20 kVA 3 Phase Variac Transformer

5 out of 5 based on 1 reviews | Write a review

$2,156.79

The three phase variable transformer input voltage 380V, output voltage range 0-430V, or 0-500V, rated full bias current 27A, built-in high quality copper transformer coil, sturdy and durable, it is ideal for use in laboratories, factory equipment, foam cutting and household electricity,

Output Voltage *

SKU: ATO-VVR-TH20

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Delivery date: 6-12 days

Overview

20 kVA variac variable transformer for sale, 380V input voltage, increase the design of heat sink holes, making the internal better heat dissipation, increasing the service life.

Specification

Model: ATO-VVR-TH20
Rated Power: 20 kVA
Input Voltage: 380V
Output Voltage: 0~430V, 0~500V
Frequency: 50/60 Hz
Rated Full Offset Current: 27A
Insulation Resistance: ≥5 MΩ
Pressure Resistance: 2000 V/1min
Weight: 60 kg
Dimension: 345mm x 400mm x 580mm
Certificate: CE

Wiring method

Installation and use of three-phase variac transformer should be noted: the wiring must be firmly pressed, there can be no loose.

Three-phase variac transformer is a three-phase four-wire system, the input side should be connected to the zero line, when using the regulator to adjust the voltage should be adjusted from 0V to high voltage, the output voltage is different corresponding to the load power is different.

Variac transformer wiring

Three Phase 20 kVA Variac Transformer Details

Three phase variable transformer details

Three phase variac transformer detail

Tips: What is a thyristor AC voltage regulator?

The AC voltage regulating circuit is often composed of thyristors, which are used to regulate the effective value of the output voltage. Thyristor AC voltage regulators have the characteristics of small size and light weight. The output is an AC voltage, but not a sinusoidal waveform, with large harmonic components and low power factor. AC voltage regulation control commonly used phase control. It enables the thyristor to connect the load to the power supply at the selected moment in each cycle of the power supply voltage, and the purpose of voltage regulation can be achieved by changing the selected moment.

Existing reviews of 20 kVA 3 Phase Variac Transformer

Reliable variac transformer

The details of the variac transformer are well done. The materials are thick. The entire variac transformer can be seen clearly from the cover, the binding posts, the handle, the adjustment knob to the copper coil inside. I bought a three-phase 20kVA voltage regulator , and can lift it together with colleagues.

From: Kylan | Date: 12/05/2022

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