| 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) |
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| 11/13/2013 | CN203289176U Transmission line disconnection protection and emergency power supply device |
| 11/13/2013 | CN203289172U Snakelike robot-based distributed robot-mounted direct current power supply system |
| 11/13/2013 | CN203289168U Charger circuit for lead-acid battery |
| 11/13/2013 | CN203289089U Novel high-efficient arc-extinguishing lightning arrester separator |
| 11/13/2013 | CN203289088U Overvoltage protection device used for DC side of flexible DC power transmission system |
| 11/13/2013 | CN203289087U Charging/discharging protection circuit of battery |
| 11/13/2013 | CN203289086U Storage battery protection system |
| 11/13/2013 | CN203289085U Battery charge protection circuit, and charger using battery charge protection circuit |
| 11/13/2013 | CN203289084U Overheating protective device for polishing machine |
| 11/13/2013 | CN203289083U Overheating automatic protection device of polishing machine |
| 11/13/2013 | CN203289082U Motor protector |
| 11/13/2013 | CN203289081U Protective device for abnormal shutdown of novel water wheel generator |
| 11/13/2013 | CN203289080U Rotor one-point-ground protection device |
| 11/13/2013 | CN203288411U Transformer module |
| 11/13/2013 | CN103391816A Regenerative braking safety system and method of use |
| 11/13/2013 | CN103391013A Missile test switch power supply with fault memorizing function |
| 11/13/2013 | CN103390888A Zero sequence active component protection criterion |
| 11/13/2013 | CN103390887A Method for isolating faults of power distribution system with micro-grid |
| 11/13/2013 | CN103390886A Circuit distance protection maloperation prevention method |
| 11/13/2013 | CN103390885A Method for enabling distance protection to enter power system oscillation interlocking logic |
| 11/13/2013 | CN103390884A Power source detection control device and power supply control system |
| 11/13/2013 | CN103390883A Lithium battery charging protection circuit |
| 11/13/2013 | CN103390882A Oversea power grid protection constant value modification method |
| 11/13/2013 | CN103390881A Intelligent protection circuit and method of unified power quality conditioner |
| 11/13/2013 | CN102291876B Open circuit protector of light-emitting diode (LED) |
| 11/13/2013 | CN102255283B Current fault component vector phase comparison protection method |
| 11/13/2013 | CN102231515B Control protection method, device and system for series capacitor device |
| 11/13/2013 | CN102185299B Method and device for processing failures of multi-scheme distribution network |
| 11/13/2013 | CN102185294B Wire microcomputer protection device based inrush discrimination technology |
| 11/13/2013 | CN102057550B Method for detecting an error in an induction machine |
| 11/13/2013 | CN101755373B Protective device and method for operating a protective device |
| 11/13/2013 | CN101647170B Electric power generation system and methods |
| 11/12/2013 | US8583954 Power source coupling and decoupling in medical device |
| 11/12/2013 | US8582331 Inverter topologies usable with reactive power |
| 11/12/2013 | US8582268 Circuit for preventing inrush current |
| 11/12/2013 | US8582256 Superconducting resistive fault current limiter |
| 11/12/2013 | US8582254 Switching array having circuitry to adjust a temporal distribution of a gating signal applied to the array |
| 11/12/2013 | US8581541 Motor drive with configurable signal conditioning apparatus and method |
| 11/12/2013 | US8581448 Control device of power supply circuit |
| 11/07/2013 | WO2013165753A2 System and method for ground fault detection and protection in adjustable speed drives |
| 11/07/2013 | WO2013164138A2 Synchronous generator control, generator system and vessel energy system |
| 11/07/2013 | US20130294121 System and method providing over current and over power protection for power converter |
| 11/07/2013 | US20130294111 Overload detection in a switched mode power supply |
| 11/07/2013 | US20130293988 System and method for ground fault detection and protection in adjustable speed drives |
| 11/07/2013 | US20130293987 Quench Detection System for Superconducting Magnets |
| 11/06/2013 | EP2660941A1 Synchronous generator control, generator system and vessel energy system |
| 11/06/2013 | EP2660843A1 Circuit breaker for protecting an electrical system |
| 11/06/2013 | EP2659561A1 A method and an apparatus for supervision of current transformer in a differential protection system |
| 11/06/2013 | EP2658750A1 Protective circuit in a screen wiper drive and screen wiper drive |
| 11/06/2013 | CN203278739U Raymond mill main motor operation monitoring device |
