The LV-VFD is a heavy duty VFD for continuous operation and designed as LV-SVFD for short time starting operation.
Drive starter applications:
- Starting of standard asynchronous and synchronous motors.
- Retrofit to any existing induction- and wound rotor motor.
The VFD guarantee smooth continuous speed control and step-less acceleration without any mechanical shock to the motor and the load (if used as SVFD drive starter until full speed and the by-pass is closed).
Rated voltage | 1000 | V | |
Input voltage up to | 690 | V | |
Starting voltage range | 0-690 | V | |
Rated starting time | 5-90 | sec | |
Rated starting current up to | 3000 | A | |
Rated by-pass current up to | 5000 | A | |
Rated starting power up to | 3500 | kVA | full load |
Motor starting up to | 3000 | kVA | full load |
Operating frequency | 0-65 | Hz | |
Output frequency resolution | 0,01 | Hz | |
Control | Totally digital with signal processor, | ||
Control mode | V/F or vector control, open & closed loop with encorder | ||
Cooling method | NA / FA | air cooled | |
Heat dissipation sample | < 0,15 | Wh | by-pass closed (without stand still heater) |
Addtional heat dissipation sample | 0,1-1,04 | kWh | |
Enclosure protection class | IP 42 | acc to IEC 61800 | |
Steel sheet panel | partly galvanized | ||
Painting of doors | RAL 7035 | powder coated | |
Altitude above sea level | ≤ 1000 | m | |
Ambient requirements | Indoor, normal air, refer to 4.2.6.2.2 of IEC 61800-5-1 pollution degree 2 | ||
Rated ambient temperature | 40 | ||
Ambient temperature | 0 ~ + 55 |
| de-rated operating |
Relative humility | ≤ 95 | % | without condensation |
Backside access | Not required | ||
Designed under consideration of | IEC 61800-2 | ||