8
Efficiency
The efficiency of the overall unit is dependent on several parameters such as input voltage, load level and on the combination
of output modules. The plots below show typical efficiencies of an RCB/MCB600 over the full line voltage and load range and
fitted with four of each type of output module, equally loaded.
An estimate of the efficiency for any particular system may be obtained from these graphs using the procedure outlined in the
example below.
Example:
Estimate the efficiency of an RCB600-AABC, at 160 V
RMS
input and 100 W load on each output?
1.
Define load efficiencies for each output module at specified load and 220 V
RMS
.
2.
Define change in efficiency from 220 V
RMS
to 160 V
RMS
for each output module.
3.
Sum the values from step one and two for each output module.
4.
Calculate the average efficiency for the total system.
Step
Details
Slot 1
OP-A
Slot 2
OP-A
Slot 3
OP-B
Slot 4
OP-C
1
Є
220
(Load chart)
0.85
0.85
0.88
0.88
2
∆Є
(220-160)
(Line chart)
-0.01
-0.01
-0.01
-0.01
3
Є
x
= Є
220
+
∆Є
(220-160)
0.84
0.84
0.87
0.87
4
Є
AVE
= (Є
1
+ Є
2
+ Є
3
+ Є
4
)/4
0.855
