Three-phase Dry type transformer SG-50KVA 380 variable 220V Two hundred Isolation control transformer 40/30K20KW15 Item NO.: 1943297

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It is widely used in industrial and mining enterprises, schools, hotels, transportation, posts and telecommunications, railways, import and export equipment, large-scale mechanical and electrical equipment and metal processing equipment in the fields of scientific research and culture, electronic computers, precision machine tools, precision instruments, experimental devices and AC power supply in the departments of national defense. Machinery supporting, production line, construction engineering equipment, elevator, medical equipment, embroidery and light textile equipment, air conditioning, radio and television, household appliances, lighting and other places that need to change pressure.
Ambient temperature: - 20 ~ + 50 ℃
Relative humidity: < 90%
Altitude: < 1000M
No serious vibration or turbulence at the installation site
There is no gas, steam, chemical deposition, dust, dirt and other explosive and corrosive media that seriously affect the insulation of the pressurizer
1, Product Description: three phase isolation transformer is the main component of various power supply and electrical equipment, which is made of high-quality materials and advanced technology. Through the transformer, the primary side and the secondary side are completely insulated, and the circuit is also isolated. In that case, the short circuit at the primary side will not affect the secondary side. The three-phase isolation transformer not only has the function of voltage transformation in the power grid, but also can isolate the third harmonic of the power grid to the equipment. The primary and secondary are shielded by copper foil, which effectively protects the interference of the harmonic of the power grid to the equipment. It is especially suitable for three-phase power supply occasions with the specification of 0.1kva-1600kva, AC 50-60Hz, input and output voltage not more than 1600V. The input and output voltage of the product (three-phase or multi-channel input and output, etc.), connection mode, tap position adjustment, winding capacity distribution, secondary winding configuration, external box (selected according to different use environment), can be carefully designed and manufactured according to the user's requirements.
2, Product advantages: new cold-rolled oriented silicon steel lamination; H-class temperature resistant 180 ° enamelled wire, beautiful and generous bare coil winding, fast heating of primary secondary air duct fan, galvanized foot stand, vacuum impregnation, drying oven! It effectively reduces the vibration and noise during operation, increases the electrical strength, and introduces new processes and technologies such as the design of high temperature resistant insulation materials, so that the products are more energy-saving and quieter. The energy-saving low-noise coil has a ventilation slot, the air flow is smooth, and the coil temperature is reduced rapidly and effectively.
performance parameter
Capacity: 0.5kva-1600kva
Noise: ≤ 35dB (within one meter)
Input voltage: 380V (various voltages can be customized as required)
Temperature rise: ≤ 60 ℃
Output voltage: 220V (various voltages can be customized as required)
Insulation resistance: ≥ 50m Ω
Voltage variation rate: ± 1%
Electrical resistance: 3000VAC / 1min
Output waveform distortion: no distortion (compared with input waveform)
Design life: 20 years
Working efficiency: ≥ 98%
Cooling mode: dry air cooling
Applicable frequency: 50 / 60Hz
Connection mode: Y /  Y / Y
Safety regulation standard: the product conforms to vde0550, iec439, jb5555, gb226 and other international national standards
Overload capacity: 2 times of rated current for 1 minute