Dynamic compensation on the spot is one of the best manner of reducing power network loss

enhancing its transmission efficiency. In this paper

a new type of voltage reactive power compensation system based on GPRS is established. Several aspects are studied

including the communication method of GPRS

the construction of intelligent controlling nodes

the problems and the solutions in measuring AC parameters

and the reliability design of system software etc. In this way

the function of dynamic compensation to voltage reactive power has been realized

power network loss has been reduced

the network quality has been improved and the centralized management and monitoring of compensating device has been achieved.