely and stably, effectively preventing problems such as premature aging of internal electrical equipment and damage to meters caused by excessive internal temperature.

Description

Dual-power low-voltage switchgear for remote monitoring

technical field

The invention relates to the technical field of electric equipment, in particular to a low-voltage switchgear with dual power supplies for remote monitoring.

Background technique

The power conversion system is used to solve the maintenance problem when the ATS equipment in the data center fails, and can monitor and guide the operation process of the ATS system, and realize the all-round monitoring, management and early warning functions of the ATS product. However, in the existing power conversion system, when the ATS equipment in the data center fails, power-off operation is required to solve the fault problem. At the same time, power-off operation is also required during maintenance, resulting in the instability of the entire system, and at the same time, there is a certain security for the data. Hidden danger. Existing power conversion systems, that is, most low-voltage switchgears do not have ventilation devices, and rely on the cooling fan of the equipment itself for cooling. It will affect the service life of the equipment, and even easily cause serious consequences of equipment accidents such as overheating, short circuit, and fire. At the same time, it is necessary to confirm the temperature of the equipment during maintenance, and it often takes a certain period of cooling before maintenance can be carried out, and the remote monitoring function cannot be realized, which is not conducive to the operation and maintenance personnel to repair in time when the ATS equipment fails.

Contents of the invention

The object of the present invention is to provide a low-voltage switchgear with dual power supplies for remote monitoring, so as to solve the problems raised in the above-mentioned background technology.

To achieve the above object, the present invention provides the following technical solutions:

A dual-power low-voltage switchgear for remote monitoring, comprising a cabinet body; a cabinet door is arranged on the front side of the cabinet body; an upper heat dissipation box is arranged on the upper end of the cabinet body, the upper heat dissipation box is connected with the cabinet body, and the upper heat dissipation box A heat dissipation fan is arranged on the side, and several heat dissipation grid holes are opened on the four sides of the upper heat dissipation box, and the openings of the heat dissipation grid holes are downward; the lower end of the cabinet body is provided with a lower heat dissipation box, and the lower heat dissipation box is connected with the cabinet body , the side of the lower cooling box is provided with a ventilation grille window; the cabinet is provided with a mains A circuit power input circuit breaker, A circuit power bypass circuit breaker, A circuit power output circuit breaker, ATS transfer switch output circuit breaker, PC Level dual power supply automatic transfer switch, mains B-circuit power input circuit breaker, B-circuit power bypass circuit breaker, B-circuit power output circuit breaker; the cabinet is also equipped with a man-machine interface, which is connected to the mains A-circuit Power input circuit breaker, A-way power bypass circuit breaker, A-way power output circuit breaker, ATS transfer switch output circuit breaker, PC-level dual power automatic transfer switch, mains B-way power input circuit breaker, B-way power bypass breaker The device and the B-way power output circuit breaker are connected; the cabinet is also provided with a temperature sensor and a central processing unit, the temperature sensor is connected to the central processing unit, and the central processing unit is connected to a heat dissipation fan; the cabinet is also provided with a lighting mechanism.

As a further solution of the present invention: two heat dissipation fans are arranged at intervals on the four sides of the upper heat dissipation box.

As a further solution of the present invention: the inner cavity of the cabinet is divided into an upper cavity, a middle cavity and a lower cavity by a mesh plate, the mains A circuit power input circuit breaker, the A circuit power supply bypass circuit breaker and the A circuit power supply The output circuit breaker is installed in the upper cavity, the output circuit breaker of the ATS transfer switch, the man-machine interface and the PC-level dual power automatic transfer switch are all installed in the middle cavity, the mains B circuit power input circuit breaker, and the B circuit power bypass circuit breaker Both the breaker and the B-way power output circuit breaker are installed in the lower cavity.

As a further solution of the present invention: the cabinet door is provided with an observation window at a corresponding position of the man-machine interface.

As a further solution of the present invention: one end of the mains A circuit power input circuit breaker and one end of the mains B circuit power input circuit breaker are connected to one end of the PC-level dual power automatic transfer switch, and the PC-level dual power automatic transfer switch The other end of the ATS transfer switch output circuit breaker is connected to one end of the ATS transfer switch output circuit breaker, and the other end of the ATS transfer switch output circuit breaker is connected to one end of the A-way power output circuit breaker and one end of the B-way power output circuit breaker, and the A-way power supply bypass circuit breaker. One end is connected to one end of the power output circuit breaker of road A; The other end is connected, and the other end of the input circuit breaker of the mains circuit B is connected with the other end of the bypass circuit breaker of the circuit B power supply.

