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Thermal Runaway Monitoring

 

Thermal runaway is an uncontrolled rise in a battery’s temperature due to exothermic reactions.  This creates a feedback-loop where heat accelerates internal reactions, producing even more heat. This overheating can lead to gas buildup, fires, and/or explosions if not managed. It’s important to mitigate thermal runaway risks and is essential for protecting your operations and investments.

Early Detection: The Key to Prevention

 

Identifying the early signs of thermal runaway is crucial. In lead-acid batteries these signs can include:

  • Increased internal and case temperatures (when compared to ambient)

  • Charge current increase

  • Swelling/bulging of battery case and external connectors

  • Abnormal cell/bloc voltages

Monitoring key parameters in real-time allows for swift intervention before a minor issue escalates into a catastrophic one.

 

Your First Line of Defense

 

The SC4 Site Controller Unit is a monitoring system that offers unparalleled protection for your battery installations. Using the SC4’s built-in thermal runaway detection algorithm, you’ll get early warning of an event long before it ever becomes a hazard. Focusing on the key indicators of a thermal runaway, the algorithm closely monitors:

  • Cell/block temperature
  • Ambient temperature
  • Float current

Additionally, the SC4 provides monitoring of other key aspects of a battery’s health that may change during a thermal runaway event, such as:

  • Voltage (cell/block and string)
  • Resistance of the internal structure of the cell/block as well as connecting hardware
  • Discharge current

Required components: SC4, Float Current Monitoring System, Remote Input Module and temp sensors.

 

Optional components: Battery sensors, Remote Output Module

Explore the SC4

  • Sends SNMP traps to relay information when a threshold is reached per the set points.   
  • Up to 6 strings of batteries on a single SC4 controller (up to 40 batteries per port). 
  • Webpage access through the assigned IP for remote access to data.
  • Files available for download through the web page. 
  • Changes to the configuration can be made remotely with admin privileges. Firmware can be updated remotely as well. 
SC4 Battery Monitoring System
PBT-PA-SC4 The PBT SC4 site controller is a...
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