Three Phase Oil Transformer
Three-phase oil-immersed transformers are core power conversion equipment for power systems and industrial applications. Utilizing transformer oil for insulation and cooling, they feature a fully sealed structure and operate on the principle of electromagnetic induction to achieve stable, safe, and highly adaptable voltage conversion for three-phase AC power supply scenarios.
Description
Details page content
I. A brief product introduction
Three-phase oil-immersed transformers serve as essential power conversion equipment in power systems and industrial fields. They employ transformer oil as both the insulation and cooling medium, with a fully sealed corrugated oil tank or conservator with plate radiator structure that effectively isolates the internal components from ambient air and moisture. Operating on the principle of electromagnetic induction, these transformers enable voltage conversion and isolated power transmission, making them well-suited for three-phase AC power supply applications. The combination of high-permeability magnetic materials, efficient cooling design, and comprehensive protection devices ensures stable operation, reliable safety performance, and strong adaptability across diverse operating conditions.
II. Model Explanation
III. Product Details/Advantages
- 1. Materials & Process
High-permeability silicon steel/amorphous alloy core + oxygen-free copper windings reduce losses; fully sealed structure isolates air/moisture, extending life.
- 2. Insulation Safety
Transformer oil provides high insulation strength, suppressing discharge faults; sealed environment ensures stable long-term performance.
- 3. Heat Dissipation
High heat capacity & thermal conductivity of oil + simple cooling system enable rapid heat dissipation for continuous stable operation.
- 4. Overload & Adaptability
Thermal reserve allows short-term overload. Options: mineral oil or high-flash-point vegetable oil for different environments.
- 5. Quality Control
Full-process control from raw materials to finished products ensures each unit meets standards.
IV. Product Parameters
|
Parameter |
Value |
|
Operating Ambient Temperature |
Normal range -20℃ to +40℃; wide temperature adaptability for special scenarios |
|
Ambient Relative Humidity |
≤85% (at 20℃); additional protection solutions available for high humidity environments |
|
Power Requirements |
Must match rated voltage, frequency, and waveform; control voltage deviation and harmonics to ensure stable operation |
|
Voltage Regulation Method |
On-load tap changer or off-load tap changer available to adapt to different voltage regulation needs |
V. Scope of Supply
|
No |
Name |
Model |
Quantity |
Unit |
|
1 |
Three phase oil immersed transformer |
1 |
Set |
|
|
2 |
Install the attachment |
1 |
Set |
VI. Optional Customization Solutions
We can customize according to the different needs and requirements of our clients.
VII. Quality
The quality assurance of Rsafele Electric relies on a complete system that includes full process control, strict process management, and a quality control plan that guides everything.
Qualification association: We adhere strictly to globally recognized regulations and protocols, integrating environmental excellence and quality management throughout the product lifecycle.
VIII. Real-world cooperation cases
The three phase oil transformer is a core power transmission and distribution device specifically designed for the 30MW photovoltaic and 60MWh energy storage project in Chad. After its commissioning, the three phase oil transformer worked efficiently with the project's photovoltaic array, energy storage system, and newly built 33kV transmission line, helping the photovoltaic and energy storage project achieve successful grid connection and power generation on the first attempt.
IX. Application Scenarios
- 1. Core Nodes of Power Systems
Widely used in substations at all levels for voltage transformation and power distribution.
- 2. Main Power Source in Industrial Sector
Provides stable high-voltage power for heavy equipment in factories, mines, metallurgy, chemical, and other industries.
- 3. New Energy and Infrastructure
Supports grid connection for wind and solar farms, as well as power distribution for rail transit, ports, and large buildings. High reliability, large capacity, strong overload capability, and cost-effectiveness make it the preferred choice for applications requiring continuous and stable power supply.
X. Our Service
Our after-sales service and technical team solemnly promises
Pre-Sales Service
- Consultation & Guidance: 24/7 online support with expert engineers to clarify needs, recommend solutions, and advise on pricing and processes.
- On-Site Inspection: Engineers visit sites for precise measurements and environmental assessment, deliver detailed reports to support tailored system design.
After-Sales Service
- Year Warranty: Covers material/manufacturing defects as per contract.
- Dedicated Support: One-on-one follow-up from a specialized team for seamless assistance.
- Multi-Channel Help: Support via contacts, project teams, or website; fast global coordination for repairs or replacements during warranty.
XI. Product usage tutorials, solutions, and technical problem notifications
Oil-Immersed Transformer: Pre-Operation Checklist
1. Physical Condition Assessment
2. Electrical Integrity Validation
3. Fluid Management System Verification
4. Critical Maintenance Guidelines
Implement essential preservation protocols:
• Maintain fluid chemical consistency through manufacturer-matched replenishment
• Schedule desiccant replacement at prescribed saturation levels with proper isolation procedures
• Preserve grounding network integrity through corrosion mitigation and connection security verification
[Click here to view the complete product manual & detailed instructions >]
XII. Packaging and Transportation
XIII. Factory Strength
1. Qualification Certificates
2. Innovative technologies/capabilities
High-tech enterprise certificate
3. Supply Chain Advantages
1. Mature and Stable Technology
Oil-immersed transformer technology has been developed over a long period, with mature processes and well-established standards, providing a reliable foundation for mass production.
2. Well-Established Raw Material Supply Network
Core materials such as silicon steel sheets, insulation materials, and transformer oil are sourced through diverse and stable supply channels, ensuring production continuity and cost control.
3. Highly Standardized Component Manufacturing
Key components are manufactured using highly standardized processes, supported by a mature matching system, guaranteeing product consistency and stable quality.
4. Professional production equipment (CNC)
XIV. FAQ
1. Q: How to identify and handle dehumidifier malfunctions?
A: Identify malfunctions when silica gel turns pink, the oil cup is empty, or the unit is clogged. Caused by saturated silica gel, low oil level, or blockages. Immediately replace with dry blue silica gel, refill the oil cup to cover the breather port, and clear any airway obstructions.
2. Q: What should be done after the pressure relief valve activates?
A: Indicated by a ruptured diaphragm, oil spray, and loud noise. Typically caused by internal faults or a failed diaphragm. Shut down immediately, inspect for internal faults, replace the diaphragm with a certified one, and verify its set pressure meets specifications.
3. Q: What are the signs of winding faults and how to handle them?
A: Signs include >2% 3-phase voltage imbalance, >5% DC resistance deviation, and a sharp insulation resistance drop, possibly with crackling sounds or gas relay activation. Root causes are insulation aging or breakdown. Execute an immediate shutdown, prohibit re-energizing, perform diagnostic tests, and arrange factory repair for rewinding.
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