ESS-20 (KSSRS)
AC Auxiliary Distribution Cabinets
| Nominal voltage: | ≤ 400V |
|---|---|
| Rated current: | ≤ 1600A |
| Rated frequency: | 50Hz |
| Impulse voltage (Uimp) | 12kV |
| Degree of protection: | |
| Short-circuit current Icw: | 15kA |
| Altitude above sea level: | |
| Ambient temperature: | |
| Relative humidity: | ≤ 100% (at +25°C) |
| Ventilation: | Passive (natural convection) / Active (mechanical forced ventilation) |
| Rated maximum current, main circuit | 52,5kA |
Basic Information
Description
Designed for supplying electrical power for auxiliary needs (device control) and electrical energy metering; Each module may vary in power rating or nominal current and is equipped with switching devices of different designs; Automatic Reserve Switching (ARS) with current and voltage measuring instruments, and measuring transformers; Complies with AB ‘ESO’ and ‘Litgrid’ technical requirements.
Enclosure:
Cabinet enclosures are made from hot-dip galvanized profiles and DX51D+Z275 sheet steel, with a thickness of 1–2 mm. They are painted with standard RAL7032 color (other colors can be applied according to the project). Cabinets are connected to each other using joining bolts. The cabinet enclosures are assembled structures with surfaces coated in durable powder coating. Doors are fitted with hinges, and locks are made of stainless steel. The cabinets are prepared for interconnection and feature lifting lugs. Current and voltage measuring instruments and control buttons can be mounted on the doors. Automatic circuit breakers and fuse-switch blocks can be installed inside the cabinet or positioned so that their front panels and control handles are on the outer side of the cabinet doors.
