Odpojovače typu QAK, QAKZ a uzemňovače QZ jsou provozně nenáročné spínací přístroje určené prospínání prvků nebo částí obvodu, případně k uzemnění jejich částí, bez zátěže. Jsou standardně dodávány v jednopólovém a třípólovém provedení s ručním nebo elektromotorickým pohonem. Odpojovače QAKZ jsou odpojovače QAK doplněné o uzemňovače. Uzemňovací kontakty mohou být umístěny na odpojovači podle požadavku na horních nebo dolních kontaktních praporcích.
Poznámky redaktora
The
stability contact forces provided separate compression springs stainless steel design.
Blocking mechanism installed between the switch disconnector and earthing switch shafts. The switch disconnector parts are made from electroplated silver-coated copper.S type provide for emergency operation.
1) QAK…FP, QAKZ…FP, QZ…FP devices are equipped with control units (gearboxes). The appendices are have been put together for the respective types
and designs the switching device, depending the particular purchase orders the clients.
Transmission (gear boxes) CB, CBP and type filled with solid greases, are design that prevents
the movement the switch reversed.
Emergency control provided removable handle via secondary gearbox input transmission pre-stage
is disabled. Everything minimised, also the main frame of
device..01/2017
12
The QAK, QAKZ, devices consists the following main component parts: supporting frame with shaft
and bearings, insulation and current-carrying parts, manually operated electrically powered drive
mechanism.FM, QAKZ.
The line optimised terms total width device.. These types
of switch disconnectors, when operated manually emergency situations, need use the insulated rod of
IMT 2. The core the main control unit the same like for line. This arrangement serves minimize the torque exerted the operating handle.
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 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.C.
2) QAK.
. The client can
order switch disconnector almost with any displacement angle the drive axis.FM, QZ…FM device line extend the line. 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. This design provides for better manual operation case emergency.
This device design has main advantage that whole drive can swivelled around 360° with minimum step
15°. The drive mechanism can equipped with various types electric motors, indication, control
and blocking elements, accordance with the client´s requirements.FE; QAKZ.. The and gearboxes are used
also. This angle can little bit
modified few steps) directly the installation site also. This unit placed the right or
on the left side the main devices frame.
Elements forming the supporting structure are made from rolled sections and galvanized steel sheets to
prevent corrosion. The transmission two-stage design, combined spun and worm
gearing..D0059.
3) QAK.
The QAKZ switch disconnectors are completed with earthing switch having separate drive unit.
The power control unit, terminals and auxiliary switch makes compact unit.FE, QZ…FE devices are typically equiped with CBP gearboxes. The transmission cannot put into movement via the switch
disconnector´s output shaft.
The basic dimensions the switching devices and the location drive mechanisms shown in
dimensional drawings which, along with the wiring diagrams, constitute part the accompanying
documents package its appendices. The
current-carrying path mounted supporting insulators made from epoxy resin mainly.
The electric motor powered drive mechanisms the QAK, QAKZ devices can sorted three
main design types.
