Contactor is a device that generates a magnetic field through the current flowing through the coil, causing the contact to close and thus controlling the load. Contactors are divided into AC contactors (voltage AC) and DC contactors (voltage DC), which are applied to power, distribution, and electric field integration. If we broadly speaking, it refers to industrial electricity that uses the current flowing through the coil to generate a magnetic field, causing the contact to close, To achieve load control of electrical appliances, it can be said that contactors are composed of electromagnetic systems and contact systems
1. Testing items for contactors:
Electromagnetic strength, coil testing, resistance value, high temperature resistance test, low temperature resistance test, magnetization strength, reliability test, aging test, weather resistance test, service life test, etc
Secondly, testing standards for contactors:
GB/T 8871-2001 AC contactor energy-saving devices GB/T 14808-2016 High voltage AC contactors, contactor-based controllers, and motor starters GB/T 17885-2016 Electromechanical contactors for household and similar purposes GB 21518-2008 Energy Efficiency Limits and Energy Efficiency Grades for AC Contactors GB/Z 22200-2016 Reliability Test for Small Capacity AC Contactors GB/Z 22201-2016 Reliability Test for Contactor Relay GB/T24975.4-2010 Guidelines for Environmental Design of Low Voltage Electrical Appliances - Part 4: Contactors GB/T 30215-2013 General Requirements for Aircraft Electromagnetic Relays and Contactors AS 60470-2001 High voltage AC current contactors and engine elicitors based on current contactors AS/NZS3947.4.3-2000 Low voltage switchgear and controllers - Part 4.3: Contactors and motor starters
III. Contactor detection process:
1. Consult the communication department staff and submit the detection requirements.
2. Send samples to our laboratory. (Determine the experimental plan and provide a quotation based on the type of experiment and customer needs)3. Both parties shall determine 4. Sign a confidentiality agreement to strictly protect customer privacy 5. Arrange the experiment and begin the experiment 6. Complete the experiment, organize the data, and issue a testing report 7. Mail the report
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