Kipor KPEC Series User Manual page 18

B. ATS transfer switch:
The transfer switch (refer to fig.3-7 - 3-10), which avoids powering on two power supplies
simultaneously through a mechanical interlock mechanism, completes load transfer between two
power supplies by opening and closing the contactor. It may have 2 poles, 3 poles or 4 poles. The
electromagnetic mechanical actuating part may be controlled by the transfer switch controller or
manually switched by hand operation.
Hand operation on the transfer switch can be explained as following, taken the 4-pole 200A transfer
switch as an instance:
Make use of the spare operating handle and insert the manual operated axle, then the manual
switching on transfer switch is ready. It should be operated with zero load by qualified personnel as
following procedure:
There is electric shock hazard if operate at load bearing state, which may cause serious personal
injury or even death. Do not try to manually operate switches when there is load. Cut off both the
power supplies before manual operation.
1. Make sure there is no load on the transfer switch.
2. Open the door of ATS cabinet.
3. Remove fuse F2, F5 to cut off the power supply (fig.3-14).。
Switch to A side
a. Place the handle on converting axle.
b. Rotate the axle until the switch is locked.
c. Status window on the transfer switch indicates "ON"
(Fig.3-12). Fig.3-12
Switch to B side
a. Place the handle on converting axle.
b. Rotate the axle until the switch is locked.
c. Status window on the transfer switch indicates "ON"
(Fig.3-13). Fig.3-13
Attentions: Remember to convert the load of transfer switch to effective power supply (if both the
power supplies are effective, convert to grid).
Remove the hand operated handle before switching to auto mode, otherwise the operation of ATS
may make the handle throw away at high speed, which may cause serious personal injury. Place
the hand operated handle at safe position (e.g. at the bottom of the cabinet).
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