Simplify Your Grid. Specify the Single Phase Pole Mounted Transformer.
01 General
1.1 Project Description
50 kVA single phase pole mounted transformer was delivered to Canada in 2025. The rated power of the transformer is 50 kVA with ONAN cooling. The high voltage is 2.4 kV, the low voltage is 0.6 kV, they formed a vector group of Ii6.
Designed for resilience across key applications-including dense urban neighborhoods, expansive agricultural feeders, and critical commercial power supply-this transformer combines an Internal Fault Detector (IFD) with Anti-Tracking insulation. The IFD provides predictive intelligence to shift maintenance from reactive to proactive, reducing outage times, while the Anti-Tracking housing ensures unwavering performance in polluted or high-humidity areas. This dual technology directly lowers the total cost of ownership for utilities and strengthens community power reliability.
1.2 Technical Specification
167 kVA pole mounted transformer specifications type and data sheet
| Delivered to | Canada |
| Year | 2025 |
| Type | Pole mounted transformer |
| Standard | CSA C2.2-06 |
| Rated Power | 50 kVA |
| Frequency | 60HZ |
| Phase | 1 |
| Polarity | Additive |
| Cooling Type | ONAN |
| Primary Voltage | 2.4 kV |
| Secondary Voltage | 0.6 kV |
| Winding Material | aluminum |
| Vector Group | Ii6 |
| Impedance | 2.1%(±10%) |
| Tap Changer | N/A |
| No Load Loss | 0.044 kW |
| On Load Loss | 0.7 kW |
1.3 Drawings
50 kVA pole mounted transformer diagram drawing and size.
02 Manufacturing
2.1 Core
| The transformer features a wound core made of grain-oriented silicon steel. This seamless design minimizes core loss and magnetizing current, boosting efficiency. It also reduces operating noise and enhances mechanical durability for a longer service life. |  |
2.2 Winding
 | This transformer utilizes advanced aluminum windings, with the low-voltage winding made as a layered foil and the high-voltage winding as a helical coil. This foil-and-wire combination ensures excellent mechanical strength and efficient heat dissipation. The all-aluminum construction offers a lightweight and cost-effective solution without compromising performance. |
2.3 Tank
| Built for ultimate durability, this transformer features a tank made entirely of stainless steel. This material choice offers superior structural integrity and resistance to weathering and chemical corrosion. The seamless, welded construction guarantees leak-proof operation and reliable performance in the most demanding outdoor applications. |  |
2.4 Final Assembly
 | The final assembly of the single-phase pole-mounted transformer integrates the core-and-coil unit, meticulously pre-tested, into the stainless steel tank which is then filled with purified dielectric fluid. This critical process is performed under strict vacuum drying to eliminate moisture, ensuring optimal insulation integrity. Key external components-bushings, IFD and anti-tracking-are then securely installed, culminating in a fully sealed, robust, and reliable unit ready for several decades of service. |
03 Testing
The single-phase pole-mounted transformer (model: 50kVA-2.4/0.6kV) by SCOTECH adhered to CSA C2.2-06(R2022) and CSA C802.1-13(R2022) standards. Routine tests included winding resistance measurement (HV: 0.5552Ω, LV: 36.26mΩ at 31℃), ratio test (deviation: -0.02% ≤ 0.5%, vector group: Ii6), polarity test (additive, compliant), no-load test (loss: 40W within +15% tolerance, current: 0.95%), load test (loss: 602W at 85℃, impedance voltage: 2.15% within ±10% tolerance, total loss: 642W, efficiency: 99.30% ≥ 99.20%), applied voltage test (LV: 10kV for 60s, no collapse), induced voltage withstand test (1.2kV at 150Hz for 48s, no collapse), insulation resistance measurement (LV-HV to ground: 89.9GΩ), 20kPa pressure leak test (12h, no leakage/deformation), and oil test (dielectric strength: 57.4kV, moisture: 9.4mg/kg, etc.).
| No. | Test Item | Unit | Acceptance Values | Measured Values | Conclusion |
| 1 | Resistance Measurements | / | / | / | Pass |
| 2 | Ratio Tests | / | The deviation of voltage ratio on the principal tapping: ≤0.5% Connection symbol: Ii6 | -0.02 | Pass |
| 3 | Polarity tests | / | Additive | Additive | Pass |
| 4 | No-load losses and excitation current | % | I0 :: provide measured value | 0.95 | Pass |
| kW | P0: provide measured value | 0.040 | |||
| / | the tolerance for no load loss is +15% | / | |||
| 5 | Load losses , impedance voltage,total losses and efficiency | / | t:85℃ the tolerance for impedance is ±10% the tolerance for total load loss is +8% | / | Pass |
| % | Z%: measured value | 2.15 | |||
| kW | Pk: measured value | 0.602 | |||
| kW | Pt: measured value | 0.642 | |||
| % | Efficiency not less than 99.20% | 99.30 | |||
| 6 | Applied Voltage Test | / | LV: 10kV 60s | No collapse of the test voltage occurs | Pass |
| 7 | Induced Voltage Withstand Test | / | Applied voltage (KV):1.2 | No collapse of the test voltage occurs | Pass |
| Duration(s):48 | |||||
| Frequency (HZ): 150 | |||||
| 8 | Insulation Resistance Measurement | GΩ | LV-HV to Ground | 89.9 | Pass |
| 9 | Leakage Test | / | Applied pressure：20kPA | No leakage and no Damage | Pass |
| Duration：12h | |||||
| 10 | Oil Test | kV | Dielectric Strength | 57.4 | Pass |
| mg/kg | Moisture Content | 9.4 | |||
| % | Dissipation Factor | 0.00251 | |||
| mg/kg | Furan Analysis | 0.03 | |||
| / | Gas Chromatography Analysis | / |
04 Packing and Shipping
4.1 Packing
| The single – phase pole – mounted transformer is packaged in a robust wooden case made of plywood. First, the transformer is wrapped in plastic sheeting to protect it from moisture and dust. The wooden case is reinforced with metal corners to boost structural stability during transportation, and it is marked with necessary handling symbols (like lifting indicators, recycling marks) and product information labels. Moreover, the case is placed on a wooden pallet, which allows for easy loading, unloading, and transportation via forklifts or pallet jacks. |  |
4.2 Shipping
 | For transportation under CIF Montreal, the single – phase pole – mounted transformers are shipped by sea. The seller is responsible for contracting with the carrier, paying the freight charges to Montreal Port, and obtaining marine insurance. The transformers are transported in line with maritime shipping regulations, with meticulous handling during vessel loading and transit to ensure they arrive at the Port of Montreal in good condition. |
05 Site And Summary
In summary, our single-phase pole-mounted transformer represents the optimal fusion of innovation, durability, and efficiency. With advanced features like the wound core for reduced losses, corrosion-resistant stainless steel tank, and a reliable aluminum foil-wound design, it is engineered to deliver superior performance and a lower total cost of ownership. This transformer is not just a component but a long-term, dependable asset for modernizing your grid infrastructure, ensuring safe and stable power delivery to communities for years to come.
