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

Triple Frequency Generator - Yangzhou Darui

Published: 2020-08-26 09:14:52

Category: Induction Withstand Voltage Test Device

Product Description

Triple Frequency Generator

Darui Electric recommends for you:

Triple Frequency Generator for Power Transformers, voltage transformers and other test objects, 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.

Purpose Edit

SBF adopts a three-core five-column structure, selecting the working magnetic flux density of the iron core above the saturation magnetic density, so that the vector sum of the fundamental electromotive force (positive sequence vector) in the secondary winding connected in an open delta is zero, and the two ends of the open delta output the same phase 150Hz third harmonic (zero sequence).

Characteristics Edit

Simple operation, reliable performance, can well meet the needs of induced withstand voltage tests for transformers and互感器.

Working Principle Edit

Adopting power electronics technology, the internal core part uses a frequency conversion regulator. Parameter presetting, protection settings, frequency selection, voltage regulation control, etc. Adopting touch operation mode, can preset test frequencies of 50Hz, 100Hz, 150Hz, 200Hz (optional), touch mode to adjust voltage (step size can be adjusted in real time, select 1V, 2V, 5V, 10V), can achieve multi-frequency test voltage output of this device.

Built-in LC filter circuit ensures that the waveform distortion rate is within the specified range.

Due to abandoning the traditional three-phase five-column triple frequency generator principle, the following advantages are brought:

1. Small size, light weight, easy to carry, easy to achieve high power.

2. Not only can generate triple frequency, but also can generate 1, 2, 3, 4 times frequency test voltage output.

3. Simple operation and wiring, greatly reducing the requirements for on-site test power supply capacity [2] .

Configuration Table Edit

Model

DF3003

DF3005

DF3010

DF3015

Output Power

3kVA

5kVA

10kVA

15kVA

Output Frequency

45HZ-300HZ frequency continuously adjustable, adjustment step 0.1HZ. (Frequency adjustment range can be customized)

Output Voltage

0V-400V sine wave, continuously adjustable, adjustment step 0.1V. (Voltage output range can be customized)

Waveform Distortion Rate

Pure sine wave, distortion rate ≤2%

Output Isolation

Input and output completely isolated, isolation voltage not less than AC3kV, 1min

Output Voltage Stability

Automatic voltage stabilization, voltage stability ≤1%

Minimum Voltage Resolution

0.1V

Minimum Current Resolution

0.01A

Measurement Accuracy

+-0.5%

Instrument Weight

20Kg

15+25Kg

18+30Kg

20+33Kg

Note: The above information and technical parameters are compiled and released by Yangzhou Darui Electric Co., Ltd.

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Product Details

Triple Frequency Generator - Yangzhou Darui