Patents
Sitemap › H02 - Generation, conversion, or distribution of electric power › H02H - Emergency protective circuit arrangements › H02H 5 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
Patents for H02H 5 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection (5,568)
12/2003
12/04/2003DE20312462U1 Überhitzungsschutzschaltung für einen bürstenlosen Gleichstrommotor Overheating protection circuit for a brushless DC motor
12/02/2003US6657839 Protective relay
12/02/2003US6657834 Reset lockout for circuit interrupting device
11/2003
11/27/2003WO2003098763A1 Modified buchholz relay for continuous monitoring of gas generated by transformer internal faults
11/19/2003CN1457542A Protection circuit-equipped secondary battery
11/12/2003EP1361636A1 Protective switch for cable drum
11/12/2003CN1455485A Apparatus of preventing overheat of power source part for air conditioner
11/11/2003US6646839 Surge suppressor
11/11/2003US6646838 Circuit interrupting system with independent trip and reset lockout
11/05/2003CN2585242Y Load overcurrent alarming device and connector overtemperature alarming device
10/2003
10/29/2003EP1357386A2 Device and method for electrical charge detection and electrical apparatus equipped with such a device
10/29/2003CN2583852Y Automatic protective earth leakage switch for fire
10/29/2003CN1126133C Self protection tripping mechanism for subway electric transformer
10/23/2003US20030197513 Open-circuit failure detection circuit
10/15/2003EP1353429A1 Protection circuit-equipped secondary battery
10/15/2003EP1353428A2 Line interruption protection circuit
10/15/2003CN1449081A 电子电路防水器 Waterproof electronics devices
10/07/2003US6631063 System for monitoring electrical circuit operation
10/07/2003US6630748 Load control apparatus and method having single temperature detector
10/01/2003CN2577310Y Electronic electric actuator
10/01/2003CN2577309Y Angle-travel electronic electric actuator
09/2003
09/30/2003US6629021 Techniques for detecting ground failures in bathing installations
09/30/2003US6628491 Semiconductor component with a circuit for driving an electrical load
09/25/2003US20030179529 Circuit protection device
09/23/2003US6624995 Semiconductor device and method of activating a protection circuit with a sampling pulse
09/23/2003US6624604 Wiper controller with fault detector device
09/23/2003US6623244 Heater material
09/18/2003WO2003077397A1 Heating device having a flexible heating body
09/18/2003US20030174453 Power protection
09/18/2003US20030174449 Power tools
09/16/2003US6621678 Thermal protection circuit and method for protecting power delivery circuit
09/16/2003US6621677 Method and system for series fault protection
09/16/2003US6621671 Shock hazard protection system
09/16/2003CA2162350C Circuit breaker using bimetal of thermal-magnetic trip to sense current
09/03/2003CN2571046Y Electric fire prevention comprehensive protection recorder
08/2003
08/28/2003US20030159728 Device for protecting a photovoltaic module against hot spots and photovoltaic module equipped with same
08/27/2003CN2569402Y Overheat protector for power supply
08/21/2003US20030156367 Arc fault circuit interrupter with upstream impedance detector
08/20/2003CN2567849Y Protective control box for shield device pump
08/14/2003US20030151864 Submergence-responsive switching member driving circuit
08/13/2003CN2566512Y Explosion-proof water pump protective controller for mine
08/07/2003US20030147192 Apparatus for protecting electronic equipment by detecting thunder
08/06/2003EP1333552A2 Method and apparatus for fault condition detection in the power supply to a load
08/06/2003CN2565186Y Power interruption controller for mine
08/06/2003CN2565179Y Premounted integrated protector for transformer substation
07/2003
07/30/2003EP1331836A2 Electrical heatable warming device with flexible heatable assembly
07/30/2003CN2563806Y Electronic voltage regulating circuit
07/30/2003CN2563805Y Automatic protective plastic casing breaker for fire
07/30/2003CN2563804Y Overheat protector for electric appliance
07/29/2003US6600641 Overcurrent protection for the series fuse
07/29/2003US6598604 Fault protection system for a respiratory conduit heater element
07/24/2003WO2003061091A1 Solid state ac switch
