APC 20 - 200 KVA User Manual

Page of 40
24 - 
E-51028230XT/BG
  bypass AC source  2
◗  
◗  
 phase-to-neutral voltage,
◗  
◗  
 phase-to-phase voltages,
◗  
◗  
 frequency,
◗  
◗  
 currents of the three phases;
◗ 
 battery  3
◗  
◗  
 voltage;
◗  
◗  
 charge or discharge current;
◗  
◗  
 remaining battery time (for the UPS
unit concerned);
◗  
◗  
 battery temperature;
◗ 
 inverter output  4
◗  
◗  
 frequency;
Control-panel display (cont.)
Measurement system
The display  23 may be used to read a
number of input and output
measurements made at different points
in the system. See, in the Appendix,
figure 23.
  normal AC source  1
◗◗
  phase-to-phase voltages,
◗  
◗  
 currents of the three phases,
◗◗
  frequency;
  total load  6
◗  
◗  
 phase-to-neutral voltage,
◗  
◗  
 phase-to-phase voltages,
◗  
◗  
 currents of the three phases,
◗◗
  frequency,
◗◗
  active and apparent power.
Note:
Frequency converters without batteries
are not concerned by the battery
measurements. The displayed battery
voltage corresponds to the DC voltage
at the rectifier/charger output.
Bypass AC source   measurements
are not displayed on frequency
converters
Voltage measurements
These measurements may be
accessed by pressing the "V" key  14 .
The following data is displayed.
Note:
M1: normal AC source
M2: bypass AC source
RMS
M1
M2
LOAD
RMS
M2
LOAD
U12
----
----
----
V1
----
----
U23
----
----
----
V2
----
----
U31
----
----
----
V3
----
----
Current measurements
These measurements may be
accessed by pressing the "A" key  15 .
The following data is displayed.
Note:
CF: crest factor
RMS
M1
M2
LOAD
FC-LOAD I-LOAD/I-NOM
I1
----
----
----
-.--
----  %
I2
----
----
----
-.--
----  %
I3
----
----
----
-.--
----  %
LOAD
KW
KVA
PL/PN = --- %
FREQ.HZ
P1
----
----
M1
--.-
P2
----
----
M2
--.-
P3
----
----
FP.LOAD = -.-
INV --.-
Fig. 23
1
2
Q1
Q5N
QF1
U - V - I - F
U  - I - F
U - I
F
U - V - I - F - P
A
B
C
D
Q4S
6
4
3
1
2
Power and frequency
measurements
These measurements may be
accessed by pressing the "W.HZ" key
16 . The following data is displayed.
Note:
PF: power factor