Three Phase Cast Resin Dry Type Industrial 1000kVA 11kv/0.415kv Class F Transformer

Product Description

Brief Description
This epoxy resin cast dry-type transformer uses high-quality silicon steel core and copper windings, encapsulated with epoxy resin under vacuum casting. It has no insulating oil, featuring flame retardant, explosion-proof, low partial discharge, low noise and minimal maintenance. Ideal for indoor power distribution, high-rise buildings, hospitals, data centers, subway, photovoltaic and wind power stations. Suitable for environments with strict fire safety & environmental requirements.

Epoxy Resin Cast Coil: Vacuum cast epoxy resin encapsulates copper winding, high mechanical strength, anti-short circuit capability.
Silicon Steel Laminated Core: Low loss cold rolled silicon steel sheet, optimized core structure to reduce noise & no-load loss.

three Phase Cast Resin Dry Type Industrial 1000kVA 11kV/0.415kV Class F Transformer

Temperature Controller: Real-time winding temperature monitoring, alarm and trip protection.

Mounting Base & Bracket: Heavy-duty steel base for stable installation.

Enclosure (Optional IP20/IP30): Prevent accidental touch and dust ingress.

Application Scenarios

1.Commercial & residential high-rise buildings
2.Hospitals, schools, public facilities
3.Data centers
4.Metro / tunnel projects
5.Solar & wind renewable power plants
6.Industrial workshops

Product Advantages
1. Fire Safety – IEC 60076-11 Class F1
Epoxy resin self-extinguishes instantly. No oil – ideal for hospitals, subways, data centers, and high-rises.
2. Zero Maintenance & Low Operating Cost
No oil checks, pits, or separate rooms required. Lower total cost than oil-immersed units.
3. Energy Efficiency – GB 20052-2024 Grade 1
~30% lower no-load losses vs. SCB12. Operating noise: 45-52 dB(A).
4. Short-Circuit Withstand
Vacuum casting and full-oblique core joints provide up to 8% impedance withstand.
5. Partial Discharge < 5 pC
Vacuum casting eliminates voids, achieving <5 pC PD for decades of reliable insulation.
6. Compact & Environmentally Friendly
30-50% smaller footprint. No contamination risk. Installable at load centers. Fully recyclable.

Production Process
Raw material inspection → Core stacking → Coil winding → Vacuum impregnation & curing →

Core-coil assembly → Lead connection → Cabinet assembly → Electrical testing → Surface coating → Final inspection → Packing

Technical Specifications – SCB12-800/10 Dry-Type Transformer

No.	Parameter	Specification
1	Energy Efficiency Class	SCB12
2	Rated Capacity	800 kVA
3	Rated Voltage (HV/LV)	10 kV / 0.4 kV
4	Rated Current (HV/LV)	46.19 A / 1154.7 A
5	Voltage Ratio	10 ± 2 × 2.5% / 0.4 kV
6	Short-Circuit Impedance	6%
7	Vector Group	Dyn11
8	Rated Frequency	50 Hz
9	Insulation Class	Class F
10	Temperature Rise Limit	100 K
11	Rated Insulation Level	35/5 kV
12	Lightning Impulse Withstand Voltage (HV Side)	75 kV
13	Power Frequency Withstand Voltage (HV Side)	35 kV / 60 s
14	Power Frequency Withstand Voltage (LV Side)	5 kV / 60 s
15	Power Frequency Withstand Voltage (Neutral Point)	5 kV / 60 s
16	No-Load Loss	1.215 kW
17	Load Loss	6.96 kW
18	No-Load Current	0.70%
19	Efficiency	≥99%
20	Partial Discharge Level	<10 pC
21	Noise Level	≤60 dB

Product Range:

• Epoxy resin cast dry-type transformers (≤35 kV)

• Oil-immersed transformers

• Photovoltaic boost transformers

• YB12 box-type substations

• Intelligent high/low-voltage switchgear

• Prefabricated box transformers for EV charging

• Smart charging piles

• Distributed photovoltaic products

Certificates and Test Reports

Global market case
EV Gigafactory, Shangha

Deployed across renewable energy plants, urban distribution networks, industrial facilities, commercial buildings, and critical infrastructure.

