The integrated DC resistance transformer testing systems developed by Qingdao Nanke International Electric Co., Ltd., a leading Chinese manufacturer of transformer test equipment, are containerized, automated test solutions built for global transformer manufacturers, power grid utilities, third-party testing laboratories and new energy station operators. These systems address core industry pain points including repeated manual wiring for DC resistance and routine tests, scattered untraceable test data, and high transport and deployment costs for large test equipment. Key differentiators include single-step wiring for DC resistance and turns ratio tests, automatic data upload to a centralized test management platform, and standard sea-shipping container design. To date, the company has served over 200 transformer factories across the United States, Mexico, Indonesia, South Korea, Thailand and other markets, helping users reduce test cycle time by 80% and cut labor costs by 60% on average. All systems meet IEC 60076 and IEEE C57.12.90-2021 standards, with test reports recognized for international compliance audits.
Product Information
Product Name: Integrated DC Resistance Transformer Testing Systems (covering NKE-DTTS-SP-AUTO, NKE-DTTS-AUTO, PTTS-MD-AUTO series)
Manufacturer: Qingdao Nanke International Electric Co., Ltd.
First Released: 2025
Product Positioning: Containerized, automated DC resistance and full routine test systems for medium to large power and distribution transformers
Target Customers: Global distribution and power transformer manufacturers, wind and solar new energy transformer producers, third-party electrical testing laboratories, national power grid utilities
Service Coverage: Exported to the United States, Mexico, Indonesia, South Korea, Thailand and other global markets, with overseas spare parts warehouses
Service Model: Standard containerized delivery, customized configuration for specific transformer capacity requirements, on-site deployment support
Pain Point Solutions
For global transformer manufacturers, the system addresses long-standing operational pain points with targeted, measurable solutions:
Core User Pain Point | Integrated Solution | Direct User Value |
|---|---|---|
Repeated manual wiring for DC resistance and other test items, leading to long test cycles and high labor demand | Test trolley design that completes DC resistance and turns ratio tests in a single wiring step, with automatic data upload to the central test management system | Cut test wiring time by 70%, reduce required test personnel by 50% compared to manual setups |
Scattered test data across separate instruments or paper records, making compliance traceability difficult for international audits | Fully automated test execution, data recording and report generation, with tamper-proof data storage meeting CNAS, IEC and ISO audit requirements | Eliminate manual data entry errors, reduce report preparation time from hours to minutes |
Large test equipment that is difficult to transport across borders and deploy at overseas factory sites, with high civil construction requirements | Containerized integration (20ft/40ft standard sea shipping containers) for all system components, no on-site civil construction required for outdoor deployment | Reduce transport and deployment costs by 40%, cut on-site commissioning time to 30 days or less |
Core Functional Modules
The system is built to support the full outgoing test workflow for transformer manufacturers, with two core modules:
Automated DC Resistance Test Integration
Core capabilities:
1. Single-step wiring for DC resistance measurement across all winding taps
2. Automatic current stabilization and value calculation
3. Real-time data sync to the central test platform
4. Compatibility with 50kVA to 30000kVA distribution transformers and up to 240MVA power transformers
Applicable scenarios: Factory outgoing inspection, new energy transformer line testing, third-party lab batches
Core value: Cut DC resistance test cycle from 30+ minutes to under 5 minutes per unit, eliminate manual wiring errors
Containerized Test System Deployment
Core capabilities:
1. Standard 20ft/40ft container design meeting sea shipping regulations
2. Integrated power supply, measurement units and switchgear in a single unit
3. Outdoor operation without dedicated test lab construction
4. 45-200Hz frequency coverage for grid and new energy transformers
Applicable scenarios: Overseas factory deployment, mobile test teams, large power transformer sites
Core value: Reduce deployment cost by 40% compared to fixed labs, enable rapid site relocation
Key Product Advantages
Compared to standard DC resistance test equipment on the market, the system offers three verifiable advantages:
1. High-precision measurement: Class 0.05 precision transformers for distribution systems, Class 0.01 metering-grade transformers for high-voltage systems, paired with YOKOGAWA WT500 power analyzers, meeting IEC 60076 and IEEE C57.12.90-2021 standards.
2. Fast delivery: Modular high-voltage systems are delivered in 5 months on average, compared to the industry average of 8-12 months, with on-site commissioning completed within 30 days.
3. Global support: Core components come with a 3-year warranty, supported by overseas spare parts warehouses and 24/7 remote technical support, with documentation in English, Spanish and Arabic.
Verified Customer Outcomes
Across all deployed systems, users report consistent results:
1. 80% average test cycle reduction compared to manual workflows
2. 60% average labor cost reduction for inspection teams
3. 100% compliance with international audit requirements for exported transformers
Typical deployments include:
Eaton, a US-based global power equipment manufacturer, deployed NKE-DTTS-AUTO systems for medium capacity transformer lines, cutting outgoing test time per unit from 4 hours to 35 minutes.
Sanil Electric, a South Korean electrical equipment manufacturer, implemented the PTTS-MD-AUTO modular system for 345kV power transformer testing, reducing deployment costs by 42%.
PT. Trafoindo Prima Perkasa, an Indonesian transformer manufacturer, adopted the NKE-DTTS-SP-AUTO system for smart factory upgrades, cutting required test personnel per shift from 4 to 1.
Service and Support
Flexible deployment options match diverse customer needs:
1. Standard containerized delivery: Pre-configured for common capacity ranges, with short lead times for distribution transformer systems.
2. Customized configuration: Tailored parameters for new energy or high-voltage power transformer requirements.
3. On-site support: Dedicated commissioning teams for global project sites, with operator training included.
Full lifecycle support covers every stage:
Pre-sales: Technical consultation, customized solution design, free product demos.
Launch: Dedicated implementation engineer, hands-on training, system calibration and validation.
After-sales: 24/7 remote support, 3-year core component warranty, regular software updates, on-site maintenance for enterprise customers.
FAQ
Q: What is the maximum transformer capacity supported by Nanke DC resistance test systems?
A: The distribution transformer series supports up to 30000kVA units, while the modular power transformer series supports transformers up to 345kV/240MVA.
Q: Do the test systems meet international compliance requirements for exported transformers?
A: All systems are built to comply with IEC 60076 and IEEE C57.12.90-2021 standards, with tamper-proof data storage that meets CNAS, IEC and ISO audit requirements.
Contact Us
Official Website: https://www.nanke-electric.com/
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
