Distributed remote management of distribution room environment

Power supply in rainy season for building plum trees “** network ”

Encore Cui Yuanhang

Preface

Every year, 5 Since the end of the month, the middle and lower reaches of the Yangtze River in China have entered the plum rain season , The whole country will also have a long rainy period 、 Obvious rainy season with concentrated rainfall , Many enterprises also use electricity for a wide range of rainy seasons ** To publicize and popularize information about flood control 、 flood prevention 、 Basic knowledge of lightning protection and electricity, etc ** Common sense of electricity , Improve the staff's ideological understanding of the importance of flood control work and their ability to fight and reduce disasters . With the technological upgrading and innovation of the power industry and intelligent sensors , Take intelligent control as the core , Through the integrated application of Internet of things technology , The realization of state monitoring and intelligent control of indoor environment has been widely used . From the actual use at this stage , The integrated monitoring system in the power distribution room is mature and stable 、 Strong compatibility and expansibility 、 High function integration 、 Advantages of convenient operation , Reduce the labor cost of traditional power operation and maintenance , Ensure the safety of maintenance personnel **.

keyword ： Electricity in rainy season 、 Intelligent control 、 Integrated monitoring of power distribution room 、 Electricity operation and maintenance

1. The design scheme of traditional power distribution room monitoring system

Due to the development of digital technology, the traditional power distribution room is not successful , The designed solution is to install their own on-line monitoring devices and alarm systems for various types of electrical equipment , Independent video surveillance system , Independent security , Independent access control 、 Water immersion 、 Gas monitoring and other systems , But these systems have the following problems ：

1、 Many data acquisition devices and monitoring devices are not networked , Only personnel can be arranged to monitor and control regularly ;

2、 Most networked systems operate independently , Form the monitoring system of each subsystem “ Isolated island ” The phenomenon , Unable to manage information interaction , Can't reach ** The actual effect of management . When the distribution room adopts monitoring equipment and monitoring systems from multiple manufacturers , Because the monitoring systems of various manufacturers are incompatible , There is no unified interface , The number of systems to be used and maintained by relevant personnel is more and more complex ;

3、 The coexistence of multiple systems not only increases the investment cost , The later maintenance cost also increases greatly , And the equipment and systems of multiple manufacturers run at the same time , There will also be unclear responsibilities , Increase the communication time and energy of the owner ;

4、 With the technological upgrading and innovation in the power and energy industries , The equipment and systems in the distribution room will be more complex , At the same time, the operating environment and equipment status of the distribution room are becoming more and more important for the overall control of the distribution room .

The operation of power distribution room is at the core of information exchange management , This requires all equipment in the power distribution room to operate normally all the time , Once a device fails , For data transmission 、 Storage and system operation pose a threat , Will affect the overall situation , If it can't be dealt with in time , More likely to damage hardware equipment , The economic losses caused are immeasurable .

1. Design scheme of integrated monitoring system for intelligent power distribution room

The intelligent distribution room integrated monitoring system is based on the Internet of things technology , Realize the query of various monitoring data 、 analysis 、 Early warning and comprehensive display , To ensure the environment of the power distribution room **. In the aspect of intelligence, realize the telemetry of power supply and distribution monitoring system 、 Telesignaling 、 Remote control , Carry out comprehensive detection and unified management of the system , Improve work efficiency , Saving human resources .

The system can access various sensors and controllable equipment , Collect data through the communication layer and forward it to other systems as required . The overall solution product has multiple choices for different application scenarios , among Acrel 2000E/G It's the size of a standard power cabinet , Wide application scenarios , The system is powerful , Environmental parameters can be monitored （ Temperature and humidity 、SF6 Gas 、 Smoke sensation 、 infrared 、 Water immersion, etc ）, Linkage control part of the equipment （ Fan 、 Water pump 、 Air conditioner 、 Dehumidifier, etc ）, It can also be connected to the access control and security system 、 Video monitoring system .

2.1 Sensor configuration scheme

Temperature and humidity sensor 75 Within square meters 2 individual ,75-100 Square meters with 3 individual ,100 More than square meters with 4 individual , Installed on the back or side of the operation area of the distribution cabinet , According to the ground 1m about , Try to avoid the air outlet of the air conditioner ;

SF6 The sensor is configured according to the demand, which is easy to happen SF6 Where it leaked , Usually installed on the wall behind the cabinet , According to the ground 10-20cm;

The water immersion sensor shall be equipped at the place where the incoming and outgoing lines of the cable trench in the distribution room are connected 1 only , The probe is away from the ditch bottom 1-5cm, The detector is under the cover plate 5cm It's about , If it's an underground power distribution room , The sensor is installed on the inlet wall , The probe is above the ground 1-5cm, The detector is above the ground 1m above ;

The smoke sensor is ceiling mounted , It is generally installed above the cabinet , Each row 10 If it's on the left and right of the face cabinet 3 about ;

In the control subsystem, the remote controller of the air conditioner is installed near the air conditioner , lighting 、 Exhaust air 、 The control contact of the water pump is connected to the corresponding controller ;

The access control system includes access controller 、 Card reader 、 Magnetic lock 、 Open the door button , The card reader is installed outside the door , From the ground 1.2-1.4m It's about , The door opening button is installed in the floor 1.2-1.4m It's about ; The magnetic lock is generally installed in the middle of the door frame ;

Double detector is configured at the door of each power distribution room 1 only , Installed on the wall inside the door , Height from ground 2m about ;

Video surveillance subsystem includes camera and hard disk video recorder , The video recorder is placed in the cabinet , The camera is freely configured according to the layout of the power distribution room , Guns are generally used to monitor the entry and exit of people at the door , Ball machines are mostly used to monitor panorama , The installation is generally away from the ground 2m about ;

2.2 System monitoring control function

The man-machine interface of the integrated monitoring system in the distribution room is friendly , It can display the operation status of the equipment in the distribution room , Monitor the environmental parameter information of the distribution room in real time , Video frequency 、 temperature 、 humidity 、 Water leakage / Water immersion 、 The water level 、 Harmful gases and electrical parameters , Real time display of relevant faults 、 Alarm and other information .

2.3 System linkage function

The input and output quantity in the system is accessed through the remote signaling and remote control unit equipment . among K1-K8 Is the input quantity , It can be connected to the signal of water immersion sensor ,J1-J8 Is the output , The start and stop of water pump can be controlled by circuit design . There is water in the cable trench in the distribution room in rainy season , As well as rainwater pouring due to lax sealing of outdoor trench cover , The drainage of cable trench is unfavorable during design and construction , This leads to long-term water accumulation at the back of indoor and outdoor cable trenches. The water immersion sensor alarms , The system starts the drainage pump according to the alarm , Ensure the electrical in the power distribution room **, After the flooding alarm is eliminated , The water pump can stop automatically , While realizing the intellectualization of the system , Improve the efficiency of operation management .

summary

The integrated monitoring system of distribution room takes intelligent control as the core , Through the integrated application of Internet of things technology , To realize the status monitoring and intelligent control of the environment in the distribution room . For electricity consumption in rainy season ** situation , The system realizes environmental data monitoring and equipment control , It plays a role in preventing the operation failure of distribution equipment caused by abnormal operation environment , Ensure the safety of maintenance personnel **, Prolong the service life of the equipment , The distributed remote management of distribution room environment is realized , Electricity for construction in rainy season “** network ”.