| 11/06/2013 | CN203278686U Intelligent power module |
| 11/06/2013 | CN203278682U High power factor constant-current control device with open circuit protection |
| 11/06/2013 | CN203278650U DC-DC circuit adapted to electronic control unit of vehicle under low-voltage working condition |
| 11/06/2013 | CN203278636U Converter parallel operation switching control device |
| 11/06/2013 | CN203278628U IGBT drive circuit for current transformer |
| 11/06/2013 | CN203278320U Combined rack lithium power supply |
| 11/06/2013 | CN203278308U Mini large-power multifunctional environment-protective mobile power supply |
| 11/06/2013 | CN203278303U Lithium iron phosphate emergency power supply with short-circuit protection function |
| 11/06/2013 | CN203278298U Digital display adjustable full-protection charger |
| 11/06/2013 | CN203278210U Busbar residual voltage maintaining device |
| 11/06/2013 | CN203278209U Closing coil protector for breaker |
| 11/06/2013 | CN203278208U Electronic overload relay capable of improving phase loss protection reliability |
| 11/06/2013 | CN203278207U Switching circuit with overheat switch-off function |
| 11/06/2013 | CN203278206U Battery pack discharging protection circuit and device |
| 11/06/2013 | CN203278205U Cascading battery protection circuit and system |
| 11/06/2013 | CN203278204U IGBT module parallel-connection protection circuit applied to high-power inverter |
| 11/06/2013 | CN203278203U Digitization inversion arc welding machine output pole short circuit automatic protection device and digitization inversion arc welding machine |
| 11/06/2013 | CN203278202U A power supply protection apparatus |
| 11/06/2013 | CN203278201U DC power supply protector |
| 11/06/2013 | CN203278200U Open-phase quick-break protector for motor |
| 11/06/2013 | CN203278199U Motor safety protector |
| 11/06/2013 | CN203278198U Motor fault predetermination protective device |
| 11/06/2013 | CN203278197U Protection and anti-interference device of rectifier transformer |
| 11/06/2013 | CN203278196U AC voltage stabilizer security structure |
| 11/06/2013 | CN203278195U Electric power protection and control apparatus |
| 11/06/2013 | CN203278183U 自动过流保护充电器 Automatic over-current protection Chargers |
| 11/06/2013 | CN203277382U Electrostatic protection circuit and battery protection circuit thereof |
| 11/06/2013 | CN203274949U Over-temperature detection and protection circuit of current transformer |
| 11/06/2013 | CN103384071A 电池充电电路 The battery charging circuit |
| 11/06/2013 | CN103384062A Isolation control system of grid power distribution fault detection |
| 11/06/2013 | CN103384061A Microcomputer line protection monitoring device |
| 11/06/2013 | CN103384060A Method for protecting thermal overload of alternating-current motor |
| 11/06/2013 | CN103384059A Vacuum circuit breaker energy storage motor protection circuit |
| 11/06/2013 | CN103384058A Substation area protection based integrated failure protection method for substations |
| 11/06/2013 | CN103384057A Microcomputer comprehensive protecting device of high-voltage explosion-proof switch |
| 11/06/2013 | CN103383425A Satellite-borne general power distribution device for high voltage bus and measuring method thereof |
| 11/06/2013 | CN102368604B Overcurrent protection circuit of electric drive controller for electric vehicle |
| 11/06/2013 | CN102340246B Thick-film magnetic isolation direct current solid-state power controller |
| 11/06/2013 | CN102324884B Stepper motor feedback voltage protection scheme for engineering machinery |
| 11/06/2013 | CN102280867B Two-phase short-circuit fault current control method of circuit |
| 11/06/2013 | CN102255488B Frequency converter stopping device |
| 11/06/2013 | CN102222889B Controller for circuit asymmetrical earth fault current and control method thereof |
| 11/06/2013 | CN102170114B High-voltage direct-current transmission line low-voltage protective method |
| 11/06/2013 | CN102142672B Current differential protection method for built-in winding mutual inductor of three-phase transformer |
| 11/06/2013 | CN102074933B Controlling and activating circuit with low power consumption |
| 11/06/2013 | CN102035446B System and method for detecting high current condition in electric motor |
| 11/06/2013 | CN102005738B Method for identifying healthy phase saturation based on current amplitude ratio and differential current harmonic wave |
| 11/06/2013 | CN101976825B Short circuit protection circuit for audio power amplifier |
| 11/06/2013 | CN101599632B Monitoring and control circuit for adjusting current |
| 11/06/2013 | CN101277012B Fast impedance protection technique immune to dynamic errors of capacitive voltage transformers |