Kia Niro: High Voltage Battery System / Power Relay Assembly (PRA) Description and operation

Kia Niro 2017 (DE HEV) Service Manual / Hybrid Control System / High Voltage Battery System / Power Relay Assembly (PRA) Description and operation

Description

The Power Relay Assembly (PRA) consists of the positive and negative main relays, pre-charge relay, pre-charge resistor and battery current sensor. It is located inside the battery pack assembly and controls the high voltage power circuit between the high voltage battery and inverter by the control signal of BMS ECU.

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]

Power Relay Assembly (PRA) Specifications
Specification Power Relay Assembly (PRA) Item Specification Rated Voltage (V) 240 Rated Current (A) ...

Power Relay Assembly (PRA) Repair procedures
Removal    • Be sure to read and follow the “General Safety Information and Caution” ...

Other information:

Kia Niro (DE HEV) Owners Manual: Power outlet
The power outlet is designed to provide power for mobile telephones or other devices designed to operate with vehicle electrical systems. The devices should draw less than 10 amps with the engine running. CAUTION Use the power outlet only when the engine is running and remove the accessor ...

Kia Niro 2017 (DE HEV) Service Manual: General information
Initial Response: Identify, Immobilize and Disable The following procedures should be used whenever you are dealing with a Niro at an emergency scene. All other operations should be consistent with your department’s standard operating procedures or guides. Hybrid is damaged by a crash may h ...

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