Single phase pole mounted transformers from YAWEI can meet with various international standards such as ANSI, IEEE, CSA, IEC and DOE.
From design solution to equipped delivery, YAWEI is expertised in export worldwide for years.
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Description
Technical Parameters
Jiangsu Yawei Transformer Co.,Ltd. is one of the leading manufacturers and suppliers of 50kva single phase pole mounted transformers in China. Please feel free to buy high quality 50kva single phase pole mounted transformers from our factory. Customized orders are welcome.
Products Description
YAWEI Transformer's 50 kVA single-phase pole mounted transformer, is certified with UL listing and backed by CESI inspection report. With a wide voltage range of 2.4-34.5kV, the transformer adheres to various international standards such as ANSI, IEEE, CSA, IEC, and DOE, ensuring global compatibility and performance.Drawing on 30 years of expertise in design and export, the YAWEI Transformer team is equipped to cater to diverse requirements, offering customizable solutions for special transformers. With a strong commitment to customer satisfaction and quality, YAWEI Transformer delivers reliable, efficient, and safe products to meet the unique needs of clients worldwide.
Primary Voltage Ratings: 13.8 kV/12.47kV/2.4/7.2kV/14.4kV/24.94kV/34.5kV/27.6kV,ect
Secondary Voltage Ratings: 120/240V; 240/480V;347/600Y;277V;347V
H.V. TAP RANGE: 2280-36225V
CONNECTION TYPE: Ii0/Ii6
TYPE: Conventional/CSP
BIL: 30-150kV
Standards: IEEE/ANSI/CSA/IEC/DOE
Application: Distribution,Ultilities
Technical spec for single phase pole mounted transformer
1.Quality management system GB/T 19001-2016 ISO 9001: 2015
The operation of the whole YAWEI system is strictly controlled and managed. This ensures the quality of products and material in all stages, from receiving customer requests to design, materials, production, installation, testing, packaging, delivery, after-sales, all of which operate under strict and logically linked processes.
2.CERTIFICATEOFCOMPLIANCE of UL and CUL
YaWei pad mounted transformer have been evaluated by UL in accordance with the U.S and Canada Standard(s). Our transformer certified by UL based on Canadian standards (CSA standards) .
3.Accreditation certificate CE
Standard: EN 60076-1:2011.EN 60076-2:2011EN 60076-14:2013 confirms that YAWEI technical quality meets the requirements of all specific international standards for testing and calibration laboratories. All YAWEI products are fully tested in a qualified testing room before leaving the factory, ensuring stable quality and providing absolute peace of mind for customers.
Manufacturing site photos
Electromagnetic wire manufacturing process
Oil tank manufacturing process
Configuration fin/ radiator manufacturing process
Winding process
Active part installation
Single phase pole mounted transformer packing (customized)
FAQ
Q: 1.What are the 3 types of transformers?
A: Transformers, which are critical components in electrical power systems, come in various types depending on their design, function, and application. Power Transformers: Function: Used primarily in electrical power transmission networks to step-up (increase) or step-down (decrease) voltage levels. Characteristics: They are generally large, have high power ratings, and are designed for continuous operation at high efficiency. Location: Commonly found in power generation stations and at key points in transmission networks. Distribution Transformers: Function: Used to step down the voltage for electricity distribution to homes, businesses, and other end users. Characteristics: They are smaller than power transformers and are designed to provide the final voltage transformation in the electric power distribution system. Location: Typically found on utility poles, in underground vaults, or in small substations in residential or commercial areas. Instrument Transformers: Subtypes: Includes Current Transformers (CTs) and Potential Transformers (PTs) or Voltage Transformers (VTs). Function: Used for measurement and protective relay functions in electrical networks. Current Transformers (CTs): Designed to provide a current in its secondary coil proportional to the current flowing in its primary coil. They are used for measuring large currents and for protection relaying in high voltage circuits. Potential Transformers (PTs) or Voltage Transformers (VTs): Provide a scaled-down voltage that is proportional to the voltage in the circuit they are connected to, facilitating safe measurement and monitoring. Each type of transformer serves a specific role in the electrical power system, with power transformers being integral for long-distance transmission, distribution transformers essential for local power delivery, and instrument transformers critical for accurate measurement and system protection.
Q: 2.How does a pole transformer work?
