DW-2: Metal Clad – AIS
Designed for international applications and for high operational safety.
The DW-2 is an air insulated medium voltage switchgear family for indoor use. It was developed for international applications and ensures a high operational safety.
This range is designed in compliance with the availability class LSC2B and the partition class PM according with the IEC 62271-200 standard.
Design
- Depending on the chosen model, all compartments are accessible from the front side. If desired, the cable compartment can be made accessible from the rear side.
- The cable and circuit breaker compartment are equipped with internal pressure withstanding viewing windows.
- Access to the top of the cubicles with cables or busbars is also available.
- Created for straight forward manufacturing: no welding, truing, grinding and cleansing procedures required.
- Segregated busbars from panel to panel.
- Gas evacuation vents or gas evacuation duct to the outside are optional available.
Technical Specifications
| Rated voltage (Ur) | 12 kV |
| Rated power frequency withstand voltage (Ud) | 28kV (42kV op aanvraag) |
| Rated lightning impulse withstand voltage (peak) (Up) | 75kV (95kV op aanvraag) |
| Rated short-circuit breaking current (Isc) | tot 31.5kA |
| Rated peak withstand current (Ip) | tot 82kA |
| Rated short-time withstand current (Ik) | tot 31.5kA |
| Rated duration of the short-circuit current (tk) | 4s |
| Internal arc withstand current, 1s | 31.5kA |
| Rated frequency | 50/60Hz |
| Rated busbar current | 2500A |
| Rated outoing feeder current | 630A, 1250A, 1600A, 2000A |
| Standards | IEC 62271-200 |
| Degree of protection (RC 630A, 1250A) | IP4X |
| Degree of protection (RC 1600A, 2000A) | IP3X |
| Temperature | -25…+40 °C |
| Maximum relative humidity | 95% |
| Maximale height | 1000m a.s.l.* |
* For installations at altitudes higher than 1000 m, the withstand level of the external insulation at the service location has to be determined by multiplying the rated insulation levels by a factor Ka in accordance with the IEC 62271-1.
Any questions?
Feel free to contact us for more information!
