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The 500 kva oil filled transformer is a core piece of equipment for medium-capacity power distribution. Utilizing high-quality transformer oil as the insulation and cooling medium, it features excellent heat dissipation performance and stable overload capabilities. This 500 kva oil filled transformer is suitable for outdoor substations, medium-sized industrial park power distribution, urban distribution network upgrades, large commercial complexes, and medium-sized industrial enterprises that have higher requirements for power supply stability and medium power loads. It can operate stably for a long time in complex climatic environments ranging from -30℃ to 40℃, meeting the needs of medium-scale power transmission and distribution.
Core Parameters:
• Energy Efficiency: Tier 2 Efficiency (Complies with GB 20052-2024 "Minimum Allowable Values of Energy Efficiency and Energy Efficiency Grades for Power Transformers").
• Maintenance Features: Periodic Maintenance Design (requires periodic testing of transformer oil quality and sealing performance to extend equipment service life).
• Warranty Period: 3-Year Warranty (covers fault repair and replacement of core components, safeguarding users' long-term usage rights).
Product Features
Tier 2 efficiency design + copper wire windings reduce operational losses; the fully sealed oil tank reduces oil deterioration, and the equipment's design service life can reach more than 25 years.
Equipped with comprehensive protection devices (including Buchholz relay, pressure release valve, thermometer), the 500 kva oil filled transformer can monitor the equipment's operating status in real time, quickly cut off the circuit when a fault occurs to avoid accident expansion; the oil tank uses anti-corrosion steel, adapting to complex environments such as outdoor wind, rain, and dust.
The 500 kva oil filled transformer supports outdoor open-air installation without the need for a dedicated machine room, saving infrastructure costs; has a 1.2x overload capacity, capable of carrying excess loads for a short period during peak power consumption periods, ensuring the continuity of medium-capacity power supply.
The fully sealed structure reduces maintenance frequency, only requiring periodic testing of oil quality and sealing status, making the maintenance process simple; core components use mature technology, ensuring a low failure rate and controllable subsequent operation and maintenance costs.
Key Specifications (500 kva oil filled transformer)
Parameter | Typical Value | Description |
Rated Capacity | 500kVA | Maximum apparent power under long-term safe operation status, meeting the load requirements of medium power scenarios. |
Rated Voltage | High voltage 10kV, low voltage 0.4kV | Customizable 6kV, 11kV, 35kV and other high voltage levels according to user needs, adapting to different grid voltage standards. |
Vector Group | Dyn11 | Possesses strong resistance to unbalanced loads, zero-sequence current can flow smoothly, ensuring balanced three-phase load power supply. |
Short-Circuit Impedance | 4.5%~6.5% | A 500 kva oil filled transformer with an impedance of 5%~6% is commonly used in power distribution scenarios, effectively limiting short-circuit current and protecting the safety of downstream power distribution equipment. |
No-Load Loss | ≤ 0.95kW | Complies with Tier 2 energy efficiency standards, low electrical energy loss during no-load operation, long-term use can save a lot of electricity expenses. |
Load Loss | ≤ 5.1kW (75℃) | Copper wire windings reduce resistance loss, high energy conversion efficiency during load operation, reducing energy waste. |
Winding Temp. Rise | ≤ 65K (AN, Class A) | Complies with national standard limits, effectively controlling winding heating and avoiding insulation aging caused by high temperature. |
Noise Level | ≤ 58~63dB(A) | The 500 kva oil filled transformer adopts a low-noise core structure and shock absorption design, with noise reduced by 5dB compared with traditional models, effectively reducing environmental noise pollution. |
Full S13 Series Oil Immersed Transformer Technical Parameters
Capacity (kVA) | Impedance (%) | No-Load Loss (W) | Load Loss (W) | No-Load Current (%) | Dimensions W×D×H (mm) | Gauge (mm) |
| 30 | 4.0 | 80 | 630 / 600 | 1.2 | 790×580×910 | 400 |
| 50 | 4.0 | 100 | 910 / 870 | 1.2 | 830×600×970 | 400 |
