| 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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| 10/23/2013 | CN103368136A Method and device for processing power grid power loss |
| 10/23/2013 | CN103358922A Power monitoring device for batteries of automobile |
| 10/23/2013 | CN102545357B Fully automatic stop charger |
| 10/23/2013 | CN102510083B Integration protection method capable of reducing wind power field low-voltage crossing capacity requirement |
| 10/23/2013 | CN102324728B Method for judging and compensating current transformer saturation |
| 10/23/2013 | CN102097865B Method for restoring power supply in power system |
| 10/23/2013 | CN101771281B Heating integrated module driven by battery |
| 10/23/2013 | CN101771266B Over-current protection circuit applied to high-power motor and on-vehicle lamp |
| 10/22/2013 | US8565971 High voltage battery cooling control technique for a vehicle |
| 10/22/2013 | US8564984 Soft switching DC/DC converters and methods |
| 10/22/2013 | US8564914 Fault clearing without a DC backup power source |
| 10/22/2013 | US8564913 Driving device for semiconductor element |
| 10/22/2013 | US8564237 Seal leakage and seal oil contamination detection in generator |
| 10/22/2013 | US8564236 Power tool |
| 10/22/2013 | CA2732405C Portable electrical equipment racking tool |
| 10/17/2013 | WO2013153889A1 Battery pack provided with charge and discharge control switch circuit |
| 10/17/2013 | WO2013152985A1 Dc-dc converter device |
| 10/17/2013 | US20130272039 Procedures for the Operation of an Electrical Circuit |
| 10/17/2013 | US20130271879 Fault Protection System For A Power System Of Dynamically Positioned Vessel |
| 10/17/2013 | US20130271878 Automatic fault isolation methodology |
| 10/17/2013 | US20130271877 Overcurrent protection and fault isolation |
| 10/17/2013 | DE102012103356A1 Stromrichter, sowie Verfahren zum Betreiben eines Stromrichters Power converter and method of operating a power converter |
| 10/17/2013 | DE102012007451A1 Transducer e.g. LLC resonant converter for lighting unit, of LED converter used in lighting system, has control device that is arranged in primary-side circuit, to detect error state at output unit of secondary-side circuit |
| 10/17/2013 | CA2812562A1 Fault protection system for a power system of dynamically positioned vessel |
| 10/17/2013 | CA2812561A1 Fault protection system for a power system of dynamically positioned vessel |
| 10/16/2013 | EP2650996A1 Overcurrent protection and fault isolation |
| 10/16/2013 | EP2649694A1 Motor protection relay for optimizing the monitoring and protection of an electric motor |
| 10/16/2013 | EP2649692A1 Protective device for load circuit |
| 10/16/2013 | CN203243268U Large-power DC motor drive control circuit device |
| 10/16/2013 | CN203243267U Major loop circuit of two-phase direct current brushless temperature control fan |
| 10/16/2013 | CN203243266U Drive circuit of two-phase half-wave DC brushless temperature-control fan |
| 10/16/2013 | CN203243259U Motor starter having protection function |
| 10/16/2013 | CN203243223U DC power step-down transformer circuit |
| 10/16/2013 | CN203243030U Complete set of power transmission and transformation device |
| 10/16/2013 | CN203243029U 500kV GIL relay protection circuit |
| 10/16/2013 | CN203243028U Disconnection protection circuit for lithium power battery pack |
| 10/16/2013 | CN203243027U Reception and protection system for wireless charging of mobile phone batteries |
| 10/16/2013 | CN203243026U Electric vehicle and rechargeable battery assembly thereof |
| 10/16/2013 | CN203243025U Ship motor insulation state detecting circuit |
| 10/16/2013 | CN103354440A Dust collector controller with harmonic wave suppression |
| 10/16/2013 | CN103354355A Method and device for networked protection of microgrid |
| 10/16/2013 | CN103354354A Impedance protection method and apparatus suitable for micro-electrical network |
| 10/16/2013 | CN103354353A Intelligent power-distribution-network whole-line quick-reacting main protection and determination system and method |
| 10/16/2013 | CN103354352A Distributed intelligence based power distribution network safety protection method |
| 10/16/2013 | CN103354351A Voltage protection method for single lead-acid battery |
| 10/16/2013 | CN103354350A Voltage protection method for single lithium battery |
| 10/16/2013 | CN103354349A Novel lithium-battery low voltage start charging method and charging protection circuit |
| 10/16/2013 | CN103354348A Open-phase protection apparatus for three-phase motor |
| 10/16/2013 | CN103354347A Motor-dual-protection automatic control device |
| 10/16/2013 | CN103354346A Motor dual protection belt alarm automation control device |
| 10/16/2013 | CN102368667B Offline type AC-DC (Alternating Current-Direct Current) control circuit and converting circuit comprising same |
