Function :
GIM is used for monitoring the insulation resistors of the IT power grid. When the low insulation fault occurs, the systern can find out the fault branch to help maintain the power system.
GIM is consist of Insulation monitor, Insulation fault location module, and Current sensor.
Insulation monitor is used for monitoring the insulation resistors of the IT power grid. When
the value is lower than set, it starts sending the detective signal
The Insulation fault location module collect the leak current of the current sensor installed in
the branch of the power grid, to judge which branch has the fault
The current sensor needs to be crossed by ABC three-phase wires at the same time. When there is no insulation fault, the vector sum of three-phase current is zero, and the CT can not collect any signal; When the fault occurs, the detective signal will flow from the branch to the earth, and the CT can sense the signal and judge the fault branch.
The Insulation monitor can show the fault branch on screen, and send the information to the
host by Rs485.
Features :
Measuring function of voltage, frequency, insulation resistance and leakage capacitance of systern.
Two digital output,
RS485 communication;
Interface interaction funcion;
Fault branch location function
Low insulation fault monitoring function
