Triple Frequency Generator - Yangzhou Darui - Yangzhou Darui Electric Co., Ltd.

Triple Frequency Generator - Yangzhou Darui

Published: 2020-07-11 16:58:02

Category: Triple Frequency Generator

Product Description

Triple Frequency High Voltage Generator

The triple frequency generator is used for testing objects such as power transformers and voltage transformers. In addition to performing external power frequency high voltage tests on the main insulation of fully insulated transformers, it is also necessary to conduct induced high voltage tests on the longitudinal insulation of transformers and the main insulation of semi-insulated transformers. According to test standard requirements, the induced test voltage for power transformers and voltage transformers is generally considered to be 2-3 times the working phase voltage. As is well known, when a transformer operates at rated frequency and rated voltage, the iron core is close to saturation. If a test voltage higher than the rated voltage is applied across the windings of the transformer under test using a power frequency power supply, the no-load excitation current will increase sharply to an unacceptable level. From the relationship of induced electromotive force, it can be seen that in order to apply a test voltage higher than the rated voltage without saturating the iron core, the method of increasing the power supply frequency can be adopted, and a generator with a frequency greater than the power frequency must be used.

Detailed Introduction

Product Introduction

The triple frequency generator is used for testing objects such as power transformers and voltage transformers. In addition to performing external power frequency high voltage tests on the main insulation of fully insulated transformers, it is also necessary to conduct induced high voltage tests on the longitudinal insulation of transformers and the main insulation of semi-insulated transformers. According to test standard requirements, the induced test voltage for power transformers and voltage transformers is generally considered to be 2-3 times the working phase voltage. As is well known, when a transformer operates at rated frequency and rated voltage, the iron core is close to saturation. If a test voltage higher than the rated voltage is applied across the windings of the transformer under test using a power frequency power supply, the no-load excitation current will increase sharply to an unacceptable level. From the relationship of induced electromotive force, it can be seen that in order to apply a test voltage higher than the rated voltage without saturating the iron core, the method of increasing the power supply frequency can be adopted, and a generator with a frequency greater than the power frequency must be used.

Usage Conditions

     1. Working power supply: Three-phase 380V/50Hz

     2. Ambient temperature: -25°C to 55°C

     3. Altitude: not exceeding 4000 meters

Technical Parameters

     1. Working power supply: Three-phase AC 380V ±10%, 50Hz

     2. Rated capacity: 3KVA-30KVA (according to user selection)

Model Specification

Rated Capacity (KVA)

Input Voltage (V)

Input Current (A)

Output Voltage (V)

Output Current (A)

Output Frequency (Hz)

Weight (kg)

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Product Details

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