| 10/16/2013 | CN102142674B Method for selectively clearing single-phase ground fault of ship shore power system |
| 10/16/2013 | CN102097792B Ground fault protection method of distribution network |
| 10/16/2013 | CN102097785B Method for authenticating sympathetic inrush current in traction substation transformer |
| 10/16/2013 | CN102082412B Gear motor |
| 10/16/2013 | CN102064537B Method for judging and processing single-phase earth faults by using electronic mutual inductor |
| 10/16/2013 | CN101931256B Charger of uninterrupted power supply and uninterrupted power supply using same |
| 10/15/2013 | US8560201 Gen-Set control system having proactive load relief |
| 10/15/2013 | US8559201 Grid-connected inverter |
| 10/15/2013 | US8559150 Electric circuit breaker |
| 10/15/2013 | US8559146 Line current differential protection upon loss of an external time reference |
| 10/15/2013 | US8558520 Bus driver for avoiding an overvoltage |
| 10/15/2013 | US8558492 Apparatus for driving motor of electric vehicle |
| 10/15/2013 | CA2792338C Apparatus, system, and method for creating one or more slow-speed communications channels utilizing a real-time communication channel |
| 10/10/2013 | WO2013152172A2 Systems, methods and apparatus for protecting power distribution feeder systems |
| 10/10/2013 | US20130265686 Device and method for controlling power according to a load of a hybrid excavator |
| 10/10/2013 | US20130265682 Electrical Protection Circuitry For A Docking Station Base Of A Hand Held Meter And Method Thereof |
| 10/10/2013 | US20130265680 Systems, methods and apparatus for protecting power distribution feeder systems |
| 10/10/2013 | US20130265675 Digital protective relay |
| 10/10/2013 | DE102013205983A1 Elektrisches Leistungszufuhrsteuerungsgerät für ein Fahrzeug Electric power supply control apparatus for a vehicle |
| 10/10/2013 | DE102012102878A1 Stromrichter mit Zwischenkreis, sowie Verfahren zum Betreiben eines solchen Stromrichters Converter with DC-link, and methods for operating such a power converter |
| 10/09/2013 | EP2648301A1 Method of electrical protection of a synchronous machine and electric power generation plant for powering an electric network |
| 10/09/2013 | EP2647052A1 Photovoltaic installation |
| 10/09/2013 | CN203233613U Protective device applicable to motor protector |
| 10/09/2013 | CN203233391U Strong drive circuit with short-circuit protection function |
| 10/09/2013 | CN203233360U Novel cold-hot blend mixer |
| 10/09/2013 | CN203233349U A reversible magnetic starter of an electrically-driven multi-rotary actuating mechanism |
| 10/09/2013 | CN203233348U Reversible magnetic starter for underground electric multi-rotary actuating mechanism in coal mine |
| 10/09/2013 | CN203233316U Converter for entertainment equipment |
| 10/09/2013 | CN203233299U IGBT drive circuit for braking of urban rail vehicle traction converter |
| 10/09/2013 | CN203233222U Backup power supply charging-discharging control circuit of remote communication base station |
| 10/09/2013 | CN203233157U Digital output control circuit for relay protection |
| 10/09/2013 | CN203233156U Relay protection device based on dual core processor |
| 10/09/2013 | CN203233155U Power generation system having generator outlet breakers |
| 10/09/2013 | CN203233154U Overcharge protection circuit for nickel-metal hydride battery |
| 10/09/2013 | CN203233153U Battery protection board with step-up function and electric quantity display |
| 10/09/2013 | CN203233152U Lithium battery protection circuit with temperature protection and package chip thereof |
| 10/09/2013 | CN203233151U A charging protection circuit |
| 10/09/2013 | CN203233150U Overvoltage protection circuit in LED drive power supply and LED drive power supply |
| 10/09/2013 | CN203233149U Low-voltage frequency converter with overcurrent protection function |
| 10/09/2013 | CN203233148U Comprehensive detection and power utilization protection device of power frequency and variable-frequency power supply |
| 10/09/2013 | CN203233147U Low voltage frequency converter with overheating protection function |
| 10/09/2013 | CN203233146U An intelligent motor protector suitable for a direct starting mode |
| 10/09/2013 | CN203233145U An intelligent motor protector suitable for a self-coupling voltage reduction starting mode |
| 10/09/2013 | CN203233144U Intelligent motor protector for two-speed motor running mode |
| 10/09/2013 | CN203233143U Intelligent motor protector suitable for reversible start-up mode |
| 10/09/2013 | CN203233142U Motor temperature control protection system |
| 10/09/2013 | CN203233141U Independent cooling fan interlocking protection device of variable-frequency motor |
| 10/09/2013 | CN203233140U Demagnetization protection circuit of compressor |
| 10/09/2013 | CN203233139U Transformer neutral-wire break protection device |