Low Noise Operation 400KVA Single Phase Pole Mounted Transformer 11kV / 230 V for Utility Power Distribution Manufacture
Low Noise Operation 400KVA Single Phase Pole Mounted Transformer 11kV/230V for utility power distribution. Features high reliability, low noise design, high temperature resistance, compact structure, long service life, and strong overload capacity. Customized options available with IEC60076 standard compliance.
The 315KVA Single Phase Pole Mounted Cylindrical Transformer is engineered for reliable overhead distribution networks, especially in rural electrification, utility grid expansion, and distributed energy systems. Designed for 11kV primary voltage and 230V secondary output, this transformer ensures stable performance under demanding environmental and load conditions.
With a compact pole-mounted structure and advanced low-noise design, it is ideal for residential power supply, remote communities, and industrial perimeter distribution. The unit adopts high-grade silicon steel cores, vacuum oil filling technology, and optimized thermal management to ensure long service life and minimal maintenance.
It is widely used by utilities, EPC contractors, and power distribution companies in high-temperature, coastal, and tropical regions where reliability and durability are critical.
- High Reliability for Utility NetworksDesigned for continuous operation in overhead distribution systems with stable voltage output.
- Low Noise Operation DesignOptimized core structure reduces vibration and audible noise, suitable for residential areas.
- High Temperature & Tropical Climate ResistanceSpecial insulation and cooling oil system ensure stable operation in extreme heat environments.
- Compact Pole-Mounted StructureEasy installation on utility poles, reducing land use and infrastructure costs.
- Long Service Life & Low MaintenanceVacuum oil filling technology and high-grade silicon steel core improve durability.
- Strong Overload CapacitySupports short-term overload conditions for peak electricity demand in rural grids.
| Item | Specification |
|---|---|
| Rated Capacity | 315 KVA |
| Phase Type | Single Phase |
| Primary Voltage | 11 kV (customizable) |
| Secondary Voltage | 230 V (or 120/240 V optional) |
| Frequency | 50Hz / 60Hz |
| Cooling Method | ONAN (Oil Natural Air Natural) |
| Insulation Class | Class A / Class F optional |
| Core Material | High-grade grain-oriented silicon steel |
| Winding Material | Copper / Aluminum optional |
| Tank Type | Sealed cylindrical pole-mounted tank |
| Insulation Oil | Mineral oil / high-temperature resistant oil |
| Temperature Rise Limit | ≤ 55K / 65K optional |
| Noise Level | ≤ 55 dB (low noise design) |
| Impedance Voltage | 3.5% – 5% (customizable) |
| Protection Level | IP54 (outdoor use) |
| Mounting Type | Pole-mounted (horizontal/vertical optional) |
| Standard Compliance | IEC 60076 / IEEE / ANSI optional |
| Surge Protection | Lightning arrester compatible design |
| Ambient Temperature | -40°C to +55°C (tropical design available) |
In countries such as Middle East, Southeast Asia, Africa, and Latin America, utility transformers face critical challenges:
- Excessive ambient temperature causing oil overheating
- High risk of insulation aging and thermal breakdown
- Increased probability of transformer self-heating and fire risk
- Voltage instability under peak load conditions
- Corrosion in humid and coastal environments
- High-Temperature Resistant Insulation SystemEnhanced insulation paper and varnish system improves thermal endurance and prevents breakdown in extreme heat.
- Anti-Overheating Oil Circulation DesignOptimized tank structure improves natural convection cooling efficiency.
- Explosion-Proof Pressure Relief DeviceBuilt-in safety protection reduces internal pressure buildup and prevents failure risks.
- Anti-Corrosion Outdoor Tank CoatingSpecial epoxy coating protects against humidity, salt spray, and coastal corrosion.
- Low Loss Core DesignReduces heat generation during operation, improving efficiency and extending lifespan.
- Thermal Monitoring CompatibilityOptional sensor integration for real-time temperature monitoring in EPC smart grid systems.
Q1: Can this transformer operate in high-temperature environments above 50°C?
Yes, it is specifically designed for tropical and desert climates with reinforced insulation and high-temperature oil systems.
Q2: Is this model suitable for rural electrification projects?
Yes, it is widely used in rural grid expansion due to its low maintenance and pole-mounted design.
Q3: Can you customize voltage ratings for different countries?
Yes, we provide full customization for 10kV, 11kV, 13.2kV primary and different secondary outputs.
Q4: What is the expected service life?
Under normal operation, the transformer can operate reliably for 25–30 years.
Q5: Is it resistant to coastal corrosion?
Yes, the tank uses anti-corrosion coating suitable for coastal and high humidity environments.
Q6: Do you support OEM/ODM for EPC projects?
Yes, we provide full OEM/ODM customization for utility companies and EPC contractors.
HENTG Power is a professional transformer manufacturer specializing in custom-engineered power distribution solutions for global energy infrastructure projects. With strong engineering capability and advanced production facilities, we supply a full range of transformers including oil-immersed transformers, dry-type transformers, pad-mounted transformers, and pole-mounted distribution transformers.
Our products are widely used in utility grid expansion, renewable energy systems, industrial power distribution, and rural electrification projects across Asia, Africa, the Middle East, and the Americas.
We follow strict international standards including IEC 60076, ANSI, and IEEE, ensuring each transformer meets high performance, safety, and durability requirements.
With a strong focus on OEM/ODM customization, fast delivery, and EPC project support, HENTG Power is committed to becoming a trusted global partner for power infrastructure development.
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