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I. Project Overview Wuhan Jinpan Intelligent Technology Co., Ltd., established on December 15, 2016, specializes in the R&D and manufacturing of high-end power equipment products for new energy, new infrastructure, rail transit, smart grids, and ...
Wuhan Jinpan Intelligent Technology Co., Ltd., established on December 15, 2016, specializes in the R&D and manufacturing of high-end power equipment products for new energy, new infrastructure, rail transit, smart grids, and major infrastructure engineering projects. The company adopts a quality management model that integrates digital manufacturing with performance excellence management, and boasts modern standardized workshops, digital production lines, and R&D office buildings. Leveraging 5G networks, the company implements intelligent management of its park-wide internet and IoT infrastructure.
Its core products include dry-type transformers for wind power and rail transit applications, 35kV medium-to-high voltage cascade energy storage systems, as well as Scott and auto transformers. To meet the factory testing requirements of various transformer products while improving testing efficiency and accuracy, the company has established a dedicated dry-type energy-saving intelligent test station. Nanke Electric's Super Automatic Distribution Transformer Test System was selected to build a one-stop comprehensive transformer testing platform, fully covering all test items across multiple transformer categories and achieving intelligent, energy-saving, and standardized upgrades in transformer testing.
| Transformer Type | Voltage & Capacity | Impedance |
|---|---|---|
| Distribution Transformer | 10, 35 / 0.23, 0.4, 0.69, 1 kV; Capacity ≤ 10,000 kVA | 4% – 12% |
| Excitation Transformer | 22 / 0.85, 0.95, 1.05 kV; Capacity ≤ 10,000 kVA | 6 – 8% |
| Rectifier Transformer | 35, 10 / 0.59 / 1.18 kV; Capacity ≤ 3,300 kVA | 6 – 10% |
| Polysilicon Transformer | 10 / 0.2‑3 kV; Capacity ≤ 10,000 kVA | 4 – 8% |
| Power Transformer | 35, 10 / 10.5, 6, 3.3 kV; Capacity ≤ 35,000 kVA | 8 – 12% |
1. Routine Tests
(1) Winding resistance measurement
(2) Voltage ratio measurement and connection group symbol verification, phase shift angle measurement
(3) Insulation resistance measurement
(4) Applied voltage withstand test (power-frequency dielectric test)
(5) No-load loss and no-load current measurement
(6) Short-circuit impedance and load loss measurement
(7) Induced voltage withstand test
(8) Partial discharge measurement (three-phase measurement and single-phase grounded measurement)
(9) Dielectric dissipation factor (tan δ) measurement
(10) Secondary circuit test
2. Type Tests
(1) Temperature rise test
(2) Sound level measurement
(3) Zero-sequence impedance measurement
(4) Commutation reactance measurement
(5) Applied voltage withstand test (power-frequency dielectric test)
(6) Lightning impulse withstand test
(1) Multi-Category Equipment Compatibility Testing
Leveraging its robust testing capabilities, the system precisely accommodates full-category equipment testing for distribution transformers, excitation transformers, rectifier transformers, polysilicon transformers, power transformers, and more. It covers the company's core products including dry-type specialty transformers and new energy-dedicated transformers, meeting the product testing standards for new energy, rail transit, and energy storage equipment across multiple scenarios—fully aligning with Jinpan's diversified product matrix and the comprehensive testing requirements of this dry-type energy-saving intelligent test station.
(2) One-Time Wiring Fully Automatic Test Solution
The system completes all transformer test items with just one-time wiring, covering winding resistance, insulation resistance, no-load loss, load loss, induced voltage withstand, applied voltage withstand, and other tests. The equipment is fully controlled by computer programs that automatically execute tests, perform data computation and analysis, and generate complete factory test reports upon completion—all in a fully automated workflow that simplifies operations, reduces manual errors, and significantly improves testing efficiency.
(3) Full Test Coverage with Dual-Scenario Adaptability
The system simultaneously performs both routine tests and type tests, delivering comprehensive factory quality inspection and R&D validation for transformers in a single platform. It meets the dual-core needs of new product R&D iteration and batch factory inspection.
(4) Deep Compatibility with Digital Smart Factories
The system seamlessly integrates with the company's smart park management system. All test data is automatically archived and traceable, perfectly aligning with the customer's digital manufacturing and refined quality management production model, thereby enabling the successful operation of this energy-saving intelligent test station.
Commissioning Date: April 2023
EN