Oil-Immersed Transformers – Indonesia
Export Power Distribution
S13/S20 series oil-immersed distribution transformers supplied for Indonesian grid and industrial networks.
Dry-Type Transformers – Australia
Export Commercial building
SCB14/SCB18 series cast-resin dry-type transformers, 11/22 kV class, supplied to Australian commercial and data-center networks. Fire-safe, maintenance-free, engineered to AS/NZS 60076.

Total Quality Management (TQM)

ISO 9001, ISO 14001, OHSAS 45001 certified. Full-chain quality control from material to delivery.

A. Incoming Quality Control (IQC)
All raw materials undergo full testing before production. Non-conforming materials rejected.

B. In-Process Quality Control (IPQC)
10+ QC inspections: core stacking, excitation, winding resistance, insulation, partial discharge, dimensional checks.

C. Final Quality Control (FQC)
Every unit 100% tested before shipment:

Routine Tests (IEC 60076-11):
• Winding resistance
• Voltage ratio & vector group
• No-load loss & current
• Load loss & short-circuit impedance
• Insulation resistance
• Applied voltage (hi-pot)
• Induced voltage
• Partial discharge (<5 pC)

Type Tests (on request):
• Temperature rise
• Lightning impulse (95 kV)
• Short-circuit withstand
• Acoustic noise

Special Tests:
• Zero-sequence impedance
• No-load current harmonic analysis

D. Certifications
• ISO 9001
• ISO 14001
• ISO 45001
•CE
• IEC 60076
Transportation

Shipping Methods:
• Sea (FCL/LCL) via major Chinese ports: 15-45 days.
• Rail: China-Europe Railway Express: 15-20 days.
• Road: Regional deliveries.
• Air: For urgent small shipments.
Trade Terms:
EXW, FOB, CIF,
Lead Time:
• 30-630 kVA: 20-30 days.
• 800-2,500 kVA: 35-45 days.

Q: What are the main advantages of dry-type transformers compared with oil-immersed transformers?

A: Dry-type transformers feature flame retardancy, low pollution, low noise, simple maintenance, and can be installed indoors without an oil pit. They are ideal for high safety requirement scenarios such as commercial buildings, data centers and hospitals.

Q: What insulation class do your dry-type transformers adopt?

A: Our standard dry-type transformers use Class F or Class H insulation. Class H can withstand higher operating temperature and has longer service life under heavy load conditions.

Q: Can you customize the voltage ratio and capacity of dry-type transformers?

A: Yes. We support custom capacity from 50kVA to 2500kVA, and customizable primary & secondary voltage according to your local grid standard.

Q: What is the typical service life of a dry-type transformer?

A: Under normal operating environment and proper maintenance, the design service life is about 20–25 years.

Q: What tests will be carried out before delivery?

A: Each unit will undergo a full set of factory tests, including turns ratio test, DC resistance test, insulation resistance test, no-load loss, load loss and partial discharge test. Test reports can be provided.

Q: Is a cooling fan mandatory for dry-type transformers?

A: Not mandatory. Natural air cooling (AN) is standard. Cooling fans (AF) are optional if you need overload capacity or high ambient temperature working conditions.

Q: What protection devices can be equipped on dry-type transformers?

A: We can install temperature controller, temperature sensor, over-temperature alarm and trip function to monitor coil temperature in real time.

Q: What certificates do your dry-type transformers have?

A: Our products can meet IEC standard. We can provide test certificates and related documents for project tender upon request.

Q: What are the requirements for installation environment?

A: The site shall keep dry, less dust, no corrosive gas and explosive substances. Ambient temperature should be within -20℃ ~ +40℃.

Q: What after-sales service can you provide?

A: We supply operation manual, installation guidance. We offer technical support online, and spare parts can be supplied for maintenance.

Packaging
1. Transformers Package
Packed in solid plywood wooden cases. The crates are reinforced with timber frames, equipped with bottom skids for forklift handling. Internal moisture-proof and shockproof protection is applied to safeguard electrical parts during sea & land transit.
2. Large Prefabricated substation / Complete Substation package
No wooden box packing. The whole unit is fixed and secured on flatbed trucks with tension straps. We adopt professional heavy-load binding scheme, and take protective measures on exposed fittings. Direct shipment as an integrated module to cut re-assembly work for clients.
All packages comply with export shipping standards, suitable for ocean freight, land transportation and multi-modal transport.