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Rated Capacity: 3000 kVA
Output Frequency: 45–200 Hz, fully continuously adjustable to meet the frequency requirements of various test conditions, including load loss, no-load loss, and induced overvoltage tests.
Output Voltage Range: 0.1 kV – 6 kV, with high voltage regulation accuracy and extremely low waveform distortion.
Built-in Protection: Multiple hardware-level protections including harmonic suppression, overcurrent, overvoltage, and overtemperature.
Quantity: 1 set
Capacity: 5000 kVA
Voltage Ratio: 6 kV / (2 × 23) ± 8 × 2 kV
Tapping Switch: Three-phase off-circuit (no-load) tap changer on the high-voltage side, offering multiple precise voltage regulation positions to accommodate test objects with various voltage ratings.
Flexible Configuration: Supports flexible switching between three-phase series and parallel connections, allowing capacity expansion to meet higher-power testing requirements.
Quantity: 1 set
Total Compensation Capacity: 107,460 kvar
Rated Voltage: 12 – 72 kV, with stepped switching to accommodate different reactive power compensation levels.
Connection Configuration: 6-string star connection; freely switchable between single-phase and three-phase modes.
Switching Method: Fully computerized, program-controlled automatic switching, providing real-time matching of test reactive power to improve power supply utilization and reduce grid-side load.
Quantity: 1 set
Accuracy Class: 0.01 (metering-grade ultra-high precision)
Current Range: 10 – 2000 A
Insulation Withstand Voltage: 120/√3 kV, 3 kV
Performance Control: Tight control over temperature drift, phase angle error, and ratio error, ensuring compliance of loss and temperature rise test data with traceability standards.
Quantity: 3 sets
Accuracy Class: 0.01 (metering grade)
Voltage Range: Multi-range switching covering 10–120/√3 kV, 100/√3 kV, and 3 kV.
Operation: Stable operation across a wide temperature range, meeting high-precision acquisition requirements for withstand voltage, turns ratio, and no-load tests.
Quantity: 3 sets
🟦 Product Introduction
Designed for full-scale testing of large power transformers up to 345kV/240MVA, covering HV/EHV main transformers, wind power, photovoltaic, and special transformers. Modular and integrated for flexible indoor/outdoor deployment. Shipped in five 40-foot containers for convenient sea and land transport – ideal for new overseas test stations or retrofitting existing laboratories.
🟦Product Positioning
Revolutionizing traditional discrete test stations with five core highlights: containerized prefabrication, rapid delivery, outdoor operability, fully intelligent control, and ultra-high precision. Significantly reduces infrastructure costs, shortens time-to-production, ensures stable accuracy, expands test sample coverage, and lowers operational energy consumption. The benchmark choice for transformer manufacturers and third-party labs worldwide.
🟦Deployment & Delivery
On-Site Layout: Modular zoning with HV/LV and power/control isolation, plus reserved safety walkways. Customizable one-to-one layout design; integrated control cabinet for data acquisition and industrial control.
Transportation & Packaging: Shipped in five 40-foot high-cube containers. Pre-assembled and factory-tested before disassembly and packing. Vibration-damping, moisture-proof, and anti-rust treatment inside – suitable for long-distance ocean transport.
Operating Environment: Ready for immediate use indoors or outdoors. Outdoor modules come with built-in rain, sun, and dust protection – no civil works or equipment room modifications required.
🟦Variable Frequency Power Supply
🟦Intermediate Transformer
🟦High-voltage Compensation Capacitor
🟦Precision Current Transformer
🟦Precision Voltage Transformer
🟦Delivery Lead Time: 5 Months
Full in-house industry chain with modular component stocking. From contract signing to shipment in just 5 months – far below the industry average of 8–12 months.
🟦 On-Site Commissioning: 1 Month
Containerized prefabricated modules arrive ready for installation – only foundation, cable connection, and grounding required. Factory engineers provide turnkey on-site commissioning and training, enabling independent testing within 30 days.
🟦Modular Structural Design
Space-saving: Building-block assembly with independently separable modules. Old labs can expand without demolition; future upgrades require no system replacement.
Full Outdoor Deployment: IP protection + adaptive temperature/humidity control for stable operation in extreme environments. Eliminates factory building and air conditioning costs – saves over 40% on infrastructure.
