Scenario:
Power system is installed with battery support and has no load connection. It's a capacity testing whether it can deliver at particualr value of low voltage or high voltage DC output based on customer's load requirement.
Objective:
Must measure the DC output and it should within the range of 43.2 to 57.6 Vdc. More clearly, need to get low voltage reading at 42Vdc and high voltage at 58Vdc.
Concept:
Bus bar voltage: 53.5V, if the battery connects to the power system,the busbar voltage is the batttery voltage. In other words, if we connect the battery, the voltage what we test is the battery voltage.
Procedure:
Note : Turn Off the battery if you need to measure the DC voltage at low level and high level depending on requirement.
Step 1 :
Main Menu/ Parameters settings (default password :000001#) / Power System /AC&DC Volt. Para. / Bus Ultra UV Thres. : 44 V→ 40V, Bus Bar UV Thres. ：45V→ 40V.
Step 2:
Main Menu/ Running Control (default password :000001#)/Power System/System Control Mode/Automatic→Manual, Rectifier / Rectifier Group / Manual Control Volt./53.5V→42V
Step 3:
Measure the DC output, it should decresed to 42Vdc at screen. Repeat the step 1 & 2 for high voltage, set in overvoltage parameter. Then, measure the DC output, it should get nearly 58Vdc.
Step 4 :
After doing measurement, restore back the default setting or set the system control mode to Automatic.
