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:
Kia Niro (DE HEV) Owners Manual: Technical Data (18 inch tire)
System voltage: DC 12 V
Working voltage: DC 10 - 15 V
Amperage rating: MAX. 15A ± 1A (at DC 12V operation)
Suitable for use at temperatures: -30 ~ +70°C (-22 ~ +158°F)
Max. working pressure: 6 bar (87 psi)
Size
Compressor: 168 x 150 x 68 mm (6.6 x 5.9 x 2.7 in.)
Sealant bottle: 104 x 85 ø ...
Kia Niro 2017 (DE HEV) Service Manual: Cooling Fan 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 ...
