Medium voltage switchgears – RUe
RUe switchgears are used in power engineering for simple branch stations, in stations supplying power to small industry facilities and in municipal transformer stations for power engineering industry. Cubicles of switchgear have very light skeleton construction. They have the same dimensions for 12 and 24 kV voltage. System of mechanical and electrical interlocks is used in switchgears.

Technical data RUe 10 RUe 20
Rated insulation voltage 35/75 kV 50/125 kV
Service rated voltage 12 kV 24 kV
Rated current 630 A
Rated peak current 40 kA
Rated 1-sec. current 16 kA

Medium voltage switchgears – Mn 20
Mm 20 type switchgears are used in traditional municipal transformer stations. They are designated for placing in separated electrical rooms as against-a-wall or free-standing. Cubicles of switchgear have light skeleton ANKO construction.
Mm 20 switchgears are designated for following cubicles:

  • line cubicle
  • transformer cubicle
  • metering cubicle
  • lighting cubicle
  • coupling cubicle
Technical data Mm 20
Service rated voltage 24 kV
Rated current 630 A
Rated peak current 40 kA
Rated 1-sec. current 16 kA
Dimensions of cubicle (width x height x depth) 850x2600x1000

Medium voltage switchgears – RES
RES switchgears are designated for distribution of power energy with service rated voltage 6,10,15 and 20 kV. RES switchgears are used in power engineering in so-called simplified systems of arterial and loop cable lines in end- or through – stations, which supply transformers with power up to 630 kVA and motors with power up to 1000 kW/6 kV.
Features of RES switchgears:

  • good level of rated parameters
  • light and rigid ANKO construction
  • very-good corrosion protection, long durability of construction
  • small dimensions and weight
  • easy operation and maintenance
  • reliability of operation and safety of maintenance, insulated busbars, enclosure with high protection degree (IP 4x), mechanical and electrical interlocks.

RES switchgears are equipped with modern apparatus. Basic connecting points are disconnectors OR4 and OR5 type for 12 and 24 kV voltage and vaccum contactors for voltage 7,2 kV HSV-7M type with reducing fuses WoHSV-71.

Technical data RES1 RES2
Rated voltage 12 kV 24 kV
Rated continous current 630 A
Rated peak current 40 kA
Rated 1-sec. current 16 kA
Protection degree IP 4x or IP 0X
Busbars system single
Dimensions of cubicle (width x height x depth) 650 x 2050 x 800 mm

Medium voltage switchgears – REW 20/8
REW 20/8 switchgears are used in main substations in power engineering and industry. Switchgear consists of 2 parts: fixed and movable. Two types of vaccum circuit breakers are used VD-4 from ABB and VL-1 from SGM with system of mechanical interlocks.
Konstrukcja REW spełnia wymagania w zakresie ochrony przeciwłukowej zgodnych z normą PN-EN 62271-200:2007 potwierdzonych atestem Instytutu Elektrotechniki nr 0664/NBR/09
Each cubicle consists of three compartments:

  • busbar compartment
  • HV equipment compartment
  • secondary circuits compartment (relay panel)
Technical data REW
Rated insulation voltage 50/125 kV
Service rated voltage 24 kV
Rated continous current 630 A or 1600 A
Rated peak current 50 kA
Rated 1-sec. current 20 kA