Transformer Explosion Protection
A fixed gas-based fire suppression system engineered for oil-immersed transformers, integrating both explosion prevention and fire extinguishing. Operating on the "drain first, then inject" principle, it activates within milliseconds using internal pressure—no external power required. Pressure relief prevents explosions, while nitrogen injection cools and suffocates the flame, eliminating re-ignition. The process is water-free, non-corrosive, and residue-free, enabling quick power restoration without cleanup. Ideal for city centers, wind farms, and unattended substations. Choose dual protection for your critical assets.
Description
Details page content
I. product introduction
This device prioritizes explosion prevention and features integrated, real-time fire suppression. It uses the transformer's own internal dynamic pressure to instantly rupture a diaphragm, releasing pressure before the equipment can be destroyed. Operating without sensors or external power, it ensures a fail-safe, ultra-fast response. Ideal for high-risk urban, underground, or chemical sites, it prevents disaster spread. For remote stations like new energy hubs, it guarantees automatic, reliable protection. Moreover, it operates without water, preventing contamination and enabling swift power restoration-offering modern power assets a comprehensive safeguard that combines explosion prevention, fire suppression, and environmental safety.
II. Model Explanation
III. Product Details/Advantages
1. Millisecond Response
True explosion suppression device with millisecond-level actuation.
2. High Reliability
Activation relies solely on internal pressure, requiring no external power or drive.
3. Dual Protection
Provides both explosion-proof pressure relief and fire suppression functions.
4. Wide Compatibility
Available in multiple models to fit all oil-immersed transformer types.
5. Eco-Friendly Operation
Inert gas suffocation with no water, corrosion, or pollution-no complex cleanup, minimal outage time.
6. Minimal Impact
Eliminates explosion risk, reduces downtime, cuts losses, and lowers social disruption.
IV. Product Parameters
|
NO |
Parameter Name |
Parameter Value |
|
|
1 |
Operating ambient temperature |
-40℃～+60℃ |
|
|
2 |
Operating ambient humidity |
≤85% at 40℃ |
|
|
3 |
Power supply |
DC220V |
|
|
4 |
Nitrogen cylinder storage pressure |
13MPa |
|
|
5 |
Pressure reducing device outlet |
Pressure |
0.7MPa |
|
flow rate |
12m³/h |
||
|
7 |
Flow regulating valve outlet flow rate |
12m³/h |
|
|
8 |
Shut-off valve operating flow rate |
3.9～6m³/h |
|
|
9 |
Fire detector |
Melting point alloy, operating temperature 110℃±5℃, 135℃±5℃ |
|
|
10 |
Metal hose operating pressure |
13MPa |
|
|
11 |
Nitrogen injection line diameter |
DN25 |
|
|
12 |
Oil drain line diameter |
DN125 |
|
|
13 |
Oil-gas separator volume |
3m³ |
|
V. Scope of Supply
|
No |
Name and Specifications |
Unit |
Quantity |
Remarks |
|
1 |
Nitrogen storage cabinet |
set |
1 |
1900×1000×600 |
|
2 |
Decompression chamber |
set |
3 |
Main body, on load switch, etc |
|
3 |
Block valve |
set |
1 |
DF-80 |
|
4 |
Oil and gas separation injection |
set |
1 |
|
|
5 |
control cabinet |
set |
1 |
800*600*2260mm |
|
6 |
Oil discharge pipeline and accessories |
set |
1 |
|
|
7 |
Nitrogen injection pipeline and accessories |
set |
1 |
|
|
8 |
Other installation accessories |
set |
1 |
VI. Optional Customization Solutions
We offer comprehensive customization services, precisely matching everything from the installation environment to basic parameters to ensure seamless integration of equipment with site conditions and efficient, reliable operation.
- Installation Environment Customization: We can adapt the design to the specific site conditions, including site dimensions, spatial layout, and ambient temperature (e.g., low or high temperature conditions), ensuring smooth equipment installation and compatibility.
- Basic Parameter Customization: We can flexibly adjust key indicators such as design oil discharge volume (maximum/rated/minimum), oil discharge pressure, inlet and outlet pipe diameters, and DC specifications of the control cabinet to meet diverse operational needs.
VII. Quality
Products using this device have generally passed ISO9001, ISO14001, and ISO45001 system certifications. Before leaving the factory, all products undergo withstand voltage, insulation, and operational reliability tests, and some have also passed the testing of the National Fixed Fire Extinguishing System and Fire-Resistant Components Quality Supervision and Inspection Center.
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 Nexif 74MW photovoltaic project in the Philippines is equipped with transformer explosion protection device. We provide one-on-one services based on the customer's project site situation, and cooperate with the customer to provide services throughout the entire process from design stage, product production stage, equipment installation stage, and equipment debugging stage. Greatly meeting the customer's requirements.
IX. Application Scenarios
Nitrogen Fire Suppression System is a fixed fire suppression solution for oil-immersed transformers and reactors. Its operation, which first drains oil and then injects nitrogen, leverages inert gas to both lower oxygen levels for fire suffocation and agitate/cool the insulating oil. This dual-action mechanism is effective in both pressure release to prevent explosions and actively combating fires.
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
To ensure the correct installation and operation of the Transformer Explosion Protection, please follow the 5 core steps below. For detailed instructions, including safety precautions and technical diagrams, please refer to the full product manual.
5 Core Steps for System Setup:
- Routine Maintenance
- Component Inspection
- Nitrogen Replenishment
- Nitrogen Filling
- Post-Fire Extinguishing Recovery
[Click here to view the complete product manual & detailed instructions]
XII. Packaging and Transportation
XIII. Factory Strength
1. Qualification Certificates
2. Innovative technologies/capabilities
(1) High-tech enterprise certificate
3. Supply Chain Advantages
Reliable Delivery, Driven by Lean Efficiency
Integrated Supply Chain & Lean Management
We maintain robust production capacity through streamlined supply chain integration and lean operations.
Strategic Inventory Management
Our dynamic safety stock system acts as a buffer against demand variability, securing material availability for urgent orders.
Efficient Logistics Network
Backed by an optimized logistics network, we guarantee reliable and on-time delivery to any project site.
Seamless Project Execution
By meeting diverse order requirements promptly, we support the smooth execution of customer projects, minimizing downtime and delays.
4. Professional production equipment (CNC)
XIV. FAQ
Q1: Does installing a transformer explosion protection device on an oil-immersed transformer require pre-reserved interfaces?
A1: Yes. The transformer needs to have one oil drain port, four nitrogen injection ports, one shut-off valve mounting position, and eight fire detector mounting nuts pre-reserved. Please confirm the specific locations and dimensions with our company.
Q2: How is the installation location of the fire cabinet determined?
A2: It needs to be determined based on the site space, the transformer location, and the pre-reserved oil drain ports. The fire cabinet should typically be 3-8 meters away from the transformer's oil drain port.
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