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Battery Monitoring for Power Plants and Substations

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BatteryDAQ’s monitoring systems provide outstanding solutions for NERC PRC-005 compliance

  • The only solution designed specifically for the Utility marketplace
  • Solve for the following common challenges of substation battery maintenance

Key features to enable NERC PRC-005 compliance and streamline battery maintenance

  1. NEMA 4 (IP65) grade protection, so system can be installed in battery room or control room for long term reliable operation
  2. String voltage, cell voltage, float current 24/7 monitoring
  3. High resolution ohmic measurement (internal resistance/impedance) for each cell
  4. Inter-cell connection resistance
  5. Ambient and pilot temperature
  6. Optional electrolyte monitoring
  7. Optional unintentional battery ground detection
  8. Plug and play tool to check battery data and set paramaters
  9. Ethernet with static IP or DHCP
  10. 3G/4G wireless option
  11. Access data anywhere with internet (can be restricted within utility private network.)
  12. MyBattery platform to handle unlimited sites with secured access
  13. Easy integration to existing central management system with data/graph/map.
  14. High level reporting for realtime outage and statistics

BatteryDAQ delivers all elements of a state-of-art battery monitoring solution.  Flexibility and industry-specific designs are two keys to our success.

  • Multitude of sites with different battery manufacturers, models, and capacities.
  • Load testing is difficult to schedule, time consuming, and costly to perform.
  • Existing inspection procedures are often ineffective. Visual inspections, and “snap shot” manual testing cannot reliably identify deteriorated batteries.
  • Post seal/corrosion caused failures.
  • Manual internal resistance/conductance measurement data is often inconsistent.
  • Historical resistance/conductance data is difficult to manage.
  • Overwhelming amount of crippling data.
  • Existing remote battery monitoring systems are costly, unreliable, and ineffective.

What constitutes effective remote monitoring?

  • Your back up power works when needed.
  • Battery-related catastrophic failure can be avoided.
  • Targeted, knowledge-based maintenance can be scheduled. Deteriorated batteries can be identified before initial site visits to severely limit redundancy.
  • Extended battery service life.
  • Battery warranty claims can be simplified with complete historical battery data.
  • Budgeting becomes easier and more accurate.
  • Reduced maintenance and procurement costs.

Comprehensive solutions resulting from 20+ years of battery monitoring experience

  • Robust hardware design for a long service life – set it and forget it.
  • Accurate, high-resolution measurement.
  • Automatically captures discharge curve for each cell.
  • Easy to install and use.
  • Multiple communication methods for battery performance data.
  • Easy to integrate to existing central monitoring software.

The only 24/7 BMS built specifically for vented 2V battery room environments.

Installation example

  • NEMA 4 (IP65) grade protection
  • Internal resistance/impedance
  • Cell-to-cell connection resistance
  • Float current, charge/discharge current
  • Ambient/ Multiple pilot temperature
  • Specific gravity
  • Integrated with 6,000 site capacity

 Roadmap to full scale implementation

  1. Select several sites with old and new batteries.
  2. Install state-of-health BMS from several vendors.
  3. Evaluate all aspects: installation/wiring, field configuration, accuracy, repeatability, discharge capture, actionable data, software and network integration, and technical support.
  4. Compare results from each system, including status quo.
  5. Set a strategic plan for full scale implementation.

Our Sentry series product covers all battery applications for power plants and substations.

DC Power Battery Configuration BatteryDAQ Model/Link Remark
-48V 24x2V, VRLAB Sentry-2402 Install in control room
125V 60x2V, vented/flooded or valve regulated (VRLAB) Sentry-6002NEMA Install in battery room or control room
125V Ni-Cad, up to 97×1.2V vented Sentry-6002NEMA  


Sentry-2412 (low cost)

Install in battery room or control room  

User’s preference to monitor at cell level or multiple cells

125V 10x12V, VRLAB Sentry-1012S2 (100Ah or lower)  

Sentry-2412 (high capacity)

Install control room or cabinet
250V 120x2V, vented/flooded or valve regulated (VRLAB) Sentry-6002NEMA Install in battery room  or control room  

2 units (2×60=120) for one string

250V Ni-Cad, up to 194×1.2V vented Sentry-6002NEMA  


Sentry-2412 (low cost)

Install in battery room or control room  

User’s preference to monitor at cell level or multiple cells

250V 18x12V, VRLAB Sentry-2412 Install in control room or cabinet

All Sentry units support “Automated NERC Report Generation”.

“You can’t finish, if you don’t get started”