Product Details

Product Structure
The core of the high-voltage test transformer is a single-frame type. The coil adopts a concentric cylindrical multi-layer tower structure. The primary low-voltage winding is wound on the core, and the secondary high-voltage winding is wound outside the low-voltage winding. This coaxial arrangement reduces coupling loss between windings. The product shell is made into an octagonal structure that fits well with the core, and the overall appearance is beautiful and generous.

Technical Indicators
1. Operating environment conditions
The ambient temperature is not higher than +40℃ and not lower than -20℃; the relative humidity of air is not greater than 90%; the altitude does not exceed 3500 meters;
2. Working voltage  The input voltage of the power control box (console) is industrial frequency 220V or 380V, with a relative error not exceeding ±10%; (the specific voltage used is selected according to the user's specified test transformer specifications)

Product Introduction
     The power frequency AC withstand voltage test complete set is based on the similar YDJ type high-voltage test transformer, and is produced after improvement according to the requirements of the national standard DL/T848.2-2004 for test transformers. Compared with similar YDJ type products, this series has the characteristics of small size, light weight, compact structure, and convenient transportation. It is suitable for power, industrial and mining, scientific research and other departments to conduct power frequency withstand voltage tests on various high-voltage electrical equipment, electrical components, and insulating materials. It is an indispensable instrument in high-voltage testing.
Working principle of the power frequency AC withstand voltage test complete set. The power frequency AC withstand voltage test complete set is a single-phase transformer with connection group label II. The working process of a single test transformer: AC 380V voltage is connected to the power control console, and through the auto-transformer (external for above 50KVA) inside the power control console, the voltage is adjusted from 0~400V to the primary winding of the high-voltage test transformer. According to the principle of electromagnetic induction, the required high voltage for the test can be obtained on the high-voltage winding of the test transformer.