Function and Application
NDKQ is mainly applied in crane control systems, and it is a dedicated accessory product for the crane control cabinet. It converts the single-phase or two-phase AC power supply voltage of 50Hz into the single-phase AC voltage required by the control system, providing power for the control electrical appliances in the control cabinet.
Detailed Parameters
| Parameter Category | Parameter Item | Parameter Value |
|---|
| Normal Operating Conditions and Installation Conditions | 3.1 | Elevation does not exceed 2000m. |
| 3.2 | The upper limit of ambient air temperature is 40°C, and the lower limit is -5°C. |
| 3.3 | At the highest temperature of 40°C, the relative humidity of the air does not exceed 50%. 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, corrosive gases, dust, explosive media, flammable substances, and flammable gases; it should have protection against rain, water, and snow, and should be free from steam. |
| 3.5 | The installation location has no vibration and impact vibration. |
| 3.6 | The power supply voltage waveform is a sine wave, the total harmonic content of the input power supply voltage is not more than 5%, the even harmonic content is not more than 1%, and the total harmonic content of the load current is not more than 5%. |
