CN205104993U - Building electrical safety monitoring system - Google Patents

Abstract

The utility model discloses a building electricity safety monitoring system. The system comprises: temperature monitoring equipment; The temperature signal and switching value monitoring equipment upload the switching value signal for processing, and output the temperature signal and switching value signal in the form of a graph. The utility model adds a building electricity safety monitoring system to the modern building power supply system to monitor the operating status of the building power supply system equipment in real time. Through the electrical parameter monitoring of the electrical equipment operation, the video/environment monitoring system, and the message delivery system, the control personnel can Monitor and monitor the key parts of the power station at any time, so as to be able to understand and grasp the safety situation of the substation in real time and directly, and respond to the situation in time, which can not only provide good power supply services for the building, but also can Improve the safe operation of the power supply system.

Description

Building electricity safety monitoring system

technical field

The utility model relates to a monitoring system, in particular to a building electricity safety monitoring system.

Background technique

As shown in Figure 1, it is a schematic diagram of a building power supply system, which includes two 10kV power supplies. Transformer 103 and second main transformer 104, second 10kV bus 102 is connected with third main transformer 105 and fourth main transformer 106, first 10kV bus 101, second 10kV bus 102, third main transformer 105 and fourth main Transformer 106 steps down the 10kV supply to 0.4kV. The first main transformer 103 is connected to the first 0.4kV busbar 111 through the first main transformer 0.4kV incoming line 107 circuit, and the second main transformer 104 is connected to the second 0.4kV busbar 113 through the second main transformer 0.4kV incoming line 109 circuit, The third main transformer 105 is connected to the third 0.4kV bus 112 through the third main transformer 0.4kV incoming line 108 circuit, and the fourth main transformer 106 is connected to the fourth 0.4kV bus 114 through the fourth main transformer 0.4kV incoming line 110 circuit. The first 0.4kV bus 111 is divided into two sections, which are connected by the first sectional circuit breaker 115; the second 0.4kV bus 113 is divided into two sections, which are connected by the second sectional circuit breaker 117; the third 0.4kV bus 112 is divided into The two sections are connected through the third section circuit breaker 116 ; the fourth 0.4kV bus bar 114 is divided into two sections and connected through the fourth section circuit breaker 118 . The first 0.4kV bus 111 is connected to the third 0.4kV bus 112 through the first bus tie switch 119 , and the second 0.4kV bus 113 is connected to the fourth 0.4kV bus 114 through the second bus tie switch 120 . The respective circuits of the first 0.4kV bus 111 , the second 0.4kV bus 113 , the third 0.4kV bus 112 and the fourth 0.4kV bus 114 are connected with lighting bus, lighting main line, power supply cabinet, compensation cabinet, security power supply and guarantee power supply. The power supply system is also equipped with an emergency power supply, which uses a self-contained generator and supplies power through a 0.4kV bus.

With the rapid economic development, electricity consumption increases year by year, and the contradiction between power supply and demand becomes more prominent. While the demand for electricity continues to increase, the problem of electricity safety has gradually become prominent. Modern high-rise buildings consume a lot of electricity, and there are many types of user-side equipment, and there are often electrical equipment with high power or high requirements for power supply stability, which makes modern high-rise buildings have very high requirements for power reliability.

How to effectively monitor the operating status of electrical equipment in the building power supply system and ensure the continuity of power supply is always a topic worthy of in-depth research and analysis. Among them, accurate and real-time safety monitoring of electrical equipment and power supply system is a prerequisite for the implementation of electricity safety management and regulation.

Utility model content

The utility model provides a building electricity safety monitoring system, which can monitor the operating electrical parameters and operating environment of electrical equipment in key parts of the building substation in real time, and grasp the safety situation of the substation in real time, so as to make timely decisions on the occurrence of the situation. reaction.

