| Customization: | Available |
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| Application: | Power, Electronic, Instrument, Lighting, Rectifier, Audio |
| Phase: | Three |
| Shipping Cost: | Contact the supplier about freight and estimated delivery time. |
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Phase
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Three phase
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Capacity
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0.5KVA-2000KVA
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Input voltage
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220V 380V 400V 415V 440V 480V 660V or Customized
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Output voltage
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660V 480V 440V 415V 380V 220V or Customized
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Output voltage accuracy
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±1%
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Voltage change rate
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≤1.5%
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Output waveform distortion
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No distortion (compared to the input waveform)
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Insulation class
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Class F, Class H; IP 00, IP30 etc.
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Working efficiency
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≥98%
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Applicable frequency
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50/60Hz
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Dielectric strength
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3000VAC/1min
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Connection method
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Yyn0 DYn11 or Customized
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Sound level
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≤50dB(within 1m)
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Temperature rise
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≤60
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Insulation resistance
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≥150MΩ
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Working environment
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Temperature: -20~+45, Humidity: ≤95% RH no condense
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Installation environment
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Non-corrosive gas and conductive dust
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Standard
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ISO9001, CE, VDE0550, IEC439, GB226
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Cooling method
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ANAF
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QSG/SG three-phase dry type isolation transformer is a new generation energy-saving power transformer developed by our factory based on international similar products and combined with China's national conditions, from 300VA to 1600KVA, in line with international and national standards such as IEC439 and GB5226. The winding adopts the method of winding out the hole row. The transformer is vacuum-impregnated, so that the insulation grade of the transformer reaches F class or H class, and the product performance reaches the advanced level at home and abroad. QSG/SG series three phase dry type isolation transformer is widely used in circuits with AC 50Hz to 60Hz and voltage below 2000V. all can be specially customized as per different requirements of the end users.
FAQ
Q1: What is the difference between a dry type transformer and an oil-immersed transformer?
A: Dry type transformers use air or epoxy resin for insulation, offering higher fire safety and easier maintenance. Oil-immersed transformers are more suitable for outdoor or heavy-duty applications but require regular oil monitoring.
Q2: Can a dry type transformer run continuously under full load?
A: Yes. High-quality Three Phase Dry Type Transformers are designed for continuous operation, provided they are installed with proper ventilation or cooling.
Q3: How long is the service life of a dry type transformer?
A: Typically 20-30 years with proper installation and periodic maintenance, thanks to its robust insulation system and reliable cooling design.
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