Stack Switchgear - Nuvation Energy NUVSSG-1250-100 Product Manual

3.1. Stack Switchgear

There are 3 variants of the Stack Switchgear:
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The NUVSSG-1250-100 (1250 V, 100 A)
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The NUVSSG-1250-200 (1250 V, 200 A)
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The NUVSSG-1250-300 (1250 V, 300 A)
The high-level system design of Stack Switchgear is shown in
Stack Switchgear connects to the daisy-chained Nuvation Energy Cell Interface modules. The Cell
Interface modules convert cell voltage and temperature measurements to digital values to be relayed
to the Stack Switchgear, and enable or disable cell balancing as required. Daisy-chaining the Cell
Interface modules facilitates the design of flexible and scalable battery energy storage systems.
The Stack Switchgear has high-voltage, high-current connectors that are accessible on the front of
the unit. These connect the battery stack to the rest of the system, which is typically a common DC
bus. Safety precautions are required to handle and connect cables into this unit.
The external interfaces to this unit are:
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Battery Stack and DC Bus connectors
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10/100 Base-T Ethernet RJ45 jack (Modbus-TCP)
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Link Bus connector
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E-stop connector
Document ID: NE-PM-003
Figure 4. Nuvation Energy Stack Switchgear Unit
Nuvation Energy High-Voltage BMS - Product Manual
Figure 2. Within a battery stack, the
7 Rev 1.2, 2021-03-03
Curie Update 1