automatic servo stabilizers

servo stabilizer is only the equipment that maintaines output voltage of it within tolerable limit,

for that there is a reference voltage and measured voltage, it produces the error between them and correct it through variac,

it keeps output voltage within its limit with irrespective of the change in the input voltage and load current thourgh error detectro and through variac, i.e. 230 V +/- 15 V for example with keeping output frequency same as that of input.

the KVA capacity of the stabilizer determines from the output voltage and continuous current it can handle.

buck down means to reduce

boost up means to increase

buck down must be in series with load whereas boost up must be in parallel with load,

to understand more about buck - boost, please refere any related book,

regards

divyesh patel

Apart form all the above, it contains a reversible synchronous motor directly coupled with variac shaft. The motor movement is controlled by voltage controll circuit.