Easy Maintenance: Single-module faults can be repaired independently without affecting other test stations. Fault downtime reduced by 70%.
🟦 Fully Computerized Intelligent Control & Measurement
One-stop Integration: Single host computer controls power supply, tap changer, capacitors, and transformers. One-click start for all test items.
Data Compliance: Automatic report generation with built-in GB/IEC standards. Tamper-proof data meets CNAS/IEC/ISO audit requirements.
Multi-level Safety Interlocks: Dual software+hardware protection – instantaneous trip on overvoltage, overcurrent, breakdown, or ground fault. Access control + infrared intrusion detection prevents accidents.
🟦Accuracy & Performance
Class 0.01 Metering Precision: Internationally recognized test reports – meets export transformer type test certification requirements.
Wide Frequency & Voltage Range: 45–200Hz covers power frequency main transformers and non-power frequency wind/PV transformers. One system compatible with everything from distribution transformers to 240MVA EHV main transformers.
Dynamic Energy Saving: Automatic reactive power compensation reduces grid incoming capacity demand. Long-term test energy consumption reduced by 25%–35%.
🟦Global Service
Adapts to overseas grid standards (345kV etc.). Drawings and manuals available in English, Spanish, and Arabic.
3-year warranty on core components. Overseas spare parts warehouse. 24/7 remote software support.
Shipped with third-party metering calibration certificates and type test reports – meets acceptance requirements of regulatory authorities worldwide.
| Comparison Dimension |
Traditional Main Transformer Test Station |
NKE Modular Automatic Power Transformer Test System |
| Equipment Form | Discrete Layout: high-voltage capacitors, transformers, test hall, voltage regulators, and other independent equipment require separate placement. Requires a second-floor platform for capacitor towers and transformer measurement. | Highly Integrated: high-voltage capacitors, precision transformers, high-voltage dividers, and control units are fully integrated into standard containers. Factory-integrated and shipped as a complete system. Plug-and-play on site – no need for separate platform construction. |
| Installation Cycle | Long: requires civil works, laboratory construction, equipment foundation pouring, capacitor tower erection, and on-site connection and commissioning of multiple pieces of equipment. Typical cycle: 60–90 days. | Extremely Short: factory pre-assembled and fully commissioned before shipment. On-site work only involves positioning, cable connection, and power-up. Ready for testing within 30 days. |
| Footprint | Large: requires dedicated high-voltage test hall (minimum 500 m² floor area), high-voltage safety isolation zone, and capacitor tower footprint – low space utilization. | Compact: integrated cabinet design occupies only 1/2 to 1/3 of the space required by traditional solutions. No dedicated high-voltage hall needed – can be arranged in ordinary factory buildings or open sites as long as safe test distance conditions are met. |
| On-Site Construction Difficulty | High: Involves civil works, steel structure, heavy lifting of HV equipment, multi-system integration, and HV safety fencing. Complex coordination with many risk points. | Extremely Low: Complete system is transported and positioned in one go. No major civil works required. |
| Safety Risks | High: Many exposed high-voltage connections, complex on-site wiring, frequent manual reconnections. High risk of electric shock, falls from height, or equipment damage due to wiring errors. | Safe Isolation: High-voltage sections are fully enclosed within containers. The live areas are physically isolated from the control/operation area. Software interlocking prevents human operational errors. |
| Construction & Operation Costs | High: High costs for civil works, laboratory construction, equipment purchase, and long-term maintenance. Decentralized equipment requires many spares and is difficult to maintain. | Low Total Lifecycle Cost: Reduces or eliminates the need for a high-voltage test hall and civil works. Integrated design results in a lower failure rate, simpler maintenance, and unified spare parts, significantly reducing long-term operating costs. |
| Environmental Adaptability | Poor: Sensitive to temperature, humidity, dust, and electromagnetic interference. | High Adaptability: Containerized design provides excellent dust and moisture protection. Stronger resistance to electromagnetic interference. |
| Expandability & Relocation | Fixed & Not Relocatable: The test hall and capacitor towers are permanent structures, making relocation difficult. Expansion requires new civil works and equipment. | Relocatable & Easily Expandable: The complete system can be craned and relocated as needed. Modular design allows for on-demand expansion of voltage levels and test items by adding modules. |
| Overall Cost / Total Investment | High | Significantly Lower Total Investment (for the same configuration/specification). |
