The research and development of smart grids that highlight self-healing functions in protection and control systems is the latest trend in the development and transformation of the world's power system, and a major technological innovation and development trend in the 21st century's power system; The smart grid will achieve informatization, digitization, automation, and interactivity of the power grid. The integrated technology of protection and control for ultra-high voltage and ultra-high voltage power grids is the key to achieving a strong and intelligent power grid. The integration of large-scale random energy sources and their flexible control have also brought new challenges to the protection and control of intelligent distribution stations. In the protection and control system, some basic knowledge is involved, such as relay protection devices, relay classification, current quick break protection, time limited current quick break protection, etc. The hierarchical protection control system is an optimization of the protection control system
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