200kVA Single Phase Pole Mounted Transformer
NPC ELECTRIC'S 200kVA single phase pole mounted transformer delivers exceptional reliability for demanding overhead power systems. It efficiently converts primary voltages like 11kV or 22kV to secondary levels such as 220V or 400V, supporting heavier loads in diverse environments. Constructed with low-loss grain-oriented steel cores and high-grade aluminum conductors, it achieves superior energy efficiency and reduced operational costs. Meeting ANSI/IEEE C57 standards, the weatherproof enclosure ensures protection against elements, with a 55°C temperature rise and ONAF cooling for enhanced performance. Essential safety integrations include overload fuses and oil level gauges, making it suitable for utilities aiming for minimal downtime. This transformer excels in providing stable power with low harmonic distortion, ideal for modern grid upgrades.
- Primary Voltage Ratings 2.4kV, 11kV, 33kV, 34.5kV
- Secondary Voltage Ratings 480-240/240-120 or customized
- H.V. Tap Range ± 2×2.5% HV taps or others
- Type Conventional Type
- BIL 30-150kV
- Standards IEEE, ANSI, NEMA, ASTM
- Application workshops, retail outlets, public facilities
- Power Rating 200kVA
- Certificate CE, ISO
- Cooling Method ONAN, KNAN
- Oil Mineral Oil or FR3
- Opeartion Step Down
Technical Specifications
Customization Optional
Packing and Shipping
Manufacturer Test
Routine Testing
Application
Technical Specifications
200kVA Single Phase Pole Mounted Transformer
Technical Specifications
Accessories
| Rated Power | 200 kVA |
| Rating Primary Voltage | 12.4-34.5kV |
| Secondary Voltage | 480-240V 240-120V 277V Customized |
| Frequency | 50/60Hz |
| Vector Group | Ii0,Ii6 |
| Winding Material | Aluminum/Copper |
| Efficiency | As IEEE,Doe 2016,CAS Std or Customized |
| Impedance Voltage | Nominal 2% or Customized 1.1-5.75% |
| Altitude | ≤1,000m or Customized |
| Color | ANSI 70 Light gray/Munsell 7GY3.29/1.5 or customized etc |
| Tank material | Mild Steel, 304 Stainless Steel |
| Insulating Oil Weight | 158 kg |
| Total Weight | 720 kg |
| Outline Dimensions（W×D×H） | 805×900×1435 (mm) |
| Lifting Lug |
| Tap Changer |
| Pressure Relief Valve |
| Tank Cover and clamp |
| L.V Bushing |
| HV Bushing |
| Ground Strap |
| Nameplate |
| Non-PCB decal |
| High Voltage Warning Signs |
| Suport lug |
| Oil fill valve |
Customization Optional
200kVA Single Phase Pole Mounted Transformer
Transform your electrical infrastructure with our adaptable 200kVA single phase pole mounted transformer, featuring a wide array of customization to align with unique operational needs. Select from primary voltage ranges of 6.6kV to 33kV, including standards like 11kV or 20kV, matched to secondary voltages such as 220V, 380V, or 440V for precise compatibility in various networks. Conductor choices between aluminum for lightweight efficiency and copper for maximum conductivity allow optimization based on budget and load demands. Adapt to 50Hz or 60Hz frequencies effortlessly, and upgrade cooling from basic ONAF to include auxiliary fans for extreme heat conditions. Incorporate adjustable tap changers with up to seven steps for dynamic voltage control, and customize impedance from 4% to 6% to manage short-circuit currents effectively. Safety upgrades like integrated circuit breakers, grounding switches, or expulsion fuses enhance protection in volatile areas. For sustainability, switch to natural ester fluids over traditional oils, offering better fire safety and biodegradability. These tailored elements not only improve system resilience but also promote energy conservation, extending service life in rugged terrains and making it an excellent fit for contractors prioritizing versatility and long-term value in pole-mounted setups.
Enhance functionality further with enclosure enhancements, including powder-coated finishes for corrosion resistance or louvered vents for humid regions. Embed smart sensors for IoT-enabled monitoring of oil temperature and load levels, facilitating predictive maintenance. Adjust kVA ratings slightly to 225kVA for scalability, and select core laminations with anti-vibration designs to lower noise emissions. Impedance matching ensures seamless integration with renewable sources like wind turbines. Whether for expanding suburbs or industrial parks, these options guarantee the 200kVA single phase pole mounted transformer meets stringent requirements, delivering efficient, safe, and customizable power solutions that boost overall grid performance and reduce maintenance overheads in overhead distribution networks.
