Structure and Function of Cascade-Type Partial Discharge-Free Power Frequency Test Transformer


Manufacturers of motors, transformers, instrument transformers, insulating materials, and related high-voltage components, as well as high-voltage laboratories in power utilities, research institutions, and universities, can use this equipment for partial discharge and power frequency withstand voltage tests on their products. It complies with relevant standards such as DL417-91, JB/T9641-1999, GB1094.1~1094.5-85, and GB6451.1~6451.5-86.



The complete set of equipment for the partial discharge-free power frequency test transformer (cascade type) system mainly consists of nine parts:

Partial discharge detector, calibration pulse generator, input unit, power frequency partial discharge-free test transformer, protective resistor, coupling capacitor, control console, voltage regulator, and power isolation filter.



The partial discharge-free power frequency test transformer (cascade type) is mainly used to test the insulation level of various insulating materials, insulation structures, and electrical products against power frequency voltage. It also serves as a partial discharge-free power frequency test power source for test objects such as transformers, instrument transformers, and arresters. It is widely used in electrical manufacturing departments, power operation departments, research institutions, and universities.

    The 50-1200KV partial discharge-free power frequency test transformer has leading domestic technical performance and reaches the advanced level of similar international products.



Partial discharge-free power frequency test transformer (cascade type) Features:



    1. The complete equipment has strong configurability, complete voltage and capacity series, and comprehensive functions.

    2. Successfully developed a partial discharge-free epoxy insulating cylinder with low partial discharge level.

    3. Low impedance voltage, better than national standard requirements.

    4. Adopts automatic control technology, high automation degree, and strong anti-interference capability.

    5. Uses fast electronic protection devices with high reliability.