Kia Niro: High Voltage Battery Control System / Pre-Charge Relay Description and operation

Description

Built into the Power Relay Assembly (PRA), the Pre-Charge Relay starts to charge the capacitor of the inverter soon after ignition "ON", then it goes out when the capacitor has been fully charged.

1. High Voltage Power Terminal (-)
2. High Voltage Power Terminal (+)
3. Battery Current Sensor
4. Inverter Power Terminal (-)
5. Inverter Power Terminal (+)
6. Pre-Charge Resistor
7. Main Relay (+)
8. Pre-Charge Relay
9. Main Relay (-)
10. Power Relay Assembly Connector (Battery current sensor signal input)
11. Power Relay Assembly Connector (Main relay control)

[PRA Operation Sequence]

Pre-Charge Relay Specifications
Specification Item Specification Contact Rated Voltage (V) 450 Rated Current (A) 10 ...

Pre-Charge Relay Schematic diagrams
Circuit Diagram ...

Other information:

Peugeot 2008 2019-2022 Owner's Manual: Towing device
Load distribution Distribute the load in the trailer so that the heaviest items are as close as possible to the axle, and the nose weight approaches the maximum permitted without exceeding it. Air density decreases with altitude, thus reducing engine performance. The maximum towable load mus ...

Kia Niro 2017 (DE HEV) Service Manual: Case 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 to follow the safety instr ...

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