The battery pack is an independent and reliable operating power source that is not affected by AC power, and can still ensure continuous and reliable operation even in the event of a power outage or bus short circuit in the entire factory. The battery voltage is stable and the capacity is large. It is not only suitable for various complex relay protection and automatic devices, but also for the transmission of various circuit breakers. Therefore, large enterprise substations commonly use battery packs as operating power sources. However, battery pack operating power requires many auxiliary equipment and dedicated rooms, with high investment, short service life, long construction time, complex operation, and high maintenance workload, Therefore, in small and medium-sized substations, battery packs are generally not used as operating power sources, and rectifier type DC operating power sources or AC operating power sources are often used
Installation of battery packs
The installation position of small photovoltaic power generation system batteries should be as close as possible to the solar cells and controllers; For medium and large photovoltaic power generation systems, it is best to separate the battery from the controller, inverter, and AC distribution cabinet. The installation location should ensure good ventilation, convenient drainage, and prevent high temperatures. The ambient temperature should be kept between 10-25 ℃ as much as possible
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