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Class Information
Number: 361/93.6
Name: Electricity: electrical systems and devices > Safety and protection of systems and devices > With specific current responsive fault sensor > Transformer sensor (i.e., toroidal current sensor)
Description: Subject matter under 93.1 including an inductively coupled device and wherein the abnormal current condition is detected with the inductively coupled device.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7626798 |
Electronic load control unit (ELCU) used as bus tie breaker in electrical power distribution systems |
Dec. 1, 2009 |
| 7619866 |
Electric trip device provided with monitoring means, circuit breaker comprising one such trip device and method of monitoring |
Nov. 17, 2009 |
| 7609497 |
Residual-current-operated protective device |
Oct. 27, 2009 |
| 7548404 |
Combination current sensor and relay |
Jun. 16, 2009 |
| 7483248 |
Method and apparatus for detecting current changes in integrated circuits |
Jan. 27, 2009 |
| 7477501 |
System and method of mounting current transducers in proximity to circuit breakers |
Jan. 13, 2009 |
| 7372687 |
Combination current sensor and relay |
May. 13, 2008 |
| 7362556 |
Combination current sensor and relay |
Apr. 22, 2008 |
| 7336193 |
Device for monitoring the leakage current of a surge arrester |
Feb. 26, 2008 |
| 7330342 |
Safety tester having a high-voltage switching relay protected by an in-line electronic circuit breaker |
Feb. 12, 2008 |
| 7304829 |
Apparatus and method for filtering current sensor output signals |
Dec. 4, 2007 |
| 7227729 |
Arc fault detection technique |
Jun. 5, 2007 |
| 7203047 |
Combination current sensor and relay |
Apr. 10, 2007 |
| 7193829 |
Combination current sensor and relay |
Mar. 20, 2007 |
| 7177129 |
Circuit breaker having a microprocessor-controlled tripping device and a bypass circuit |
Feb. 13, 2007 |
| 7123461 |
Method and device for monitoring switchgear in electrical switchgear assemblies |
Oct. 17, 2006 |
| 7085116 |
Overload current protection device using magnetic impedance element |
Aug. 1, 2006 |
| 7064946 |
Electronic fuse |
Jun. 20, 2006 |
| 7046530 |
Method and apparatus for current limiting of an output of a DC-to-DC converter |
May. 16, 2006 |
| 7042161 |
Ballast with arc protection circuit |
May. 9, 2006 |
| 6900972 |
Circuit interrupter with improved surge suppression |
May. 31, 2005 |
| 6879479 |
Current detector for surge arrester diagnostic and overvoltage assessment in high voltage substations |
Apr. 12, 2005 |
| 6873504 |
System and method for detecting loss of phase in a compressor system |
Mar. 29, 2005 |
| 6873263 |
Water leak detection |
Mar. 29, 2005 |
| 6842319 |
Procedure for producing an initiation signal after the current differential protection principle arrangement |
Jan. 11, 2005 |
| 6788512 |
Electronic trip unit capable of analog and digital setting of circuit breaker setpoints |
Sep. 7, 2004 |
| 6757146 |
Instantaneous overcurrent element for heavily saturated current in a power system |
Jun. 29, 2004 |
| 6754059 |
Multi-pole low voltage circuit breaker with one current measuring device per line |
Jun. 22, 2004 |
| 6747860 |
Power-supply feedthrough protection circuit for 5-volt failsafe CMOS drivers |
Jun. 8, 2004 |
| 6724597 |
Protection device for low voltage networks |
Apr. 20, 2004 |
| 6720749 |
Three-phase motor protector apparatus |
Apr. 13, 2004 |
| 6708126 |
Method and system for measuring current |
Mar. 16, 2004 |
| 6697244 |
Fault-current protection device with an overload protection device |
Feb. 24, 2004 |
| 6650523 |
Protective device, in particular a fault current protective device |
Nov. 18, 2003 |
| 6633471 |
Overcurrent protection circuit, electric leakage protection circuit for an electric apparatus |
Oct. 14, 2003 |
| 6545849 |
Instantaneous fault detection circuit method and apparatus |
Apr. 8, 2003 |
| 6504695 |
Combination current sensor and relay |
Jan. 7, 2003 |
| 6498437 |
Short circuit protection for multiple lamp LCD backlight ballasts with PWM dimming |
Dec. 24, 2002 |
| 6469882 |
Current transformer initial condition correction |
Oct. 22, 2002 |
| 6437954 |
Residual current device |
Aug. 20, 2002 |
| 6392858 |
Electronic trip device with phase reconstitution and a circuit breaker comprising such a trip device |
May. 21, 2002 |
| 6381113 |
Leakage current protection device adapted to a wide variety of domestic and international applications |
Apr. 30, 2002 |
| 6359761 |
Secondary ground fault protection |
Mar. 19, 2002 |
| 6356426 |
Residential circuit breaker with selectable current setting, load control and power line carrier signaling |
Mar. 12, 2002 |
| 6351692 |
Method and apparatus for configuring a genset controller for operation with particular gensets |
Feb. 26, 2002 |
| 6349269 |
Thermal management data prediction system |
Feb. 19, 2002 |
| 6339525 |
Arc fault detector with circuit interrupter |
Jan. 15, 2002 |
| 6337613 |
Three-phase high-current switchgear apparatus with twinned poles per phase, equipped with magnetic compensation circuits |
Jan. 8, 2002 |
| 6335852 |
Programmable fuse and programming device for timer |
Jan. 1, 2002 |
| 6307725 |
Fault-current protective switchgear |
Oct. 23, 2001 |
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