Float charging is used where load is constantly connected with DC batteries. In Float charging Load, DC Batteries and Float charger are connected in parallel. Batteries are constantly connected with load.
So, float charger provides load current and charging current to battery. In, Float charging the rate of charging is equals to battery self discharging rate.
Battery chargers are providing with Float and Boost charging mode and also each mode with Auto and Manual Mode. Float voltage to be set in charger depends on type of battery, temperature conditions, etc.
In every Battery charger two sections are there (1) Boost charger (2) Float charger.
Definitions CSD (Controlled Switching Device): A device that is installed at the relay and control panel to overcome the transient behaviour of voltage and current during switching. This device synchronizes the switching of each pole of the circuit breaker according to the zero crossing of the corresponding phase. This device is also known as a phase synchronizing device, or PSD for short. Requirement When we switch off an online circuit breaker to disconnect an inductive load, we ideally want to interrupt the current of the system at the zero crossing of the current waveform. However, this is practically impossible to achieve. In a normal circuit breaker, the current interruption may occur near the zero crossing point, but not exactly at it. Since the load is inductive, this sudden interruption of current causes a high rate of change of current (di/dt), which results in a high transient voltage in the system. In low or medium voltage power systems, this transient voltage during circui...