Kia Soul EV: High Voltage Battery System / Quick-Charger Relay Assembly (QRA) Description and Operation

Kia Soul EV (PS EV) 2015-2020 Service Manual / EV Battery System / High Voltage Battery System / Quick-Charger Relay Assembly (QRA) Description and Operation

Description
Quick Charge Relay Assembly (QRA) is installed in the high voltage joint box and it consists of main relays which control the high voltage. The QRA controls the high voltage between the high voltage battery pack and the high voltage joint box by BMS control signal. If the QRA operates, the PRA operates too.
[Main Function]
1.
During rapid charge, it acts as a switch that supplies high voltage to the battery pack.
2.
The role of preventing the overcharge

Operation

Power Relay Assembly (PRA) Repair procedures
Removal     • Be sure to read and follow the “General Safety Information and Caution” before doing any work related with the high voltage system. Failure t ...

Quick-Charger Relay Assembly (QRA) Repair procedures
Removal     QRA is integrated into the high voltage joint box and so each part cannot be replaced separately. Refer to removal procedure of high voltage joint box. Ins ...

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