Switchboards for distribution transformer stations
RD, RVT, RBTR switchboards are LV switchboards designed for indoor spaces of transformer stations 10, 22, 35 / 0.4 kV up to 1×630 kVA or 2×630 kVA. Switchboards are designed and manufactured according to standards ČSN EN 61 439-1 ed.2, ČSN EN 61 439-2 ed.2 and ČSN EN 61 439-5 ed2.
Specifications:
- Rated voltage: 3×400 / 230 V / TN-C, 50Hz
- Rated current of main busbars: max. 1000 A
- Switchboard short-circuit resistance: 35 kA / 1 s
- Protection against dangerous contact voltage: automatic disconnection from the power supply
- Switchgear protection: IP 20/00
- Construction: welded steel frame from “U” profile 35x35x3 mm or screwed from perforated profiles
- Sheathing: sheet steel th. 1.5 mm (possibly .. 2mm)
- Surface treatment: powder paint (RAL 7032, 7035, possibly according to customer’s wishes)
Basic dimensions [mm]:
a) RD, RVT switchboard:
width: according to the number of outlets, 600 to 1000 mm
height: 2000 mm
depth: 400, 500 mm
b) RBTR frame switchboard:
width: 1000 to 2000 mm
height: 1200 mm
depth: 300 to 450 mm
c) RBTR grate:
width: 1000 to 1200 mm
height: 1350, 1800 mm
depth: 300 mm