A: A pole transformer, commonly seen on utility poles in residential and commercial areas, is a type of distribution transformer that steps down the high voltage from the electrical grid to a lower voltage suitable for use in homes and businesses. High Voltage Input: The transformer receives high-voltage electricity from power lines. This voltage is typically in the range of thousands of volts (for example, 7,200 volts), which is too high for direct use in homes or businesses. Step-Down Transformer: The pole transformer is essentially a step-down transformer. It has two sets of coils or windings – primary and secondary – wound around a magnetic core. The primary winding is connected to the high-voltage power line, and the secondary winding is connected to the local distribution network. Voltage Reduction: The transformer operates on the principle of electromagnetic induction. The high voltage in the primary winding creates a magnetic field in the core, which then induces a lower voltage in the secondary winding. The ratio of the number of turns in the primary coil to the number of turns in the secondary coil determines the amount of voltage reduction. Energy Transfer: The energy is transferred from the primary winding to the secondary winding through the magnetic field, without a direct electrical connection between the two. This reduces the high input voltage to a lower output voltage. Low Voltage Output: The output voltage is reduced to a level suitable for domestic use, typically around 120/240 volts in North America or 230/400 volts in many other countries. This lower voltage is then distributed to homes and businesses through the local electrical grid. Safety and Insulation: The transformer is designed with safety features, including insulation and grounding, to protect against electrical hazards. Additionally, pole transformers are usually equipped with fuses or circuit breakers to prevent damage in case of overloads or faults. Pole transformers are essential in the distribution network, enabling the safe and efficient delivery of electricity to end-users. They are designed to be robust and reliable, often withstanding various environmental conditions while providing continuous service.
Q: 3.How many houses can a 50 kVA transformer supply?
A: The number of houses a 50 kVA (kilovolt-amperes) transformer can supply depends on several factors, including the average electricity consumption per house, the peak load of each house, and the overall load balance. However, a rough estimate can be made with some general assumptions. Average Household Electricity Consumption: This varies greatly by region, type of dwelling, and lifestyle. In the U.S., for example, the average household consumption is about 877 kWh per month, or roughly 1.2 kW continuous load. However, this number can be significantly lower in other countries or in energy-efficient homes. Transformer Capacity: A 50 kVA transformer can supply 50 kW under ideal conditions (assuming a power factor of 1, which is a simplification as actual power factors may be lower). Peak vs. Average Load: Not all houses draw their maximum load simultaneously. Typically, residential loads are diversified, meaning that the peak loads occur at different times. With these points in mind, let's do a rough calculation assuming an average continuous load of 1.2 kW per household: The transformer's total capacity is 50 kVA (or approximately 50 kW for simplicity). Dividing this capacity by the average load per house gives an estimate of the number of houses it can supply: This calculation provides a basic estimate, but actual numbers can vary. For more precise planning, factors like peak demand, local regulations, and safety margins should be considered. Additionally, in practice, utilities tend to plan for a lower load per transformer to ensure reliability and account for future increases in electricity demand.
Q: 4.Are pole-mounted transformers oil filled?
A: Yes, many pole-mounted transformers are oil-filled. The oil serves several important functions in these transformers: Insulation: The oil provides electrical insulation. It surrounds the internal components, such as windings and core, preventing electrical discharges and arcs within the transformer. Cooling: The oil also acts as a coolant. It absorbs the heat generated by the transformer during operation and helps in dissipating this heat. This is crucial for maintaining the transformer's temperature within safe operating limits. Protection: By filling the transformer casing, the oil protects the internal components from moisture, dust, and other contaminants that could affect the transformer's performance and lifespan. The type of oil used in transformers is a specialized insulating oil, typically a mineral oil, that is carefully refined to maintain its insulating properties and thermal stability. In recent years, there has been a move towards using biodegradable and less environmentally harmful oils, especially in transformers located in sensitive areas. These oil-filled transformers are designed with seals and protective measures to prevent oil leaks and are subject to regulations and regular maintenance to ensure their safe operation. In case of leaks or other issues, they require prompt attention to avoid environmental damage and operational hazards.
Q: 5.What is the maximum capacity of pole-mounted transformer?
A: The maximum capacity of pole-mounted transformers can vary, but they typically range up to about 500 kVA (kilovolt-amperes). The most common sizes for residential areas are in the range of 25 kVA to 100 kVA. Larger capacities, such as 250 kVA to 500 kVA, might be used in areas with higher load demands, like commercial zones or densely populated residential areas. The capacity of a pole-mounted transformer is chosen based on several factors: Electrical Load Demand: The total electrical load of the area it serves, which includes residential homes, commercial buildings, street lighting, etc. Peak Load Considerations: The maximum load that might be expected at any one time. Utilities often use load factor and diversity factor calculations to estimate this. Future Growth: Anticipated increases in demand due to area development or population growth. Physical Size and Weight Constraints: Pole-mounted transformers must be physically supported by utility poles, so there's a practical limit to their size and weight. Safety and Efficiency: Larger transformers may be more efficient in terms of losses but have to be balanced against the cost and practicality of installation and maintenance. While 500 kVA could be considered a rough upper limit for pole-mounted transformers, the specific maximum capacity will depend on the manufacturer's design and the utility company's requirements and standards. For loads requiring more than what a single pole-mounted transformer can handle, multiple transformers may be used, or the installation might shift to a ground-mounted or substation solution.
