Shandong Tailai Electric Co., Ltd. and Qingdao Nanke International Electrician Co., Ltd.

2026/04/29 20:08:20 Case

【Introduction】This project is a fully automatic intelligent transformer testing system customized by Nanke Electric for Shandong Tailai Electric Co., Ltd., which is committed to the fields of new energy and smart grid, and holds multiple certifications such as Three Systems, PCCC, and CCC, as well as power construction qualifications. It is specially designed for the customer’s core transformer production lines, including 35kV oil-immersed/dry-type step-up transformers and 10kV distribution transformers, to realize full-process automation of testing, high-precision data acquisition, and standardized report output, thereby efficiently optimizing the quality inspection process and improving the detection efficiency of the production line.

【Keywords】 35kV oil-immersed transformers, dry-type step-up transformers, and 10kV distribution transformers

I. Maximum Testing Capacity

High Voltage: 69.3 kV, Low Voltage: 6.3–10.5 kV

Capacity: Oil-immersed three-phase transformers up to 20,000 kVA

Frequency: 50/60 Hz

Impedance: 4%–18% and below

II. Test Items

1. Transformer insulation resistance test, dielectric loss test

2. Transformer DC resistance test

3. Transformer turns ratio and winding connection group test

4. Transformer no-load loss and no-load current measurement; optional automatic testing at 90%, 100%, and 110%

5. Calculation of transformer no-load current percentage, transformer no-load harmonic measurement,

6. Transformer load loss measurement and standard temperature conversion, transformer short-circuit impedance measurement and standard temperature conversion

7. Transformer induced voltage withstand test, transformer power-frequency withstand test,

8. Transformer temperature rise test

III. Project Highlights

(1) High compatibility with core products: Customized matching for 35 kV step-up transformer testing needs, aligning with product characteristics in the new energy and smart grid fields.

(2) Comprehensive coverage of test items: Integration of insulation, electrical parameters, withstand voltage, temperature rise, and other full-range tests, enabling one-stop completion of transformer performance testing.

(3) Fully automated operation throughout the process: Supports multi-level automatic no-load testing, automatic parameter acquisition, and automatic temperature conversion, significantly shortening the testing cycle.

(4) High-precision data acquisition: Equipped with professional testing instruments, ensuring accurate data with strong anti-interference capability, making test results authoritative and reliable.

(5) On-demand report customization: Test reports can be customized according to customer requirements, with complete data and standardized formats, facilitating archiving and quality traceability.

IV. Commissioning Information

Client: Shandong Tailai Electric Co., Ltd.

Commissioning Date: January 2026

Operating Status: Delivered and commissioned, operating stably, providing professional testing support for the client’s transformer product quality control.