CN105375627A - Distribution substation running state monitoring and security pre-warning apparatus - Google Patents

Abstract

The invention discloses an operation state monitoring and safety early warning device of a power distribution substation, which solves the technical problems that the real-time monitoring of the substation is not in place and the early warning is not timely. The invention discloses a set of operation status monitoring and safety early warning devices for power distribution substations, including SF6 gas transmitters, temperature and humidity sensors, sound sensors, infrared movement sensors, voltage and current power sensors, ion smoke sensors, on-site acquisition modules, on-site sound Light alarm, embedded touch screen industrial computer, SMS module, monitoring terminal; the SF6 gas transmitter, temperature and humidity sensor, sound sensor, infrared motion sensor, voltage and current power sensor, ion smoke sensor are connected to the on-site acquisition module; The on-site sound and light alarm is connected to the on-site acquisition module; the on-site acquisition module is connected to the embedded touch screen industrial computer. It ensures the safety of the power distribution room and prevents danger from happening.

Description

A distribution substation operation status monitoring and safety early warning device

technical field

The patent of the invention relates to an operation state monitoring and safety early warning device of a power distribution substation, which belongs to the field of intelligent monitoring of substations.

Background technique

The distribution substation (distribution room) is located at the end of the power grid, which is directly related to the normal life of residents and social stability. Therefore, it is of great significance to ensure the safe and stable operation of the distribution room. With the improvement of society's requirements for power supply reliability and the construction of smart grids, these distribution substations need to improve the level of operation automation, but there are a large number of these substations, and the cost of configuring multiple devices according to the hub substation monitoring method is too high. At present, power distribution Substations are generally unattended. These distribution substations have not been paid attention to when they are designed. Generally, there are no dedicated communication channels and monitoring systems have not yet been configured. Distribution substations are geographically scattered, numerous in number, and operating in a complex environment. Although the voltage level is low, the burden of periodic inspections of such substations is getting heavier and heavier. Due to insufficient inspections or too long inspection intervals, it has become a potential safety hazard in the power grid. most parts. To sum up, it is imperative to deeply analyze the problems existing in distribution operation, maintenance and management, develop and install a suitable monitoring and early warning analysis system, and improve the reliability and automation of distribution substation operation. Carrying out the research on the operation status monitoring and safety early warning system of distribution substation has important engineering practical value.

Contents of the invention

The invention provides an operation state monitoring and safety early warning device of a power distribution substation, which solves the technical problems that the real-time monitoring of the substation is not in place and the early warning is not timely.

The present invention solves the above technical problems through the following technical solutions:

A set of power distribution substation operation status monitoring and safety early warning device patented by the present invention, including SF6 gas transmitter, temperature and humidity sensor, sound sensor, infrared motion sensor, voltage current power sensor, ion smoke sensor, on-site acquisition module, on-site sound sensor Light alarm, embedded touch screen industrial computer, SMS module, monitoring terminal; the SF6 gas transmitter, temperature and humidity sensor, sound sensor, infrared motion sensor, voltage and current power sensor, ion smoke sensor are connected to the on-site acquisition module; The on-site sound and light alarm is connected with the on-site acquisition module; the on-site acquisition module is connected with the embedded touch screen industrial computer; the embedded touch screen industrial computer is connected with the short message module; the short message module is connected with the remote monitoring computer or the mobile phone of the operation manager connected.

A set of power distribution substation operation status monitoring and safety early warning device patented by the present invention can monitor various parameters of the substation through the monitoring terminal, and give real-time alarms to fire, illegal intrusion, abnormal operation faults and hidden dangers. The electrical parameter measurement accuracy is 0.4%, and the SF6 gas content can be detected up to 2ppm; the system can also perform intelligent analysis, and record various parameter operation data in the form of historical curves to ensure the safety of the power distribution room and prevent danger.

The invention has the following advantages: it can monitor various parameters of the substation, and alarm in real time for fire, illegal intrusion, glass breakage, abnormal operation faults and hidden dangers, and send them to the staff's mobile phone or monitoring server in time. The system can perform intelligent analysis, and record various parameter operating data in the form of historical curves, which can be queried by category. After the application of the system, the reliability of power supply can be greatly improved, and the economic and social benefits are very obvious.

Description of drawings

Fig. 1 is the device connection system diagram of the patent of the present invention;

Fig. 2 is the physical diagram of the device connection of the patent of the present invention;

Fig. 3 is a schematic structural diagram of the data acquisition module of the patent of the present invention.

detailed description

The present invention is described in detail below in conjunction with accompanying drawing:

A set of power distribution substation operation status monitoring and safety warning device patented by the present invention, including SF6 gas transmitter 1, temperature and humidity sensor 2, sound sensor 3, infrared movement sensor 4, voltage current power sensor 5, ion smoke sensor 6, On-site acquisition module 8, on-site sound and light alarm 7, embedded touch screen industrial computer 9, short message module 10, monitoring personnel mobile phone 11, monitoring terminal 12; the SF6 gas transmitter 1, temperature and humidity sensor 2, sound sensor 3, Infrared mobile sensor 4, voltage current power sensor 5, ion smoke sensor 6 are connected with on-site acquisition module 8; described on-site sound and light alarm 7 is connected with on-site acquisition module 8; described on-site acquisition module 8 is connected with embedded touch screen industrial computer 9 Connection; the embedded touch screen industrial computer 9 is connected with the short message module 10; the short message module 10 is connected with the remote monitoring computer 12 or the mobile phone 11 of the operation manager.

