Uzemňovače (zkratovače) se zkratovou zapínací schopností typu QZR jsou provozně nenáročné spínací přístroje určené do vnitřních rozvoden vn. Jedná se o uzemňovač s mžikovým pohybem hlavních kontaktů do zapnuté polohy, čímž je dosaženo zaručené zapínací schopnosti. Mohou být použity jako bezpečnostní zařízení ve vstupních polích rozvaděčů vn. Jsou dodávány v jednopólovém, dvojpólovém a třípólovém provedení s ručním nebo elektromotorovým pohonem.
The angular displacement of
the drive mechanism can set depending the vertical mounting the switch disconnector the inside
of the switching cell, with respect the control options the withdrawable insulated rod.
3) QZR…FM device line extend the line.S type provide for emergency operation.D0075. This unit placed the right or
on the left side the main devices frame.
2) QZR…FE devices are typically equiped with CBP gearboxes.
The standard power control units are equiped with electric motors from this range:
3 PEN 50/60 400 110 DC; 125V DC; 230 AC; 220 DC
Upon request also possible supply special electric motors from this range:
24 DC, DC, nebo 120 AC. The core the main control unit the same like for line.
The power control unit, terminals and auxiliary switch makes compact unit.C. Everything minimised, also the main frame of
device.
The emergency manual operation using gear box output shaft, usually driven the electric motor, serves
for switching the disconnector OFF and via the transmission gear including also transmission pre-
stage. This angle can little bit
modified few steps) directly the installation site also. The client can
order switch disconnector almost with any displacement angle the drive axis.01/2017
7
The electric motor powered drive mechanisms the QAK, QAKZ devices can sorted three
main design types. This arrangement serves minimize the torque exerted the operating handle.
Emergency control provided removable handle via secondary gearbox input transmission pre-stage
is disabled.
The line optimised terms total width device.
This device design has main advantage that whole drive can swivelled around 360° with minimum step
15°. These types
of switch disconnectors, when operated manually emergency situations, need use the insulated rod of
IMT 2. The and gearboxes are used
also. This design provides for better manual operation case emergency.
1) QZR…FP devices are equipped with control units (gearboxes).
