Transformer Cooling Fan for Offshore Platform — Manufacturer & Supplier
Vayuvents Pvt. Ltd. manufactures and supplies transformer cooling fans for offshore platform applications across India and export markets.
Offshore oil and gas platforms operate in the world's most corrosive environments — salt spray, humidity near 100 percent, and continuous vibration from ocean swells and onboard machinery. Transformer cooling fans for offshore applications must be engineered specifically for this environment.
Offshore platform power systems include platform main transformers, drilling rig motor drive transformers, accommodation platform supply transformers, and FPSO cargo pump motor transformers — all of which require forced-air cooling fans with marine-grade construction.
Vayuvents supplies marine-grade transformer cooling fans with epoxy-coated aluminium or stainless steel casing, IP56/IP65 motor enclosures, and stainless steel hardware throughout — meeting the corrosion resistance requirements of offshore oil and gas electrical specifications.
How It Works in This Application
Salt Corrosion Attack
Offshore salt spray at concentrations of 5 to 20 mg/m2/day rapidly attacks standard MS fan casings and aluminium impellers without marine-grade anti-corrosion protection.
Platform Vibration
Ocean swells, riser tensioners, and deck machinery transmit continuous vibration to platform transformers and their cooling fans — requiring vibration-resistant motor mounts and balanced impellers.
Limited Maintenance Access
Offshore platforms have limited maintenance crew and extended maintenance intervals — fans must operate reliably for 6 to 12 months between scheduled inspection visits.
Hazardous Area Compliance
Offshore platform areas near gas processing are classified hazardous (Zone 1 or Zone 2) — transformer cooling fans in these areas may require ATEX-certified motors.
Recommended Variants
Marine-Grade Radiator Fan
Epoxy-coated aluminium casing with SS hardware and IP56 motor — standard offshore transformer cooling fan.
Most RecommendedATEX Hazardous Area Fan
Ex-d flameproof motor with non-sparking SS impeller for Zone 1 and Zone 2 classified offshore areas.
High-Humidity Fan
IP65 sealed motor and tropicalized motor windings for very high humidity offshore environments.
SS316 Full Stainless Fan
Complete SS316L construction for the most severe offshore marine environments.
Technical Specifications
| Parameter | Specification |
|---|---|
| Airflow Capacity | 500 to 20,000 m3/hr per fan |
| Motor Power | 0.04 kW to 2.2 kW |
| Fan Diameter | 200 to 800 mm |
| Voltage | 415V / 230V 3-phase and single-phase |
| Motor Enclosure | TEFC IP55 as standard |
| Blade Material | Aluminium / PP |
| Standards | IS 4894, IEC 60076 |
Key Features
- Compact direct-drive design with motor integrated in fan hub — fits standard transformer radiator mounting brackets
- IP55 TEFC motor as standard for outdoor substation and industrial installation in all weather conditions
- Low-noise operation essential for transformer substations in residential and commercial areas
- Aluminium and PP blades are lightweight and non-sparking for safe electrical equipment mounting
- Thermal protector built into motor winding protects against overheating if airflow is obstructed
- Available in 415V 3-phase and 230V single-phase for compatibility with transformer auxiliary supplies
- Long-life factory-sealed bearings require no periodic lubrication for maintenance-free operation
- Works performance test certificate with measured airflow and motor power data
Industries That Use This Application
Fixed Offshore Platforms
Power transformer and drilling transformer cooling fans for fixed jacket and concrete gravity platform installations
FPSOs
Floating Production Storage and Offloading vessel main transformer and cargo pump transformer cooling fans
Drilling Rigs
Jack-up, semi-submersible, and drillship transformer cooling fans for drilling system power supply
Subsea Processing
Topside processing module transformer cooling fans for subsea production and boosting systems
Offshore Wind
Offshore wind turbine step-up transformer cooling fans and offshore substation transformer cooling
Accommodation Platforms
Hotel barge and accommodation platform transformer cooling fans for crew life support systems
HVDC Offshore
Offshore HVDC converter transformer cooling fans for offshore wind farm export cable systems
Offshore Construction
Construction support vessel and crane barge transformer cooling fans
✓ Supply & Support: Vayuvents manufactures offshore marine-grade transformer cooling fans at our Vasai, Mumbai works. We supply to offshore EPC contractors, oil companies, and marine equipment integrators across India. We can provide IEC, ATEX, and marine classification society documentation on request.
FAQs
Offshore transformer cooling fans require: (1) Epoxy-coated aluminium or SS316 casing to resist salt corrosion, (2) IP56 or IP65 motor enclosure for salt spray and water jet resistance, (3) Stainless steel hardware throughout — no carbon steel fasteners, (4) Tropicalized motor winding for high humidity operation, (5) Vibration-resistant bearing mounts, and (6) Marine-grade paint system meeting offshore coating specifications.
Offshore areas near gas processing, wellhead equipment, and drilling mud systems may be classified Zone 1 or Zone 2 under IEC 60079 hazardous area classification. Transformer cooling fans installed in these classified areas must have ATEX-certified Ex-d (flameproof) motors. Vayuvents supplies ATEX-certified fan variants for offshore hazardous area installations on request.
Offshore platforms experience continuous low-frequency vibration (0.5 to 5 Hz) from ocean swells plus higher-frequency vibration from topside machinery. Offshore transformer fans must withstand vibration levels of 2 to 5 mm/s RMS for continuous operation. Vayuvents offshore fans use anti-vibration mounts and dynamically balanced impellers rated for offshore vibration conditions.
Yes. Vayuvents can arrange third-party type testing and certification for marine classification society approval (Lloyd's Register, DNV, Bureau Veritas, ABS) for offshore transformer cooling fans. This requires the fan to be tested to the relevant marine IEC standard at an approved test laboratory. Lead time for class-approved supply is typically 8 to 12 weeks. Contact us for specific requirements.
Offshore maintenance schedules are typically 6-monthly or annual inspection visits. Vayuvents offshore transformer fans are designed for 12-month maintenance-free operation — requiring only visual inspection and impeller cleaning at each scheduled maintenance visit. Factory-sealed bearings eliminate the need for bearing greasing between maintenance visits.
Yes. Vayuvents supplies marine-grade transformer cooling fans for Indian offshore projects operated by ONGC, Reliance Industries, Vedanta, and other operators in Indian EEZ waters. We have supplied to Mumbai High, Krishna-Godavari, and Rajasthan onshore field electrical infrastructure projects.
Contact Vayuvents at enquiry@vayuvents.com or call +91 90961 88703. Share the platform type, transformer MVA rating, fan dimensions, hazardous area classification, and any marine classification or ATEX certification requirements. We will provide a marine-grade fan selection and commercial proposal within 48 hours.
