| 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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| 06/19/2013 | CN203014361U Traction transformer substation framework protection system of rail transportation line |
| 06/19/2013 | CN203014360U On-line circuit fault monitoring and protecting device |
| 06/19/2013 | CN203014359U Busbar residual voltage maintaining device |
| 06/19/2013 | CN203014358U High capacity contactor start protection circuit |
| 06/19/2013 | CN203014357U GOOSE message/switch value conversion device for relay protection digitized transformation |
| 06/19/2013 | CN203014356U Power tube short-circuit protection circuit |
| 06/19/2013 | CN203014355U Lithium battery pack protection board with alarm function |
| 06/19/2013 | CN203014354U Circuit for controlling auxiliary device of large units |
| 06/19/2013 | CN203014353U Motor protection switch structure |
| 06/19/2013 | CN203014352U Control circuit changing frequent tripping of thermorelay |
| 06/19/2013 | CN203014351U Motor protection and monitor apparatus |
| 06/19/2013 | CN203014350U Apparatus used for vibration anti-interference controlling |
| 06/19/2013 | CN203014349U Hot saw motor control circuit |
| 06/19/2013 | CN203014348U A motor protector |
| 06/19/2013 | CN203014347U An overspeed protection unit of a generator set |
| 06/19/2013 | CN203014346U 10 kV transformer protection and monitor apparatus |
| 06/19/2013 | CN203014345U Power distribution transformer low-voltage protection cabinet |
| 06/19/2013 | CN103166557A Small wind power generation power controller |
| 06/19/2013 | CN103166538A Reversible magnetic starter of general power-driven multi-turn execution mechanism |
| 06/19/2013 | CN103166482A Communication power source with multiple protection functions |
| 06/19/2013 | CN103166471A Switching power supply, control method of switching power supply and control chip |
| 06/19/2013 | CN103166290A Control and protection circuit for single-lithium battery electric tool and detection and control method for control and protection circuit |
| 06/19/2013 | CN103166274A Battery management system and corresponding electronic system |
| 06/19/2013 | CN103166261A Control method and device for achieving equalizing charge of battery pack and battery box |
| 06/19/2013 | CN103166207A Line single-phase earth fault relay protection method based on along-the-line voltage drop characteristic |
| 06/19/2013 | CN103166206A Single-phase earth fault distance protection method based on distance measurement type electric transmission line |
| 06/19/2013 | CN103166205A Transmission line transient state high frequency component processing differential motion pilot protection method |
| 06/19/2013 | CN103166204A Line inter-phase stoppage impedance distance protection method based on addition impedance actual measurement revision |
| 06/19/2013 | CN103166203A Distribution network topology guard method with direction |
| 06/19/2013 | CN103166202A System and method for reducing heating value in mobile terminal charging |
| 06/19/2013 | CN103166201A Overcurrent overvoltage soft-starting buffering system |
| 06/19/2013 | CN103166200A Battery protection circuit and explosion-proof lighting device |
| 06/19/2013 | CN103166199A Switching power supply and voltage protection method thereof |
| 06/19/2013 | CN103166198A System and method for power supply transformation system protection at least based on feedback signal |
| 06/19/2013 | CN103166197A Input over-current protection circuit of communication power supply module |
| 06/19/2013 | CN103166196A Electric switching circuit with voltage protection |
| 06/19/2013 | CN103166195A System and method for frequency changer speed reduction protection |
| 06/19/2013 | CN103166194A Input overvoltage and under-voltage protection circuit of communication power supply module |
| 06/19/2013 | CN103166193A Overheat protection circuit of communication power supply module |
| 06/19/2013 | CN103166192A Short-circuit power failure protection circuit for mine intrinsic safety power source |
| 06/19/2013 | CN103166191A Short-circuit protection circuit for mine intrinsic safety power source |
| 06/19/2013 | CN103166190A Alternating current variable-pitch motor protection device and method |
| 06/19/2013 | CN103166189A Delayed alarm protection method for alternating current (AC) variable-pitch motor |
| 06/19/2013 | CN103166188A Open-phase safeguard of three-phase sources |
| 06/19/2013 | CN103166187A Open phase protection circuit for motor |
| 06/19/2013 | CN103166186A Electromotor operation phase-deficient protection circuit |
| 06/19/2013 | CN103166185A Pulse width modulation controller |
| 06/19/2013 | CN103166184A Delayed alarm method for direct current variable pitch motor |
| 06/19/2013 | CN103166183A Protection circuit |
| 06/19/2013 | CN103166182A Protector of three-phase asynchronous motor |
| 06/19/2013 | CN103166181A Control method of protecting blender motor |
| 06/19/2013 | CN103166180A Method and device for judging overload shedding for power system transformer |
