Low Loss Epoxy Resin Dry Type Transformer

The Low Loss Epoxy Resin Dry Type Transformer from Lugao Power Co., Ltd. is a next-generation cast resin transformer designed for environments where safety, efficiency, and maintenance-free operation are critical. Unlike traditional oil-immersed transformers, this dry-type unit uses epoxy resin as the primary insulation and encapsulation material, eliminating the risk of oil leakage, fire explosion, or environmental contamination.

What can it do?

1. Step down high voltage (6kV–35kV) to low voltage (0.4kV–1.14kV) for end-use equipment.

2. Operate safely in fire-sensitive areas such as hospitals, airports, subways, and high-rise buildings.

3. Deliver continuous power in high-humidity, dusty, or chemically mild corrosive environments.

4. Integrate with smart monitoring systems for real-time loss and temperature tracking.

Every Lugao Low Loss Epoxy Resin Dry Type Transformer undergoes a full vacuum pressure encapsulation process, ensuring zero voids and exceptional dielectric strength.

Product Parameter (Specification)

Product Feature And Application

Core Features (with Q&A format)

Q1: What makes the “Low Loss” claim different from standard dry-type transformers?

A: Our Low Loss Epoxy Resin Dry Type Transformer uses high-permeability grain-oriented silicon steel (Hib) and multi-step stepped lap joints, reducing hysteresis and eddy current losses by up to 30% compared to conventional CRGO designs. Independent third-party tests confirm a 28.6% reduction in no-load loss for a 2000 kVA unit. This translates to over $4,500 in electricity savings annually for a 24/7 operation.

Q2: How does epoxy resin improve fire safety?

A: The epoxy resin system is self-extinguishing (UL94 V-0) and emits very low smoke and non-toxic gases when exposed to flame. Unlike oil-filled units, a Low Loss Epoxy Resin Dry Type Transformer contains no flammable liquid, making it suitable for indoor installations without firewalls or sprinkler systems over the transformer.

Q3: Can it operate in high humidity or salty environments?

A: Yes. The fully encapsulated coils prevent moisture ingress, and the epoxy surface has high creepage resistance (CTI ≥ 600). For coastal or chemical plants, we offer optional anti-corrosion coating (C5-M grade) on core and clamps. Many clients have installed our Low Loss Epoxy Resin Dry Type Transformer near seaports with over 90% average humidity and zero insulation failures after 8 years.

Q4: What is the partial discharge guarantee?

A: Every unit is tested at 1.3 × rated voltage and measured at <5 picocoulombs – far below the IEC 60076-11 limit of 10 pC. This ensures a defect-free casting process and extends insulation life beyond 30 years.

Q5: Is it quieter than traditional dry-type transformers?

A: Significantly. Through optimized core clamping with elastic buffers and double-layer vibration damping, our Low Loss Epoxy Resin Dry Type Transformer operates at 48–55 dB(A) depending on capacity – perfect for hospitals, libraries, and residential buildings.

Applications

Commercial & Public Buildings: Shopping malls, data centers, airports, subways.

Renewable Energy: Solar farms, onshore wind turbine step-up stations.

Industrial: Textile mills, plastic factories, mines (underground sections).

Infrastructure: Railway signaling, tunnel ventilation, EV charging hubs.

Special Environments: High-altitude stations, floating vessels (with anti-condensation heaters).

Production Details

Each Low Loss Epoxy Resin Dry Type Transformer is assigned a unique serial number with traceability to raw material batches, winding operators, and test records. Our factory in Zhejiang, China, is ISO 9001:2025 certified and follows lean manufacturing principles.

Why Choose Lugao Power Co., Ltd.?

Certification & Quality Assurance

1. Design standard: IEC 60076-11, GB 1094.11

2. Factory certification: ISO 9001, ISO 14001, ISO 45001

3. Product certifications: CE, TUV-SUD type test report

Product Delivery

Port: Ningbo or Shanghai.

Lead time:

Sample units (≤1000 kVA): 20 working days

Batch order (≥5 units): 35 working days

Shipping methods: Sea freight (standard), air freight

Documents included: Packing list, commercial invoice, test reports, installation manual, and QR code linking to video guide.

After-Sales & Warranty

Standard warranty: 12 months from date of commissioning or 18 months from shipment, whichever comes first.

Coverage: All manufacturing defects including loss of epoxy adhesion, core excessive noise (>65 dB(A) at rated load), and partial discharge exceeding 10 pC.

Exclusions: Mechanical damage during transport, improper installation, overloading beyond nameplate, or environmental corrosion without specified coating.

Service response

Email/ticket within 24 hours

Spare parts dispatch within 48 hours

Field service dispatched within 7 days (Asia) or 14 days (global)

Extended warranty option: Additional 24 months (total 36 months) available for purchase – covers annual loss verification test and one free factory training for two technicians.