In order to achieve the above purpose, the utility model provides a building electricity safety monitoring system, which is used to detect the operating status of building power supply system equipment. Its characteristics are that the system includes:

Temperature monitoring equipment, whose temperature collection points are set at the main transformer of the building power supply system, the incoming line at the low-voltage end of the main transformer, the bus-tie switch of the low-voltage end busbar, the section circuit breaker of the low-voltage end busbar, and the downstream equipment of the low-voltage end busbar to collect temperature signals respectively ;

Switching value monitoring equipment, the switching value collection point circuit is connected to the main transformer, the low-voltage end busbar bus tie switch, the low-voltage end bus section circuit breaker, and the downstream equipment of the low-voltage end busbar to collect the switching value signal;

The main control circuit, whose input circuit is connected to the temperature monitoring device and the switching value monitoring device, respectively processes the temperature signal uploaded by the temperature monitoring device and the switching value signal uploaded by the switching value monitoring device, and outputs the temperature signal and the switching value signal in the form of a graph.

The above-mentioned temperature monitoring device employs a temperature measuring section having a multi-function detector.

The temperature collection points of the temperature measurement part of the above-mentioned multifunctional detector are set at: the main transformer, the incoming line of the low-voltage end of the main transformer, the switchgear of the busbar bus tie switch at the low-voltage end, the front part of the shell of the bus section circuit breaker at the low-voltage end, Shell side and bottom sheet metal.

The output terminal circuit of the above-mentioned main control circuit is connected with a main transformer thermostat, and the main transformer thermostat is set at the main transformer. The main control circuit presets a threshold value, and the temperature of the main transformer is higher than the threshold value. .

The above-mentioned main transformer temperature controller is attached to the main transformer or arranged close to the main transformer.

The downstream equipment of the above-mentioned low-voltage side busbar includes building lighting main line, building lighting busbar, security power supply cabinet, protection power supply cabinet and compensation cabinet.

The output terminal circuit of the above-mentioned main control circuit is connected with a printing device, and/or a display device, and/or an alarm device.

The above-mentioned printing equipment, display equipment and alarm equipment are arranged in the main control room of the building power supply system.

Compared with the prior art, the utility model building electricity safety monitoring system has the advantage that the utility model adds a building electricity safety monitoring system to the modern building power supply system to monitor the operating status of the building power supply system equipment in real time. Equipment operation electrical parameter monitoring, video/environmental monitoring system, and message delivery system enable the center on duty and enterprise managers to monitor and monitor the key parts of the power station at any time, so as to be able to understand and grasp the safety of the substation directly and in real time The situation, and respond to the situation in time, can not only provide good power supply service for the building, but also improve the safe operation of the power supply system.

Description of drawings

Figure 1 is a schematic diagram of a building power supply system;

Fig. 2 is a circuit module diagram of the utility model building electricity safety monitoring system.

detailed description

Below in conjunction with accompanying drawing, further illustrate the specific embodiment of the present utility model.

As shown in Figure 2, it is an embodiment of a building electricity safety monitoring system for detecting the operating status of building power supply system equipment as shown in Figure 1, and the monitoring system includes: temperature monitoring equipment 201, switching value monitoring equipment 202 , main control circuit 203, main transformer temperature controller 204, printing device 205, display device 206, alarm device 207.

The temperature monitoring device 201 adopts the temperature measuring part of the multi-function detector. In this embodiment, four temperature monitoring devices 201 are provided, respectively corresponding to monitoring four power supply lines where the first main transformer 103, the second main transformer 104, the third main transformer 105 and the fourth main transformer 106 are located: the first power supply line, The second power supply line, the third power supply line, and the fourth power supply line. The temperature collection point of each temperature monitoring device 201 is respectively set in the main transformer of the building power supply system of each power supply line, the main transformer low-voltage end incoming line, the low-voltage end busbar bus tie switch, the low-voltage end bus section circuit breaker, the low-voltage end busbar The downstream equipment collects temperature signals respectively. Specifically:

The temperature collection point of the temperature monitoring equipment 201 corresponding to the first power supply line is set at: the first main transformer 103; the 0.4kV incoming line 107 of the first main transformer; the switch cabinet of the first bus tie switch 119; the first section circuit breaker 115 shell front, shell side and bottom metal plate; the downstream equipment connected under the first 0.4kV bus 111, the downstream equipment includes building lighting main line, building lighting bus, security power supply cabinet, guarantee power supply cabinet, compensation cabinet, generator The tie switch and the temperature monitoring device 201 are respectively arranged in the switch cabinets of the downstream devices or in the switch auxiliary nodes. The temperature monitoring device 201 monitors the temperature of the power supply device at the above location in real time, converts it into a temperature signal and uploads it to the main control circuit 203 .

