Abstract: There are provided a method and a system for real time monitoring of a powered on electrical network in a facility in order to detect an electrical anomaly while the electrical network is in use.

Abstract: There are provided a method and a system for real time monitoring of a powered on electrical network in a facility in order to detect an electrical anomaly while the electrical network is in use.

Abstract: There is provided a current sensor for monitoring electrical disturbances on an electrical circuit having an electrical conductor. The current sensor comprises a magnetic flux sensor for sensing a magnetic flux generated by a current flowing in the electrical conductor and for providing a signal representative of the current; and a processor for acquiring the signal from the magnetic flux sensor, for detecting an electrical disturbance on the current and for providing electrical disturbance data. The current sensor may also comprise a ring-shaped magnetic structure for receiving the electrical conductor and an opening within the ring-shaped magnetic structure for receiving the magnetic flux sensor. The magnetic flux sensor being for sensing a magnetic flux generated in the magnetic structure by the current in the electrical conductor.

Abstract: There is provided a current sensor for monitoring electrical disturbances on an electrical circuit having an electrical conductor. The current sensor comprises a magnetic flux sensor for sensing a magnetic flux generated by a current flowing in the electrical conductor and for providing a signal representative of the current; and a processor for acquiring the signal from the magnetic flux sensor, for detecting an electrical disturbance on the current and for providing electrical disturbance data. The current sensor may also comprise a ring-shaped magnetic structure for receiving the electrical conductor and an opening within the ring-shaped magnetic structure for receiving the magnetic flux sensor. The magnetic flux sensor being for sensing a magnetic flux generated in the magnetic structure by the current in the electrical conductor.

Abstract: The invention relates to a current sensor for monitoring electrical disturbances on an electrical circuit having an electrical conductor. The current sensor comprises a magnetic flux sensor for sensing a magnetic flux generated by a current flowing in the electrical conductor and for providing a signal representative of the current; and a processor for acquiring the signal from the magnetic flux sensor, for detecting an electrical disturbance on the current and for providing electrical disturbance data. The current sensor may also comprise a ring-shaped magnetic structure for receiving the electrical conductor and an opening within the ring-shaped magnetic structure for receiving the magnetic flux sensor. The magnetic flux sensor being for sensing a magnetic flux generated in the magnetic structure by the current in the electrical conductor.

Abstract: The invention relates to a current sensor for monitoring electrical disturbances on an electrical circuit having an electrical conductor. The current sensor comprises a magnetic flux sensor for sensing a magnetic flux generated by a current flowing in the electrical conductor and for providing a signal representative of the current; and a processor for acquiring the signal from the magnetic flux sensor, for detecting an electrical disturbance on the current and for providing electrical disturbance data. The current sensor may also comprise a ring-shaped magnetic structure for receiving the electrical conductor and an opening within the ring-shaped magnetic structure for receiving the magnetic flux sensor. The magnetic flux sensor being for sensing a magnetic flux generated in the magnetic structure by the current in the electrical conductor.

Abstract: The attenuation of the stray current impulse limits the capacitive leakage. The value of the inductance, coupled to the parasitic capacitance of the charge, creates a reactive filter effect. Since the effect is reactive, the impulse energy is not absorbed. The energy is therefore redistributed in time, but since the intensity of the tension is greatly diminished, the coupling through the capacitances is diminished. The apparatus comprises a core which includes 1, 2, 3 or 4 coils. The apparatus is typically a high quality reactance which includes a low reactive value in opposition of the line current (residual mode) and a high reactive value for the circulation of the parallel current (common mode).

Abstract: The attenuation of the stray current impulse limits the capacitive leakage. The value of the inductance, coupled to the parasitic capacitance of the charge, creates a reactive filter effect. Since the effect is reactive, the impulse energy is not absorbed. The energy is therefore redistributed in time, but since the intensity of the tension is greatly diminished, the coupling through the capacitances is diminished. The apparatus comprises a core which includes 1, 2, 3 or 4 coils. The apparatus is typically a high quality reactance which includes a low reactive value in opposition of the line current (residual mode) and a high reactive value for the circulation of the parallel current (common mode).

Abstract: The neutralizing system comprises a low impedance current transformer for detecting an alternating stray current flowing through a ground return circuit in the proximity of an animal susceptible to be subjected to this stray current and the corresponding alternating stray voltage. The current transformer has a 1:1 primary-to-secondary transformation ratio. The neutralizing device further comprises a chain of amplification responsive to the alternating stray current detected by the current transformer to produce an alternating compensating current having an amplitude and phase respectively related to the amplitude and phase of the detected alternating stray current. Finally, a magnetic coupling circuit magnetically couples the alternating compensating current to the ground return circuit in view of inducing in that ground return circuit an alternating compensating voltage adding to the alternating stray voltage to substantially cancel this stray voltage and, a consequence the stray current.

Abstract: An electric device is adapted to detect the level of liquid in a receptacle in view of controlling this level of liquid. The receptacle is installed on a milking system for accumulating either milk drawn through piping of the milking system from at least an animal being milked or water during a washing operation of that piping. At least two electrodes are mounted in the receptacle. When the level of liquid reaches a predetermined level, the two electrodes are electrically interconnected and a detecting current flows through the liquid between the two electrodes. The detecting current has a frequency situated within a frequency range substantially higher than 60 Hz, in which the animal being milked has a lower sensitivity to electric current.

Abstract: A method and device neutralize alternating stray current flowing through a ground return circuit in the proximity of an animal susceptible to be affected by this current. The alternating stray current flowing through the ground return circuit is sensed and a signal representative of that stray current is produced. In response to this current representative signal, an alternating compensatory current is generated and injected in the ground return circuit. The alternating compensatory current has an amplitude equal to the amplitude of the sensed stray current and is out of phase with respect to that stray current by an angle of 180.degree.. Therefore, the alternating compensatory current and the alternating stray current add in the ground return circuit and substantially cancel each other whereby the stray current can no longer affect the animal.