Introduction
Recently, a quality inspection engineer from one of our client companies visited our production and testing facility to conduct a factory acceptance test (FAT) for our three-phase oil-immersed transformers, including the supervision of a lightning impulse test.
Specification
| Rated capacity(KVA) | 700 | Method of cooling | ONAN |
| Vector group | YNd11 | Frequency(Hz) | 60 |
| Rated voltage(kV) | 13.2/ 0.48 | Rated current (A) | 30.62/ 841.97 |
| Tape range of HV (%) | ±2 x 2.5% | Insulation level(kV) | HV-LI 75/ LV-LI 30 |
Manufacturing
Material Preparation
Core Processing
Coil Winding
Insulation & Assembly
Vacuum Impregnation
Final Assembly & Wiring
Testing
Packaging
During the inspection, the client's representative performed a detailed examination of the transformers-covering external dimensions, cooling structures, and sealing techniques-and expressed satisfaction with both the test data and our manufacturing processes.
Subsequently, our technical team, strictly adhering to established operational protocols, carried out the lightning impulse test on the three-phase oil-immersed transformer. Under the client's observation, the unit successfully withstood the high-voltage stress simulating a lightning strike. The intelligent testing system in the control room recorded the data in real time, confirming that all parameters met both national standards and the client's specific requirements.
This successful acceptance test highlights VKE's professional expertise in transformer manufacturing and validates the consistent quality and reliability of our products. From coil winding to final assembly, VKE remains committed to superior product quality as the cornerstone of our development. We implement rigorous quality control across every stage of production, ensuring that every three-phase oil-immersed transformer leaving our factory offers excellent insulation performance and high short-circuit withstand capability, making them well-suited for diverse power grid operating environments.
One-stop power solutions Factory in China
Jiangsu VKE Transformer Co., Ltd. welcomes clients to visit our facility and witness our production and testing processes firsthand.
We look forward to collaborating with our partners to expand the power market by providing reliable products and professional services.