Darui Electric recommends:
I. Overview:
The dry-type test transformer features light weight, small size, attractive appearance, stable performance, and easy portability, making it especially suitable for on-site operations. It is a new generation of AC/DC dual-purpose high-voltage test transformer in China. This series of products is applicable for on-site testing of insulation performance of various electrical equipment in power systems and for various power users, as well as for high-voltage power sources in various voltage systems or devices requiring DC high voltage and small current.
II. Structure:
This series of transformers utilizes advanced production equipment, adopting new processes such as epoxy vacuum casting of coil windings and CD-type iron cores. Compared with similar oil-immersed transformers, they significantly reduce weight and volume, improve insulation strength and moisture resistance, and effectively reduce magnetic flux leakage.
III. Technical Specifications:
1. Impedance voltage: 12%
Dry-type test transformer
2. Output voltage waveform: power frequency, sine wave
3. Surface temperature rise: <55℃
4. No-load loss: 0.2%~0.35%
5. Allowable continuous operation time: 1 hour
6. Intermittent operation time: continuous
Note: The above information and technical parameters are compiled and released by Yangzhou Darui Electric Co., Ltd.