Preferably, the sulfur hexafluoride gas transmitter 1 should be installed as close as possible to the equipment containing sulfur hexafluoride, so as to monitor the operation status of the equipment in real time. The sulfur hexafluoride gas transmitter contains a sulfur hexafluoride gas sensor. This method is characterized by high sensitivity and is not affected and interfered by other gases and the environment. The error is very small, no false alarm will be generated, the leakage can be found in time, and the response is quick;

Preferably, the temperature and humidity sensor 2 should be installed as far as possible in a place where the air is ventilated and the sunlight is out of direct sunlight, so as to obtain indoor temperature and humidity changes in time. After the temperature and humidity sensor 2 collects the temperature value and humidity value in the air, the data collector 8 processes and converts it into a digital signal, and then transmits it to the industrial computer 9. The industrial computer 9 will analyze and compare to determine whether it exceeds the threshold, and then determine whether to send Alarm signal and signal to staff;

Preferably, the sound sensor 3 should be installed on the door or window of the distribution room to monitor the sound signal from the door and window in real time. When the window glass of the distribution room is broken or the door is pried open, the acoustic signal sensor will collect a relatively large sound pressure level signal, which will be processed by the data collector 8 and converted into a digital signal, and then transmitted to the industrial computer 9 . The industrial control machine will analyze and compare to determine whether there is man-made damage, and then determine whether to send an alarm signal and send a signal to the staff;

Preferably, the infrared motion sensor 4 should be installed at the entrance of the power distribution room, and it is only sensitive to the movement or motion of the human body, but not to the stationary human body. When someone invades illegally, it can send an alarm in time and send a signal to the staff ;

Preferably, the voltage, current and power sensor 5 should be installed at the position of the incoming line knife switch, circuit breaker, incoming and outgoing busbar, etc., to monitor the switch positions of the incoming line knife switch, circuit breaker, etc., the voltage, current and power of the incoming and outgoing busbar, etc. , to judge the status of substation power failure, overvoltage, overcurrent fault and overload;

Preferably, the ion smoke sensor 6 should be installed in the position where the smoke may pass, such as the upper end of the window, the ceiling above the equipment, etc., so that the sensitivity of the sensor can be guaranteed. The ion smoke sensor 6 is based on the principle of the ion adsorption of the smoke to the air The measurement is carried out, and then processed by the data collector 8 and converted into a digital signal, and then transmitted to the industrial computer 9 . The industrial computer 9 will analyze and compare to determine whether the threshold is exceeded, and then determine whether to send an alarm signal, and send a signal to the staff;

Preferably, the short message module 10 is connected with the remote monitoring computer 12 or the mobile phone 11 of the operation manager through the network or GPRS.

The above embodiments are only used to illustrate the technical solution of the present invention, rather than limiting it, and the manufacturer and model used for the sensor are not specified; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art It should be understood that: under the premise of not departing from the concept of the present invention, various improvements and modifications made by those skilled in the art to the present invention should be within the scope of protection of the present invention, and the technical solutions claimed by the present invention, Everything is described in the claims.

Claims (5)

1. distribution substation monitoring running state and a safety early warning device, is characterized in that: comprise SF6 gas transmitter, Temperature Humidity Sensor, sound transducer, infrared sensor, electric current and voltage power sensor, ion Smoke Sensor, collection in worksite module, acoustic scene light crossing-signal, Embedded Touch Screen industrial computer, SMS module, monitor terminal; Described SF6 gas transmitter, Temperature Humidity Sensor, sound transducer, infrared sensor, electric current and voltage power sensor, ion Smoke Sensor and collection in worksite model calling; Described acoustic scene light crossing-signal and collection in worksite model calling; Described collection in worksite module is connected with Embedded Touch Screen industrial computer; Described Embedded Touch Screen industrial computer is connected with SMS module; Described SMS module is connected with remote monitoring computer or operational management people mobile phone.

2. a kind of distribution substation monitoring running state according to claim 1 and safety early warning device, is characterized in that: described data acquisition module comprises processor, AD conversion and amplifying circuit.

3. a kind of distribution substation monitoring running state according to claim 1 and safety early warning device, it is characterized in that: described collection in worksite module is RS485 interface or CAN interface, various KingView software, PLC system can be connected, form distributed data acquisition system.

4. a kind of distribution substation monitoring running state according to claim 1 and safety early warning device, is characterized in that: described Embedded Touch Screen industrial computer has intellectual analysis and warning function on monitoring parameter basis.

5. a kind of distribution substation monitoring running state according to claim 1 and safety early warning device, is characterized in that: described SMS module is connected with remote monitoring computer or operational management people mobile phone by network or GPRS.