Fault earthing, also known as ground fault, is the accidental connection of the conductor to the earth. AGroundFaultCircuitInterrupter (GFCI) is a new type of circuit breaker that can prevent damage to house wiring and protect people from electric shock. The GFCI constantly monitors the current on the neutral and live wires in the circuit. When all is well, the current should be exactly the same on both wires. Once someone accidentally touches the live wire, the live wire is directly grounded, and the current on the live wire will suddenly surge, but the neutral wire will not. The GFCI immediately shuts down the circuit upon detecting this condition to prevent electric shock injuries. Because the GFCI doesn't have to wait for the current to rise to dangerous levels to take action, it reacts much faster than traditional circuit breakers.

Coilcore can supply current transformer for GFCI application, today, let’s discuss about the current transformer for GFCI.

Feather:

• Precision and steady output characteristics
• Close to zero load shift
• Excellent balance characteristics
• Superior temperature stability

Mechanical Specifications:

Test Circuitry:

Application:

• ZCT11 using to sense minimal differential current caused by the ground fault
• GNT12 using to sense unexpected excessive current change or overload durrent caused by the arc resulted from the fir or the short circuit.
• The assemblies of ZCT11 and GNT12 are aminly applied to the GFCI plugs, GFCI receptacles, connecting with various electric equipment, such as kitchen, rest room, car-washing room. And also these assemblies area applied to the AFCI used in the air-condition.