07/24/2003WO2003061089A1 Safety device for electrical apparatus
07/24/2003US20030137392 Fault sensing wire and alarm apparatus
07/17/2003US20030134183 Protection circuit-equipped secondary battery
07/17/2003US20030133236 Device safety system and method
07/17/2003DE20302568U1 Method for connecting the heating wires of an electric blanket has a connecting plate with a fuse in series with the heating circuit
07/16/2003CN2561150Y Open-phase superheat monitoring protector
07/16/2003CN1430317A Over-heat protective circuit
07/09/2003CN2560138Y Loading branch intelligent circuit breaker
07/08/2003US6590188 Control system for bathers
07/03/2003US20030123206 Thermal trip power control circuit
07/03/2003US20030123205 Overcurrent protection circuit
07/02/2003EP1324452A2 Overcurrent protection circuit
06/2003
06/25/2003CN1426148A Carrier type motor alarm protector
06/18/2003DE20220276U1 Monitor for electric current supply, measures and evaluates individual line parameters and disconnects or gives alarm if necessary
06/17/2003CA2123600C Personnel protection system for electrical power connections
06/03/2003US6573814 Electromagnetic relay and circuit substrate comprising the same
05/2003
05/28/2003CN2553549Y Electricity-stealing-utilization-preventing intelligent controller for power distribution metering box and cabinet
05/22/2003WO2003043158A1 Protective power supply interface
05/21/2003EP1312149A2 Protective relay
05/21/2003CN2552156Y Automatic fire protection type electric leakage circuit beaker
05/14/2003EP1310040A2 Circuit configuration for identifying a faulty state
05/08/2003US20030086225 Surge suppressor
05/06/2003US6560086 Transient voltage surge suppressor
05/06/2003US6560079 Ground loss detection for electrical appliances
05/01/2003US20030079748 Fault protection system for a respiratory conduit heater element
04/2003
04/30/2003DE10133615C1 Apparatus for acquiring undissolved gases in devices filled with liquid, especially high tension devices e.g. high voltage transformers, comprises measuring system for acquiring gases volumetrically in course of their production
04/30/2003CN2548343Y Generator stator inner-cooled water-break automatic load-limiting protection apapratus
04/29/2003CA2293932C Power supply control device and method of controlling the same
04/23/2003CN2547049Y Electric drill source with the purpose of anti-misdrilling underground metal pipeline
04/22/2003US6552888 Safety electrical outlet with logic control circuit
04/17/2003WO2002095894A8 Device for detecting temperature variations in a dc power supply installation
04/17/2003US20030072119 Solid state switch with temperature compensated current limit
04/16/2003EP0995253A4 Electric installation protecting means
04/16/2003CN2545735Y Full-automatic universal AC voltage-regulated protector
04/15/2003US6549385 Test circuit for a withstand voltage tester
04/15/2003US6549033 Signal processing device and process and electrical apparatus comprising such a device
04/10/2003US20030067735 Ultracapacitor energy storage cell pack and methods of assembling and cooling the same
04/09/2003CN2544447Y Temp. protector for stepping motor
04/03/2003US20030063423 Thermal shutdown control for multi-channel integrated circuit boards
04/03/2003US20030063008 Method and apparatus for detecting failure in solar cell module, and solar cell module
04/02/2003EP0990292B1 Method and device for monitoring insulation and fault current in an electrical alternating current network
04/02/2003CN2543258Y Leakage current actuating protector with temp. control
03/2003
03/27/2003WO2003026092A1 Safety device
03/27/2003US20030058590 Shock hazard protection system
03/27/2003DE20301222U1 Potential control for fluid held in container provided with insulated electrical device uses conductive probe depending into fluid coupled to external protection device
03/26/2003CN2541983Y Distribution transformer over heat protector with a.c. contactor in low voltage side master loop
03/18/2003US6534947 Pump controller
03/06/2003DE10143896C1 Electric hammer drill has insulation protection circuit for automatic cut-out of electric drive motor when tool bit contacts earthed metal object or voltage line
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