Table of Content
Batteries, Cell and Voltage measurement
- Power Sources
- Primary Batteries
- Secondary Batteries
- Dry and Wet cells
- Primary and Secondary cells
- Dry cell and batteries
- Weak dead cell
- Measuring cell Voltage
- Multimeter
- Multimeter as Dc Voltmeter
- Multimeter as Ac Voltmeter
- Multimeter as Ac Ammeter
- Multimeter as ohmmeter
- Resistance zero setting
Battery Chargers
- Constructions
- Working
- Circuit-1
- Circuit-2
- Circuir-3
Secondary Cell (Lead-acid)
- Secondary Cell
- Electrolyte
- Electrodes
- Polarity of Electrodes
- Electrolysis
- Container
- Plates
- Plante Plates
- Faure Plate
- Separators
- Electrolyte
- Working Principle
- Relation between the voltage and the specific gravity
- No of plates
- Defects
- Hard Sulphation
- Buckling
- Partial Short
- Effect pf temperature on batteries
Secondary Cell (Nickel-Iron)
- Parts
- Chemical Changes
- Characteristics
- Efficiency
- Specification of batteries
- Comparison Lead Acid Cell and Nickel –Iron or Edison Cell
Secondary Cell battery charging
- Battery Charges
- Charging Current
- Specific gravity measurement
- Voltage Measurement
- High rate discharge tester
- Constant Current method
- Constant potential method
- Rectifier method
- Trickle Charge
- Use
- Initial Charge
- Freshening Charge
- Boost Charge
Secondary Cell Battery - Care and Maintenance
- Care and Maintenance of batteries
Method of Maintenance and Servicing of Battery Chargers
- Sectionalizing the Faulty State
- Input Stage
- Transformer Stage
- Rectifier Stage
- Imbalance in Three-phase rectifiers
- Selenium rectifier-life
- Testing rectifier diodes
- Open Input filter capacitor
- Shorted input filter capacitor
- Open output filter capacitor
- Shorted output filter capacitor
- Open filter Choke
- Excessive hum
- Visual Inspection
- Trouble-Shooting technique in battery charger
Primary Cells
- Cell
- Difference between Primary and Secondary Cells
- Primary Cells
- Simple voltaic Cell
- Characteristic of the Cell
- Internal Resistance of a Cell
- Electromotive Force of a Cell
- Potential Difference of a Cell
- Capacity of the Cell/Battery
- Energy Density of the Cell
- Example
- Shelf Life
- Precautions to Be Followed in Using Cells
Grouping of Cells
- Necessity of Cell Groupings
- Series Cell Connections
- Precautions While Connecting Cells in Series
- Parallel Connection
- Example
- Series-Parallel Connection
- Example
- Testing Primary Cells or Batteries
Secondary Batteries – Principle, Maintenance and Recharging
- Secondary Batteries
- Lead-acid, wet Type Cells
- Principle of chemical action
- Discharging of lead-acid cells
- Charging of lead-acid cells
- Important Tips
- Construction of lead-acid batteries
- Current ratting of Lead acid batteries
- Effect of temperature on ah capacity of lead-acid batteries
- Specific gravity of electrolyte
- Topping up of lead-acid battery cells
- Do not add tap water or well water for topping up this will reduce cell life
- Care and routine maintenance of lead-acid batteries
- Recharging lead-acid batteries
- Constant current battery charging
- Constant voltage battery charging
- Trickle Charging
- Float charging
- Precautions for Charging Battery
Testing of a Battery
- Dry Cells
- Wet Cells
- Primary Cells
- Secondary Cell (Lead acid Battery)
- Lead acid Battery
- Construction
- Chemical Reactions
- Discharging
- Charging
- High rate discharge tester
- Voltage Check of battery
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