Baijian Testing is a third-party testing agency that provides enterprises with relevant CNAS, CMA, CAL and other qualification certification testing reports. We always take the enterprise as the first and customer as the center, carry out testing work under strict procedures, provide customers with product testing and quality control solutions, and wholeheartedly provide scientific and scientific inspection, research and development analysis services for our customers

Testing process

1. Sending samples

2. Checking requirements

3. Targeted quotation

4. Both parties confirm, sign a contract, and start the experiment

5. Completing the experiment: The testing cycle (can be expedited) may change according to the sample and its testing items/methods, and engineers can be consulted

6. Issuing the testing report and providing post service.

Testing items:

Partial parameters, all parameters, winding to ground insulation resistance, short-circuit impedance and load loss measurement, no-load current and no-load loss measurement, winding resistance measurement, partial discharge measurement, sound level measurement, external withstand voltage test, induced withstand voltage test, temperature rise test, voltage ratio measurement and connection group label verification, short circuit withstand capacity test, no-load loss and no-load current measurement, winding to ground and winding to winding DC insulation resistance measurement.

, Lightning impulse test, all items, nameplates, measurement of no-load loss and no-load current, primary and secondary lead connection terminals, DC resistance imbalance rate, hydraulic transformer pressure sealing test, installation positioning holes, sound level measurement, operating temperature monitoring device, grounding signs, insulation resistance, marking, packaging, operation and storage, protective signs to prevent direct contact, protective layer, lifting device

Testing standards:

1 GB/T 1094.1-2013 Power Transformers Part 1: General Provisions 11.1.4

2. GB/T 32825-2016 Technical Parameters and Requirements for Three Phase Dry Solid Core Distribution Transformers GB/T 32825-2016

3. GB/T 32825-2016 Technical Parameters and Requirements for Three Phase Dry Solid Core Distribution Transformers

4. GB/T 32825-2016 Technical Parameters and Requirements for Three Phase Dry Solid Core Distribution Transformers

100% Inspection and Testing Process:

1. Telephone communication Confirm 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 required