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US20150198652 Method and device for insulation monitoring including alarm diagnosis display  
A method for processing and displaying insulation resistance values in insulation fault monitoring devices for an IT power supply system includes determining an insulation resistance value in...
US20120306510 Method and System for Assessing Insulation Deterioration in Live Underground Power Cables  
A method for assessing insulation deterioration in a live underground power cable may include, in one embodiment, attaching a coupling device to a live underground power cable and using the...
US20150168480 DEVICE FOR CONTINUOUS DETECTION OF A BREAK IN ELECTRIC INSULATION OF A HIGH-VOLTAGE CABLE AND ASSOCIATED DETECTION METHOD  
The object of the present invention is a device (D) for continuous detection of a break in electric insulation between a high-voltage cable (10a, 10b) and an electrical ground (C), the...
US20150077130 Insulation fault locating system using branch-selective feeding, and selective insulation fault monitoring system and method for determining a cross-connection impedance between two subsystems  
The invention relates to an insulation fault locating system using branch-selective feeding and to a selective insulation monitoring system for a branched IT system composed of multiple...
US20110140714 DETERMINATION OF INSULATION RESISTANCE OF AN ELECTRIC DC CIRCUIT  
A method for determining an insulation resistance of an electric DC circuit having at least a first and a second terminal includes performing a measurement cycle, verifying whether the change of a...
US20150219707 DEVICE FOR DETECTING AND MEASURING AN INSULATION FAULT  
A device for detecting an insulation fault of a direct voltage source that can induce electrocution, including: first and second input terminals for the voltage source; first and third resistive...
US20110006782 INSULATION MONITORING OF SERVICING UNITS USED IN A POTROOM FOR THE PRODUCTION OF ALUMINUM BY IGNEOUS ELECTROLYSIS  
A system permanently monitoring the insulation of a frame from its neighbors, comprising: a) an IMD (100);b)) a first portion of measuring circuit (103) connecting said frame (70) to a first...
US20110156719 ELECTRICAL INSULATION TEST APPARATUS  
An electrical insulation test apparatus includes a cap having an indentation, and a conductive cushion arranged in the indentation. The conductive cushion has a receiving space sized to meet a...
US20120074955 METHODS AND SYSTEMS FOR QUANTIFYING DEGRADATION OF WIRING INSULATION  
A system for the measurement of degradation of electrical wire insulation quality is described. The system includes a clamping device for engaging the electrical wire to be tested for insulation...
US20150123676 TEMPERATURE COMPENSATION OF INSULATION MONITORING FOR ROTATING MACHINES  
A system includes a monitoring and/or protection system that includes an insulation derivation circuit. The insulation derivation circuit is configured to derive a first temperature compensation...
US20120119755 INSULATION RESISTANCE MEASUREMENT DEVICE AND INSULATION RESISTANCE MEASUREMENT METHOD  
An object is to detect an insulation failure of a DC circuit with high sensitivity and in safety by means of a simple detection circuit. An insulation resistance measurement device of this...
US20140354317 CIRCUIT BOARD INSPECTION APPARATUS, CIRCUIT BOARD INSPECTION METHOD AND CIRCUIT BOARD INSPECTION TOOL  
A circuit board inspection apparatus configured to perform electrical inspection of wiring patterns formed on a circuit board with a built-in electronic component is provided with a plurality of...
US20140100799 SELECTIVE VOLTAGE BINNING LEAKAGE SCREEN  
Methods and structures for leakage screening are disclosed. A method includes sorting devices manufactured from the same device design into voltage bins corresponding to a respective supply...
US20140159908 ISOLATION RESISTANCE MEASURING APPARATUS HAVING FAULT SELF-DIAGNOSING FUNCTION AND FAULT SELF-DIAGNOSING METHOD USING THE SAME  
Disclosed is an isolation resistance measuring apparatus having a fault self-diagnosing function and a fault self-diagnosing method using the same. The isolation resistance measuring apparatus...
US20140292350 FAILURE DETECTION APPARATUS FOR AN ELECTRICALLY HEATED CATALYST  
The present invention is intended to detect insulation failure of an EHC. In the invention, a heat generation element of the EHC is electrically insulated by an insulating member. Then, a...
US20150028885 METHOD FOR EVALUATION OF CABLE AGING DEGRADATION BASED ON SLICE SAMPLING  
A method for evaluation of cable aging degradation based on slice sampling is revealed. An insulation layer of a cable is aged or degraded from the outside in under influence of high temperature,...
