Feature:

• The magnetic core has a miter step joint to ensure optimum performance and minimum sound levels by using step lap technology.

•  Windings are cast under vacuum with epoxy resin. Transient analysis tests have been performed to verify the electrical stress distribution.
  

• Air-cooling system adopts top-blowing cross flow fan, which has the characteristics of low noise, high wind pressure, beautiful look, etc.
  

•  Intelligent temperature controller improves the safety and reliability of the transformer.
  

•  Supply various Enclosure options in IP20, IP23, etc.
  

Parameter:

Installation Location:

• Installed in places without fire, explosion hazard, serious pollution, chemical corrosion and cluster vibration, indoor or outdoor

• Supply Ability:500 Set/Sets per Month
  

Customized Service:

• E2 Environmental Class.

• C2 Climate Class.
  

• F1 Fire Resistance Class.
  

Product Advantages:

•  Vacuum-Casting

• Our product is manufactured with vacuum casting process using a metal pattern, producing a thick resin layer with a smooth surface
  

•  Partial Discharge Free
  

• Lower partial discharge characteristics.
  

• All units are subjected to partial discharge test.
  

• Voltage that is twice that of the operating system is applied to ensure safety.
  

• Partial discharge is less than 10 pC.
  

• Shop Test Items.
  

Routine test:

• Routine test is a must test for all transformers in our workshop.

• Type test (as requested).
  

• Lightning impulse test.
  

• Temperature-rise test.
  

• Measurement of sound level.
  

What is the working principle of resin cast three-phase dry-type distribution transformer？

Definitions and Characteristics：

• 6.3kV: It indicates that the voltage on the high-voltage side of the transformer is 6.3 kV.

• Resin Casting: It means that the coils of the transformer are cast with epoxy resin or other synthetic resins to form a solid whole, which has excellent insulation properties and mechanical strength.

• Three-Phase: It means that the transformer has three independent windings and is applicable to three-phase alternating current systems.

• Dry-Type: It refers to the fact that the transformer does not use a liquid cooling medium (such as transformer oil), and usually adopts natural air cooling or forced air cooling.

Working Principle：

• Input Voltage: The high-voltage power source of 6.3 kV is applied to the transformer through the primary winding.

• Generating Magnetic Field: The current in the primary winding generates an alternating magnetic field in the iron core.

• Transferring Magnetic Field: The alternating magnetic field is transferred to the secondary winding through the iron core.

• Inducing Electromotive Force: The alternating magnetic field induces an electromotive force in the secondary winding, generating a low-voltage output voltage.

• Output Voltage: The secondary winding outputs the required low-voltage electrical energy for the load to use.