The 50kVA Conventional Single Phase Pole Mounted Transformer is designed for reliable overhead power distribution in utility, residential, rural and light commercial networks. Its sealed oil-immersed construction provides efficient cooling, low losses and dependable outdoor operation. Primary and secondary voltages, frequency, bushings, tap settings, insulation fluid and accessories can be customized to meet IEC, IEEE or ANSI requirements.
The 50kVA Conventional Single Phase Pole Mounted Transformer is designed to step medium-voltage power down to a stable low-voltage supply for overhead distribution networks. It is widely used by utilities, electrical distributors and EPC contractors in residential communities, rural electrification projects, commercial facilities and light industrial applications.
The transformer features a compact cylindrical steel tank suitable for outdoor pole installation. Its oil-immersed, self-cooled construction provides effective heat dissipation, reliable insulation and stable performance under changing loads. A low-loss magnetic core and precisely manufactured windings help reduce energy consumption, temperature rise and operating noise.
Unlike a completely self-protected (CSP) transformer, the conventional model normally relies on externally coordinated protective devices such as surge arresters, cutout fuses and secondary protection. This straightforward configuration allows utilities to select and maintain protection equipment according to their existing distribution standards.
Primary voltage, secondary voltage, frequency, tap range, winding material, bushing arrangement and insulation fluid can be customized for different markets. Common secondary configurations include 120/240V split phase, while other voltage ratios are available according to project requirements. Mineral oil and environmentally friendly insulating fluids can also be specified.
Each transformer is manufactured and routinely tested according to the applicable IEC, IEEE or ANSI standard. With its durable enclosure, corrosion-resistant finish and flexible electrical configuration, the 50kVA conventional single-phase pole-mounted transformer provides a practical and dependable solution for long-term outdoor power distribution.
Zisheng are a professional 19+ years manufacturer in producing Oil-Immersed Transformers, Compact Substation, Pad Mounted Transformers, Pole Mounted Transformers and Dry Type Transformers. We own the certificates of ISO/CE/IEC 60076 and TUV Rheinland.
Transformers undergo rigorous FAT and type testing, support voltage/capacity customization. Welcome to consult for Catalog and Product. you can contact us at email [email protected].
A regional utility in [Country/Region] required compact and reliable transformers to upgrade its overhead distribution network. The equipment needed to provide stable single-phase power for residential properties, small businesses and public facilities while operating reliably in outdoor conditions.
Zisheng Electric supplied customized 50kVA Conventional Single Phase Pole Mounted Transformers with low-loss cores, durable sealed tanks and corrosion-resistant surface coatings. The bushing arrangement, tap settings, mounting brackets, nameplates and terminal configuration were produced according to the utility’s technical requirements.
Each transformer underwent routine electrical testing before shipment, including winding resistance, voltage-ratio, insulation resistance, no-load loss, load loss and induced-voltage tests. Inspection documents and test reports were provided for project approval.
The transformers provided a dependable low-voltage supply while simplifying pole installation and integration with the customer’s existing external protection system. Their efficient oil-immersed design helps reduce operating losses and supports long-term service in rural and residential distribution networks.
| Parameter | Standard Specification / Available Options |
|---|---|
| Product Type | Conventional single-phase pole-mounted transformer |
| Rated Capacity | 50kVA |
| Phase | Single phase |
| Primary Voltage | 2.4kV–34.5kV, customizable |
| Common Primary Ratings | 7.2kV, 7.62kV, 11kV, 13.2kV, 13.8kV, 22.86kV or 24.94kV |
| Secondary Voltage | 120/240V, 240/480V, 230V or customized |
| Frequency | 50Hz or 60Hz |
| Cooling Method | ONAN—Oil Natural Air Natural |
| Insulation Fluid | Mineral oil or natural ester fluid |
| Winding Material | Copper or aluminum |
| Core Material | High-permeability, low-loss silicon steel |
| High-Voltage Bushings | Single-bushing or dual-bushing configuration |
| Low-Voltage Terminals | Two-terminal or three-terminal split-phase arrangement |
| Tap Changer | Off-circuit tap changer |
| Tap Range | Typically ±2 × 2.5%; customizable |
| Temperature Rise | 55°C or 65°C |
| Impedance | Designed according to the specified voltage and applicable standard |
| Tank Construction | Sealed cylindrical steel tank |
| Tank Finish | Corrosion-resistant outdoor powder or liquid coating |
| Installation Method | Outdoor pole mounting |
| Standard Operating Altitude | Up to 1,000m; high-altitude design available |
| Ambient Temperature | Typically −25°C to +40°C; customized designs available |
| Protection Arrangement | External fuse, surge arrester and secondary protection coordinated by the utility |
| Standard Accessories | Lifting lugs, grounding terminals, mounting brackets, nameplate and pressure-relief device |
| Optional Accessories | Surge arrester brackets, bird guards, terminal covers, oil-level indicator and special connectors |
| Applicable Standards | IEC 60076, IEEE C57.12.20, IEEE C57.12.90 or customer-specified standards |
| Application | Utility grids, rural electrification, residential areas and light commercial distribution |
All specifications can be customized according to the customer’s electrical system, utility requirements and approved technical drawings.
The 50kVA Conventional Single Phase Pole Mounted Transformer is suitable for overhead distribution systems that require compact installation, reliable voltage conversion and economical power delivery. Typical applications include:
Its configurable voltage ratio, frequency, bushings, tap settings and mounting arrangement make it suitable for utility and project requirements across different countries and regions.
It is a single-phase oil-immersed transformer installed on a utility pole to convert medium-voltage electricity into low voltage for residential, agricultural and small commercial loads.
A conventional transformer normally uses externally installed fuse cutouts, surge arresters and secondary protection. A CSP transformer usually integrates some of these protective devices into the transformer.
Primary voltages from 2.4kV to 34.5kV are available. Common ratings include 7.2kV, 7.62kV, 7.97kV, 12.47kV, 13.2kV, 13.8kV, 14.4kV and 24.94kV.
Common secondary voltages include:
At the full 240V winding, the approximate rated current is 208.3A. For a centre-tapped system, load balancing between the two 120V sections must be considered.
Yes. Both copper and aluminum windings are available. Selection depends on the utility specification, efficiency requirement, transformer weight and project budget.
Yes. The transformer can be designed for either 50Hz or 60Hz. The required frequency must be confirmed before production.
The standard cooling method is ONAN—Oil Natural Air Natural. It uses natural oil circulation and surrounding air without fans or pumps.
Standard mineral transformer oil and natural ester fluid are available. Natural ester fluid may be selected for improved fire safety and environmental performance.
Yes. Both single-bushing and dual-bushing primary configurations can be supplied according to the utility grounding system.
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