DEVICE OF OVERVOLTAGE PROTECTION WITH RECORDING OF ACTUATIONS NUMBER AND MONITORING OF PARAMETERS IN DC LOAD POWER SUPPLY GRID Russian patent published in 2011 - IPC H02H3/08 

FIELD: electricity.

SUBSTANCE: overvoltage protection device with recording of actuations number and monitoring of parameters in the DC load power supply grid comprises a semiconductor protective device - a varistor, which is connected to a protected object with it its inlet, and with its outlet - to a current sensor, a current sensor - the second outlet of which is connected to a capacitor and the first voltage sensor, two voltage sensors - the first voltage sensor connected to the current sensor and to the second outlet of the element, which absorbs impulse energy, the second voltage sensor connected to the protected device, a microcontroller with its own source of supply - to which information channels are connected from two voltage sensors and the current sensor, a results register - connected to the microcontroller outlet.

EFFECT: increased reliability, accuracy and informative value of monitoring.

1 dwg