US20100073013 VALIDATION OF ARC FLASH DETECTION SYSTEMS  
An arc flash validation unit may generate stimulus to be received by an arc flash detection unit (AFDU) and observe the response of the AFDU thereto. The response of the AFDU to the stimulus may...
US20150022219 INSULATION STATE DETECTING DEVICE  
In a high-speed measurement mode, a high-voltage measurement mode (V0 measurement) is omitted and only a negative-pole side ground fault resistor voltage measurement mode (VC1n measurement) and a...
US20120256753 ARC FAULT CIRCUIT INTERRUPTER TESTER  
An arc fault circuit interrupter test circuit is disclosed. The test circuit incorporates a controller along with at least one power transistor, a current sense circuit and a voltage sense...
US20110234238 SIMULATION OF PRINTED CIRCUIT BOARD IMPEDANCE VARIATIONS AND CROSSTALK EFFECTS  
A method for altering an impedance of a conductive pathway on a microelectronic package includes applying a magnetic field to the conductive pathway. The microelectronic package may be, for...
US20140103939 DETECTION OF AN INSULATION DEFECT  
An electrical power supply device includes a DC voltage source with terminals, a controller, and an insulation-defect detecting device for detecting an insulation defect of the voltage source. The...
US20130234726 PARTIAL DISCHARGE SENSOR FOR A HIGH VOLTAGE INSULATION MONITORING DEVICE  
The present invention relates to a partial discharge sensor for a high-voltage insulation monitoring device comprising a housing and located in the housing a measurement circuit for measurement of...
US20110241697 INSULATION DIAGNOSIS METHOD, INSULATION DIAGNOSIS SYSTEM, AND ROTATING ELECTRIC MACHINE  
An insulation diagnosis method according to the present invention includes: measurement step through which a signal generated at a diagnosis target device is measured; detection step through which...
US20110227584 INSULATION TEST METHOD FOR LARGE-SCALE PHOTOVOLTAIC SYSTEMS  
In large-scale photovoltaic systems, it is not appropriate to use a conventional insulation monitor, since its test pulse is damped too much by the number and length of the feed lines. According...
US20150061696 BATTERY PROTECTED AGAINST ELECTRIC ARCS  
The invention relates to a DC electrical power supply source including a protective housing andelectrical energy storage devices disposed in the protective housing. The storage devices are...
US20140277321 ALARM FOR LEAD INSULATION ABNORMALITY  
A system is provided to determine whether an insulating layer of an implanted lead is damaged.
US20060022679 Apparatus for partial discharge detection of turn to turn insulation in motor  
The apparatus for partial discharge detection of turn-to-turn insulation in motor has a surge generator for generating a surge voltage to the windings of the motor by applying a pulse voltage, and...
US20110163759 CIRCUIT FAULT DETECTING DEVICE AND METHOD  
To detect accurately an insulation fault in a load circuit, Power supply lines and an electric heater (a load circuit) are connected by a detecting portion to detect a detected voltage (detected...
US20110006802 HIGH SENSITIVITY DIFFERENTIAL CURRENT TRANSFORMER FOR INSULATION HEALTH MONITORING  
A current transformer is provided. The current transformer comprises a magnetic core having a central opening, at least one pair of conductors extending through the central opening and positioned...
US20110241696 Method For The Simulation Of Defects With Spark Testers And Spark Testers  
Method for the simulation of defects in the case of spark testers, in which breakdowns are recognized and displayed by a detector and added by means of a defect counter, wherein the high voltage...
US20110068806 VLF Test Generator  
Disclosed is a very low frequency test generator for generating a high voltage having a low frequency in order to test the insulation of capacitive loads, in particular power cables. Said VLF test...
US20140333325 TEST MODULE DEVICE AND A TEST METHOD FOR MONITORING THE STABILITY OF PROCESSES  
The present invention discloses a test method for monitoring the stability of process and a test module device thereof. The test module device comprises: a substrate, a certain number of the first...
US20150185271 METHOD AND SYSTEM OF DIAGNOSING BREAKDOWN DURING PRE-CHARGING  
A method and system of diagnosing a breakdown during pre-charging are provided. The method includes detecting, by a controller, an output voltage of a battery and pre-charging a capacitor of an...
US20110006781 INSULATION STATE DETECTOR  
An insulation state detector includes a capacitor, a measurement section measuring a charging voltage of the capacitor, a measuring circuit that connects the capacitor, which is insulated from a...
US20150260797 INSULATION FAILURE INSPECTING APPARATUS, INSULATION FAILURE INSPECTING METHOD USING SAME, AND METHOD FOR MANUFACTURING ELECTROCHEMICAL CELL  
Disclosed is a method for manufacturing an electrochemical cell, wherein an insulation failure product can be accurately rejected, and an electrochemical cell can be used again after the...
