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SG Series Three Phase Isolation Transformer

4kVA Three Phase Power Transformer (Model: SG-4kVA)

4kVA Three Phase Power Transformer (Model: SG-4kVA)

Primary Voltage: 660V, 400V, 380V or Customized
Secondary Voltage: 380V, 220V, 110V or Customized
Connection Symbol: Yyno, Yd, Dy or Dd
Usage: Combined Transformer, Power Transformer, Distribution Transformer
Description: DG (single-phase) and SG series (three-phase) dry type transformer adopts high quality material and advanced technology , it has advantages of damp - proof and convenient maintenance, it can be applie
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SG Series Three Phase Power Transformer / Isolation Transformer

Specification

1.Standard:IEC/ ISO CE Certification
2.Rated voltage: <3kV
3.Three Phase Isolation transformer
4.Low loss & noise
5.Completely protection
6.Open Type and Protective Type as optional
7.Beautiful appearance, reliable quality
8.Easy to install

Application

DG (single-phase) and SG series (three-phase) dry type transformer adopts high quality material and advanced technology , it has advantages of damp - proof and convenient maintenance, it can be applied to such power transmission and distribution places like underground railway , high building, airport, station, wharf, enterprise, tunnel, etc. It is mainly used in power supply occasions of AC 50~60Hz and voltage less than 500V. All the input and output voltage , connection group and capacity of tapped winding can be designed and produced according to users' requirements.

Working Conditions

1.Ambient temperature: -25°C~+55°C
2.Altitude: <1000m
3.Relative humidity: <90%
4.Environment exists without gas, steam, chemical deposition, dust or dirt that will affect transformer's insulation seriously, also explosive or corrosive medium is not allowed.
5.If any special working conditions that are not in line with the above stipulations, user shall negotiate with us.

Model and Its meaning

3kVA Excellent Quality Three Phase Dry Type Power Transformer with Ce Certificate (SG-3kVA)

Main Technical Characters

1.Input Voltage: 660V,440V,420V,415V,400V,380V,220V,110V etc
2.Output Voltage: 380V,220V,200V,190V,120V,110V,100V,48V,36V,24V,12V, etc
3.Capacity range: 0.15KVA-2000KVA
4.Efficiency: ≥95%
5.Insulation Class: B or F or H or HC
6.Type of cooling system: natural air drying or with fans cooling for IP20
7.Waveform distortion: no additional waveform distortion
8.Function: indication of input voltage, output voltage and current
9.Protection: over-current protection
10.Winding conductor material: usually use copper,can use aluminum if you have special requirements
11.Can operate itself without anybody attending for a long term
12.Electric strength: no breakdown or flashover phenomenon under power frequency sine voltage of 2000V for 1min
13.Overload capability: for 1min under two times of rated current

Overall dimension and installation dimension diagram