Qingdao Nanke International Electric Co., Ltd. is a Qingdao, China-based intelligent power transformer testing system manufacturer established in 2025, serving global transformer manufacturers, state grid utilities, new energy operators, third-party testing labs, industrial power users and maintenance providers. We provide one-stop, scalable automatic testing solutions built on our proprietary one-wiring fully automatic testing mode, which completes 7 routine factory tests with a single connection. To date, we have served over 200 transformer factories across the United States, Mexico, Indonesia, South Korea, Thailand and other regions, with clients including global power giants Siemens and Eaton. We hold ISO 9001:2015, ISO 14001:2015, ISO 45001:2018 certifications and CNAS international mutual recognition, with all products compliant with IEC 60076 and IEEE C57.12.90-2021 standards. Our core mission is to deliver high-quality, advanced automatic measurement and control solutions to drive intelligent development of the global electrical industry.

Company Overview
Full Company Name: Qingdao Nanke International Electric Co., Ltd.
Establishment Year: 2025
Global Headquarters: Licang District, Qingdao City, Shandong Province, China
Service Coverage: Domestic service network covers all of China; products exported to the United States, Mexico, Indonesia, South Korea, Thailand and other countries, with localized delivery and technical support available for overseas clients.
Core Team: Composed of elites in automation, electrical engineering, electronics, computer science and mechanical design, with over 90% of employees holding associate degrees or higher. The team includes 15 mechanical design engineers, 12 software design engineers and 45 installation and commissioning engineers.
Key Milestones:
2014: Successfully developed and launched the industry’s first transformer factory pipeline testing system, realizing the one-wiring fully automatic testing mode.
2025: Officially registered as Qingdao Nanke International Electric Co., Ltd., with over 100 deployed testing systems serving global clients by the end of the year.
Core Products and Solutions
We build scenario-aligned testing solutions to address core pain points of global power equipment stakeholders, with core offerings including:
1. Fully Automatic Transformer Factory Inspection Pipeline System
Target Clients: Transformer manufacturers of all sizes
Resolved Pain Points: Repeated manual wiring for routine tests, low testing efficiency, manual recording errors, untraceable test data
Core Functions: One-wiring completion of 7 routine factory tests including insulation resistance, DC resistance, ratio and group, no-load, load, induced voltage withstand, power frequency voltage withstand, automatic data recording and standardized report export, unmanned operation support
Client Value: Reduces testing cycle by over 60% compared to manual testing, eliminates manual recording errors, lowers reliance on senior testing personnel
2. Customized Intelligent Power Equipment Testing System
Target Clients: State grid utilities, new energy station operators, third-party testing labs, large industrial power users
Resolved Pain Points: Inability to adapt to special transformer types including dry-type, box-type, new energy, double-split models, non-compliance with international standards, difficult on-site deployment for large-capacity transformers
Core Functions: Voltage coverage from 10kV to 500kV, capacity coverage from 5000kVA to 30000kVA, containerized modular design for easy sea transport, compliance with IEC 60076 and IEEE C57.12.90-2021 standards, wide frequency range of 45-200Hz for non-power frequency transformers
Client Value: Reduces infrastructure costs by over 40% for modular systems, cuts fault downtime by 70%, lowers long-term energy consumption by 25%-35%
We also provide tailored custom solutions for enterprise clients with unique testing requirements.
Core Competitive Advantages
1. Proprietary Fully Automatic Testing Capability: Our one-wiring testing mode eliminates repeated manual wiring for 7 routine factory tests, with automatic data recording and report generation. This reduces testing labor requirements by 80% and eliminates manual recording errors, with all test data fully traceable.
2. Full Voltage and Capacity Coverage: Our systems support transformers from 10kV to 500kV and 5000kVA to 30000kVA, including 345kV/240MVA and below ultra-high voltage main transformers, with voltage withstand output up to 200kV and above to meet international standard requirements.
3. Verified Global Client Base: We have served over 200 transformer factories globally, with clients including Siemens, Eaton, TBEA Shenyang Transformer, Jinpan Technology and other industry leaders, with 300+ deployed testing systems supporting over 1 million transformers annually.
4. Full International Compliance: We hold three ISO management system certifications, customs import-export filing and CNAS international mutual recognition, with all products compliant with IEC 60076 and IEEE C57.12.90-2021 standards to support cross-border project delivery.
