Abstract: A noise suppression cable includes an electrical wire, a first magnetic material including a pair of first surfaces formed along an axis direction of the electrical wire and a convex portion projecting from the first surfaces, and a second magnetic material including a pair of second surfaces disposed on a periphery of the electrical wire, the pair of the second surfaces contacting the pair of the first surfaces such that a tubular shape is formed by the first and second magnetic materials. The first magnetic material and the second magnetic material are configured to generate a compression stress in the convex portion of the first magnetic material by receiving an external force so as to reduce a relative permeability of the convex portion.

Abstract: A noise suppression cable includes an insulated wire, an internal magnetic tape layer including a resin layer and a magnetic material layer formed on one surface of the resin layer, the internal magnetic tape layer being spirally wound on a periphery of the insulated wire in a first direction along a longitudinal direction of the cable so as to allow the magnetic material layer of the internal magnetic tape layer to face outside, and an external magnetic tape layer including a resin layer and a magnetic material layer formed on one surface of the resin layer, the external magnetic tape layer being spirally wound on a periphery of the internal magnetic tape layer in a second direction different from the first direction along the longitudinal direction of the cable so as to allow the magnetic material layer of the external magnetic tape layer to face inside.

Abstract: A noise suppression cable includes a conductor wire, and a magnetic insulation layer that is formed around the conductor wire and includes an insulating material and a flat-shaped magnetic powder. A flatness direction of the magnetic powder is oriented in a circumferential direction of the magnetic insulation layer.

Abstract: A shielded cable includes an insulated wire including a conductor wire and an insulation formed around the conductor wire, and a shield layer formed around the insulated wire and including a shield wire. The shield wire includes a tubular member including a conductive material and defining a gap therein, and a magnetic powder is filled in the gap.

Abstract: A noise suppression cable includes a plurality of twisted pair wires, an inclusion that includes an insulating material and a magnetic powder and separates the plurality of twisted pair wires, and a sheath that includes an insulating material and covers a periphery of the plurality of twisted pair wires and the inclusion.

Abstract: An electric current sensor includes a plurality of bus bars arranged in parallel, a plurality of magnetic detection elements that are adapted to detect a strength of a magnetic field generated by an electric current flowing through the bus bars and to output a voltage according to the strength of the magnetic field detected, and an arithmetic operation part to arithmetically operate an electric current flowing through the bus bars based on the voltage output from the plurality of magnetic detection elements.

Abstract: A current detection structure includes a busbar to flow a current therethrough, a magnetic detection element to detect a strength of a magnetic field generated by the current flowing through the busbar, and a current detecting portion to determine the current flowing through the busbar based on the magnetic field detected by the magnetic detection element. A through-hole is formed penetrating the busbar such that a current path is formed on both sides of the through-hole. The magnetic detection element is disposed in the through-hole. The current detecting portion determines the current flowing through the busbar based on a strength of a synthetic magnetic field detected by the magnetic detection element. The synthetic magnetic field is produced by combining a magnetic field that is generated by a current flowing through the current path on the both sides of the through-hole.

Abstract: A current detection structure includes a plurality of busbars arranged in parallel, and a plurality of magnetic detection elements each provided for corresponding one of the plurality of busbars so as to measure a strength of a magnetic field generated by a current flowing through the corresponding busbar. The plurality of magnetic detection elements are mounted on a single circuit board.

Abstract: It is an objective of the invention to provide a high-power supply cable characterized in that even when mounted in a narrow space where the cable undergoes a repetitive bending motion, any undesirable deformation out of the bending plane is small. There is provided a power-supply cable including: an electric wire including an electrical conductor and a resin sheath covering the electrical conductor, the electric wire having a tendency to generate a curl under a no-load condition, the curl having a curling direction, the curling direction being a normal to the curl, the electric wire having one or more longitudinal ends; a connecting terminal disposed at one of the longitudinal ends of the electric wire; and a curling tendency direction indicator showing the curling direction, the indicator being disposed along a normal line to the curl of the electric wire.

Abstract: A malfunction detecting device for a solar cell panel includes an AC source that is provided on one of positive and negative sides of a solar cell panel body and can apply AC voltage superimposed on DC voltage to the solar cell panel, a measuring means provided on another of the positive and negative sides of the solar cell panel body to measure voltage or current output from the solar cell panel, and a control unit including a malfunction determination portion that controls the AC source to control input voltage or input current to be input to the solar cell panel and determines malfunction in the solar cell panel by comparing the input voltage or the input current to output voltage or output current measured by the measuring means. The malfunction determination portion includes a panel body malfunction determination portion and a bypass diode malfunction determination portion.

