Patent ID: 7999416
Filing Date: 2011-08-16
Classification: H01H

Abstract:
1. A system for controlling a high voltage switch comprising: an input/output unit for receiving control and command signals, the input/output unit comprising a protection circuit per control and command signal passing therethrough, the protection comprising a surge protector, a first filter, and a first isolator therebetween, and a logical unit connectable to an external power supply and comprising a memory and a processor, the processor configured for determining a voltage to be applied to the high voltage switch using the control and command signals, and transmitting a voltage signal indicative of the voltage to be applied in order to actuate the high voltage switch; an isolation unit comprising a second isolator per control and command signal and for the voltage signal, the isolation unit connected between the input/output unit and the logical unit for transmitting the control and command signals from the input/output unit to the logical unit and receiving the voltage signal from the logical unit; and a power unit connectable to the external power supply and the high voltage switch and comprising a power driver and a filter and isolation sub-unit for powering the input/output unit, the isolation unit, and the high voltage switch through the filtering and isolation sub-unit, the power unit adapted to apply the voltage to the high voltage switch upon reception of the voltage signal from the isolation unit, the filtering and isolation sub-unit comprising a second filter and a third isolator per power signal sent to the input/output unit, the isolation unit, and the high voltage switch.