Where is power transformer testing done? The BAIJIAN testing platform will develop a power transformer testing plan based on customer needs, conduct testing and analysis on designated items of samples according to relevant standards, and issue authoritative and effective power transformer testing reports
Testing standards:
GB/T 1094.6-2011 Power Transformers Part 6: Reactors
Scope of application:
This part of GB1094 is applicable to the following reactors:
- Shunt reactors - Series reactors, including current limiting reactors, neutral grounding reactors, power control reactors, motor starting reactors, and arc furnace series reactors
- Filter (tuning) reactor
- Capacitor damping reactor
- capacitor discharge reactor - Grounding transformer (neutral point coupler)
- Arc suppression coil
- High voltage direct current transmission and industrial smoothing reactors Except for the following reactors:
- single-phase reactors with rated capacity less than 1kvar and three-phase reactors with rated capacity less than 5kvar
- Various specialized reactors, such as high-frequency line arresters or reactors installed on railway vehicles If there are no corresponding standards for small reactors or specialized reactors, all or part of this section may apply
Reference standards:
GB1094.1-1996 Power Transformers - Part 1: General (eqvIEC60076-1:1993)
GB1094.2 Power Transformers - Part 2: Temperature Rise (GB1094.2-1996, eqvIEC60076-2:1993)
GB1094.3-2003 Power Transformers - Part 3: Insulation Level Insulation testing and external insulation air gap (eqvIEC60076-3:2000)
GB/T1094.4-2005 Power Transformers - Part 4: Guidelines for Lightning Impulse and Switching Impulse Testing of Power Transformers and Reactors (IEC60076-4:2002, MOD)
GB1094.5-2008 Power Transformers - Part 5: Ability to withstand short circuits (IEC60076-5:2006, MOD)
GB/T1094.7 Power Transformers - Part 7: Load Guidelines for Oil Immersed Power Transformers (GB/T1094.7-2008, IEC60076-7:2005, MOD)
GB/T1094.10-2003 Power Transformers - Part 10: Determination of Sound Level (IEC60076-10:2001, MOD)
GB1094.11-2007 Power Transformers - Part 11: Dry Type Transformers (IEC60076-11:2004, MOD)
GB/T4109 Insulating Bushings for AC Voltages Above 1000V (GB/T4109-2008, IEC60137:2003, MOD)
GB/T4797.7 Classification of Environmental Conditions for Electrical and Electronic Products - Natural Environmental ConditionsFunction 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