Name
Description
Connected to Device
Battery (-)
Negative terminal of battery stack
Battery stack
Battery (+)
Positive terminal of battery stack
Battery stack
DC Bus (-)
Negative terminal of DC bus
External equipment
DC Bus (+)
Positive terminal of DC bus
External equipment
In order to make the connection:
1. Feed the wire through the terminal cover
2. Strip the insulation
3. Crimp the lug
4. Screw the lug onto the terminal
5. Slide the terminal cover onto the terminal
The recommended tightening torque is 5.7 to 6.8 N-m [50 to 60 in-lbs].
The battery stack terminals are always energized and should be handled as such.
Although the DC bus terminals are disconnected from the battery by the Stack
Switchgear unit’s contactors, the DC bus can still be energized by other components
on the DC bus (e.g. power conversion system or other stacks). The DC bus terminals
should always be treated as though they were energized.
A simple voltage check (i.e. across the positive and negative terminals) is not always
sufficient,
especially
with grounded battery stacks. It is recommended to also check
for voltage between each conductor and ground.
Nuvation Energy High-Voltage BMS - Product Manual
Document ID: NE-PM-003
24
Rev 1.2, 2021-03-03
Curie Update 1
