| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 324557000 | FOR INSULATION FAULT OF NONCIRCUIT ELEMENTS | 12 |
| 20080258737 | Insulation Inspection Apparatus - An insulation inspection apparatus includes a chamber in which a stator with a winding can be stored, an electrode movable along the outer circumference of a coil end of the stator winding, a voltage application unit applying voltage between the coil end and electrode, a sensor unit sensing leakage current and/or voltage drop between the coil end and electrode, and a pressure reduction unit reducing the pressure in the chamber. | 10-23-2008 |
| 20080309352 | APPARATUS AND METHOD OF WATER ABSORPTION TEST FOR GENERATOR STATOR WINDING INSULATOR USING CROSS CAPACITANCE - A method of water absorption for a generator stator winding insulator using a cross capacitance involves detecting a state of the insulator of the stator winding of the generator using a theory of the cross capacitance, and carrying out the water absorption test of the insulator of the stator winding of the power generator using the detected state in the detecting. | 12-18-2008 |
| 20080315895 | TEST METHOD AND APPARATUS FOR SPARK PLUG INSULATOR - There is provided a test method for detecting the presence or absence of a defect in a spark plug insulator, including a reference voltage determination process, a test area determination process, a test voltage determination process and a current detection process. In the reference voltage determination process, a reference voltage V | 12-25-2008 |
| 20090302864 | Method And Device For Indicating An Electric Discharge Inside A Bearing Of An Electric Drive System - The present invention relates to a method for indicating an electric discharge in a non-conducting medium ( | 12-10-2009 |
| 20110291668 | PROTECTION OF UNSEALED ELECTRICAL CONNECTORS - A monitoring system for connector pins exposed to conductive/corrosive fluids and/or corrosive environments includes a first sensing portion having a pin monitoring section configured to measure a pin current flow of at least one conductor pin, and transfer a first signal. A second sensing portion produces a second signal indicating by a contactless determination the presence of a fastener providing physical connection between an interface member and a component. A decision logic device receives the first and second signals, compares the pin current flow to a predetermined range of values, and isolates electrical power to the conductor pin when the first signal indicates the pin current flow is outside the predetermined range of values. A sensor body created of a non-ferrous material and connected to the component includes a first insert member having the conductor pin and a second insert member defining a sensor sensing proximal presence of the fastener. | 12-01-2011 |
| 20120187958 | ELECTRIC LEAKAGE DETECTION PROTECTIVE CIRCUIT WITH MAGNETIC LOCK MECHANISM - An electric leakage detection protective circuit comprises two normally closed switches. The live wire at the power output terminal is connected to the live wire output plug bush at the power output plug jack via a normally closed switch and constitutes a group of live wire conductors at the power output side; the neutral wire at power output terminal is connected to the neutral wire output plug bush at the power output plug jack via a normally closed switch and constitutes a group of neutral wire conductors at the power output side. When the outlet reset button is at either a trip position or a reset position, the power live wire output terminal is connected to the live wire output plug bush of the power output plug jack, and the power neutral wire output terminal is connected to the neutral output plug bush of the power output plug jack. | 07-26-2012 |
| 20120206152 | ELECTRIC LEAKAGE DETECTION APPARATUS - An electric leakage detection apparatus may quickly detect an electric leakage. An electric leakage detection apparatus may include a pulse generator that supplies a pulse to a coupling capacitor, a voltage detector that detects a voltage at the coupling capacitor, an electric leakage determination unit that compares the voltage detected by the voltage detector with a threshold, and determines presence or absence of the electric leakage of a DC power supply based on a comparison result. The electric leakage detection apparatus may also include a discharge circuit that is operated for a constant time after the pulse falls and forcedly discharges a charge of the coupling capacitor. The pulse generator generates a new pulse when the constant time elapses. | 08-16-2012 |
| 20120206153 | ELECTRIC LEAKAGE DETECTION APPARATUS - An electric leakage detection apparatus may quickly detect an electric leakage. An electric leakage detection apparatus includes a pulse generator that supplies a pulse to a coupling capacitor, a voltage detector that detects a voltage at the coupling capacitor, an electric leakage determination unit that compares the voltage detected by the voltage detector to a first threshold and determines presence or absence of the electric leakage of a DC power supply based on a comparison result. The electric leakage detection apparatus also includes a discharge determination unit that compares the voltage detected by the voltage detector to a second threshold lower than the first threshold and determines whether the detection voltage becomes lower than the second threshold by a discharge of the coupling capacitor. The pulse generator generates a new pulse when the discharge determination unit determines that the detection voltage becomes lower than the second threshold. | 08-16-2012 |
| 20140009169 | METHOD AND A DEVICE FOR DETECTING DEFECTS IN A PACKAGING MATERIAL - A method and a device for detecting defects in a packaging laminate having at least one conductive layer are provided. The method comprises the steps of grounding the conductive layer of the packaging laminate, arranging an electrode adjacent to the packaging laminate, applying a high voltage to the electrode by ramping the voltage from an initial value towards an upper predetermined value, and detecting a defect in the packaging material by registering dielectric breakdown between the electrode and the conductive layer of the packaging laminate. | 01-09-2014 |
| 20160018293 | SINGLE-ENDED HIGH VOLTAGE TIRE INTEGRITY TESTING SYSTEMS AND METHODS - A system and methods for testing the integrity of a tire are disclosed. The tire is tested by powering a charging/timing circuit with a single-ended voltage supply. The single-ended voltage supply, via the charging/timing circuit, provides power to at least two test heads. The timing circuit can include various components that adjust the timing of the charge supplied. | 01-21-2016 |
| 20160169960 | METHOD AND SYSTEM FOR DETECTING MALFUNCTION OF AN ELECTRIC BOILER | 06-16-2016 |
| 324558000 | Where element moves while under test | 1 |
| 20130162265 | HIGH VOLTAGE PROBE APPARATUS AND METHOD FOR TIRE INNER SURFACE ANOMALY DETECTION - A tire testing apparatus and method for detecting anomalies in the surface of a tire is disclosed. A high voltage probe having a conductive spring electrode is placed adjacent a portion of a tire surface such that the conductive spring electrode is compressed against the surface of the tire. Relative motion is imparted between the high voltage probe and the surface of the tire. An electrical discharge occurs between the high voltage probe and a reference electrode at the location of an anomaly on the surface of the tire. The apparatus and method are configured to determine a precise azimuthal and radial position on the tire of the electrostatic discharge. The conductive spring electrode can have a length sufficient to ensure contact with a given point on the tire surface during a charge cycle for the high voltage probe at increased tire surface speeds. | 06-27-2013 |