| 63 | 4.0 | 110 | 1090 / 1040 | 1.0 | 850×630×1000 | 400 |
| 80 | 4.0 | 130 | 1310 / 1250 | 1.0 | 900×650×1000 | 400 |
| 100 | 4.0 | 150 | 1560 / 1500 | 0.8 | 950×700×1000 | 400 |
| 125 | 4.0 | 170 | 1890 / 1800 | 0.8 | 1100×800×1000 | 550 |
| 160 | 4.0 | 200 | 2310 / 2200 | 0.7 | 1200×900×1050 | 550 |
| 200 | 4.0 | 240 | 2730 / 2600 | 0.7 | 1300×1000×1050 | 550 |
| 250 | 4.0 | 290 | 3200 / 3050 | 0.7 | 1400×1050×1100 | 550 |
| 315 | 4.0 | 340 | 3830 / 3650 | 0.6 | 1500×1100×1150 | 660 |
| 400 | 4.0 | 410 | 4520 / 4300 | 0.6 | 1550×1150×1150 | 660 |
| 500 | 4.0 | 480 | 5410 / 5150 | 0.6 | 1650×1230×1200 | 660 |
| 630 | 4.5 | 570 | 6200 | 0.6 | 1600×1250×1250 | 820 |
| 800 | 4.5 | 700 | 7500 | 0.5 | 2100×1300×1650 | 820 |
| 1000 | 4.5 | 830 | 10300 | 0.5 | 2150×1350×1700 | 820 |
| 1250 | 4.5 | 970 | 12000 | 0.5 | 2200×1400×1900 | 820 |
| 1600 | 4.5 | 1170 | 14500 | 0.5 | 2300×1450×1900 | 820 |
| 2000 | 5.0 | 1360 | 18300 | 0.4 | 2100×2200×2100 | 820 |
| 2500 | 5.0 | 1600 | 21200 | 0.4 | 2150×2300×2200 | 820 |
* Data extracted from the S13 series oil immersed power transformer parameter table.
Detailed Description
The S13 type oil immersed transformer is a three-phase, fully sealed structure, copper-wound Tier 2 efficiency distribution transformer, which is currently the mainstream model in the domestic outdoor medium-capacity power distribution field. Its fully sealed oil tank design effectively prevents the transformer oil from oxidizing and dampening, significantly reducing the oil deterioration speed; the copper wire windings have low resistance characteristics, and combined with the high-efficiency radiator structure, they achieve low-loss operation. Compared with the traditional S11 type oil immersed transformer, the loss is reduced by about 20%.
This model, namely the 500 kva oil filled transformer, combines good overload capacity and environmental adaptability. It can work stably in a temperature range of -30℃ to 40℃, making it highly suitable for various challenging conditions. This 500 kva oil filled transformer is widely used in outdoor medium-capacity power transmission, medium-sized industrial power distribution, urban distribution network capacity expansion, and other scenarios, providing reliable power support for medium and high-power power consumption scenarios.
S11 Type 500kVA Core Parameters & Applicable Scenarios
Parameter | Typical Value | Description |
Energy Efficiency | GB 20052-2024 Tier 2 (NX2) | Adapts to basic energy-saving compliance requirements, balancing performance and budget. |
No-Load Loss | Approx. 0.75kW | Slightly higher loss than S13, satisfying basic medium-capacity distribution energy consumption needs. Operational energy cost is optimal. |
Load Loss (75℃) | Approx. 10.5kW | Consistent with the S13 model of the same capacity, ensuring stable energy consumption under load conditions. |
Partial Discharge | ≤ 10pC | Reliable insulation performance, ensuring basic operational safety and more reliable operation in various environments. |
Core Material | Normal High-Grade Silicon Steel | Medium-capacity balances magnetic permeability and cost, meeting conventional distribution working condition requirements. |
Applicable Scenarios | Limited budget, normal load ≤ 60% | Ideal for medium-capacity agricultural irrigation distribution, rural medium-capacity grid upgrades, and other basic grid distribution scenarios. Outstanding cost-effectiveness for low-load conventional working conditions. |
FAQ
A 500 kVA oil filled transformer is widely used in commercial and industrial power distribution systems, providing reliable voltage conversion for factories, hospitals, and data centers.
The 500 kVA oil filled transformer uses mineral oil for superior insulation and cooling, ensuring stable operation even under continuous high-load conditions without overheating.
The 500 kVA oil filled transformer price varies based on voltage class, accessories, and custom specifications. Contact us for a detailed quotation tailored to your project.
Yes, a 500 kVA oil filled transformer can be customized with special tap changers, protection relays, and enclosures to meet unique specialty transformer requirements.
A 500 kVA oil filled transformer needs periodic oil testing, insulation resistance checks, and visual inspections to ensure long-term reliability and performance.
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