Apparatus for detecting voltage and current status in electric power system
OwnerSatoshi Kitamurainventor
Life of this patent
Estimating the term…
Abstract
A contactless apparatus for detecting voltage and current statuses on conductors of electrical equipment in an electric power system. The apparatus detects whether the conductors are in a voltage mode or a current mode by detecting vibrations of the conductors from a distance. The apparatus irradiates a laser beam on the conductors, detects the vibration, and provides result to an output unit such as a display. In addition, a vibration is forcefully produced on the conductors upon irradiating an electromagnetic wave of selected frequency by an electromagnetic wave generator of the apparatus.
Claims12
An apparatus for detecting a voltage and current status of conductors of electrical equipment as to whether in a voltage mode or a current mode, comprising:
- a vibration detector for irradiating a wave on the conductors of the electrical equipment and detecting a vibration of the conductors based on a frequency of an incident wave and a frequency of a reflected wave;
- a processor for determining either the voltage mode or current mode when an amplitude of a specific frequency extracted from the vibration of the conductors exceeds a predetermined value;
- and
- an output unit for indicating the voltage mode or current mode determined by the processor;
- wherein the voltage mode is defined as a status where a voltage is applied to the conductors while no current is flowing the conductors, and the current mode is defined as a status where a voltage is applied to the conductors and a current is flowing through the conductors.
An apparatus for detecting a voltage and current status of conductors of electrical equipment as to whether in a voltage mode or a current mode, comprising:
- an electromagnetic wave generator for irradiating an electromagnetic wave of a selected frequency on the conductors of the electrical equipment and detecting a vibration of the conductors based on a frequency of an incident wave and a frequency of a reflected wave;
- a processor for determining either the voltage mode or current mode when an amplitude of a specific frequency extracted from the vibration of the conductors exceeds a predetermined value;
- and
- an output unit for indicating the voltage mode or current mode determined by the processor;
- wherein the voltage mode is defined as a status where a voltage is applied to the conductors while no current is flowing the conductors, and the current mode is defined as a status where a voltage is applied to the conductors and a current is flowing through the conductors.
An apparatus for detecting a voltage and current status of conductors of electrical equipment as to whether in a voltage mode or a current mode, comprising:
- a vibration detector for irradiating an electromagnetic wave of a selected frequency on the conductors of the electrical equipment and detecting a vibration of the conductors based on a frequency of an incident wave and a frequency of a reflected wave;
- a processor for determining either the voltage mode or current mode when an amplitude of a specific frequency extracted from the vibration of the conductors exceeds a predetermined value;
- and
- an output unit for indicating the voltage mode or current mode determined by the processor;
- wherein the voltage mode is defined as a status where a voltage is applied to the conductors while no current is flowing the conductors, and the current mode is defined as a status where a voltage is applied to the conductors and a current is flowing through the conductors.
Dependencies are inferred from the claim text.