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

Description

Built into the Power Relay Assembly (PRA), the Pre-Charge Resistor protects the high voltage circuit by limiting the current while the inverter capacitor is being 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)

Pre-Charge Resistor Specifications
Specification Item Specification Resistance (Ω) 40 [20°C (68°F)] Rated power (W) 40 ...

Pre-Charge Resistor Schematic diagrams
Circuit Diagram [B03-C] (Relay Control) [B03-S] (Relay Control) ...

Other information:

Kia Niro 2017 (DE HEV) Service Manual: Delivery Pipe Repair procedures
Removal    In case of removing the high pressure fuel pump, high pressure fuel pipe, delivery pipe, and injector, there may be injury caused by leakage of the high pressure fuel. So don’t do any repair work rig ...

Kia Niro 2017 (DE HEV) Service Manual: Main Crash Pad Assembly Components and components location
Component Location 1. Crash pad main lower panel ...

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