Pilot Temperature sensor - Battery Monitoring System - Flooded Lead acid

[NickParker]

Refer to the attached drawing below,

Questions:
1. Temperature compensation Sensor (Connected from the Battery bank to the DC UPS)
- What is the purpose of this temperature compensation sensor? Out of the 62 Cells, to which cell this sensor is connected to?
2. Pilot temperature sensor (Connected from the Battery bank to the Battery Monitoring System)
- What is the purpose of this sensor? Does it refers to pilot cell? or
- Are the sensors connected to each 62 cells to measure the temperature? the cell being flooded lead acid, does it measure the electrolyte temperature?
- If so can the sensor be dipped into Electrolyte to measure the temperature? What type of sensor is used here so that sensor does not get corroded as it
is dipped in the electrolyte

 

[itsmoked]

The charging voltage of LA batteries is critical to their lifetime. You are to charge them to a voltage specifically set to their temperature. Sensors are normally attached to outside of the "most typical" battery.

For the longest lifetime battery banks should be setup so all ends of all battery cells are exposed to air flow. Otherwise cells on one side of a bank can be operating at a different temperature than other cells.

Keith Cress
kcress -

http://www.flaminsystems.com