As a further solution of the present invention: the cabinet is further provided with a watchdog module and a storage module, and both the watchdog module and the storage module are electrically connected to the central processing unit.

As a further solution of the present invention: an alarm module, an infrared scanning device and a monitoring module are arranged on the top of the upper cooling box, and the alarm module, the infrared scanning device and the monitoring module are all connected to the central processing unit.

As a further solution of the present invention: the central processor is connected with a signal transmitter, and the remote monitoring terminal is provided with a signal receiver that matches the signal transmitter, and the central processor communicates through the cooperation of the signal transmitter and the signal receiver. Connect to remote monitoring terminal.

As a further solution of the present invention: the cabinet door is also provided with a control panel, and the control panel is connected to the central processing unit.

As a further solution of the present invention: the lighting mechanism is composed of a lighting controller, a lighting device installed in the cabinet, and an angle sensor installed at the junction of the cabinet door and the cabinet body, and both the angle sensor and the lighting mechanism are connected to the lighting controller.

Compared with prior art, the beneficial effect of the present invention is:

1. The dual power supply low-voltage switchgear can realize the uninterrupted power supply function when the ATS equipment is repaired, which brings convenience to people;

2. The dual-power low-voltage switchgear can operate safely and stably, effectively preventing problems such as premature aging of internal electrical equipment and damage to meters caused by excessive internal temperature. Due to the use of intelligent temperature control, it not only ensures the demand for exhaust air , and avoid the energy consumption caused by the continuous operation of the cooling fan, which is conducive to reducing energy consumption;

3. The dual power supply low-voltage switchgear can realize the remote monitoring function, so that the corresponding person in charge can know the fault information in time when the equipment fails.

Description of drawings

Figure 1 is a schematic diagram of the structure of the dual-power low-voltage switchgear for remote monitoring in the closed state.

Fig. 2 is a schematic diagram of the structure of the dual-power low-voltage switchgear for remote monitoring in an open state.

Fig. 3 is a schematic diagram of circuit connection of a dual-power low-voltage switchgear for remote monitoring.

Figure 4 is a schematic diagram of the electrical connection of the dual-power low-voltage switchgear for remote monitoring.

Fig. 5 is a structural schematic diagram of a lighting mechanism in a low-voltage switchgear with dual power supplies for remote monitoring.

In the figure: 1-cabinet body, 2-cabinet door, 3-observation window, 4-lower cooling box, 5-ventilation grille window, 6-upper cooling box, 7-alarm module, 8-infrared scanning device, 9- Monitoring module, 10-radiation fan, 11-radiation grid hole, 12-mains A circuit power input circuit breaker, 13-A circuit power bypass circuit breaker, 14-A circuit power output circuit breaker, 15-ATS transfer switch output Circuit breaker, 16-man-machine interface, 17-PC-level dual power supply automatic transfer switch, 18-mains circuit B power input circuit breaker, 19-B power supply bypass circuit breaker, 20-B power output circuit breaker, 21 -Lighting device, 22-temperature sensor, 23-central processing unit, 24-watchdog module, 25-lighting mechanism, 26-storage module, 27-signal transmitter, 28-signal receiver, 29-remote monitoring terminal, 30-lighting controller, 31-angle sensor, 32-control panel.

detailed description

The technical solutions of the present invention will be further described in detail below in conjunction with specific embodiments.

Please refer to Figures 1-5, a low-voltage switch cabinet with dual power supplies for remote monitoring, including a cabinet body 1; a cabinet door 2 is provided on the front side of the cabinet body 1; an upper cooling box 6 is provided at the upper end of the cabinet body 1, The upper heat dissipation box 6 is connected with the cabinet body 1, and the upper heat dissipation box 6 is provided with a heat dissipation fan 10. On the four sides of the upper heat dissipation box 6, there are several heat dissipation grid holes 11, and the openings of the heat dissipation grid holes 11 are downward. Since the upper heat dissipation box 6 is connected with the cabinet body 1, the heat in the cabinet body 1 diffuses into the upper heat dissipation box 6, and the heat in the upper heat dissipation box 6 is quickly dissipated through the synergistic effect of the heat dissipation fan 10 and the heat dissipation grid hole 11. Note that the number of heat dissipation fans 10 is not limited. In this embodiment, preferably, two heat dissipation fans 10 are arranged at intervals on the four sides of the upper heat dissipation box 6;

