7 KVA Isolation Transformer, 3 Phase, 380V To 208V

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$2,021.86

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Stock: In Stock
Model: RDDLZ-T-SG7KVA
Weight: 1.00
SKU: RDDLZ-T-SG7KVA

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Primary Voltage (AC)

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RDDLZSG-7KVA isolation transformer is a three phase unit with 7 kVA rating and primary voltage of 380V AC on the primary side. This transformer has a secondary voltage of 208V AC on the secondary side. It is designed for use in control circuits and general applications such as mechanical and electronic equipment, precision machine tool, CNC machine tool, lighting, etc.

7 kVA Isolation Transformer Specifications

Basics	Model	RDDLZ-SG7KVA
	Phase	3 phase
	Capacity	7 kVA
	Weight of Aluminium Wire Transformer	Open type: 65kg Protected type: 81kg
	Weight of Copper Wire Transformer	Open type: 58kg Protected type: 71kg
Technical Parameters	Primary Voltage	380V (Optional: 120V/ 190V/ 208V/ 220V/ 230V/ 240V/ 380V/ 400V/ 415V/ 480V)
	Secondary Voltage	208V (Optional: 120V/ 190V/ 208V/ 220V/ 230V/ 240V/ 380V/ 400V/ 415V/ 480V)
	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
	Enclosure Protection Grade	IP 24
	Certificate	CE, ISO
	Warranty	12 months
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 Schematic Diagram

3 Phase Isolation Transformer Details

7 kVA Isolation Transformer Installation Dimension

Aluminium Wire Transformer Size				Copper Wire Transformer Size
Open type: abc=380220380mm				Open type: abc=300170310mm
Mouting size: de=260130mm				Mouting size: de=180140mm
Protected type: ABC=380530560mm				Protected type: ABC=300440500mm

Tips: What circumstance the isolation transformer must stop running?

RDDLZ step up/down isolation transformer should be stopped immediately if one of the following situations occurs:

Noise inside the isolation transformer is very large, very abnormal and has crackle sound.
Under normal load and cooling conditions, the upper oil temperature of the transformer is abnormal and keeps rising.
Expansion tank occurs or explosion-proof tube injects fuel.
Serious oil leakage occurs, resulting in the oil level lower than the oil level indicator limit.
Oil color changes too much, there is carbon in the oil.
Casing has serious damage and electric discharge phenomena.
Isolation transformer catches fire.
Casing connector and lead turns red, melted or fused.

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Aluminium Wire Transformer Size				Copper Wire Transformer Size
Open type: abc=380220380mm				Open type: abc=300170310mm
Mouting size: de=260130mm				Mouting size: de=180140mm
Protected type: ABC=380530560mm				Protected type: ABC=300440500mm

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