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] |
Kia Niro 2017 (DE HEV) Service Manual: General safety information and caution
Safety Precaution
Precautions to take before servicing
high voltage system
Hybrid vehicles have high voltage batteries. Incorrect handling
of high voltage sy ...
Kia Niro 2017 (DE HEV) Service Manual: Safety Plug Specifications
Specification
Item
Specification
Rated Voltage (V)
450
Rated Current (A)
80
Fuse Rated Current (A)
125
Fuse Melting Time
Rated Current × 110% ...