TECHNICAL DATA OVERVIEW
INTERNAL AIR-COOLED
| Output voltage | 4.16 kV
(24 cells) |
6.6 kV – 6.9 kV
(36 cells) |
10.0 kV – 11.0 kV
(54 cells) |
13.2 kV – 13.8 kV
(66 cells) |
|---|---|---|---|---|
| Type rating | 6 – 10 MVA
7 – 15 kHP |
10 – 18 MVA
12 – 24 kHP |
15 – 26 MVA
18 – 35 kHP |
20 – up to 35 MVA
25 – up to 45 kHP (more with dual circuit) |
| Cell current rating | 1000 A, 1100 A, 1300A, 1400 A, 1500 A | |||
| Drive quadrants | Drive two-quadrant operation (driving without regenerative feedback, 2 directions of rotation) | |||
| Topology | Cell based topology (option: redundant cells with cell bypass) | |||
| Transformer | Separate transformer (default is oil-filled) | |||
| Rectifier Pulses | 24 pulse standard, higher number of pulses for 10kV – 13.8 kV on request | |||
| Cooling methods | – Direct air-cooled with ducting option
– Integral air-to-air heat exchanger – Integral air-to-water heat exchanger |
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| Temperature | – Air-to-Air Heat Exchanger: 40 ºC max outside temperature for A/A-HEX, higher with derating
– Indirect Water Cooling with air-to-water heat exchanger: 35 ºC max water intake temperature, higher on request |
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| Sound Pressure | < 85 dB(A) | |||
| Type of protection | IP42 air-cooled
IP54 air-to-air heat exchanger, integral air-to-water heat exchanger |
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| Control modes | Vector control for induction motors and synchronous motors (incl. high speed motors) | |||
| Access | – Cable entry: top & bottom
– For maintenance: front access only sufficient |
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