The lower end of the cabinet body 1 is provided with a lower heat dissipation box 4, the lower heat dissipation box 4 is connected with the cabinet body 1, and the side of the lower heat dissipation box 4 is provided with a ventilation grille window 5, and the ventilation grille window 5 can block sundries and avoid debris Entering the lower cooling box 4, under the action of the cooling fan 10, a large amount of air is sent into the cabinet body 1 through the ventilation grille window 5, and at the same time, the lower cooling box 4 cooperates with the upper cooling box 6 to make the air in the cabinet body 1 Rapid circulation to achieve cooling effect;

The cabinet body 1 is provided with a mains A circuit power input circuit breaker 12, A circuit power supply bypass circuit breaker 13, A circuit power output circuit breaker 14, ATS transfer switch output circuit breaker 15, and a PC-level dual power automatic transfer switch 17. Mains B-circuit power input circuit breaker 18, B-circuit power supply bypass circuit breaker 19, B-circuit power output circuit breaker 20, PC-level dual power automatic transfer switch is ATS, mains A-circuit power input circuit breaker 12 One end and one end of the mains B circuit power input circuit breaker 18 are connected to one end of the PC-level dual-power automatic transfer switch 17, and the other end of the PC-level dual-power automatic transfer switch 17 is connected to one end of the ATS transfer switch output circuit breaker 15, and the ATS conversion The other end of the switch output circuit breaker 15 is respectively connected to one end of the A-way power output circuit breaker 14 and one end of the B-way power output circuit breaker 20, and one end of the A-way power supply bypass circuit breaker 13 is connected to one end of the A-way power output circuit breaker 14 One end of the B-way power bypass breaker 19 is connected to one end of the B-way power output breaker 20, and the other end of the mains A-way power input breaker 12 is connected to the other end of the A-way power bypass breaker 13. The other end of the B-way power input circuit breaker 18 is connected with the other end of the B-way power supply bypass circuit breaker 19; a man-machine interface 16 is also provided in the cabinet 1, and the man-machine interface 16 is respectively disconnected from the mains A-way power input 12, A-way power supply bypass circuit breaker 13, A-way power supply output circuit breaker 14, ATS transfer switch output circuit breaker 15, PC-level dual power supply automatic transfer switch 17, mains B-way power input circuit breaker 18, B-way power supply The bypass circuit breaker 19 and the B-way power supply output circuit breaker 20 are connected;

The inner cavity of the cabinet body 1 is divided into an upper cavity, a middle cavity and a lower cavity by a screen plate, the mains A circuit power input circuit breaker 12, the A circuit power bypass circuit breaker 13 and the A circuit power output circuit breaker 14 All are installed in the upper cavity, ATS transfer switch output circuit breaker 15, man-machine interface 16 and PC-level dual power automatic transfer switch 17 are all installed in the middle cavity, mains B circuit power input circuit breaker 18, B circuit power bypass Circuit breaker 19 and B circuit power output circuit breaker 20 are all installed in the lower cavity; described cabinet door 2 is equipped with observation window 3 at the corresponding position of man-machine interface 16, through observation window 3 can be opened the situation of cabinet door 2 Observing the man-machine interface 16 down, brings convenience to the inspectors;

The cabinet 1 is also provided with a temperature sensor 22 and a central processing unit 23, the temperature sensor 22 is connected to the central processing unit 23, the central processing unit 23 controls and connects the cooling fan 10, and the temperature sensor 22 is used to obtain the temperature in the cabinet 1 in real time. temperature data, and send the obtained temperature data to the central processing unit 23, and the central processing unit 23 controls the operation of the cooling fan 10 according to the temperature data, so as to ensure that the temperature of the cabinet body 1 is within the normal range and achieve the purpose of intelligent temperature control and heat dissipation ;

Also be provided with watchdog module 24 and storage module 26 in described cabinet 1, watchdog module 24 and storage module 26 all are electrically connected central processing unit 23, and watchdog module 24 is used for appearing in central processing unit 23 Reset it during logic problem, realize the continuous work under unmanned state, storage module 26 is used for storing the work information of central processing unit 23, so that later period checks;

