Switchgears for distribution transformer stations
RD, RVT, RBTR switchgears are LV switchgears designed for internal spaces of transformer stations 10, 22, 35 / 0.4 kV of the power up to 1×630 kVA or 2×630 kVA. These switchgears are designed and manufactured in compliance with ČSN EN 61 439-1 ed.2, ČSN EN 61 439-2 ed.2 and ČSN EN 61 439-5 ed.2 standards.
Technical specifications:
- Nominal voltage: 3×400 / 230 V / TN-C, 50Hz
- Nominal current of main busbars: max. 1000 A
- Switchgear short-circuit resistance: 35 kA / 1 s
- Protection against dangerous contact voltage: by automatic disconnection from the power supply
- Switchboard cover: IP 20/00
- Structure: welder steel frame from U-profile 35x35x3 mm or bolted from perforated profiles
- Sheathing: 1.5 mm (or 2 mm) steel sheet
- Surface finish: powder coating (RAL 7032, 7035, or as requested by the customer)
Basic dimensions [mm]:
a) RD, RVT switchgear:
width: according to the number of outlets, 600 to 1000 mm
height: 2000 mm
depth: 400, 500 mm
b) RBTR frame switchgear:
width: 1000 to 2000 mm
height: 1200 mm
depth: 300 to 450 mm
c) RBTR grate switchgear:
width: 1000 – 1200 mm
height: 1350, 1800 mm
depth: 300 mm
