13
described in the following procedure.
Verify the UPS is totally isolated from its external power source and also all power isolators of
the UPS are open. Check to see if they are electrically isolated, and post any necessary warning
signs to prevent their inadvertent operation .
Open the UPS terminal panel, remove the cover of terminals for wiring easily.
200/320kVA
Terminal Block
:
Terminal sequence from left to right:input phase A(L1),input phase B(L2),input phase C(L3),input
Neutral line, output Neutral line,output phase A(L1), output phase B(L2), output phase C(L3);battery
positive, battery Neutral, battery negative,Ground,bypass input phase A(L1),bypass input phase
B(L2),bypass input phase C(L3)
。
400/520kVA
Terminal Block
:
Terminal sequence from left to right:input phase A(L1),input phase B(L2),input phase C(L3),input
Neutral line, output phase A(L1), output phase B(L2), output phase C(L3);battery positive, battery
negative, output and battery Neutral,Ground,bypass input phase A(L1), bypass input phase
B(L2),bypass input phase C(L3)
。
Choose appropriate power cable.
（
Refer to the table above
）
and pay attention to the
diameter of the connection terminal of the cable that should be greater than or equal to that of
the connection poles;
Wiring
