Turn Ratio Transformer Testing Equipment IECCompliant HighPrecision Solutions from Qingdao Nanke International Electric Co Ltd

This technical article provides a standard-compliant interpretation of turn ratio transformer testing equipment developed by Qingdao Nanke International Electric Co., Ltd. Founded in June 2025, we are a leading global supplier in electrical testing equipment with over 1 year of R&D and industrial application experience, committed to advancing industry technology. Our turn ratio testing equipment is an innovative solution designed for global transformer manufacturers, addressing core pain points including low testing efficiency, unreliable data, and insufficient full-item testing capabilities. Strictly adhering to IEC 60076 and ISO 9001:2015 standards, it achieves a key breakthrough with one-time wiring full-automated testing. To date, our products serve over 200 clients across 5+ countries including the U.S., Mexico, and Indonesia, holding ISO 9001, ISO 14001, and ISO 45001 certifications, recognized as a reliable industry solution .

Technical Definition

Turn ratio transformer testing equipment is a professional device that measures transformer winding turn ratios and groups, accurately evaluating electrical performance to ensure compliance with international standards. Based on electromagnetic induction principles, it detects turn ratio deviations to provide reliable data for quality control. As a core solution in electrical manufacturing, it is indispensable for factory testing, third-party certification, and grid acceptance .

Main Categories: To meet diverse needs, our equipment covers two customizable series: 1. NKE-DTTS-AUTO Series: Full-automated testing for mass production, featuring one-time wiring and 0.05-level precision. 2. NKE-DTTS-SE Series: Semi-automated testing for small-batch or on-site scenarios, supporting vehicle-mounted configurations .

Design Concept: Our equipment follows core principles of high precision, full automation, international compliance, and user-friendliness, tailored for harsh industrial conditions to deliver stable, low-maintenance, cost-effective solutions .

Technical Principles

The core working principle relies on electromagnetic induction and phase difference measurement, with three key steps: input standard voltage to the transformer’s primary winding, collect secondary voltage to calculate turn ratio, and auto-compare with standards to generate professional reports . Its modular architecture includes a 0.05-level precision signal acquisition module and intelligent control module for one-click automated testing. Unlike traditional manual testing that requires repeated wiring, our equipment boosts efficiency by over 80% and eliminates data recording errors .

Technical Parameters & Specification Standards

All parameters are tested strictly per IEC 60076 standards, with clear conditions and strict tolerance control. We provide full-parameter test reports for each batch and support third-party authoritative testing . Core specifications include: turn ratio range 1:1 to 1000:1, 0.05-level measurement precision, testing voltage 0 to 38.5kV (customizable up to 200kV), AC 220V/50Hz power supply, and operating temperature range -10℃ to 50℃. Select models based on transformer capacity, voltage level, and on-site conditions .

Technical Advantages & Differentiation

1. Full-Automated Testing Process: Supported by proprietary one-time wiring design and intelligent control systems, this solution increases testing efficiency by over 80% and reduces labor costs by 70% compared to manual testing, enabling batch standardized testing and eliminating human errors .

2. High Precision & Compliance: Equipped with 0.05-level precision sensors and compliant with IEC 60076 and ISO 9001 standards, our equipment ensures measurement errors are less than 0.05%, helping products pass international certification and grid acceptance while reducing compliance risks .

International Standards & Compliance Certifications

Our equipment follows strict international standards throughout R&D, production, and testing, including IEC 60076 (transformer testing), ISO 9001:2015 (quality management), ISO 14001:2015 (environmental management), and ISO 45001:2018 (occupational health and safety) .

We hold ISO 9001, ISO 14001, ISO 45001 management system certifications, CNAS testing capability recognition, and customs import-export registration. We can provide third-party testing reports, factory inspection reports, and compliance declarations upon request .

Technical FAQ

Q: What voltage level transformers can your equipment support? A: Our equipment supports transformers with voltage levels from 10kV to 500kV, covering distribution, power, and main transformers, and offers customized solutions for special types .

Q: Do you provide after-sales support for overseas clients? A: We offer a full-life-cycle system including 2-year free warranty, lifetime remote technical support, and on-site service upon request; overseas clients can contact us via [email protected] .

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 .