Product Overview - Nuvation Energy NUVG5 Product Manual

Nuvation Energy G5 High-Voltage BMS - NUVG5 Product Manual

2. Product Overview

The Nuvation Energy G5 High-Voltage BMS provides cell-level and stack-level control for battery
stacks up to 1500 VDC. The G5 Stack Switchgear and G5 Cell Interface modules operate together as
a complete system called the G5 High-Voltage BMS.
Both Nuvation Energy G5 Stack Switchgear and G5 Cell Interface are designed to enable UL 1973
certification of the battery stack. The UL 1973 Recognized Nuvation Energy BMS (Note: certification
pending) in each stack ensures safe battery operation and significantly reduces the effort of certifying
the energy storage system to meet UL 1973 and UL 9540.
Figure 1. G5 High-Voltage BMS.
A single Nuvation Energy G5 Stack Switchgear unit manages each stack and connects it to the DC
bus of the energy storage system. The G5 Stack Switchgear is a pre-configured assembly that
incorporates the major functions of Nuvation Energy G5 High-Voltage BMS into a rack-mountable unit
which includes stack monitoring, electrical disconnects, pre-charging, current sensing, fuses, and fan
control.
G5 Cell Interface modules in each stack connect directly to battery cells to measure cell voltages and
temperatures and provide cell balancing.
Typically, a single battery stack uses one G5 Stack Switchgear and one or more G5 Cell Interface
modules. A breakdown of a single battery stack is shown in Figure 2
Document ID: NE-DS-011 3 Rev 1.0, 2023-05-19
G5 Faraday