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S15-M Oil Immersed Distribution Transformer
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- 产品描述
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Basic Principle
S15 transformers operate based on the principle of electromagnetic induction. When an alternating current power source is connected to the primary winding, an alternating magnetic flux is generated in the iron core. This magnetic flux induces an electromotive force in the secondary winding, thus realizing voltage transformation and electrical energy transmission.
Structural Features
Iron Core:
It usually adopts amorphous alloy materials, which have the characteristics of high magnetic permeability and low loss. Its unique structure of disordered atomic arrangement significantly reduces the eddy current loss and hysteresis loss of the iron core and improves the energy efficiency of the transformer.
Windings:
Generally, they are made of high-quality copper or aluminum wires. The winding structure is reasonably designed, and the insulation performance is good, capable of withstanding high voltage and current stresses to ensure the safe and reliable operation of the transformer.
Tank and Cooling System:
The tank has a sealed structure, effectively preventing the transformer oil from contacting the outside air, reducing the oxidation of the oil and the intrusion of moisture. There are various cooling methods, including oil-immersed self-cooling, oil-immersed air-cooling, and forced oil circulation cooling.
Performance Parameters
Rated Capacity:
It covers a wide range, ranging from dozens of kVA to thousands of kVA. Common ones include 30 kVA, 50 kVA, 63 kVA, 80 kVA, 100 kVA, etc., which can meet the power consumption needs of different users.
Rated Voltage:
The high-voltage side voltage is usually 6 kV, 10 kV, 35 kV, etc., and the low-voltage side voltage is generally 0.4 kV, 0.69 kV, etc. No-load Loss: Due to the use of the amorphous alloy iron core, its no-load loss is significantly reduced compared with that of traditional transformers with silicon steel sheet iron cores, and the energy-saving effect is remarkable, usually being able to be reduced by about 70% 80%
Load Loss:
Through the optimization of the winding design and the selection of high-quality wires, the load loss has also been effectively controlled, improving the operating efficiency of the transformer.
Short-circuit Impedance:
The short-circuit impedance is reasonably designed, generally between 4% and 6%, which can effectively limit the short-circuit current and improve the short-circuit withstand capacity of thetransformer.
Technical Parameters
Rated Capacity High Voltage Tap Range Low Voltage Vector Group No-load Loss Load Loss No-load Current Impedance Voltage (kVA) （kV） （kV） （W） （W） （%） （%） 30 6
6.3
10
10.5
11±2*2.5 04 Dyn11 0.033 0.63 1.7 4 50 0.043 0.91 1.3 63 0.05 1.09 1.2 80 0.06 1.31 1.1 100 0.075 1.58 1 125 0.085 1.89 0.9 160 0.1 2.31 0.7 200 0.12 2.73 0.7 250 0.14 3.20 0.7 315 0.17 3.83 0.5 400 0.2 4.52 0.5 500 0.24 5.41 0.5 630 0.32 6.2 0.3 4.5 800 0.38 7.5 0.3 1000 0.45 10.3 0.3 1250 0.53 12 0.2 1600 0.63 14.5 0.2 2000 0.75 18.30 0.2 5 2500 0.9 21.2 0.2
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