500kva Cast Resin Low Loss High Frequency Dry Type Transformer

What Is the 500kva Cast Resin Low Loss High Frequency Dry Type Transformer?

This transformer is an advanced three-phase power conversion unit that utilizes epoxy resin to fully encapsulate its high and low voltage windings. Unlike traditional oil-immersed transformers, this dry-type unit relies on air for cooling and solid insulation for dielectric strength.

What Does It Do?

It efficiently steps down medium-voltage power (typically 10kV/11kV) to low-voltage utilization levels (0.4kV) for safe distribution. This 500kva Cast Resin Low Loss High Frequency Dry Type Transformer is engineered to eliminate fire hazards and oil leaks, making it the premier choice for indoor, underground, and environmentally sensitive installations. Its "Low Loss" design minimizes energy waste, while the robust construction ensures reliable power for hospitals, data centers, industrial plants, and high-rise infrastructure.

Product Parameter (Specification)

Product Feature And Application

Q&A: Product Features

Q1: Why is this transformer considered "Low Loss" and "High Efficiency"?

A: Our 500kva Cast Resin Low Loss High Frequency Dry Type Transformer utilizes a core constructed from high-permeability, cold-rolled grain-oriented silicon steel (CRGO) with a step-lap design. This minimizes hysteresis and eddy current losses (No-Load Loss ≤1150W), significantly reducing total ownership costs and heat generation over a 20+ year lifespan.

Q2: Is this transformer safe for indoor installation near people?

A: Absolutely. The windings are encapsulated under vacuum with a flame-retardant epoxy resin. This process ensures the unit is self-extinguishing and produces minimal smoke, even under extreme thermal stress. There is zero risk of oil leakage or explosion, making the 500kva Cast Resin Low Loss High Frequency Dry Type Transformer compliant with the strictest fire safety codes (IEC 60076-11).

Q3: How does it handle harsh environments like humidity or dust?

A: The vacuum casting process eliminates internal air voids, preventing partial discharge and moisture ingress. The resin provides a robust barrier against dust, chemicals, and 100% humidity, allowing this transformer to operate reliably in coastal areas, tropical climates, and polluted industrial zones without derating.

Q4: What does "High Frequency" compatibility mean in a power transformer?

A: While primarily designed for mains 50/60Hz distribution, the low-loss core material and winding geometry of this 500kva Cast Resin Low Loss High Frequency Dry Type Transformer are optimized to handle harmonic content and higher switching frequencies often generated by modern drives, inverters, and renewable energy sources without excessive heating.

Application Scenarios

This 500kva Cast Resin Low Loss High Frequency Dry Type Transformer is ideally suited for:

Commercial & Residential Complexes: High-rise offices, shopping malls, and luxury apartments where fire safety is paramount.

Healthcare & Data Centers: Provides clean, reliable power for sensitive imaging equipment and server racks where downtime is not an option.

Renewable Energy Integration: Perfect as a step-up transformer for solar PV inverters or wind turbine auxiliary power due to its high efficiency and low maintenance design.

Heavy Industrial & Mining: Withstands high mechanical stress and vibration in factories, chemical plants, and underground mining operations.

Public Infrastructure: Airports, subways, and tunnels benefit from the compact footprint and elimination of oil-catch basins.

Production Details & Competitive Advantages

At Lugao Power Co., Ltd., we do not simply assemble parts; we precision-engineer reliability. Our 500kva Cast Resin Low Loss High Frequency Dry Type Transformer stands apart from generic alternatives through meticulous manufacturing and superior material selection.

1. Advanced Vacuum Casting Technology

Unlike competitors who may use standard atmospheric pouring, Lugao Power employs a high-vacuum chamber to impregnate the windings with Class H epoxy resin. This process ensures zero micro-bubbles or voids within the insulation. The result is an exceptionally low Partial Discharge (PD) level (<10 pC), which dramatically extends the dielectric life of the transformer compared to conventional dry-type units.

2. Superior Core Efficiency

We source only premium-grade grain-oriented silicon steel with low specific loss. Our step-lap core lamination technique reduces corner losses and magnetostriction—the primary source of transformer hum. Compared to standard market offerings, the Lugao 500kva Cast Resin Low Loss High Frequency Dry Type Transformer operates with up to 10% lower No-Load Losses and significantly quieter acoustic performance, making it ideal for noise-sensitive indoor environments.

3. Robust Short-Circuit Withstand Strength

Our low-voltage windings utilize copper or aluminum foil technology with interleaved Class H insulation. This flat-winding construction eliminates the axial forces found in traditional wire-wound coils. In the event of a downstream fault, the 500kva Cast Resin Low Loss High Frequency Dry Type Transformer maintains structural integrity and dynamic stability, preventing coil deformation—a common failure point in lower-quality dry-type units.

4. Long-Term Reliability

The fiberglass-reinforced resin encapsulation ensures the Dry Type Transformer remains impervious to thermal cycling stress. This prevents cracking and ensures the unit can be switched on instantly after long storage periods, even in high humidity, without requiring pre-drying.

Packaging, Shipping & After-Sales Service

Packaging & Logistics

Packaging: Lugao Power utilizes sturdy export-grade wooden crates with internal foam cushioning and moisture-barrier sealing. This ensures the 500kva Cast Resin Low Loss High Frequency Dry Type Transformer arrives at your site without damage from vibration or sea spray.

Shipping: We coordinate with major global carriers to offer flexible terms including FOB, CIF, and DAP. The compact and oil-free nature of this dry-type unit reduces shipping weight and hazardous material surcharges compared to oil-filled equivalents.

Warranty & Service

Warranty Period: 12 Months (1 Year) from the date of commissioning or 18 months from shipment, whichever occurs first.

Service Commitment: Lugao Power Co., Ltd. provides free technical support for installation and commissioning. In the rare event of a manufacturing defect, we supply replacement parts or complete units at our discretion. Our engineers are available remotely or on-site to ensure your 500kva Cast Resin Low Loss High Frequency Dry Type Transformer performs flawlessly.