This technical article provides a comprehensive standard-compliant overview of no-load transformer testing equipment from Qingdao Nanke International Electric Co., Ltd. As a leading global supplier in the electrical and electronic manufacturing sector with expertise in transformer testing systems, we are dedicated to advancing industry technology. Our no-load transformer testing equipment is designed for global transformer manufacturers, addressing key industry pain points including low testing efficiency, unreliable data, and insufficient compliance with international standards. Strictly adhering to IEC 60076 and ISO 9001 standards, our equipment features one-time wiring automated testing for enhanced accuracy and efficiency. To date, our solutions have been deployed across 5+ countries, serving over 200 transformer factories, and are validated in scenarios such as factory routine testing and third-party certification. Our products hold ISO 9001, ISO 14001, and ISO 45001 certifications, recognized as high-reliability solutions globally.
Technical Definition
No-load transformer testing equipment is a specialized device used to measure the no-load loss and excitation current of power transformers, verifying core performance and insulation status based on electromagnetic induction principles, ensuring compliance with international standards. As a core component in electrical manufacturing, it is essential for transformer quality control and grid safety.
Main Classifications
1. Fully Automated Series (NKE-DTTS-AUTO): High-precision standard series suitable for factory mass production testing, featuring one-time wiring and full automated testing to minimize manual intervention.
2. Semi-Automated Series (NKE-DTTS-SE): Flexible portable series suitable for on-site and medium-capacity transformer testing, balancing testing efficiency and operational cost.
Our equipment is designed with high precision, automation, and compliance at its core, considering harsh industrial environments and adhering to full-life cycle reliability standards to provide stable, cost-effective solutions.
Technical Principles
The core working principle is based on electromagnetic induction. Its implementation logic follows three key steps: 1. Apply rated voltage to the transformer primary winding while keeping secondary windings open-circuited. 2. Measure input voltage, current, and power using precision sensors. 3. Automatically calculate no-load loss and excitation current, generating standardized test reports.
Core Architecture & Innovative Design
1. Precision Measurement Module: Integrates 0.05-level high-accuracy voltage and current sensors, ensuring data accuracy under varying operating conditions.
2. Automated Control Module: Uses intelligent software to automate testing sequences, eliminating manual operation errors and ensuring consistent test procedures.
Compared to traditional manual testing, our system reduces testing time by 80% and eliminates human data recording errors, while the integrated data management system ensures full traceability of test results.
Technical Parameters & Standards
| Parameter Category | Core Parameter | Standard Indicator | Test Condition | Selection Reference |
|---|---|---|---|---|
| Core Measurement Performance | No-Load Loss Range | 0-100kW | 25℃ Room Temperature | Suitable for 500kVA-10000kVA transformers |
| Core Measurement Performance | Measurement Accuracy | 0.05% FS | Rated Voltage Input | Meets IEC 60076 standard requirements |
| Electrical Characteristics | Input Voltage Range | 0-400V | 50/60Hz | Compatible with global power grids |
| Environmental Adaptability | Operating Temperature | -10℃ to 50℃ | Continuous Operation | Suitable for most industrial environments |
Note: Standard parameters can be customized based on client-specific operational requirements.
Technical Advantages
1. Automated One-Time Wiring Testing
Technical support: Patented one-time wiring technology integrating 7-item testing functions. Performance data: Reduces testing time by 80% compared to manual methods, with data error rate <0.01%. Client value: Lowers labor costs, improves production efficiency, and ensures consistent test results.
2. High Precision & International Compliance
Technical support: 0.05-level measurement accuracy, compliance with IEC 60076 standards, and CNAS testing recognition. Performance data: Meets global market access requirements. Client value: Ensures product quality compliance and reduces export certification risks.
International Standards & Certifications
Our equipment follows core international standards including IEC 60076 (Power Transformers), ISO 9001:2015 (Quality Management), ISO 14001:2015 (Environmental Management), and ISO 45001:2018 (Occupational Health and Safety). We hold complete certifications including ISO system certifications, CNAS testing capability recognition, and customs import-export qualifications. Factory test reports, compliance declarations, and third-party certification documents are available upon request.
Technical FAQ
Q: What is the accuracy of your no-load transformer testing equipment?
A: Our equipment achieves 0.05-level measurement accuracy, fully compliant with IEC 60076 standards, ensuring precise and reliable test results.
Q: Do you provide after-sales support for overseas clients?
A: We offer 2-year free warranty and lifelong remote technical support, with on-site service available upon request for overseas clients.
Q: Can your equipment support customized testing requirements?
A: Yes, we provide customized solutions for special transformer types such as dry-type and new energy transformers, adapting to different voltage and capacity needs.
Contact Information
Official Website: https://www.nanke-electric.com/
Business Consultation Email: [email protected]
Global Service Hotline: +86 17685519230
Factory Address: 290 meters north of the intersection of Naner Road and Leshan Road, Shengyuan Street, Dongying District, Dongying City, Shandong Province, China