Packing and Shipping
200kVA Single Phase Pole Mounted Transformer
Packaging for the 200kVA single phase pole mounted transformer prioritizes protection through robust, multi-layered crates made from treated plywood and metal reinforcements to handle heavy weights. Internal cushioning with polyethylene foam and corner protectors absorbs shocks, while silica gel packets and vapor corrosion inhibitors maintain dryness and prevent rust. Oil is drained partially for transport safety, with ports sealed using rubber gaskets, and the unit is pressurized with dry air at 15-25kPa to avoid condensation. Forklift-compatible bases and crane hooks enable easy loading, and all labels comply with international shipping norms, including weight, dimensions, and fragility warnings. This comprehensive packing strategy safeguards against vibrations and impacts during long-haul journeys, ensuring the transformer remains factory-fresh upon delivery.
Shipping logistics are meticulously planned for global reach, utilizing enclosed trailers for overland transport to secure against dust and rain, with tie-downs preventing shifts. For overseas, we opt for standard containers or break-bulk cargo on freighters, applying anti-humidity coatings for marine environments. Expedited air options are available for time-sensitive projects, though limited by cargo holds. Digital tracking systems provide real-time updates, and full-value insurance covers transit risks. Adherence to UN and IATA regulations facilitates quick customs processing, minimizing hold-ups for the 200kVA single phase pole mounted transformer in international markets.
Sustainability is embedded in our process, using eco-friendly, reusable packing materials and optimizing routes to cut carbon emissions. Shock indicators attached to crates record any mishandling, aiding claims if needed. Separate packaging for components like radiators or controls prevents damage, with inventory checklists for verification. Our experienced carriers specialize in oversized electrical equipment, following OSHA guidelines for safe handling. This approach not only preserves product quality but also streamlines costs through consolidated shipments, ideal for bulk orders to distant utilities.
Post-shipment support includes installation guides and virtual assistance for unpacking, with recommendations on torque settings and fluid refills. We collaborate with certified forwarders for door-to-site delivery, navigating challenging terrains. By focusing on efficiency and security, we ensure the 200kVA single phase pole mounted transformer arrives ready for deployment, supporting uninterrupted power infrastructure projects worldwide without logistical setbacks.
Shipping logistics are meticulously planned for global reach, utilizing enclosed trailers for overland transport to secure against dust and rain, with tie-downs preventing shifts. For overseas, we opt for standard containers or break-bulk cargo on freighters, applying anti-humidity coatings for marine environments. Expedited air options are available for time-sensitive projects, though limited by cargo holds. Digital tracking systems provide real-time updates, and full-value insurance covers transit risks. Adherence to UN and IATA regulations facilitates quick customs processing, minimizing hold-ups for the 200kVA single phase pole mounted transformer in international markets.
Sustainability is embedded in our process, using eco-friendly, reusable packing materials and optimizing routes to cut carbon emissions. Shock indicators attached to crates record any mishandling, aiding claims if needed. Separate packaging for components like radiators or controls prevents damage, with inventory checklists for verification. Our experienced carriers specialize in oversized electrical equipment, following OSHA guidelines for safe handling. This approach not only preserves product quality but also streamlines costs through consolidated shipments, ideal for bulk orders to distant utilities.
Post-shipment support includes installation guides and virtual assistance for unpacking, with recommendations on torque settings and fluid refills. We collaborate with certified forwarders for door-to-site delivery, navigating challenging terrains. By focusing on efficiency and security, we ensure the 200kVA single phase pole mounted transformer arrives ready for deployment, supporting uninterrupted power infrastructure projects worldwide without logistical setbacks.
32
32 years of industry experience
Manufacturer Test
200kVA Single Phase Pole Mounted Transformer
Progress Test
In the fabrication stage of the 200kVA single phase pole mounted transformer, initial progress tests focus on core lamination stacking, examining for uniform gaps and magnetic properties using a hysteresis loop tester to keep core losses under 1W/kg. Coil winding integrity is assessed via surge comparison testing, applying impulses to detect turn-to-turn faults with waveform deviations below 5%. Megger testing at 1000V DC between layers confirms insulation resistance over 500 megohms, identifying any contamination. Ratio error measurement with a bridge circuit verifies transformation accuracy within 0.2% across frequencies. Flux density checks use gaussmeters to ensure operation below saturation at 1.7T. Exciting current tests at 110% voltage limit inrush to 10 times rated, confirming design tolerances. Dielectric oil is tested for acidity below 0.01mg KOH/g and interfacial tension above 40mN/m. Mechanical inspections verify tank seam strength via ultrasonic scans, ensuring no voids, and bracket fittings are torque-tested to 50Nm. All data is logged for progressive quality assurance
Design Tests
All transformer will be test after finished the production, test items as below:
♦ Insulation Power Factor
♦ Ratio, Polarity, and Phase Relation
♦ Winding Resistance
♦ Impulse Tests
♦ On load Loss Test
♦ No Load Loss Test
♦ Leak Test
♦ DC Insulation Resistance Test
♦ Transformer Turns Ratio/TTR (All Tap Voltages)
♦ Impedance Voltage & Load Loss (Rated Voltage)
♦ Polarity, 1-Ph
♦ Excitation & No-Load Loss (Rated Voltage)
♦ Insulation Resistance (Rated Voltage)
♦ Temperature Rise
♦ Dielectric Withstand (Hipot)
Transformer Factory Acceptance Test
Factory acceptance testing for the 200kVA single phase pole mounted transformer starts with external audits, verifying overall weight, mounting holes, and labeling accuracy per client specs. Resistance measurements on windings use Kelvin bridges at corrected 85°C, with tolerances at 0.75%. Transformation ratio and phase tests via vector analyzers confirm single-phase polarity with errors below 0.3%. Power frequency withstand applies 28kV to primary for 60 seconds without arcing. Capacitance and dissipation factor scans at 12kV limit tan delta to 0.3%. Open-circuit tests measure no-load losses below warranted 500W at rated conditions. Short-circuit evaluations derive load losses and efficiency over 97.5%. Lightning impulse tests at 95kV BIL check waveform integrity. Corona inception voltage exceeds 1.2 times rated without discharge. Fluid analysis includes moisture content under 20ppm and PCB-free certification.