The temperature collection point of the temperature monitoring equipment 201 corresponding to the second power supply line is set at: the second main transformer 104; the second main transformer 0.4kV incoming line 109; the switch cabinet of the second bus tie switch 120; the second section circuit breaker 117's shell front, shell side and bottom metal plate; the downstream equipment connected under the second 0.4kV bus 113, the downstream equipment includes building lighting main line, building lighting bus, security power supply cabinet, guarantee power supply cabinet, compensation cabinet, generator The tie switch and the temperature monitoring device 201 are respectively arranged in the switch cabinets of the downstream devices or in the switch auxiliary nodes. The temperature monitoring device 201 monitors the temperature of the power supply device at the above location in real time, converts it into a temperature signal and uploads it to the main control circuit 203 .

The temperature collection points of the temperature monitoring equipment 201 corresponding to the third power supply line are set at: the third main transformer 103; the third main transformer 0.4kV incoming line 108; the front part, the side part and the bottom part of the shell of the third section circuit breaker 116 Metal plate; the downstream equipment connected under the third 0.4kV bus 112, the downstream equipment includes building lighting main line, building lighting bus, security power supply cabinet, security power supply cabinet, compensation cabinet, generator contact switch, and temperature monitoring equipment 201 is respectively set in the In the switchgear of some downstream equipment or switch auxiliary nodes. The temperature monitoring device 201 monitors the temperature of the power supply device at the above location in real time, converts it into a temperature signal and uploads it to the main control circuit 203 .

The temperature collection point of the temperature monitoring equipment 201 corresponding to the fourth power supply line is set at: the fourth main transformer 104; the 0.4kV incoming line 110 of the fourth main transformer; the front part, the side part and the bottom of the shell of the fourth section circuit breaker 118 Metal plate; the downstream equipment connected to the fourth 0.4kV busbar 114, the downstream equipment includes building lighting main line, building lighting busbar, security power supply cabinet, security power supply cabinet, compensation cabinet, generator contact switch, and temperature monitoring equipment 201 is respectively set in the In the switchgear of some downstream equipment or switch auxiliary nodes. The temperature monitoring device 201 monitors the temperature of the power supply device at the above location in real time, converts it into a temperature signal and uploads it to the main control circuit 203 .

The switching value monitoring device 202 adopts a switching value monitoring instrument. In this embodiment, four switching value monitoring devices 202 are provided, respectively corresponding to monitoring the first main transformer 103, the second main transformer 104, the third main transformer 105 and the fourth main transformer The four power supply lines where 106 is located: the first power supply line, the second power supply line, the third power supply line, and the fourth power supply line. The switching value collection point circuit of each switching value monitoring device 202 is connected to the main transformer of each power supply line, the bus tie switch of the low-voltage end bus, the section circuit breaker of the low-voltage end bus, and the downstream equipment of the low-voltage end bus to collect the switching value signal. Specifically:

The circuit corresponding to the switching value monitoring device 202 of the first power supply line is connected to the first main transformer 103; the first bus tie switch 119; the first section circuit breaker 115; the downstream equipment connected under the first 0.4kV bus 111, the downstream equipment includes Building lighting main line, building lighting bus, security power supply cabinet, security power supply cabinet, compensation cabinet, generator contact switch. The switching value monitoring device 202 uploads the following parameters in real time: the displacement monitoring of the main transformer circuit breaker of the first main transformer 103, the monitoring of the main transformer bus voltage loss of the first main transformer 103, the switching value monitoring of the first bus tie switch 119, the monitoring of the switching value of the first main transformer 103 Switch monitoring of the first section circuit breaker 115, switching monitoring of the compensation cabinet connected under the first 0.4kV bus 111, and switching monitoring of the power cabinet.

