APC 20 - 200 KVA Benutzerhandbuch

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E-51028230XT/BG 
 - 17
Parallel UPS unit for
increased output
See figure 21.
Proceed in the following order:
  check that all load devices are off or
that the load is disconnected;
  close the upstream switch supplying
normal AC source power (on the LV
switchboard);
  close the normal AC input switches
Q1 on the UPS units. The system
powers up:
◗◗
  the rectifier/chargers automatically
start,
◗◗
  the green "rectifier/charger" lights  1
in the control panels go on,
◗◗
 
 lights   turn red;
  close the battery circuit breakers
QF1;
◗◗
 
 lights   go off;
 close Mains 2 input switch Q4S in the
external bypass unit:
◗◗
  green lights   and   on the control
panels go on;
  close output switches Q5N for the
inverters and in the external bypass
unit;
  open maintenance bypass switch
Q3BP in the external bypass unit;
  press the "inverter on" button  8  on
each control panel:
◗◗
  the green "inverter" lights   flash;
  when a sufficient number of inverters
are ready, the inverter-output
contactors close:
◗◗
  the green "inverter" lights   shine
permanently green;
◗◗
  the "static-bypass" lights  3  go off.
Start-up
System start-up
Single-UPS unit or
redundant parallel UPS or
UPS in "ECO" mode
See figure 20.
Proceed in the following order:
◗ 
 close the upstream switches
supplying normal and bypass AC
source power (on the LV switchboard);
  close normal AC input switch Q1.
The system powers up:
◗◗
 
 the rectifier/charger automatically
starts,
◗◗
 
 green light   on the control panel
goes on,
◗◗
 
 light   turns red;
  close bypass AC input switch Q4S:
◗◗
 
 green lights   and  5  on the control
panel go on;
  close inverter output switch Q5N;
  close battery circuit breaker QF1;
◗◗
 
 light   goes off;
  open maintenance bypass switch
Q3BP;
◗ 
 press the "inverter on" button  8  on
the control panel:
◗◗
 
 the green "inverter" light   flashes,
◗◗
 
 the inverter starts, then, if the bypass
AC source transfer conditions are
satisfied, the load is transferred to the
inverter if the on-line mode is selected,
or the load remains on the static
bypass if the "ECO" mode is selected,
◗◗
 
 the green "static-bypass" light  3
goes off,
◗◗
 
 the green "inverter" light   shines
for on-line mode or flashes for "ECO"
mode.
Single-converter unit or
redundant parallel
converter unit
See figure 21.
Proceed in the following order:
  close the upstream switch supplying
normal AC source power (on the LV
switchboard);
  close normal AC input switch Q1.
The system powers up:
◗◗
  the rectifier/charger automatically
starts,
◗◗
  green light   on the control panel
goes on;
  close battery circuit breaker QF1;
  close inverter output switch Q5N;
  press the "inverter on" button   on
the control panel:
◗◗
  the green "inverter" light   flashes,
◗  
◗  
 the inverter starts up, then connects.
The load is then supplied by the
inverter,
◗◗
  the green light   shines
permanently, and light  5  turns green.
Note:
Each time a device is switched on, a
lamp test is run: all the lights turn
orange for roughly 1 second. The
message "autotest OK" is displayed
until the first primary message is sent.
Fig. 20
Fig. 21
Q5N
Q1
Q4S
QF1
0
I
3
1
2
1
0
1
0
1
0
1
0
1
0
1
0
1
0
Q3BP
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
5
4
6
20 - 200 kVA
3
1
2
1
0
1
0
1
0
1
0
4
20 - 200 kVA
Q5N
Q1
Q5N
Q1
QF1
0
I