| 06/19/2013 | CN103166177A Leakage blocking protective circuit |
| 06/19/2013 | CN103163416A Method and device for detecting branch circuit single phase earth faults |
| 06/19/2013 | CN102445652B Detecting method for monitoring circuit |
| 06/19/2013 | CN102288857B Fault arc identification and detection method and detection protection device |
| 06/19/2013 | CN102158100B Triphase variable-frequency power supply with high power and operating method thereof |
| 06/19/2013 | CN102074932B Method and system for monitoring motor load |
| 06/19/2013 | CN102023277B Homonymic phase inter-line fault phase selection method of four-parallel line on same tower based on twelve-sequence component |
| 06/19/2013 | CN101752834B UUT power supply management method and ID identification circuit thereof |
| 06/18/2013 | US8467205 Methods, systems, and software for controlling a power converter during low (zero)-voltage ride-through conditions |
| 06/18/2013 | US8467166 Circuit breaker with high-speed mechanically interlocked impedance grounding switch |
| 06/18/2013 | US8467155 Contact protection circuit and high voltage relay comprising the same |
| 06/18/2013 | US8466649 Heat removal from motor components |
| 06/15/2013 | CA2798271A1 System and method for power distribution |
| 06/13/2013 | WO2013084531A1 Magnetizing inrush current suppression device |
| 06/13/2013 | WO2013083723A1 Method and device for detecting electric arc in a photovoltaic installation |
| 06/13/2013 | US20130148391 Neutral point clamped (npc) power converter fault protection system |
| 06/13/2013 | US20130148245 Line isolators for isolating multiple faults in emergency systems |
| 06/13/2013 | DE102012216806A1 Pulsweitenmodulations-Steuerung Pulse width modulation control |
| 06/13/2013 | DE102012213231A1 Stromsensor-Rekonfigurations-Verfahren eines Fahrzeugs mit einem Motor Current sensor reconfiguration method of a vehicle having an engine |
| 06/13/2013 | DE102011121004A1 Battery e.g. traction battery, for electric car, has cell housing arranged for respective individual cell, and isolated flexible electric line connected with one of set of electrical connections of individual cell |
| 06/13/2013 | DE102011088359A1 Method for monitoring electrical energy storage device e.g. traction battery, involves transmitting request for down-regulating the current in network, to control unit based on detected predetermined state of storage device |
| 06/12/2013 | EP2602893A1 Power system protection |
| 06/12/2013 | CN202998532U Electromagnetic induction heating control circuit based on digital signal processing |
| 06/12/2013 | CN202997998U Motor driving circuit used for remote control toy |
| 06/12/2013 | CN202997991U Storage battery electric locomotive switch magnetic resistance motor speed regulation system for coal mine |
| 06/12/2013 | CN202997964U Double-end flyback type switch power supply with input overcurrent and power-down protection |
| 06/12/2013 | CN202997958U Switch power supply with high voltage input automatic turn-off protection function |
| 06/12/2013 | CN202997560U Fully automatic quick reversal connection protection charger |
| 06/12/2013 | CN202997559U Input anti reversal connection protection circuit of solar energy controller |
| 06/12/2013 | CN202997546U Incoming line protector |
| 06/12/2013 | CN202997535U Electrified railway auto-transformer station main wiring |
| 06/12/2013 | CN202997534U Intelligent device and system for removing line faults of overhead contact line system |
| 06/12/2013 | CN202997533U Relay protection device for 10KV outgoing cable of converting station |
| 06/12/2013 | CN202997532U Digital type override trip prevention protection measurement and control device |
| 06/12/2013 | CN202997531U Traditional intelligent integrated portable over-current protection device |
| 06/12/2013 | CN202997530U A mine-used intrinsically safe lithium battery power supply system |
| 06/12/2013 | CN202997529U Overload protection energy-saving circuit |
| 06/12/2013 | CN202997528U Simple alternating-current rectification protection power supply device with under-voltage protection function |
| 06/12/2013 | CN202997527U Fault detection protection circuit for three-phase power supply and inverter air conditioner |
| 06/12/2013 | CN202997526U Protective circuit for UPS (uninterrupted power supply) power tube |
| 06/12/2013 | CN202997525U Switching power supply interference preventer |
| 06/12/2013 | CN202997524U Intelligent universal type three phase protector |
| 06/12/2013 | CN202997523U Energy-saving three-phase AC motor overload open-phase safeguard |
| 06/12/2013 | CN202997522U Fault blockade circuit |
| 06/12/2013 | CN202997521U Motor drive controller having current-limiting protection function |
| 06/12/2013 | CN202997520U Current sampling and over-current protection circuit for electric vehicle controller |
| 06/12/2013 | CN202997519U Verifying attachment of motor protector |
| 06/12/2013 | CN202997518U Electric door protection device |