Description
800 kVA 20 kV Pure Copper Oil-immersed Transformer – Industrial Power Distribution and Voltage Stabilization Equipment
Currently, conventional transformers in the power distribution industry generally suffer from high losses, poor load stability, and susceptibility to failure during long-term operation. Many companies face challenges such as insufficient equipment durability and weak adaptability to high-voltage conditions when expanding factory capacity or upgrading power grids. To address these issues, this 800 kVA 20 kV pure copper oil-immersed transformer utilizes all-pure copper winding technology and a new insulation and sealing structure, precisely adapting to high-voltage industrial power distribution scenarios. The equipment can perfectly coordinate with dry-type transformers, box-type substations, High And Low Voltage Switchgear, electric power converters, and Combined Photovoltaic Substations, and is widely used in factory power supply, photovoltaic power plants, urban and rural power grid upgrades, and high-voltage power distribution in industrial and mining enterprises. The product effectively reduces power transmission losses, continuously stabilizes output voltage, significantly reduces equipment failure rates and subsequent maintenance costs, and provides safe, efficient, and long-term transformer protection for various power systems.
Core Product Features
1. Low Energy Consumption and Energy Saving with Pure Copper Winding: The entire unit is wound with high-purity pure copper coils. Compared to aluminum wire equipment, it has superior conductivity and lower heat generation, significantly reducing losses under high-voltage loads. Long-term use can effectively save on enterprise power consumption. It is suitable for 20 kV high-voltage stable transformer requirements and operates smoothly without overload risk under full-load 800 kVA conditions.
Usage Tips
1. Compatible Installation Specifications: The equipment must be installed with the corresponding High And Low Voltage Switchgear and Box Type Substation. The installation environment should be kept dry and well-ventilated, avoiding areas with dust or corrosive gases to prevent affecting insulation performance and equipment lifespan.
Frequently Asked Questions (FAQ)
Q1: What are the suitable application scenarios for this 20 kV oil-immersed transformer?
A1: The product has a rated capacity of 800 kVA and a high voltage of 20 kV. It is highly versatile and can be used in industrial plant power supply, photovoltaic Energy Storage power stations, urban and rural power grid upgrades, mine power distribution, and other scenarios. It can be used in conjunction with Combined Photovoltaic Substations, Electric Power Converters, and other photovoltaic power equipment, adapting to most high-voltage power distribution conditions.
Q2: Is daily maintenance of pure copper winding equipment difficult?
A2: The equipment has a stable structure and strong sealing, making daily operation and maintenance simple. Only periodic checks of the insulating oil level, casing sealing, and terminal condition are required. Compared to ordinary equipment, the failure rate is lower, eliminating the need for frequent maintenance and significantly saving maintenance manpower and costs.
