Station Service Transformer
Oil-immersed station service transformers are core supporting equipment for substation power systems. Using transformer oil as the insulating and cooling medium and operating on the principle of electromagnetic induction, they feature a fully sealed structure to ensure reliable power supply for auxiliary systems such as control, protection, and lighting within substations.
Description
Details page content
I. A brief product introduction
Oil-immersed station service transformers are core supporting equipment of substation power systems. They use transformer oil as the insulating and cooling medium and rely on the principle of electromagnetic induction to achieve voltage conversion and isolated transmission. They adopt a fully sealed structure design and are specially designed for the continuous and stable power supply needs of substations. They can ensure the reliable operation of auxiliary systems such as control, protection, and lighting, as well as main equipment within the station.
II. Model Explanation
III. Product Details/Advantages
- 1. Material & Process
High-permeability silicon steel / amorphous alloy core + high-conductivity windings reduce losses; fully sealed structure isolates air and moisture, extending service life.
- 2. Insulation Safety & Reliability
Transformer oil offers excellent insulation and arc extinguishing to suppress discharge faults; equipped with gas relay, pressure relief valve, and other protections for safe operation.
- 3. Heat Dissipation & Adaptability
High heat capacity and thermal conductivity of oil, combined with efficient cooling system, ensure precise temperature rise control; strong overload capacity adapts to load fluctuations.
- 4. Environmental Compliance & Options
Available in mineral oil or environmentally friendly vegetable oil to suit various applications; full-process quality management ensures high standards.
IV. Product Parameters
|
Item |
Requirements and Description |
|
Operating Ambient Temperature |
The core operating ambient temperature range is -20℃ to +40℃. A wider range can be adapted for special scenarios. |
|
Operating Ambient Humidity |
Relative humidity typically does not exceed 85% (at 20℃). High humidity environments require additional protection. |
|
Core Power Supply Requirements |
Must match the rated voltage, frequency, and waveform. Parameters such as voltage deviation and harmonics must be controlled to avoid affecting operational stability. |
|
Voltage Regulation Methods |
on-load tap changing off-load tap changing |
V. Scope of Supply
|
No |
Name |
Model |
Quantity |
Unit |
|
1 |
Oil immersed substation transformer |
1 |
Set |
|
|
2 |
Install the attachment |
1 |
Set |
VI. Optional Customization Solutions
We are committed to providing customers with deeply customized transformer solutions, capable of personalized design and production tailored to specific application scenarios, installation conditions, and technical parameters. From initial needs assessment to solution implementation, we ensure that every product precisely matches your project requirements, creating unique value for you.
VII. Quality
Our oil-immersed station service transformer undergoes full-process quality control:
Incoming Material: Core materials (silicon steel, wire, transformer oil) are tested; non-conforming items are rejected.
Production: Key processes (core lamination, winding, sealing welding) are visualized with process records.
Factory Testing: Each unit passes 12 comprehensive tests, including insulation resistance, ratio test, temperature rise, and short-circuit withstand.
After-Sales: 1-year warranty (3 years for core components) with professional technical support for on-site guidance and troubleshooting.
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
This project is the core transmission project of the 400,000 kW photovoltaic + energy storage market-oriented grid-connected project in Awat County. As the only 220 kV photovoltaic step-up substation in the park, it needs to provide stable auxiliary power supply for the subsequent large-scale photovoltaic and energy storage power grid connection. Its station service transformer needs to be adapted to the local outdoor working conditions with large temperature differences and a lot of sand and dust, while meeting the auxiliary power supply needs of core equipment such as the main transformer, GIS combined switch, and SVG reactive power compensation equipment in the substation.
IX. Application Scenarios
Oil immersed station service transformers play a crucial "self-consumption power heart" role in power systems. Due to their high reliability, excellent heat dissipation and overload capacity, and strong environmental adaptability, oil immersed station service transformers are widely used in the following scenarios:
- 1. Conventional substations: Substations with voltage levels such as 35kV and 110kV
- 2. Industrial and harsh outdoor environments: Auxiliary substations in oil fields, mines, and factories
- 3. New energy and special climate scenarios: Offshore wind farms, coastal areas, and high-altitude areas
- 4. Locations with frequent load fluctuations: Rural power grids, areas experiencing seasonal load surges such as during busy farming seasons/Spring Festivals.
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
Pre-Operational Inspection Summary
1. Basic Condition Check
2. Electrical Safety Verification
3. Oil System & Maintenance
[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. Diversified Supply Channels
Core raw materials such as silicon steel sheets, electromagnetic wire, and transformer oil are basic industrial materials with a wide range of suppliers and ample market supply, ensuring stable procurement and cost control.
2. Domestic Production of Key Components
While some high-end key components previously relied on imports, the domestic supply chain has achieved significant breakthroughs, reducing external dependencies and enhancing supply chain autonomy.
4. Professional production equipment (CNC)
XIV. FAQ
Q1: How can I identify a dehumidifier malfunction, and what should I do?
A1: Look for pink silica gel, an empty oil cup, or clogging. These indicate moisture saturation or blockages. Immediately replace the silica gel with dry blue material, refill the oil cup to cover the breather tube, and clear any blockages to restore airflow.
Q2: What does pressure relief valve activation signify, and how should it be addressed?
A2: A ruptured diaphragm, oil spray, and loud noise suggest internal pressure surge or valve failure. Shut down the transformer, inspect for internal faults, replace the diaphragm, and verify the valve's activation pressure meets specifications.
Q3: What are the signs of a winding fault, and what emergency steps are needed?
A3: Watch for >2% three-phase voltage imbalance, >5% DC resistance deviation, or crackling sounds with sudden insulation drop. These stem from insulation aging or breakdown. Immediately de-energize the transformer, perform diagnostic tests, and arrange factory repairs for rewinding or localized fixes.
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