The top of the upper cooling box 6 is also provided with an alarm module 7, an infrared scanning device 8 and a monitoring module 9, and the alarm module 7, the infrared scanning device 8 and the monitoring module 9 are all connected to the central processing unit 23, and the central processing unit 23 is connected with a signal transmitter 27, the remote monitoring terminal 29 is provided with a signal receiver 28 matched with the signal transmitter 27, and the central processing unit 23 is connected to the remote monitoring terminal 29 through the cooperative communication between the signal transmitter 27 and the signal receiver 28, and the infrared scanning device 8 and the monitoring module 9 are used to monitor the switch cabinet, and the obtained monitoring screen is sent to the remote monitoring terminal 29 to realize the remote monitoring function of the switch cabinet. The sensor 22 acquires the temperature data in the cabinet 1 in real time, and sends the obtained temperature data to the central processing unit 23, and the central processing unit 23 detects that the temperature in the cabinet 1 is abnormal, starts the control alarm module 7, and sends out an alarm signal , to remind the nearby personnel, and at the same time, the central processing unit 23 sends the alarm signal to the remote monitoring terminal 29, so that the corresponding person in charge can handle it in time;

The cabinet door 2 is also provided with a control panel 32, the control panel 32 is connected to the central processing unit 23, and the control panel 32 is used to set the temperature in the cabinet 1;

The cabinet 1 is also provided with a lighting mechanism 25, the lighting mechanism 25 is composed of a lighting controller 30, a lighting device 21 installed in the cabinet 1, and an angle sensor 31 installed at the junction of the cabinet door 2 and the cabinet 1, Both the angle sensor 31 and the lighting mechanism 25 are connected to the lighting controller 30, the angle sensor 31 monitors the opening angle of the cabinet door 2, and sends the obtained angle data to the lighting controller 30, and the lighting controller 30 controls the lighting device according to the obtained angle data 21, so that when the staff opens the cabinet door 2, the lighting device 21 is automatically turned on under control, and when the staff closes the cabinet door 2, the lighting device 21 is controlled and automatically turned off.

The working principle of the present invention is: the dual power supply low-voltage switchgear for remote monitoring, because the upper heat dissipation box 6 is connected with the cabinet body 1, so the heat in the cabinet body 1 diffuses into the upper heat dissipation box 6, through the heat dissipation fan 10 and The synergistic effect of the heat dissipation grid holes 11 is to dissipate the heat in the upper heat dissipation box 6 quickly. Under the action of the heat dissipation fan 10, a large amount of air is sent into the cabinet body 1 through the ventilation grille window 5, and at the same time, the lower cooling box 4 and the upper cooling box 6 cooperate to make the air in the cabinet body 1 quickly circulate to achieve the cooling effect . The temperature sensor 22 is used to obtain the temperature data in the cabinet 1 in real time, and sends the obtained temperature data to the central processing unit 23, and the central processing unit 23 controls the operation of the cooling fan 10 according to the temperature data, thereby ensuring the temperature of the cabinet 1. The temperature is within the normal range, achieving the purpose of intelligent temperature control and heat dissipation. Both the infrared scanning device 8 and the monitoring module 9 are used to monitor the switch cabinet, and send the acquired monitoring screen to the remote monitoring terminal 29 to realize the remote monitoring function of the switch cabinet. When the central processing unit 23 monitors the abnormal temperature in the cabinet body 1, it will control the alarm module 7 to start, send an alarm signal, and remind nearby personnel, and the central processing unit 23 sends the alarm signal to the remote monitoring terminal 29 simultaneously, so that The corresponding person in charge will deal with it in a timely manner.

