I. Project Overview
Zhejiang ZhiDian Amorphous Electrical Co., Ltd. (Quzhou ZhiDian Amorphous) was established in 2009 and is a national-level high-tech enterprise, a specialized, refined, distinctive, and innovative SME in Zhejiang Province, and a technology-based SME. The company holds 47 transformer-related patents, 2 software copyrights, and 99 industry qualification certificates, regularly participates in domestic power procurement projects, and has a mature production, supply, and project-support system.
The company’s core products are amorphous alloy oil-immersed distribution transformers, which feature lower no-load losses and significant energy-saving benefits compared to conventional silicon steel transformers; it also produces dry-type transformers, packaged substations, corrugated oil tanks, and complete sets of high- and low-voltage equipment. The company independently masters the entire production process for amorphous transformers, has developed its own parametric design software, and provides dedicated tooling for core stacking and coil winding. Its products are widely used in grid renovation, residential area distribution, factory power supply, photovoltaic integration, and rural grid energy-saving upgrades.
The company’s flagship product is the 10kV amorphous alloy distribution transformer, characterized by low no-load losses, quiet operation, stable temperature rise, and long-term continuous operation. It complies with national policies on energy-efficient distribution and is suitable for urban and rural grids as well as various industrial and commercial distribution projects.
Nanke Electric has equipped this company with a 35kV fully automated distribution transformer testing system, capable of meeting all factory acceptance test requirements. Services include equipment customization, site layout planning, on-site installation and commissioning, and hands-on operator training—covering the entire process.
II. Maximum Testing Capabilities
High-voltage side voltage: 10kV, 35kV
Low-voltage side voltage: 0.4kV and below, 1.14kV and below
Capacity range: 3150kVA and below, 5000kVA and below
Impedance range: 4–8%, 6–10%
III. Test Items
(1) Measurement of transformer no-load loss and no-load current
(2) Calculation of transformer no-load current percentage
(3) Measurement of transformer no-load harmonics
(4) Measurement of transformer load loss and conversion to standard temperature
(5) Measurement of transformer short-circuit impedance and conversion to standard temperature
(6) Transformer induced withstand voltage test
(7) Transformer power-frequency withstand voltage test
(8) Transformer temperature-rise test
IV. Project Highlights
(1) Fully automated integrated testing simplifies the testing process: the 35kV fully automated distribution transformer testing system features an integrated automatic control architecture that allows automatic switching between test items with a single wiring connection, eliminating the need for repeated disconnection and reconnection procedures typical of traditional equipment, reducing manual operations, and supporting large-scale factory quality inspections.
(2) Comprehensive test coverage compliant with industry standards: the equipment includes multi-dimensional tests for no-load, load, insulation withstand voltage, and temperature rise, enabling completion of factory acceptance tests for 10kV and 35kV oil-immersed, dry-type, and amorphous alloy transformers, aligning with current industry testing standards.
(3) Automated data collection and conversion reduces human error: the system collects all test data in real time and automatically performs standard temperature conversions for load loss and short-circuit impedance, eliminating data deviations caused by manual readings and calculations, making the test data directly usable for quality inspection records and report generation.
(4) Broad test parameter coverage compatible with multiple product specifications: with a maximum test voltage of 35kV and comprehensive testing ranges for voltage, capacity, and impedance, the equipment can meet both the current batch quality inspection needs for 10kV amorphous transformers and support future R&D testing of new 35kV products.
(5) One-stop implementation services to build an independent quality inspection platform: Nanke Electric provides integrated services including equipment supply, workshop layout planning, installation and commissioning, hands-on training, and after-sales maintenance, helping companies establish their own testing laboratories and enhance internal quality control systems.
V. Commissioning Information
Client Company: Zhejiang ZhiDian Amorphous Electrical Co., Ltd.
Commissioning Date: June 2026
