Example, Totalizing Energy - Arbiter Systems Power Sentinel 1133A Operation Manual

110
10.7.1

Example, Totalizing Energy

1. For the first minute, A = +4 kWh. B = +2 kWh. C = -3 kWh. Total Energy = +3 kWh
(4 + 2 - 3)
Phase
A
B
C
Total
2. For the second minute, A = B = C = +10 kWh.
Phase
A
B
C
Total
3. For the third minute, A = B = C = -5 kWh.
Phase
A
B
C
Total
4. For the fourth minute,
5. For the fifth minute,
Lastly, Net energy values for each phase and total can be computed at any time, once the data
are located in the computer. For example, if the net energy per phase is required for phase A, then
the REC entry may be subtracted from the DEL entry to get the net energy for that phase for that
period. Suppose the following values are recorded for the end of the fifth period:
Phase
A
B
C
Total
* Calculated by user.
The net energy for phase A is 14 - 11 = 3 kWh
Delivered (DEL)
4
2
0
3
Delivered (DEL)
14
12
10
33
Delivered (DEL)
14
12
10
33
Delivered (DEL)
14
17
10
33
Working with Scheduled Data
Received (REC)
0
0
3
0
Received (REC)
0
0
3
0
Received (REC)
5
5
8
15
Received (REC)
11
5
8
16
Net*
+3
+12
+2
+17