The user sends the power supply of the upper mains power line A to the input circuit breaker 12 of the power line A and the input terminal of the bypass breaker 13 of the power line A, and sends the power supply of the line B of the upper level mains power supply to the input circuit breaker 18 of the power line B and the side of the power line B circuit breaker 19 input. When working normally, the A-way power input circuit breaker 12 and the B-way power input circuit breaker 18 are closed, and the A-way power bypass breaker 13 and the B-way power bypass breaker 19 are disconnected. The dual power supply automatic transfer system sends the two-way power supply to the power input end of the PC-level dual-power automatic transfer switch 17 by the A-channel power input circuit breaker 12 and the B-channel power input circuit breaker 18, and then the PC-level dual-power automatic transfer switch 17 Output to the ATS transfer switch output circuit breaker 15, close the ATS transfer switch output circuit breaker 15, send the power after the PC-level dual power automatic transfer switch 17 to the output power bus of the dual power automatic transfer system, and close the A-way power supply The output circuit breaker 16 and the B-way power supply output circuit breaker 22 output the circuit breaker to supply power to the load. When the PC-level dual-power automatic transfer switch 17 breaks down or needs to be repaired, the power input circuit breaker corresponding to the PC-level dual-power automatic transfer switch 17 input power can be disconnected earlier (that is: if the PC-level dual-power automatic transfer switch at this time 17 works on the side of the power supply of circuit A, then disconnect the input circuit breaker 18 of the power supply of circuit B of the mains; at this time, the automatic transfer switch 17 of PC-level dual power supply works on the side of the power supply of circuit B, then disconnect the input circuit breaker 12 of the power supply of circuit A of the mains , and then close the corresponding bypass circuit breaker (if the PC-level dual power supply automatic transfer switch 17 is working on the A-way power supply side at this time, then close the A-way power supply bypass circuit breaker 13; at this time, the PC-level dual power supply automatic transfer switch 17 works on the B-way power supply side, then close the B-way power supply bypass circuit breaker 19), and then disconnect the ATS transfer switch output circuit breaker 15, the system is transferred to the bypass power supply, and the PC-level dual power supply automatic transfer switch 17 is isolated , exit the operation of the dual-power automatic transfer system. After the maintenance of the PC-level dual-power automatic transfer switch 17 is completed, follow the corresponding operation steps to resume the normal operation of the ATS equipment. First close the PC-level dual-power automatic transfer switch 17 corresponding to the input power. Power input circuit breaker (that is: if the PC-level dual power supply automatic transfer switch 17 is powered by the A road power supply bypass at this time, then close the market power A circuit power input circuit breaker 12; at this time, the PC-level dual power supply automatic transfer switch 17 is powered by the B If the mains supply is bypassed for power supply, then close the input circuit breaker 18 of the mains B circuit power supply, then set the PC-level dual-power automatic transfer switch 17 to automatic mode, so that the PC-level dual-power automatic transfer switch 17 can work normally, and then close the ATS Change-over switch output circuit breaker 15, then disconnect corresponding bypass circuit breaker (if this moment PC level double power supply automatic transfer switch 17 works on A road power supply side, then disconnect A road power supply bypass circuit breaker 13; When the PC-level dual-power automatic transfer switch 17 works on the B-way power supply side, then disconnect the B-way power supply bypass circuit breaker 19), and finally close the PC-level dual-power automatic transfer switch 17 and the other power supply input circuit breaker, and the dual power supply is automatically converted. The system returns to normal power supply.

The dual-power low-voltage switchgear for remote monitoring can realize the uninterrupted power supply function when ATS equipment is maintained, which brings convenience to people; the dual-power low-voltage switchgear for remote monitoring can operate safely and stably, effectively preventing Due to the premature aging of internal electrical equipment and damage to meters caused by excessive internal temperature, due to the use of intelligent temperature control, it not only ensures the demand for exhaust air, but also avoids the energy consumption caused by the continuous operation of cooling fans. It is beneficial to reduce energy consumption; the dual-power low-voltage switchgear for remote monitoring can realize the remote monitoring function, so that the corresponding person in charge can know the fault information in time when the equipment fails.

The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the above-mentioned embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various modifications can be made without departing from the gist of the present invention. kind of change.

Claims (10)

1. a kind of dual power supply low-tension switch cabinet realizing remote monitoring is it is characterised in that include cabinet（1）；Described cabinet（1）Before Side is provided with cabinet door（2）；Described cabinet（1）Upper end is provided with heat dissipation tank（6）, upper heat dissipation tank（6）With cabinet（1）It is connected, Upper heat dissipation tank（6）Side is provided with cooling fan（10）, upper heat dissipation tank（6）Several gate hole that radiate all are offered on four sides （11）, and the gate hole that radiates（11）Open Side Down；Described cabinet（1）Lower end is provided with lower heat dissipation tank（4）, lower heat dissipation tank（4）With Cabinet（1）It is connected, lower heat dissipation tank（4）Side is provided with air grid window（5）；Described cabinet（1）Inside it is provided with civil power A road electricity Source inputs breaker（12）, A road electrical power by-pass breaker（13）, A road power supply output breaker（14）, ATS change-over switch output Breaker（15）, PC level double power supply automatic transfer switch（17）, civil power B road power input breaker（18）, B road electrical power by-pass break Road device（19）, B road power supply output breaker（20）；Described cabinet（1）Inside it is additionally provided with man-machine interface（16）, man-machine interface（16）Point Not and civil power A road power input breaker（12）, A road electrical power by-pass breaker（13）, A road power supply output breaker（14）、ATS Change-over switch exports breaker（15）, PC level double power supply automatic transfer switch（17）, civil power B road power input breaker（18）、B Road electrical power by-pass breaker（19）, B road power supply output breaker（20）Connect；Described cabinet（1）Inside it is additionally provided with TEMP Device（22）And central processing unit（23）, temperature sensor（22）Connect central processing unit（23）, central processing unit（23）Control even Connect cooling fan（10）；Described cabinet（1）Inside it is additionally provided with lighting mechanism（25）.

