Patents
Sitemap › H02 - Generation, conversion, or distribution of electric power › H02H - Emergency protective circuit arrangements › H02H 7 - Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
Patents for H02H 7 - Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions (32,726)
12/2003
12/04/2003US20030222610 Motor speed-based anti-pinch control apparatus and method with endzone ramp detection and compensation
12/04/2003US20030222509 Method and apparatus for node electronics unit architecture
12/04/2003DE20312462U1 Überhitzungsschutzschaltung für einen bürstenlosen Gleichstrommotor Overheating protection circuit for a brushless DC motor
12/03/2003EP1367684A1 Overload current protection device using magnetic impedance element
12/03/2003CN2590275Y Power supply special for electric curtain
12/03/2003CN2590237Y Multifunctional current meter
12/03/2003CN2590236Y Modularized communicating intelligent motor protection
12/03/2003CN1459922A Abnormal detector for motor driving system
12/03/2003CN1459903A Huge flush out current, short circuit and overload protection three in one circuit
12/03/2003CN1129743C Air conditioner
12/02/2003US6657833 Relay welding detector and detecting method
12/02/2003US6657407 Method for determining the rotational position of the drive shaft of a direct current motor
12/02/2003US6657316 Window control apparatus
11/2003
11/27/2003WO2003098765A1 Protective circuit
11/27/2003WO2003098764A1 Quench detector
11/27/2003US20030220719 Method and apparatus for centrally-controlled electrical protection system architecture reliability improvement based on sensitivity analysis
11/27/2003US20030218837 Digital power inverter
11/27/2003US20030218443 Abnormality detector for a motor drive system
11/26/2003EP1364825A1 Method for operating an electrical motor
11/26/2003EP1364437A2 Aircraft applicable ground fault circuit interrupter
11/26/2003CN2588641Y Anti-action protector for current breaker
11/26/2003CN2588640Y RC protector for pipe shape curtain-rolling motor
11/26/2003CN2588639Y Fully automatic protector with double-centrifugal switch for electric motor
11/26/2003CN2588638Y Electronic coverting energy-switching magnet-eliminating protector for generator
11/26/2003CN1459142A Method and device for controlling operation of an actuator unit
11/26/2003CN1458725A Method for realizing theoretical criterion protection of distribution network feed line single phase earth fault
11/26/2003CN1458724A Voltage regulator with high performance overcurrent protection
11/26/2003CN1129221C Relay protection method based on excitation impedance variation to judge excitating surge current of transformer
11/26/2003CN1129220C Relay protection method based on excitation impedance variation to judge over-excitation of transformer
11/25/2003US6654217 Quick responding instantaneous trip system
11/25/2003US6654216 Distributed monitoring and protection system for a distributed power network
11/20/2003WO2003096523A1 Reduced energy multiple-function digital controller for motors and appliances
11/20/2003WO2003096507A1 Inverter for an electric machine
11/20/2003WO2003073576A3 Method and apparatus for ground fault protection
11/20/2003US20030216876 Method and apparatus for ground fault protection
11/20/2003US20030214907 Method for communicating information bundled in digital message packets
11/20/2003DE20312116U1 Arc discharge protection system for high-voltage electrical equipment has electrode disk, voltage switching circuit, rectifier and trigger circuit
11/20/2003DE10203909C1 Lade/Entlade-Schutzschaltung für eine wiederaufladbare Batterie Charge / discharge protection circuit for a rechargeable battery
11/19/2003EP1362409A1 Anti-pinch power window system and method
11/19/2003CN2587101Y Motor overload protector of DC electric tool
11/19/2003CN2587100Y DC motor locked-rotor detecting device
11/19/2003CN1457542A Protection circuit-equipped secondary battery
11/19/2003CN1457125A Improved power-line protection
11/19/2003CN1128367C Electric energy metering controller for oil pumping machine
11/18/2003US6650969 Electrical fault protection system
11/18/2003US6650524 Power supply circuit with adaptive error detection and an electronic control circuit including the same
11/18/2003US6650521 Voltage division method for protection against load dump conditions