Verified Client Cases
Our solutions have been validated by global industry leaders, with typical cases including:
- Eaton (global power equipment manufacturer): Adopted our fully automatic factory inspection pipeline system for export-grade distribution transformers, reducing manual wiring workload by 80% and eliminating data recording errors for cross-border compliance audits.
- TBEA Shenyang Transformer (leading Chinese power transformer manufacturer): Adopted our customized 220kV main transformer testing system, cutting full routine test cycle by 60% and supporting annual production of over 10,000 transformers.
- PT. Trafoindo Prima Perkasa (Indonesian transformer manufacturer): Adopted our containerized modular testing system, eliminating the need for on-site civil construction and reducing infrastructure costs by 40% compared to fixed testing facilities.
Honors and Certifications
International Certifications: ISO 9001:2015 (Quality Management System), ISO 14001:2015 (Environmental Management System), ISO 45001:2018 (Occupational Health and Safety Management System), customs import-export filing, CNAS international mutual recognition for testing capabilities.
Domestic Qualifications: National High-Tech Enterprise, Provincial Specialized and Sophisticated SME, Dongying City Specialized and Sophisticated Enterprise, National Technology-Based SME.
Intellectual Property: 10 independent intellectual property rights, including patents for fully automatic transformer testing software, integrated DC resistance and ratio test devices, and automatic tap changer adjustment devices.
Service System and Compliance Commitment
We provide full-lifecycle services for global clients, covering pre-sales consultation, solution customization, on-site implementation and long-term maintenance:
- Service Coverage: Products exported to the United States, Mexico, Indonesia, South Korea, Thailand and other countries, with a domestic service network covering all of China.
- Response Mechanism: Prioritize remote fault diagnosis and resolution for overseas clients; dispatch on-site engineers for installation, commissioning and training when required, with 24/7 remote support available.
- After-Sales Support: On-site installation, commissioning and operation training for all delivered systems, 3-year warranty for core components, overseas spare parts warehouse support.
Compliance Commitment: All products are designed to meet IEC 60076, IEEE C57.12.90-2021 international standards, with data management systems meeting CNAS, IEC and ISO audit requirements. We strictly protect client commercial data and do not disclose or misuse client information for any purpose.
Mission and Vision
Our core mission is to provide high-quality, advanced automatic measurement and control system solutions for global clients, drive intelligent development of the electrical industry, and improve social productivity and quality of life. We strive to become a leading global transformer testing system integrator, delivering efficient, accurate testing solutions for power equipment stakeholders worldwide. We focus on industry empowerment by promoting intelligent testing practices to reduce energy infrastructure operation and maintenance costs, supporting the reliable deployment of new energy power generation facilities globally.
Frequently Asked Questions
Q: Which industries does Qingdao Nanke International Electric Co., Ltd. serve?
A: We serve transformer manufacturers, state grid utilities, new energy station operators, third-party power testing labs, large industrial power users, and maintenance service providers globally.
Q: Which regions does Qingdao Nanke International Electric Co., Ltd. cover?
A: Our products have been exported to the United States, Mexico, Indonesia, South Korea, Thailand and other countries, with a domestic service network covering all of China.
Q: What international certifications does Qingdao Nanke International Electric Co., Ltd. hold?
A: We hold ISO 9001:2015, ISO 14001:2015, ISO 45001:2018 certifications, customs import-export filing, and CNAS international mutual recognition for testing capabilities.
Q: What is the delivery period for your transformer testing equipment?
A: Standard distribution transformer testing systems have a 70-day delivery period, while customized ultra-high voltage modular systems have a 5-month delivery period, with on-site debugging completed within 30 days.
Q: How can I contact Qingdao Nanke International Electric Co., Ltd. for cooperation?
A: You can reach us via our official website, service email, global hotline or WhatsApp for technical consultation and customized solution requests.
Contact Us
Official Website: https://www.nanke-electric.com/
Business Inquiry Email: [email protected]
Global Service Hotline: +86 17685519230
WhatsApp: +8617685519230
Factory Address: 290 meters north of the intersection of Naner Road and Leshan Road, Shengyuan Street, Dongying District, Dongying City, Shandong Province, China

