Transformer (220V to 110V, 380V/220V)
1. Introduction
Transformer is a device that converts alternating voltage based on electromagnetic induction, with primary coil, secondary coil and iron core (or magnetic core) as its core components.When AC voltage is applied to the primary winding, AC current flows through the winding to generate excitation, creating alternating magnetic flux in the iron core.This alternating flux passes through both the primary and secondary windings, inducing electromotive force in each winding respectively.Once the secondary winding connects to an external load, AC current outputs alongside electric energy.
The transformer is widely applicable to various imported & exported equipment, construction tunnels, laboratories, photovoltaic industry, precision instruments and other scenarios. Customizable input and output voltages are available per actual requirements.
2. Specification
| Model | Capacity (KVA) | Input (V) | Output (V) | Rated current (A) | Frequency (Hz) | Applicable load | Waveform distortion | Dimension | Electrical strength | Heat dissipation |
| QSG-3KVA | 3 | 380 | 220 (3P4W+G) | 7.9 | 50/60 | Arbitrary load | No additional waveform distortion | 390*300*330 | No breakdown or flashover occurred when a 2KV sinusoidal voltage was applied for 1 minute. | Self-cooling/Air-cooled |
| QSG-5KVA | 5 | 13.1 | 450*300*390 | |||||||
| QSG-10KVA | 10 | 26.24 | 505*350*420 | |||||||
| QSG-15KVA | 15 | 39.4 | 540*380*420 | |||||||
| QSG-20KVA | 20 | 52.4 | 570*420*460 | |||||||
| QSG-25KVA | 25 | 65.7 | 570*420*460 | |||||||
| QSG-30KVA | 30 | 78.9 | 640*420*460 | |||||||
| QSG-40KVA | 40 | 104.9 | 640*420*460 | |||||||
| QSG-50KVA | 50 | 131.5 | 580*460*450 | |||||||
| QSG-60KVA | 60 | 157 | 580*460*500 | |||||||
| QSG-80KVA | 80 | 210 | 580*460*500 | |||||||
| QSG-100KVA | 100 | 263 | 730*480*650 | |||||||
| QSG-150KVA | 150 | 394 | 800*500*700 | |||||||
| QSG-200KVA | 200 | 526 | 900*500*800 |