US20120186071 INSULATION FAILURE INSPECTING APPARATUS, INSULATION FAILURE INSPECTING METHOD USING SAME, AND METHOD FOR MANUFACTURING ELECTROCHEMICAL CELL  
Disclosed is a method for manufacturing an electrochemical cell, wherein an insulation failure product can be accurately rejected, and an electrochemical cell can be used again after the...
US20150198650 METHOD AND SYSTEM FOR PROTECTING AGAINST ELECTRICAL ARCS IMPLEMENTING A MODULATION SPECIFIC TO A MODULE OF THE ACOUSTIC WAVE ACCOMPANYING AN ELECTRICAL ARC  
The invention relates to an electrical system comprising a plurality of modules that can be powered independently withy current, characterised in that it further comprises: a module configured to...
US20100045303 LOOP RESISTANCE TESTER CONTROL SYSTEM  
A method is present for remotely controlling, monitoring, and analyzing loop resistance in a vehicle. A loop resistance test unit is positioned in the vehicle. A set of commands is sent from a...
US20140285214 ELECTRICAL INSULATING PROPERTY TESTER, ELECTRICAL INSULATING PROPERTY TESTING METHOD AND ELECTRICALLY INSULATED WIRE PRODUCING METHOD  
An electrical insulating property tester includes a guaranteed voltage applying unit for applying a guaranteed voltage to a running line provided with an electrical insulating layer around an...
US20140232416 SYSTEM AND METHOD FOR DETECTING AND LOCATING AN INSULATION FLAW IN A SOLAR GENERATOR ON A SPACE VEHICLE  
A system and method for detecting and locating an insulation flaw in a solar generator on a spacecraft. The solar generator comprises a plurality of flaps. Each flap bears at least one solar cell...
US20130006560 EVALUATING NOISE AND EXCESS CURRENT ON A POWER LINE  
The present document discloses several techniques of evaluating parameters relating to noise and excess current on a power line. The techniques are particularly well-suited for characterizing...
US20100308841 CIRCUIT ARRANGEMENT FOR MONITORING AN ELECTRICAL INSULATION  
A circuit configuration monitors the electrical insulation of an electrically conductive part in relation to a first pole and a second pole of an electrical power network for example, an...
US20140002091 CONSTRUCTION MACHINE  
An electric operating system for a construction machine includes a first insulation resistance degradation detection device including a first voltage waveform generation device and a first...
US20100253376 LEAK DETECTOR COMPRISING A POSITION DETERMINING SYSTEM FOR THE HAND-OPERATED PROBE  
The leak detector comprises a basic unit that is connected to a probe by a hose. The probe tip is placed against test zones of the test object. In case that test gas escapes from the test object,...
US20100045305 METHOD AND SYSTEM FOR PARTIAL DISCHARGE TESTING OF AN INSULATION COMPONENT  
The disclosure relates to a method for partial discharge testing of an insulation component, wherein at least one X-ray pulse is applied to the insulation component, an AC voltage is applied to...
US20110148432 METHOD AND DEVICE FOR CHECKING THE ELECTRICAL INSULATION AS WELL AS A METHOD AND SYSTEM FOR PRODUCING PHOTOVOLTAIC MODULES  
An electrical insulation test as well as the production of photovoltaic modules, especially of thin-film photovoltaic modules, provides a current-conducting component disposed on a panel-shaped...
US20100315095 CURRENT TRANSFORMER AND ELECTRICAL MONITORING SYSTEM  
A current transformer comprises a magnetic core having a closed central opening, at least two conductors extending through the central opening and positioned symmetrically within the magnetic...
US20110193563 PARTIAL DISCHARGE MONITOR  
This invention relates to high voltage electrical or power systems and in particular to a method and device for monitoring partial discharges in high voltage electrical or power systems. The...
US20100097070 METHOD FOR PERFORMING A SHIELD INTEGRITY TEST AND FOR ISOLATING TROUBLE IN THE SHIELD USING GRAPHICAL ANALYSIS  
A method for evaluating the integrity of a cable shield utilizing wideband noise-to-ground measurements is provided. Upon determining that trouble with the cable shield exists, a method s is...
US20120221269 METHOD AND SYSTEM FOR DETERMINING DC BUS LEAKAGE  
A method and system is provided for determining leakage resistances in a bus system. The bus system has a floating DC bus connected to bus voltage source. The system also includes a pair of known...
Matches 1 - 50 out of 168 1 2 3 4 >