An AC motor with the same rotation direction of the rotor and stator magnetic field. The relationship between the rotor speed n, the number of magnetic poles p, and the power frequency f satisfies n=60f/p. The speed n is determined by the power frequency f, so when the power frequency is constant, the speed remains unchanged and is independent of the load. It has the characteristics of high operational stability and large overload capacity. Commonly used in multi machine synchronous transmission systems, precision speed regulation and stability systems, and large equipment such as steel rolling mills. Synchronous motors belong to AC motors, and the stator winding is the same as asynchronous motors. Its rotor rotation speed is the same as the speed of the rotating magnetic field generated by the stator winding, so it is called a synchronous motor. Due to this, the current of a synchronous motor is ahead of the voltage in phase, meaning that the synchronous motor is a capacitive load. Therefore, in many cases, synchronous motors are used to improve the power factor of power supply systems
Structure
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