Q3: Does the product support customization and after-sales service?
| Rated Capacity (kVA) | HV Rated Voltage (kV) | HV Tapping Range | LV Rated Voltage (kV) | Vector Group | Level 1 No-Load Loss (kW) | Level 1 Load Loss (kW) | Level 2 No-Load Loss (kW) | Level 2 Load Loss (kW) | Level 3 No-Load Loss (kW) | Level 3 Load Loss (kW) | Short-Circuit Impedance (%) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 30 | 20 | ±5% | 0.4 | Dyn11 / Yzn11 / Yyn0 | 0.08 | 0.621/0.594 | 0.08 | 0.690/0.660 | 0.1 | 0.690/0.660 | 5.5 |
| 50 | 20 | ±5% | 0.4 | Dyn11 / Yzn11 / Yyn0 | 0.104 | 0.909/0.864 | 0.104 | 1.010/0.960 | 0.13 | 1.010/0.960 | 5.5 |
| 68 | 20 | ±5% | 0.4 | Dyn11 / Yzn11 / Yyn0 | 0.12 | 1.080/1.040 | 0.12 | 1.200/1.150 | 0.15 | 1.200/1.150 | 5.5 |
| 80 | 20 | ±5% | 0.4 | Dyn11 / Yzn11 / Yyn0 | 0.144 | 1.290/1.230 | 0.144 | 1.440/1.370 | 0.18 | 1.440/1.370 | 5.5 |
| 100 | 20 | ±5% | 0.4 | Dyn11 / Yzn11 / Yyn0 | 0.16 | 1.560/1.490 | 0.16 | 1.730/1.650 | 0.2 | 1.730/1.650 | 5.5 |
| 125 | 20 | ±5% | 0.4 | Dyn11 / Yzn11 / Yyn0 | 0.192 | 1.870/1.780 | 0.192 | 2.080/1.980 | 0.24 | 2.080/1.980 | 5.5 |
| 160 | 20 | ±5% | 0.4 | Dyn11 / Yzn11 / Yyn0 | 0.232 | 2.290/2.180 | 0.232 | 2.540/2.420 | 0.29 | 2.540/2.420 | 5.5 |
| 200 | 20 | ±5% | 0.4 | Dyn11 / Yzn11 / Yyn0 | 0.272 | 2.700/2.570 | 0.272 | 3.000/2.860 | 0.34 | 3.000/2.860 | 5.5 |
| 250 | 20 | ±5% | 0.4 | Dyn11 / Yzn11 / Yyn0 | 0.32 | 3.170/3.020 | 0.32 | 3.520/3.350 | 0.4 | 3.520/3.350 | 5.5 |
| 315 | 20 | ±5% | 0.4 | Dyn11 / Yzn11 / Yyn0 | 0.384 | 3.79/3.61 | 0.384 | 4.21/4.01 | 0.48 | 4.21/4.01 | 5.5 |
| 400 | 20 | ±5% | 0.4 | Dyn11 / Yzn11 / Yyn0 | 0.456 | 4.47/4.26 | 0.456 | 4.97/4.73 | 0.57 | 4.97/4.73 | 5.5 |
| 500 | 20 | ±5% | 0.4 | Dyn11 / Yzn11 / Yyn0 | 0.544 | 5.35/5.09 | 0.544 | 5.94/5.66 | 0.68 | 5.94/5.66 | 5.5 |
| 630 | 20 | ±5% | 0.4 | Dyn11 / Yzn11 / Yyn0 | 0.648 | 6.140 | 0.648 | 6.82 | 0.81 | 6.82 | 6.0 |
| 800 | 20 | ±5% | 0.4 | Dyn11 / Yzn11 / Yyn0 | 0.784 | 7.430 | 0.784 | 8.25 | 0.98 | 8.25 | 6.0 |
| 1000 | 20 | ±5% | 0.4 | Dyn11 / Yzn11 / Yyn0 | 0.92 | 10.200 | 0.92 | 11.3 | 1.15 | 11.30 | 6.0 |
| 1250 | 20 | ±5% | 0.4 | Dyn11 / Yzn11 / Yyn0 | 1.1 | 11.900 | 1.1 | 13.2 | 1.38 | 13.20 | 6.0 |
| 1600 | 20 | ±5% | 0.4 | Dyn11 / Yzn11 / Yyn0 | 1.33 | 14.400 | 1.33 | 16 | 1.66 | 16.00 | 6.0 |
| 2000 | 20 | ±5% | 0.4 | Dyn11 / Yzn11 / Yyn0 | 1.56 | 17.200 | 1.56 | 19.1 | 1.95 | 19.10 | 6.0 |
| 3000 | 20 | ±5% | 0.4 | Dyn11 / Yzn11 / Yyn0 | 1.87 | 20.000 | 1.87 | 22.2 | 2.34 | 22.20 | 6.0 |
Q4: What are the advantages of oil-immersed equipment compared to dry-type equipment?
A4: This product, Oil Immersed Transformer, has superior heat dissipation performance, high-voltage load capacity, strong overload capacity, and low operating noise. It is suitable for high-power, long-term continuous operation conditions and is more suitable for industrial high-voltage heavy-duty scenarios, making up for some of the shortcomings of Dry Type Transformer in adaptability under high-power, high-voltage conditions.
