| Model: | SPK-MVVFD-XXXX |
|---|---|
| Brand: | Sinopak |
| Origin: | Made In China |
| Category: | Electronics & Electricity / Power Supply & Distribution / Other Power Supply & Distribution |
| Label: | variable speed drive , MV VSD , ac drives |
| Price: |
US $88000
/ Set
|
| Min. Order: | 1 Set |
| Last Online:25 Mar, 2024 |
3.3kV -12kV variable speed drives for steel mills
Product Structure
Sinopak MVVFD includes integrated structure and split-type structure based on capacity. The integrated structure is adopted in low capacity MV VFD and the split-type structure is adopted in high capacity MV VFD. In terms of an integrated machine, which is compact in size, phase-transformer, power units, control systems, and power frequency bypass are fully integrated into one cabinet; In terms of a split-type machine, phase-transformer, power units, control systems and power frequency bypass are assembled in separate cabinets in which are combined on the spot.
Technical Parameters
|
Medium voltage input |
Voltage range |
3KV, 3.3KV, 4.16KV, 6KV, 6.6KV, 10KV, 11KV (-20%~+15%) |
|
Frequency range |
50/60 Hz±10% |
|
|
Medium voltage output |
Output voltage |
0~Rated voltage |
|
Output frequency and accuracy |
0~50/60 Hz, 0.01 Hz |
|
|
Output waveform |
Multilevel PWM sin wave, total harmonic distortion (THD) < 4% |
|
|
Performance |
Efficiency |
Inversion efficiency at an rated load > 98.5%, overall efficiency (including the transformer) > 97% |
|
Power factor |
Power factor (within the range of speed regulation) > 0.95, power factor (at a rated load) > 0.97 |
|
|
Overload capacity |
110%: long-term stable operation, 120%: 1 minute, 150%: 2 seconds, and 160%: prompt protection |
|
|
Allowable outage duration |
200 ms (and longer under light load) |
|
|
Mean time between failures |
> 100,000 hours |
|
|
Control |
Control mode |
flux optimization and control with space vector PWM |
|
Acceleration/deceleration time |
1 to 3,600 seconds |
|
|
Switching quantity input/output |
11-way/10-way |
|
|
Analog input |
4-way (optional: 0 to 5 V, 4 to 20 mA) |
|
|
Analog output |
3-way (optional: 0 to 10 V, 4 to 20 mA ) |
|
|
Communications |
RS485 interface, Modbus-based (optional Profibus-DP and Ethernet interfaces) |
|
|
Control power supply |
Single-phase 220 V AC, 5kVA |
|
|
Excitation control ( dedicated for the synchronous motor) |
Control mode |
Automatic excitation control, manual excitation control, multi-stage speed excitation control, and external excitation control for the MVVFD |
|
Environment |
Operating environment |
Operating in indoor environment without explosive or corrosive gases, conductive dust, or oil fog |
|
Operating ambient temperature |
0℃~+45℃ |
|
|
Storage and transportation temperature |
-40℃ ~+70℃ |
|
|
Ambient humidity |
< 90% (No condensation) |
|
|
Operating altitude |
Derating required for an altitude greater than 1000 meters |
|
|
Others |
Protection function |
Overcurrent, overload, short circuit, three phase current unbalance, immediate electric outage, input/output phase loss, overvoltage, undervoltage, body overheat, transformer overheat, shutdown due to external fault, and power unit auto bypass |
|
Cooling mode |
Forced-air cooling |
|
|
User interface |
An 10-inch Human Machine Interface |
|
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Protection grade: IP31 |
IP31 |
