This part of GB/T 10230 specifies the terms and definitions of tap changer, usage conditions, technical requirements for on load tap changer, technical requirements for electric mechanism of on load tap changer, technical requirements for non excitation tap changer, technical requirements for electric mechanism of non excitation tap changer, nameplate, warning label of non excitation tap changer, and manufacturer's user manual. This section is applicable to resistive and reactive on-load tap changers, non excitation tap changers, and their electric mechanisms. This section is applicable to tap changer immersed in mineral insulating oil in accordance with GB 2536. If the conditions are suitable, it can also be applied to gas insulated or tap changer immersed in other insulating liquids. This section is mainly applicable to on-load tap changer with live arc contacts. If conditions are applicable, it can also be applied to on-load tap changer without arc (such as electronic conversion). This section is applicable to tap changers for all types of power transformers, distribution transformers, and reactors. This section does not apply to tap changers for traction transformers and traction reactors, and tap changers for capacity regulating 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