Intelligent display SG three-phase variable dry isolation transformer
Power
The magnetic flux of the transformer core is related to the applied voltage. The excitation current in the current does not increase with the increase of the load. Although the iron core will not saturate when the load is increased, the resistance loss of the coil will increase. If the rated capacity is exceeded, the heat generated by the coil cannot be dissipated in time, and the coil will be damaged. If the coil you use is made of superconducting material, the current will not increase. It causes heat, but there is impedance caused by magnetic leakage inside the transformer, but the current increases, the output voltage will drop, the greater the current, the lower the output voltage, so the output power of the transformer cannot be unlimited. If you say again that the transformer has no impedance, then when the current flows through the transformer, it will produce a particularly large electromotive force, which can easily damage the transformer coil. Although you have a transformer with unlimited power, it cannot be used. It can only be said that with the development of superconducting materials and core materials, the output power of transformers of the same volume or weight will increase, but not infinite!
The main technical parameters
| Input voltage |
rated voltage ±10% |
| Output voltage |
rated voltage ±5% (no load) |
| Effectiveness rate |
≥ 95% |
| Waveform distortion |
No additional waveform distortion |
| Function |
With input voltage, output voltage, current and other indications |
| Protection |
With over-current protection, continuous unattended work |
| Insulation resistance |
≥50M ohm |
| Electric strength |
Power frequency sinusoidal voltage 2000V for 1 minute without breakdown or flashover |
| Overload capacity |
Twice the rated current for 1 minute |
| Ambient temperature |
-15℃––+40℃ |
| Altitude |
＜1000M |
| Relative humidity |
＜95% |
Overview
Products comply with VDE0550, IEC439, JB5555, GB5226*, national standards. The SG series three-phase dry-type transformer not only has the function of voltage transformation in the power grid, but also isolates the third harmonic of the power grid to the equipment, protecting the heat generated by the machine and reducing the life of the insulating material. Particularly suitable for imported equipment (380V in→220V out, 380V in→any voltage output, 220V in→any voltage output) specifications between 1KVA～1000KVA, SG, DG series dry-type isolation transformers are widely used in AC 50～60HZ, input , Various three-phase power supply occasions where the output voltage does not exceed 500V. It is widely used in various power supply occasions with AC 50, 60HZ and input and output voltages not exceeding 500V. The various inputs, outputs, voltage levels, connection groups, adjustment of tap positions, winding capacity distribution, secondary windings, whether to require a casing, etc., are all carefully designed and manufactured according to user requirements.
Note
There is no gas vapor, chemical deposits, dust, dirt and other explosive and corrosive media that seriously affect the insulation of the transformer at the installation site.
