100kVA Step Up All Copper Three-Phase Dry-Type Distribution Transformer

Description

The Dry-Type distribution transformer adopts natural air cooling or forced air cooling to dissipate operating heat. Sufficient ventilation and smooth airflow are critical for the Dry-Type distribution transformer to avoid overheating and maintain high working efficiency of the distribution transformer.

Compared with oil immersed equipment, the Dry-Type distribution transformer is less affected by external environments. Even so, the distribution transformer still requires reasonable environmental condition control during application.

The installation site of the Dry-Type distribution transformer must be protected from moisture dust corrosive substances and other pollutants, which may damage the insulation structure and internal components of the distribution transformer.

For harsh scenarios such as coastal regions and industrial zones, the Dry-Type distribution transformer can be equipped with weatherproof enclosures and special protective coatings to extend service life and ensure stable operation of the distribution transformer.

All electrical connections for primary winding secondary winding and grounding of the Dry-Type distribution transformer shall be implemented in strict accordance with electrical standards and manufacturer technical specifications.

Feature

• The magnetic core of the Dry-Type distribution transformer adopts miter step joint and step lap technology, delivering optimal performance and ultra low noise for the distribution transformer.

• Windings of the Dry-Type distribution transformer are vacuum cast with epoxy resin. Transient analysis tests are completed to verify electrical stress distribution and enhance the reliability of the distribution transformer.

• The air cooling system matched with the Dry-Type distribution transformer uses top blowing cross flow fan, featuring low noise high wind pressure and elegant appearance.

• Equipped with intelligent temperature controller, the Dry-Type distribution transformer realizes real time temperature monitoring and greatly improves operation safety and stability of the distribution transformer.

• Multiple enclosure grades such as IP20 and IP23 are optional for the Dry-Type distribution transformer to meet different installation and protection demands.

Parameter

• Installation Location：The Dry-Type distribution transformer is suitable for indoor and outdoor installation in sites without fire explosion hazard severe pollution chemical corrosion and strong vibration.

• Supply Ability：500 Set/Sets per Month for Dry-Type distribution transformer and standard distribution transformer.

• Customized Service：Customizable Dry-Type distribution transformer supports E2 Environmental Class, C2 Climate Class and F1 Fire Resistance Class, meeting diverse standard requirements of different distribution transformer projects.

Product Advantages

• Vacuum-Casting：The Dry-Type distribution transformer adopts vacuum casting process with metal mold, forming thick smooth resin layer and stable overall structure of the distribution transformer.

• Partial Discharge Free：The Dry-Type distribution transformer owns excellent low partial discharge performance. Every distribution transformer passes strict partial discharge test.

• Apply twice rated operating voltage for safety verification, with partial discharge controlled below 10 pC.

Shop Test Items

Routine test

All finished Dry-Type distribution transformer products must complete factory routine tests to guarantee quality of each distribution transformer.

Type test (on request)

• Lightning impulse test

• Temperature-rise test

• Measurement of sound level

What is a step-up all-copper three-phase dry-type distribution transformer？

Definitions and Characteristics：

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

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