The power metering box is a device used for energy metering in the range of 3~35kV, including a combination transformer (collecting three-phase current and voltage signals), a box, an electricity meter, a lightning arrester, a vacuum circuit breaker (pre paid), etc. The current accuracy is 0.2S, and the voltage accuracy level is 0.2. The model is generally JLSxx xx (x replaces the actual letter) and the combination transformer is basically the same. The relevant standard combination transformer complies with the provisions of the national standard GBl7201-2007 "Combination Transformer"; The current transformer complies with the provisions of the national standard GBl208-2006 "Current Transformers"; The voltage transformer complies with the provisions of the national standard GBl207-2006 "Voltage Transformers"
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