Kia Niro: 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 2017 (DE HEV) Service Manual: Muffler Components and components location
Components
1. Front muffler
2. Exhaust heat recovery system (EHRS)
3. Center muffler
4. Rear muffler
5. Gasket
6. Rubber hanger
...
Kia Niro (DE HEV) Owners Manual: Indicator light
When ignition switch is turned to ON, the indicator light illuminates, then goes
off if the ESC system is operating normally.
The ESC indicator light blinks whenever ESC is operating or illuminates when
ESC fails to operate.
ESC OFF indicator light comes on when the ESC is turned off with th ...
