Function and Usage
SG series three-phase dry-type transformers are applicable in AC circuits with a frequency of 50Hz, as control power supplies, lighting power supplies for machine tools, machinery equipment, low-voltage complete switchgear, and electrical drive control equipment, and can also be used as small power sources. Conforms to the standard: Q/ZT 525.
Detailed Parameters
| Parameter Category | Parameter Item | Parameter Value |
|---|
| Normal Working Conditions and Installation Conditions | 3.1 | Elevation does not exceed 2000m; |
| 3.2 | The upper limit of ambient air temperature is 40°C, the average temperature within 24 hours does not exceed 35°C; the lower limit of ambient air temperature is -5°C; |
| 3.3 | At a maximum temperature of 40°C, the relative humidity of the air does not exceed 50%, and at lower temperatures, higher relative humidity is allowed, for example, up to 90% at 20°C. Special measures should be taken for occasional condensation caused by temperature changes; |
| 3.4 | The installation environment should be well-ventilated, free from pollution, non-corrosive gases, dust, non-explosive media, flammable and combustible gases; equipped with protection against rain, water, snow, and no steam; |
| 3.5 | The installation location has no vibration and impact; |
| 3.6 | The power supply voltage waveform is a sine wave, and the three-phase power supply voltage is symmetrical; |
| 3.7 | The total harmonic content of the input power supply voltage does not exceed 5%, the even harmonic content does not exceed 1%, and the total harmonic current content in the load current does not exceed 5%. |