The circuit corresponding to the switching value monitoring device 202 of the second power supply line is connected to the second main transformer 104; the second bus tie switch 120; the second section circuit breaker 117; the downstream equipment connected under the second 0.4kV bus 113, the downstream equipment includes Building lighting main line, building lighting bus, security power supply cabinet, security power supply cabinet, compensation cabinet, generator contact switch. The switching value monitoring device 202 monitors and uploads the following parameters in real time: the displacement monitoring of the main transformer circuit breaker of the second main transformer 104, the monitoring of the main transformer bus voltage loss of the second main transformer 104, the monitoring of the switching value of the second bus tie switch 120, Switching monitoring of the second section circuit breaker 117, switching monitoring of the compensation cabinet connected under the second 0.4kV bus 113, and switching monitoring of the power cabinet.

The circuit corresponding to the switching value monitoring device 202 of the third power supply line is connected to the third main transformer 105; the first bus tie switch 119; the third section circuit breaker 116; the downstream equipment connected under the third 0.4kV bus 112, the downstream equipment includes Building lighting main line, building lighting bus, security power supply cabinet, security power supply cabinet, compensation cabinet, generator contact switch. The switching value monitoring device 202 monitors and uploads the following parameters in real time: the displacement monitoring of the main transformer circuit breaker of the third main transformer 105, the monitoring of the main transformer bus voltage loss of the third main transformer 105, the monitoring of the switching value of the first bus tie switch 119, Monitoring of the switching value of the third section circuit breaker 116, monitoring of the switching value of the compensation cabinet connected under the third 0.4kV bus 112, and monitoring of the switching value of the power cabinet.

The circuit corresponding to the switching value monitoring device 202 of the fourth power supply line is connected to the fourth main transformer 106; the second bus tie switch 120; the fourth section circuit breaker 118; the downstream equipment connected under the fourth 0.4kV bus 114, the downstream equipment includes Building lighting main line, building lighting bus, security power supply cabinet, security power supply cabinet, compensation cabinet, generator contact switch. The switching value monitoring device 202 performs real-time monitoring and uploading of the following parameters: the displacement monitoring of the main transformer circuit breaker of the fourth main transformer 106, the monitoring of the main transformer bus voltage loss of the fourth main transformer 106, the monitoring of the switching value of the second bus tie switch 120, The switching value monitoring of the fourth section circuit breaker 118, the switching monitoring of the compensation cabinet connected under the fourth 0.4kV bus 114, and the switching value monitoring of the power cabinet.

The main control circuit 203 is arranged on the near end of the temperature monitoring device 201 and the switching value monitoring device 202, and the input end is connected with the temperature monitoring device 201 and the switching value monitoring device 202; At the remote end, the input end is connected to the temperature monitoring device 201 and the switching value monitoring device 202 in wireless communication/circuit. The main control circuit 203 is used to process the temperature signal uploaded by the temperature monitoring device 201 and the switch signal uploaded by the switch monitoring device 202 respectively, and output the temperature signal and the switch signal in the form of a graph. The query function of collected data can display data in the form of curves, charts, reports, etc.

Preferably, the main control circuit 203 also has a data collection function for all electrical equipment collection terminals, including: three voltages, three currents, forward active energy indications, active power, reactive power, power factor, 1~31 Operating data such as sub-harmonics.

The first main transformer 103, the second main transformer 104, the third main transformer 105, and the fourth main transformer 106 are respectively equipped with a main transformer temperature controller 204, and the main transformer temperature controller 204 is attached to each main transformer or is set close to the main transformer. set up. The input end of the main transformer temperature controller 204 is connected to the output end of the main control circuit 203 through circuit/wireless communication. The main control circuit 204 presets the threshold value. When the temperature of the main transformer uploaded by one or several temperature monitoring devices 201 in the four power supply lines is higher than the threshold value, the main control circuit 204 controls the corresponding main transformer temperature controller 204 to control the temperature of the main transformer. Actions such as cooling down.