11/18/2003US6650518 Load protection system in a power modulator
11/18/2003US6650517 Ballast safety circuit
11/18/2003US6650245 Multi-functional hybrid contactor
11/18/2003US6650075 Fan motor
11/13/2003US20030212835 Method and system for external clock to obtain multiple synchronized redundant computers
11/13/2003US20030212515 Data sample and transmission modules for power distribution systems
11/13/2003US20030212513 Configuring a centrally controlled circuit breaker protection system
11/13/2003US20030212473 Processing system for a power distribution system
11/13/2003US20030210509 Semiconductor switching device
11/13/2003US20030210011 Stall protection based on back EMF detection
11/12/2003EP1361638A2 Improved power line protection
11/12/2003EP1297895B1 Electrostatic painting device
11/12/2003CN2586279Y Overpower protective circuit of switch mode power
11/12/2003CN2586278Y Protective structure of surface adhered assembly with additional fuse
11/12/2003CN1455488A Integrated protection, measuring and controlling technique of converting station based on multi-agency
11/12/2003CN1455193A Digital direct-current variable frequency air conditioner controller
11/11/2003US6646398 Safety device for power window
11/07/2003CA2428287A1 Improved power line protection
11/06/2003US20030206385 Low speed resistor and stall protection assembly for engine cooling fan motor
11/06/2003US20030205980 Movable barrier operator
11/06/2003US20030205977 Motor drive control apparatus and method having motor current limit function upon motor lock
11/06/2003US20030205938 Integrated protection, monitoring, and control system
11/05/2003CN2585463Y Intelligent and contactless type contactor
11/05/2003CN2585462Y Protector for electric motor
11/05/2003CN1453917A Overcurrent protector for dc-to-ac converter and mixed integrated circuit equiped with the same apparatus
11/04/2003US6643155 Power semiconductor device, power arm and inverter circuit
10/2003
10/30/2003WO2003055030A8 Method for detecting a defective cooling fan and for generating an alarm signal
10/30/2003US20030202297 Three-in-one protection circuit against out-rush current, short circuit and overload
10/29/2003EP1357657A1 Stop control device for single-phase asynchronous motor with capacitor
10/29/2003EP1356568A1 Electrical system for a ship
10/29/2003EP1356564A1 Protection systems for power networks
10/29/2003EP1356563A1 Brushless dc machine
10/29/2003EP1356562A1 Appliance for protecting a boat generator and for synchronisation
10/29/2003EP1116313B1 Method and arrangement for electrically controlling and regulating the movement of an electrically operated aggregate of a motor vehicle
10/29/2003CN2583877Y Multifunctional electricity-saving protector for motor
10/29/2003CN2583854Y Protective circuit of intelligent electronic device
10/29/2003CN2583853Y Optical controlled protector for electric motor
10/29/2003CN1452287A Failure component extracting algorithm based on failure type
10/29/2003CN1126133C Self protection tripping mechanism for subway electric transformer
10/28/2003US6639767 Semiconductor switching devices
10/28/2003US6639502 Overload protector with control element
10/28/2003US6639444 Protection circuit
10/28/2003US6639389 Arrangement and method for protecting multiple voltage supply systems against voltage arc-over between different voltage planes and against pole reversal from the outside
10/23/2003WO2003088469A1 Method and apparatus for pulse variable-controlled movable obstacle detection
10/23/2003CA2448910A1 Method and apparatus for pulse variable-controlled movable obstacle detection
10/22/2003EP1012958B1 Motor reversing circuit
10/22/2003EP0970554B1 Process and arrangement for selective network monitoring for switchgear
10/22/2003CN2582268Y Control circuit for increasing functions for simple machine tool
10/22/2003CN2582246Y Open-phase protection device for three-phase motor
10/22/2003CN2582245Y AC contacting device for open-phase protection
10/22/2003CN2582244Y Electricity-saving and protecting devcie for three phase asynchronous motor
10/22/2003CN2582243Y Comprehensive protective device for coal mine motor
10/16/2003US20030193769 Algorithm for detecting faults on electrical control lines
1 ... 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 ... 328