Page 162 - Practical Power System and Protective Relays Commissioning

162 Practical Power System and Protective Relays Commissioning

The trickle charge and quick charge voltage per cell of the above batter-
ies shall be 2.15 2.25 6 0.02 V and 1.85 2.75 V respectively. The range of
charging current of the batteries shall be as follows:
For 300 Ah battery: Boost charge 42 21 A and float charge 720 240 mA
For 400 Ah battery: Boost charge 56 28 A and float charge 960 320 mA
For 200 Ah battery: Boost charge 28 14 A and float charge 480 160 mA
The minimum demand load on the chargers are:

Charger for 300 Ah battery: 24 A
Charger for 400 Ah battery: 40 A
Charger for 200 Ah battery: 16 A