25 kVA Isolation Transformer, 3 phase, 380 Volt to 220 Volt

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

$2,339.68

Old price: $2,752.56

3 phase 380V to 220V isolation transformer is 50/60 Hz rated, available with aluminium/copper wire winding material, the effective performance and high quality features make it ideal for use in the electrical and the engineering industries.

SKU: ATO-ISOTRANS-SG-25KVA

Winding Material *
Primary Voltage (V) *
Secondary Voltage (V) *

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Delivery date: 10-15days

Overview
Isolation Transformers Catalog
Relative Video

Low price 25 kVA isolation transformer is designed to step down 3 phase voltage 380 volt to 3 phase 220 volt, aiso step up 220 volt to 380 volt, suitable for both indoor and outdoor applications.
25 kVA Isolation Transformer Specifications

Basics	Model	ATOSG-25KVA
	Phase	3 phase
	Capacity	25 kVA
	Size	550294430 mm (without shell); 630400530 mm (with shell)
	Weight	125 kg (without shell); 150 kg (with shell)
Technical Parameters	Primary Voltage	380V (optional: 110V/ 120V/ 208V/ 220V/ 230V/ 240V/ 400V/ 415V/ 480V)
	Secondary Voltage	220V (optional: 110V/ 120V/ 208V/ 230V/ 240V/ 380V/ 400V/ 415V/ 480V)
	Voltage Convert	Three phase to three phase
	Frequency	50Hz / 60 Hz
	Winding Material	Aluminium/Copper wire (Optional)
	Work Efficiency	≥95%
	Insulation Resistance	≥50 MΩ
	Electrical Strength	3000V AC/1 min
	Noise	<35-65dB (1 meter)
	Insulation Grade	H level
	Wiring Mode	Dyn11
	Cooling Mode	Dry type air cooling
	Overload Capacity	Allow more than 1.2 times rated load to work for up to 4 hours
Working Environment	Temperature	-15℃~+40℃
	Humidity	≤90%RH, without condensation
	Altitude	<1000m, non corrosive gas and conductive dust

Note:
Transformer can only convert voltage and CANNOT convert frequency.
Transformer CANNOT convert single phase voltage to 3 phase voltage.
Input/output voltage, power rating and whether with shell of all transformers, can be customized according to clients' requirements.
3 phase Isolation Transformer Wiring Method
Isolation Transformer Application Areas
Tips: How to select a 3 phase step up & step down isolation transformer?

Confirm the power supply voltage (V) provided by the grid and the required input rated voltage of the electric equipment to determine the voltage (V) ratio of the transformer.
Confirm the phase number of the input power supply required by electrical equipment to determine whether to make three-phase or single-phase system transformer.
Confirm the required input rated current (A) of the electrical equipment to determine the transformer capacity (KVA).
Insulation class requirements: A class 105 ℃, B class 130 ℃, F class 155 ℃, H class 180 ℃.
Autotransformer or isolated transformer.

Three Phase Isolation Transformers Catalog.pdf

Need more detail of ATO isolation transformer? Here is a good explanation about it in this video. To test the accuracy of the transformer voltage, we take a 3000 VA single phase 220V iuput to 110V output isolation transformer as an example.

Existing reviews of 25 kVA Isolation Transformer, 3 phase, 380 Volt to 220 Volt

Nothing to say, very reliable transformer

I am quite pleased with this 25 kVA isolation transformer. Although it is a little heavy but then fit for purpose. I also like that this is a dual function transformer to work in reverse to step down 220 volts to 120 when needed. Will surely recommend for people who want to use appliances across countries.

From: Bill Porter | Date: 25/09/2018

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