The printing device 205 , the display device 206 , and the alarm device 207 are arranged in the main control room of the building power supply system, and are connected to the output terminal of the main control circuit 203 .

The printing device 205 and the display device 206 visually display the change trend of the collected data, and the printing device 205 realizes the function of chart export and printing.

The display device 206 can display the primary wiring diagram of the building's power supply system. Through the primary wiring diagram of the system, the opening and closing instructions of the circuit breaker can be displayed in real time; and the values of various electrical parameters can be displayed on the wiring diagram, so that the personnel in the monitoring center can understand and grasp it timely and accurately. The real-time operation status of the substation equipment, and according to the pre-established plan, take corresponding measures in time to carry out operation control and message transmission for various situations, so as to ensure the safety of the substation. Support one-time dragging, zooming in and zooming out of the wiring diagram.

The display device 206 can also display the real-time operating data of the device in the form of a list, including various electrical parameter data such as three-item voltage, three-item current, forward active energy indication value, active power, reactive power, and power factor.

When the equipment is running abnormally, the display device 206 will pop up the information of early warning and alarm equipment. The alarm device 207, such as an alarm signal box, provides a remote synchronous sound and light alarm function (providing a 220V alarm contact) through an audible and visual alarm.

Although the content of the present invention has been described in detail through the above preferred embodiments, it should be recognized that the above description should not be considered as a limitation of the present invention. Various modifications and substitutions of the present utility model will be obvious to those skilled in the art after reading the above content. Therefore, the protection scope of the present utility model should be defined by the appended claims.

Claims (8)

1. A building electricity safety monitoring system for detecting the operating status of building power supply system equipment, characterized in that the system includes: Temperature monitoring equipment, whose temperature collection points are set at the main transformer of the building power supply system, the incoming line at the low-voltage end of the main transformer, the bus-tie switch of the low-voltage end busbar, the section circuit breaker of the low-voltage end busbar, and the downstream equipment of the low-voltage end busbar to collect temperature signals respectively ; Switching value monitoring equipment, the switching value collection point circuit is connected to the main transformer, the low-voltage end busbar bus tie switch, the low-voltage end bus section circuit breaker, and the downstream equipment of the low-voltage end busbar to collect the switching value signal; The main control circuit, whose input circuit is connected to the temperature monitoring device and the switching value monitoring device, respectively processes the temperature signal uploaded by the temperature monitoring device and the switching value signal uploaded by the switching value monitoring device, and outputs the temperature signal and the switching value signal in the form of a graph. 2. The building electricity safety monitoring system according to claim 1, wherein the temperature monitoring device adopts a temperature measuring part with a multi-function detector. 3. The building electricity safety monitoring system as claimed in claim 2, wherein the temperature collection point of the temperature measurement part of the multifunctional detector is set on: the main transformer, the main transformer low-voltage end incoming line, the low-voltage end In the switch cabinet of the bus tie switch, the front part of the housing, the side part of the housing and the bottom metal plate of the bus section circuit breaker at the low-voltage side. 4. The building electricity safety monitoring system as claimed in claim 1, wherein the main control circuit output terminal circuit is connected with a main transformer thermostat, and the main transformer thermostat is arranged at the main transformer, and the main control circuit The threshold is preset, the temperature of the main transformer is higher than the threshold, and the temperature controller of the main transformer is controlled to cool down the temperature of the main transformer. 5 . The building electricity safety monitoring system according to claim 4 , wherein the main transformer temperature controller is attached to the main transformer or installed close to the main transformer. 6 . 6 . The building electricity safety monitoring system according to claim 1 , wherein the downstream equipment of the low-voltage side bus includes a building lighting main line, a building lighting bus, a security power supply cabinet, a guarantee power supply cabinet, and a compensation cabinet. 7. The building electricity safety monitoring system according to claim 1, characterized in that, the output terminal of the main control circuit is connected with a printing device, and/or a display device, and/or an alarm device. 8. The building electricity safety monitoring system according to claim 7, wherein the printing device, the display device and the alarm device are arranged in the main control room of the building power supply system.