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 a step-down all-copper three-phase dry-type distribution transformer？

Definitions and Characteristics：

• Voltage Reduction: It means that a transformer converts the input high-voltage electrical energy into low-voltage electrical energy.

• All-Copper: The windings of the transformer are all made of copper wires, which possess excellent electrical conductivity and mechanical strength.

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

• Dry-Type: It means 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 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.