This switching device is used for the change-over switching of no-load circuits in the MV switchgears cabinets or in MV switching stations. The change-over switch drives can be either of electric motor or hand operated type, with manual actuation of the electrical drives. This device can be done in various types according request and switching schemes. The PQAK change-over switch can be even equiped with integrated earthing switch.
Rated voltage: 1 – 52 kV
Rated current: 100 – 4000 A
Rated shorttime current 1s (3s): 80 kA
Rated dynamic current: 200 kA
Rated frequency: 50 Hz (16 Hz, 60 Hz)
Mechanical endurance: 2000, 5000, 10000 C-O
Minimum lifetime (years): 40
Drive type: Hand drive, Hand drive via gearbox, motor drive
Motor type: 12V DC, 24V DC, 48V DC, 60V DC, 110V DC, 220V DC, 230V AC, 400V AC
Signaling positions:Limit switches per position, placed direct on main device shaft, Auxiliary cam-switch (high switch capacity)
Insulators type: Epoxy resin, porcelain (upon request)
Number of positions: 2,3,4
Type of switching schemes: C-O-C, C-C-C, C-G-C, C-C-C+G etc.