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Class Information
Number: 361/20
Name: Electricity: electrical systems and devices > Safety and protection of systems and devices > Generator protective circuits
Description: Subject matter comprising means for electrically preventing damage to a generator.


Sub-classes under this class:

Class Number Class Name Patents
361/21 Voltage responsive 84


Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
7623331 Method and system for improving voltage regulator accuracy in vehicle alternators Nov. 24, 2009
7602269 Permanent current switch Oct. 13, 2009
7564662 Overload protection system for an electromagnetic lift Jul. 21, 2009
7551416 Power supply equipped with an independent overload protection mechanism Jun. 23, 2009
7545056 Saturation control of electric machine Jun. 9, 2009
7528611 Methods and system for detecting winding faults in a generator with parallel windings May. 5, 2009
7453674 Method for protecting an electric generator Nov. 18, 2008
7400188 Voltage providing circuit Jul. 15, 2008
7345456 Power system stabilizer providing excitation limiter functions Mar. 18, 2008
7329966 Vehicle-mounted electrical generator control system enabling suppression of supply voltage spikes that result from disconnecting electrical loads Feb. 12, 2008
7304403 Power signaling based technique for detecting islanding conditions in electric power distribution systems Dec. 4, 2007
7262520 Robust power distribution systems and methods Aug. 28, 2007
7253634 Generator protection methods and systems self-tuning to a plurality of characteristics of a machine Aug. 7, 2007
7233128 Calculation of state of charge offset using a closed integral method Jun. 19, 2007
7203041 Primary side turn-off of self-driven synchronous rectifiers Apr. 10, 2007
7167348 Miniaturized motor overload protector Jan. 23, 2007
7164562 Configuration and method for protecting converter means Jan. 16, 2007
7133726 Thermal cycler for PCR Nov. 7, 2006
7113379 DC-DC converter Sep. 26, 2006
7102250 Three-phase generator having increased output Sep. 5, 2006
7095597 Distributed static var compensation (DSVC) system for wind and water turbine applications Aug. 22, 2006
7084609 Alternator controlled rectifier Aug. 1, 2006
7023196 High level arc fault detector Apr. 4, 2006
7006338 System and method for individual phase motor over voltage protection Feb. 28, 2006
6954345 Generator for producing high voltages Oct. 11, 2005
6920023 Current limiting means for a generator Jul. 19, 2005
6917179 Load driver and control method for safely driving DC load and computer-readable recording medium with program recorded thereon for allowing computer to execute the control Jul. 12, 2005
6906480 Regulator control circuit and method Jun. 14, 2005
6891706 Protected exciter for an electrical power generator and associated methods May. 10, 2005
6870332 Multi-functional motor control device Mar. 22, 2005
6856496 Solar tile assembly Feb. 15, 2005
6813123 Method for protecting a DC generator against overvoltage Nov. 2, 2004
6798627 Engine generator set systems and methods providing load power fault protection Sep. 28, 2004
6774614 Method and apparatus for detecting current Aug. 10, 2004
6775113 Safety device for power circuit and fuse box Aug. 10, 2004
6753836 Liquid crystal device driver circuit for electrostatic discharge protection Jun. 22, 2004
6696914 Electrical fuse for rotary current generator with rectifier Feb. 24, 2004
6693778 Diode fault detection and ground fault detection systems Feb. 17, 2004
6606227 High voltage battery cutout circuit for a motor vehicle electrical system Aug. 12, 2003
6594125 Vehicle electrical system arc detection apparatus and method Jul. 15, 2003
6574081 DC-DC converter Jun. 3, 2003
6570269 Method and apparatus for supplying power to a load circuit from alternate electric power sources May. 27, 2003
6534990 Voltage regulator wake up control using frequency detection Mar. 18, 2003
6381109 Method of controlling safety tripping means in a high voltage generator, and high voltage generator using the method Apr. 30, 2002
6351692 Method and apparatus for configuring a genset controller for operation with particular gensets Feb. 26, 2002
6204642 Method and apparatus for modifying limit and protection software in a synchronous generator exciter to match the capability of the turbine-generator Mar. 20, 2001
6181028 Transfer mechanism for transferring power between a utility source and a stand-by generator Jan. 30, 2001
6144160 Lamp with a temperature-controlled automatically protecting circuit Nov. 7, 2000
6118257 Switchgear for a power station generator and a transformer with a three-position disconnector Sep. 12, 2000
6031352 Active alternator load circuit Feb. 29, 2000

1 2 3


 
 
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