The AT series Medium Voltage heavy-duty substation for outdoor installation is a free standing, containerised unit, specifically designed for job site electrification.
It is completely self contained and is easily movable. It can be lifted with the transformer fitted.
The substation is provided with MV switchboard, transformer and LV switchboard, designed to suit customer requirements.
The AT substation, which is painted both outside and inside is totally enclosed and is completely water proof for outdoor installation.
The structure is fully sealed with panels manufactured from 2.5 mm thick steel plate reinforced as appropriate.
The transformer is installed into a totally separate section accessible through independent outside end doors.
A removable roof section above the transformer allows lifting by crane if required.
Access to the LV switchboard panels is through personnel doors in the side of the container. All substation doors are mounted with inox steel hinges.
All bolts, screws and mechanical devices have anti-corrosion treatment.
All the internal equipment is provided with mechanical safety interlocks in order to avoid dangerous situations arising.
- The substation is painted and finished to the following specification:
- sandblasting of all surfaces
- one coat rust-preventative epoxy type paint, 40 micron thick
- two coats, air-dried epoxy enamel, 60 micron thick, colour standard RAL 1006 yellow
- the roof and underside are covered by an additional coat of bituminous paint.
|SIZE AND POWER||AT SERIES (1600 - 3500 kVA)|
|SIZE 1||(L x D x H)||mm||4540 x 2400 x 2590|
|SIZE 2||(L x D x H)||mm||6058 x 2400 x 2590|
|SIZE 3||(L x D x H)||mm||7500 x 2400 x 2590|
|SIZE 4||(L x D x H)||mm||9125 x 2400 x 2590|
|SIZE 5||(L x D x H)||mm||12190 x 2400 x 2590|
|Rated system voltage||KV||12-24-36|
|Insulation level at 50 Hz for 60 seconds||KV||28-50-70|
|Impulse insulation level||KV||60-125-170|
|Rated secondary voltage||V||Value on request|
|HIghest capacity of transformer||KVA||4000|
|Auxiliary voltage||Vac/Vdc||230 Vac/24-48 Vdc|
|Enclosure (with cabinet closed)||IP549 - IPH6|
|Operating ambient temperature||-10 / +40ºC|
|Humidity (non condensing)||Rh 85%|
|Transformer||Mineral oil or cast resin dry-type|