Description
In medium- and high voltage networks, the free programmable regulator REG-DP is used for the automatic control of Petersen-coils ( P-coils ), which are continuously adjustable on load. Furthermore, the controller can solve a lot of control-, measuring- and recording tasks all around the Petersencoil.

Control methods
As a standard feature, the regulator offers different methods for the automatic control of a Petersen-coil. Depending on the requirements, the REG-DP can control either to a percentage or absolute detuning-current or a given zero-sequence- voltage. It is remarkable, that during a ground-fault, the Petersen-coil can be corrected by the detuning and adjusted to the resonance point. Furthermore, there are different methods available for the control of several Petersencoils in the same network.