Oil circuit breakers include both multi oil circuit breakers and low oil circuit breakers, and their regular testing items are as follows:
Firstly, measuring insulation resistance during pilot testing
Measuring insulation resistance is a basic test in circuit breaker testing, measured with a 2500V megohmmeter 2. Measure the dielectric loss factor tg of non pure ceramic bushings and multi oil circuit breakers of 40.5KV and above δ。 Measure the tg of non pure ceramic bushings and multi oil circuit breakers at 40.5KV and above δ， The main purpose is to check the insulation condition of the casing, as well as other insulation components such as the fox extinguishing chamber, insulation rod, oil tank insulation shield, and insulation oil
Third, the pilot holding company measures the leakage current of 40.5KV and above low oil circuit breakers (including air circuit breakers)
Due to the measurement of tg of low oil circuit breakers and air circuit breakers δ Unable to effectively detect insulation defects, measuring leakage current is one of the important items for low oil circuit breakers and compressed air circuit breakers of 40.5KV and above. It can sensitively detect the serious damage to insulation strength on the surface of circuit breakers
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