Abstract: A partial discharge charge amount measuring method includes generating a partial discharge in a sample by applying a voltage from a voltage impressing device connected to the sample, the voltage being higher than a partial discharge inception voltage, continuously measuring and recording terminal voltages of a capacitor connected in series between the sample and a ground at least until a breakdown of the sample occurs by alternately operating at least two data loggers connected to the capacitor at intervals of a predetermined time, calculating an amount of electric charge discharged from the sample and remaining in the capacitor by multiplying a difference in the recorded terminal voltages of the capacitor by a capacitance of the capacitor, and calculating an accumulated discharge amount by accumulating the discharged amount of electric charge at earliest until the breakdown of the sample occurs.

Abstract: A solar photovoltaic junction box for being electrically connected to a solar cell array. The junction box comprises a plurality of input branch lines electrically connected to solar cell strings, an output aggregate line that converges the plurality of branch lines, a back-flow preventing diode provided on each of the branch lines, a capacitor parallel-connected to each of the back-flow preventing diodes, an AC voltage generator that is provided on the aggregate line to allow an AC voltage to be applied to the solar cell array, a measuring means for measuring an alternating current flowing in the solar cell array, and a control unit comprising an malfunction determination portion for determining a malfunction in the solar cell array on the basis of the AC voltage applied by the AC voltage generator and the alternating current measured by the measuring means.

Abstract: A molded product and a method of manufacturing the same are disclosed, in which the insulating layer of uniform thickness is formed in a narrow clearance between plural metal bodies. Surroundings of metal plates spaced at specified intervals are covered with insulating polymer to insulate them electrically. A spacer polymer which consists of insulating polymer whose melting point is T1 is arranged between the metal plates, and a molded part which consists of insulating polymer whose melting point is T2 (<T1) covers surroundings of the metal plates and the spacer polymer.

Abstract: A non-contact power supply system for supplying power from a power transmission-side AC source to a power receiving-side load in a non-contact manner includes a power transmission-side resonance coil receiving AC power supplied from the AC source, a power receiving-side resonance coil having a resonant frequency causing electromagnetic-coupling to the power transmission-side resonance coil, a power transmission-side transformer disposed between the power transmission-side resonance coil and the AC source, and a power receiving-side transformer disposed between the power receiving-side resonance coil and the load.

Abstract: A solar photovoltaic junction box for being electrically connected to a solar cell array. The junction box comprises a plurality of input branch lines electrically connected to solar cell strings, an output aggregate line that converges the plurality of branch lines, a back-flow preventing diode provided on each of the branch lines, a capacitor parallel-connected to each of the back-flow preventing diodes, an AC voltage generator that is provided on the aggregate line to allow an AC voltage to be applied to the solar cell array, a measuring means for measuring an alternating current flowing in the solar cell array, and a control unit comprising an malfunction determination portion for determining a malfunction in the solar cell array on the basis of the AC voltage applied by the AC voltage generator and the alternating current measured by the measuring means.

Abstract: A malfunction detecting device for a solar cell panel includes an AC source that is provided on one of positive and negative sides of a solar cell panel body and can apply AC voltage superimposed on DC voltage to the solar cell panel, a measuring means provided on another of the positive and negative sides of the solar cell panel body to measure voltage or current output from the solar cell panel, and a control unit including a malfunction determination portion that controls the AC source to control input voltage or input current to be input to the solar cell panel and determines malfunction in the solar cell panel by comparing the input voltage or the input current to output voltage or output current measured by the measuring means. The malfunction determination portion includes a panel body malfunction determination portion and a bypass diode malfunction determination portion.

Abstract: A molded product and a method of manufacturing the same are disclosed, in which the insulating layer of uniform thickness is formed in a narrow clearance between plural metal bodies. Surroundings of metal plates spaced at specified intervals are covered with insulating polymer to insulate them electrically. A spacer polymer which consists of insulating polymer whose melting point is T1 is arranged between the metal plates, and a molded part which consists of insulating polymer whose melting point is T2 (<T1) covers surroundings of the metal plates and the spacer polymer.

Abstract: An electric contact and a female terminal have high spring elasticity and high electric conductivity. In the electric contact 1 arranged inside the female contact maker 11, the contact member 2 in an approximately cylindrical shape is formed by the composite member composed of the electric conductive member 3 and the spring member 4.

Abstract: An electric contact and a female terminal have high spring elasticity and high electric conductivity. In the electric contact 1 arranged inside the female contact maker 11, the contact member 2 in an approximately cylindrical shape is formed by the composite member composed of the electric conductive member 3 and the spring member 4.

Abstract: The present invention is concerned with an electromagnetic insulation wire, a method of manufacturing the same and an apparatus for manufacturing the same. The wire comprises a conductor and an electromagnetic insulation coat containing magnetic powder dispersed in a resin matrix. The particles of the powder are oriented in the coat in the circumferential direction of the conductor. The particles are oriented in the magnetic field, while the conductor and the composite material are passed through a die heated to a certain temperature.