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Troubleshooting of battery DC screen

by:Power Kingdom     2021-06-29
Tags: Battery DC screen troubleshooting When the central audio signal 'alarm' in the battery DC screen rings; the DC bus failure' light sign is on; the DC bus voltage indication deviates from the allowable value. How should we troubleshoot. In fact, this situation is very It may be that the DC bus voltage is too high or too low. Troubleshooting: 1) Check whether the voltage relay of the voltage monitoring device operates correctly. 2) Observe the output voltage of the charger device and the display of the DC bus insulation monitoring instrument, or use a multimeter to measure the bus voltage. Determine whether the DC bus voltage is abnormal. 3) Adjust the charger output to make the DC bus voltage and floating charge current return to normal. 4) If the DC bus voltage is abnormal due to a malfunction of the charger device, the charger should be stopped and switched to Backup charger operation
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