Sirius Capacitor Module
–
User Manual
Model Number - 3550-48-B-1.7C-TM-SD-A-19G
This manual is subject to change without notice and at the sole discretion of Kilowatt Labs, Inc.
Kilowatt Labs, Inc. |
29
13.
Test Procedures:
13.1 Round Trip Efficiency Test:
Round Trip efficiency test is performed to evaluate the performance of the Module. There are three
factors to be considered in the design of the test cycle for round trip efficiency.
•
How to charge and discharge the Sirius Module.
•
At what voltage to start and end the charge/discharge?
•
At which points to do the measurement.
Considering the efficiency and cost involved in the production line, we used constant current load test
method for Round trip efficiency characterization.
Test Equipment:
•
DC Charger test system or any other test system which can be used to charge and discharge
Module with test cycle programing. We used
WRL48V80A27cd
DC Charger Motor for charging and
WRL-FDY48L20
Battery Discharge Tester for discharging.
Test Temperature:
•
Room temperature 23
o
C ±2
o
C.
•
Temperature controlled chamber can be used if testing at any environment other than room
temperature.
Test Current:
•
Different current within the maximum limit specified by the test equipment manufacturer can be
applied to the test.
•
We took test currents in the range of 20-70A with current steps of 10.
Test Process:
Step 1: Rest (open circuit):
•
Record test time, test current, and voltage at the start of the test (t1, I1, V1).
Step 2: Charge Cycle:
•
Charge voltage to its maximum voltage.
•
Record test time, test current, voltage and total charge energy at the end of charge cycle (t2, I2,
V2, E1).
Step 3: Discharge Cycle:
