3 Phase Step Down And Step Up Distribution Transformer
At the heart of power transmission and distribution lies oil-immersed transformers, renowned for their outstanding heat dissipation properties. Their utilization of premium insulating oil as a means of cooling not only mitigates temperature escalations during use but also markedly enhances equipment reliability and longevity, constituting a crucial safety measure within extensive power grids.
Product Details：3 Phase Step Down and Step Up Distribution Transformer
Oil-immersed transformers, prized for their exceptional energy conversion efficiency, find extensive use in the power sector. Featuring a sophisticated design, they adeptly convert incoming electrical power to the necessary voltage, and are prevalent in power stations, substations, and industrial power hubs, fostering energy's optimal use and dissemination.
PARAMETER：
Model | OSFPZ-300000/400 | OSFPSZ-315000/400 | SFZ-4380000/420 |
Capacitance ratio (MVA) | 300/300/100 | 315/315/105 | 438/438 |
Ratio-voltage (kV) | 400±8×1.25%/115/10.5 | 400±8×1.25%/220/33 | 420(-10，+6)×1.25%/20 |
voltage regulation mode | Variable magnetic flux | Constant magnetic flux | Constant magnetic flux |
Open circuit losses (kW) | 78.01 | 55.96 | 149.56 |
Load losses (kW) | 581.95 | 430.88 | 779.93 |
Impedance voltage (%) | 14.3 (High-Medium) | 12.5 (high-medium) / 45 (high-low) / 30 (medium-low) | 14.31 |
Oil oil temperature rise (K) | 37.1 | 34.2 | 30.7 |
Maximum Winding temperature rise (K) | 56 | 47.3 | 47.5 |
No-load noise (dB (A)) | 64.7 | 60 | 67 |
Measured local level (pC) | 80 | 100 | 90 |
1. Selection Notes
Performance indicators: focus on transformer efficiency, temperature rise, insulation level and other performance indicators. These indicators directly affect the operating efficiency and reliability of the transformer.
Cost-effective: under the premise of meeting the performance requirements, take into account the cost of equipment, transportation costs, installation costs and other factors, choose the most cost-effective transformer model.
2. Consider the installation environment and conditions
Optimizing Transformer Selection for Space: Determine the most suitable transformer model and installation strategy, tailored to the specific dimensions and configuration of the installation site.
Adapting Transformer to Environmental Demands: Factor in the temperature, humidity, and altitude of the installation environment to select a transformer that can thrive in those conditions.
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