Model Options: Oil-Immersed / Epoxy Resin Dry-Type / Isolated Dry-Type
Junengda Electrical Co. Ltd is a trusted supplier of certified 30kVA transformers for global power distribution networks. Designed to meet stringent international standards, our transformers deliver reliable performance, energy efficiency, and long service life. With flexible configuration options, they are ideal for use in utilities, industrial facilities, mining operations, and compact substations.
Key Features
- Rated Capacity: 30kVA
- Voltage Range: 6–35kV primary (customizable), 400V/230V secondary
- Cooling Types: ONAN (Oil Natural Air Natural), AN (Air Natural)
- Insulation Class: F / H (Dry-Type), A (Oil-Immersed)
- Frequency: 50Hz / 60Hz
- Certifications: CE, CB, CCC, ISO9001, KEMA, SASO
Product Types Available
1. Oil-Immersed 30kVA Transformer
- High thermal stability with mineral or silicone oil cooling
- Compact & sealed tank design to minimize oil leakage
- Low no-load losses for efficient energy savings
- Available with off-load tap changers or on-load tap changers
2. Epoxy Resin Dry-Type 30kVA Transformer
- Flame retardant and self-extinguishing epoxy cast insulation
- Moisture-resistant – suitable for high humidity environments
- Noise-free and maintenance-free design
3. Isolated Dry-Type 30kVA Transformer
- Galvanic isolation for safe load separation
- Low electromagnetic interference – ideal for sensitive electronics
- Optional electrostatic shielding for improved voltage regulation
Applications
- Industrial machinery power supply
- Commercial building distribution systems
- Renewable energy and EV charging stations
- Mining and oil field operations
- Container-type compact substations
Technical Specifications Snapshot
| Parameter | Specification |
|---|---|
| Rated Power | 30 kVA |
| Primary Voltage | 6kV / 10kV / 20kV / 33kV (customizable) |
| Secondary Voltage | 400V / 230V |
| Cooling Type | Oil-Immersed (ONAN) / Dry-Type (AN) |
| Insulation Class | A / F / H |
| Phase | Single-phase or Three-phase |
| Frequency | 50Hz or 60Hz |
| Standards | IEC, ANSI, GB, GOST |
Why Choose Junengda?
Junengda Electrical Co. Ltd is an ISO-certified, high-tech enterprise specializing in power transmission and transformation. As a strategic supplier for multiple Fortune 500 companies, we offer:
- Customized Electrical Solutions: Tailored voltage, capacity, and enclosure design based on client requirements
- Factory-Direct Manufacturing: Full control over quality and lead time
- Expert R&D Team: Advanced engineering with rapid prototyping and optimization
- 24/7 Technical Support: Pre-sale and post-sale assistance globally
- Warranty & Certification: 12-month warranty with CE, CCC, CB, and KEMA certification support
Value-Added Services
- Technical Consultation: On selection, installation, and operation
- On-Site Factory Tours: See our production line and inspection systems
- Training Programs: Certified safety & maintenance courses
- Responsive Complaint Resolution: 24-hour resolution turnaround
Request a Quote or Sample
Looking for a reliable 30kVA transformer manufacturer? Contact Junengda now to request a quotation, technical datasheet, or arrange a factory tour. We support OEM/ODM partnerships, global shipping, and long-term collaboration.
→ Get in Touch with Our Technical Sales Team