2. the dual power supply low-tension switch cabinet realizing remote monitoring according to claim 1 is it is characterised in that described upper radiating Case（6）Four sides on be all arranged at intervals with two cooling fans（10）.

3. the dual power supply low-tension switch cabinet realizing remote monitoring according to claim 2 is it is characterised in that described cabinet （1）Inner chamber is divided into upper cavity, middle cavity and lower chamber, civil power A road power input breaker by web plate（12）, by the power supply of A road Circuit breaker（13）Export breaker with A road power supply（14）It is installed in epicoele body, ATS change-over switch exports breaker （15）, man-machine interface（16）With PC level double power supply automatic transfer switch（17）It is installed in lumen body, civil power B road power input Breaker（18）, B road electrical power by-pass breaker（19）Export breaker with B road power supply（20）It is installed in cavity of resorption body.

4. the dual power supply low-tension switch cabinet realizing remote monitoring according to claim 3 is it is characterised in that described cabinet door （2）In man-machine interface（16）Correspondence position observation window is installed（3）.

5. the dual power supply low-tension switch cabinet realizing remote monitoring according to claim 1 or 2 or 3 or 4 it is characterised in that Described civil power A road power input breaker（12）One end and civil power B road power input breaker（18）One end be all connected with PC Level double power supply automatic transfer switch（17）One end, PC level double power supply automatic transfer switch（17）The other end connect ATS conversion Switch output breaker（15）One end, ATS change-over switch export breaker（15）The other end connect the output of A road power supply respectively Breaker（14）One end and B road power supply output breaker（20）One end, A road electrical power by-pass breaker（13）One end connect A road power supply output breaker（14）One end, B road electrical power by-pass breaker（19）One end connect B road power supply output breaker （20）One end, civil power A road power input breaker（12）The other end and A road electrical power by-pass breaker（13）The other end even Connect, civil power B road power input breaker（18）The other end and B road electrical power by-pass breaker（19）The other end connect.

6. the dual power supply low-tension switch cabinet realizing remote monitoring according to claim 5 is it is characterised in that described cabinet （1）Inside it is additionally provided with watchdog module（24）And memory module（26）, watchdog module（24）And memory module（26）All electrical Connect central processing unit（23）.

7. the dual power supply low-tension switch cabinet realizing remote monitoring according to claim 6 is it is characterised in that described upper radiating Case（6）Top also sets up alarm module（7）, infrared scanning device（8）And monitoring module（9）, alarm module（7）, infrared scan Device（8）And monitoring module（9）It is all connected with central processing unit（23）.

8. the dual power supply low-tension switch cabinet realizing remote monitoring according to claim 7 is it is characterised in that described centre Reason device（23）It is connected with signal projector（27）, remote monitoring terminal（29）Inside it is provided with and signal projector（27）Match Signal receiver（28）, central processing unit（23）By signal projector（27）And signal receiver（28）Cooperation communication connect To remote monitoring terminal（29）.

9. the dual power supply low-tension switch cabinet realizing remote monitoring according to claim 8 is it is characterised in that described cabinet door （2）On be additionally provided with control panel（32）, control panel（32）Connect central processing unit（23）.

10. the dual power supply low-tension switch cabinet realizing remote monitoring according to claim 9 is it is characterised in that described illumination Mechanism（25）By lighting controller（30）, be arranged on cabinet（1）Interior lighting device（21）And it is arranged on cabinet door（2）With cabinet （1）The angular transducer of junction（31）Composition, angular transducer（31）And lighting mechanism（25）It is all connected with lighting controller （30）.