Routine Test - No Load Loss Test
Purpose of Testing
The purpose of No Load Loss Test is to measure the power loss of the equipment when it is not loaded to evaluate the iron loss and other core losses. This test can help understand the energy efficiency of the equipment and help determine the performance of the transformer or motor when it is running at no load.
Testing Equipment
No Load Loss tester (e.g. OMICRON, Megger, Schneider Electric, etc.)
Voltage source (usually 230V, 400V or customized according to customer requirements to adapt to different equipment)
Power analyzer (used to measure power loss and efficiency)
Ammeter and voltmeter
Temperature and humidity meter
Voltage source (usually 230V, 400V or customized according to customer requirements to adapt to different equipment)
Power analyzer (used to measure power loss and efficiency)
Ammeter and voltmeter
Temperature and humidity meter
Pre-Test Preparation
Disconnect the power supply of the device and ensure that the device is properly grounded and discharged to ensure safe operation.
Please ensure that the test is carried out in a suitable environment with a relative humidity of less than 75% and avoid rainy days or extreme weather (recommended temperature range: 20-30°C).
Please ensure that the test is carried out in a suitable environment with a relative humidity of less than 75% and avoid rainy days or extreme weather (recommended temperature range: 20-30°C).
Test Progress
Connect the Test Instrument:
Connect the test equipment to the high voltage side of the transformer, making sure the wiring is correct and the equipment is grounded.
Apply Test Voltage:
Usually it is 110% of the rated voltage, for example, if the rated voltage of the transformer is 33 KV, apply 36.3 KV (110%).
Connect the test equipment to the high voltage side of the transformer, making sure the wiring is correct and the equipment is grounded.
Apply Test Voltage:
Usually it is 110% of the rated voltage, for example, if the rated voltage of the transformer is 33 KV, apply 36.3 KV (110%).
Measure and Record
Start the test and record the following parameters:
No Load Current
No Load Loss
Power Factor
Current
Voltage
Temperature and Humidity
No Load Current
No Load Loss
Power Factor
Current
Voltage
Temperature and Humidity
Temperature Correction
The power loss of the test results is corrected to a reference temperature (usually 20°C) to ensure an accurate evaluation.
Repeat Testing (if necessary)
Test at different rated voltages, especially when the transformer has multiple capacity levels, and perform no-load loss tests for each capacity level separately.
Evaluation Criteria (Reference)
No-load loss ≤ 0.2% rated power (excellent)
No-load loss < 0.2% ≤ 0.5% rated power (good)
No-load loss > 0.5% rated power (further inspection or corrective action required)
No-load loss < 0.2% ≤ 0.5% rated power (good)
No-load loss > 0.5% rated power (further inspection or corrective action required)
*These comprehensive tests ensure that each transformer meets performance standards and operates
reliably under various conditions.
Application
Suited for medium industrial zones combined with municipal services, this 200kVA single phase pole mounted transformer supplies workshops, retail outlets, and public facilities, handling variable loads from manufacturing tools to LED lighting and backup generators in growing towns.
Technical Advantages
● 30+ years of manufacturing experience
● ISO and UL certified production
● Customized cable and transformer solutions
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What is a Transformer?A transformer is an electrical device used to change the voltage of alternating current (AC). It works on the principle of electromagnetic induction, converting high-voltage current into low-voltage current or low-voltage current into high-voltage current. Transformers are widely used in power transmission, distribution systems, and various electronic devices.
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What are the main uses of a transformer?The main use of a transformer is voltage conversion. Transformers are used in power transmission systems to help transfer electricity from power plants to consumers. In addition, transformers are also used in electronic devices such as chargers, televisions, power adapters, etc., to adjust the voltage to meet the requirements of different devices.
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Do you have UL listed?Yes, our transformer has UL listed. We have exported to America many pad mounted transformer,substation transformer and HV.
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