SELF POWERED COMPACT SENSOR WITH CURRENT AND VOLTAGE SENSING

摘要

The present invention provides a current sensor conjunction with isolated system voltage measurement module. The present invention provides an assembly of sensor(s) for sensing current and voltage in a circuit breaker. The assembly comprises: a self powered current sensor comprises a sensing coil, a magnetic core current transformer for sensing current through a magnetic field of the bus bar; a voltage sensor; a sensor box for enclosing the current sensor; wherein the sensor box comprises a cavity with a live clip means for accommodating the voltage sensor. The assembly isolating the voltage sensor from the live part(s) of the current sensor, thereby sensing the voltage level of the circuit breaker.