Distribution automation technology is an important technology serving the transformation and construction of urban and rural distribution networks. Distribution automation includes feeder automation and distribution management systems, and communication technology is the key to distribution automation. China has conducted many pilot projects in distribution automation, and the three-layer structure composed of distribution main stations, sub stations, and feeder terminals has been widely recognized. Fiber optic communication as the communication method of the backbone network has also gained consensus. The implementation of feeder automation can also be fully based on fiber optic communication, which enables feeder terminals to quickly communicate with each other and jointly achieve higher performance feeder automation functions. Distribution Automation System (DAS) is an automation system that enables distribution enterprises to monitor, coordinate, and operate distribution equipment in real-time from afar. It forms a Distribution Management System (DMS) together with Distribution Network Data Acquisition and Monitoring (SCADA system), Distribution Geographic Information System (GIS), and Demand Side Management (DSM). Power automation is divided into functional categories: 1. Dispatching automation: divided into national dispatching, regional dispatching, provincial dispatching, local dispatching, and county dispatching. It is used to dispatch and command the power generation and transmission of substations and power stations, achieving automated management. 2. Substation comprehensive automation: divided into on-site monitoring and control of 500KV0KV0KVKV level substations, and transmitting data to the dispatching automation system. 3. Distribution automation: automatic management of monitoring and control of the distribution network of the urban 10KV system, Optimize the urban distribution network structure, manage electricity usage reasonably and efficiently, timely predict accidents and handle faults. 4. Distribution automation [1]; For the automation management of power distribution equipment for end users such as factories/buildings, improve the reliability of power distribution system operation, achieve early warning of accidents, improve work efficiency, and achieve the goal of economic operation
Function of testing report:
1. Project bidding: Issue authoritative third-party CMA/CNAS qualification report
2. Online e-commerce platform entry: Quality inspection report recognized by major e-commerce platforms 3. Used as a sales report: issuing legally effective testing reports to make consumers more confident 4. Papers and research: Provide professional personalized testing needs 5. Judicial services: providing scientific, fair, and accurate testing data 6. Industrial problem diagnosis: Verify the troubleshooting and correction of industrial production problemsBaijian and testing process:
1. Telephone communication and confirmation of requirements
2. Recommend solutions and confirm quotations 3. Mail samples and arrange testing 4. Progress tracking and result feedback 5. Provide reports and after-sales service 6. If urgent or priority processing is requiredTesting and testing characteristics:
1. The testing industry is fully covered, meeting different testing needs
2. Fully cover the laboratory and allocate localized testing nearby3. Engineers provide one-on-one services to make testing more accurate
4. Free initial testing, with no testing fees charged
5. Self service order delivery for free on-site sampling
6. Short cycle, low cost, and attentive service 7. Possess authoritative qualifications such as CMA, CNAS, CAL, etc 8. The testing report is authoritative and effective, and is generally used in China