| 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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| 08/01/2013 | WO2013112361A1 Battery leakage current elimination in ups units |
| 08/01/2013 | WO2013066914A3 Methods for detecting an open current transformer |
| 08/01/2013 | US20130194841 Power supply apparatus and printing apparatus |
| 08/01/2013 | US20130194840 Redundancy Structures for Static Converters |
| 08/01/2013 | US20130194705 Tower of a wind energy installation with current conduction means |
| 08/01/2013 | US20130194704 Protection circuits and methods for electrical machines |
| 08/01/2013 | US20130193753 Telematics master of power |
| 08/01/2013 | DE102013100919A1 Method for recognizing hazardous arc occurring in electrical installation system, involves determining frequency distribution of current flow tripping time interval from coefficient or group of coefficients of time interval |
| 07/31/2013 | EP2621045A2 Photovoltaic panel circuitry with theft detection module |
| 07/31/2013 | EP2621044A2 Overvoltage protection during GCU failure |
| 07/31/2013 | EP2621043A2 Current Limiter |
| 07/31/2013 | EP2619867A1 System and method of automatic detection and prevention of motor runaway |
| 07/31/2013 | EP2509082B1 Fluid insulated high voltage coil |
| 07/31/2013 | CN203104343U Safety protection device for one-for-all graphitization furnace tail gas processing equipment |
| 07/31/2013 | CN203104312U Controllable rectifying device of portable gasoline generator |
| 07/31/2013 | CN203104208U Dynamic monitoring device for cooling system of synchronous motor |
| 07/31/2013 | CN203104114U Marine intelligent circuit breaker |
| 07/31/2013 | CN203104050U APO (Automatic Power Off) anti-backflow charger |
| 07/31/2013 | CN203104046U Full-automatic charger with low static power consumption and energy conservation |
| 07/31/2013 | CN203103934U Measurement and control device for grid faults |
| 07/31/2013 | CN203103933U Anti-electric leakage power-off protection device of substation |
| 07/31/2013 | CN203103932U Configurable busbar differential protection device |
| 07/31/2013 | CN203103931U Protection device for switch-on coil of fixed-type switch cabinet |
| 07/31/2013 | CN203103930U Lithium battery protection circuit |
| 07/31/2013 | CN203103929U Protection circuit for lithium battery |
| 07/31/2013 | CN203103928U Battery protection and spark suppression circuit |
| 07/31/2013 | CN203103927U Anti-explosion protection system of DC shunt capacitor bank used for damping discharge |
| 07/31/2013 | CN203103926U Switching power supply and protective circuit thereof |
| 07/31/2013 | CN203103925U Self-excitation suppression device for mining anti-explosion high-voltage inverter |
| 07/31/2013 | CN203103924U Contactless control protection device for motors of polyester optical film extruders |
| 07/31/2013 | CN203103923U Integrated protector of motor with antitheft function |
| 07/31/2013 | CN203103922U Safety protection circuit of brushless motor |
| 07/31/2013 | CN203103921U Motor protection device |
| 07/31/2013 | CN203103920U Alarming device of loom motor |
| 07/31/2013 | CN203103919U Three-phase large-power submersible pump motor protective system |
| 07/31/2013 | CN203103918U Device for eliminating resonance of voltage mutual inductor |
| 07/31/2013 | CN203103917U Oil well power control and protection device |
| 07/31/2013 | CN203103916U Alternating-current/direct-current general control circuit system |
| 07/31/2013 | CN203095462U Special motor-driven grab bucket for brewing |
| 07/31/2013 | CN103229400A Method and device to protect an ESP power supply from transient over-voltages on the power grid |
| 07/31/2013 | CN103227598A Permanent magnet motor controller with voltage dip protection function |
| 07/31/2013 | CN103227596A Motor device |
| 07/31/2013 | CN103227593A Reversible magnetic starter for underground coal mine electric power driving multiple rotary executing mechanism |
| 07/31/2013 | CN103227491A Data collection and energy balance control device and method for lithium battery pack of electromobile |
| 07/31/2013 | CN103227484A Charge controller with protection function and battery pack |
| 07/31/2013 | CN103227482A Charge controller with protection function and battery pack |
| 07/31/2013 | CN103227460A Intelligent power distribution monitoring system and intelligent power distribution monitoring method |
| 07/31/2013 | CN103227459A Intelligent controller of breaker with load monitoring function |
| 07/31/2013 | CN103227458A Single-phase line earth fault relay protection method based on voltage drop phase characteristic |
| 07/31/2013 | CN103227457A Current protection method for power transmission line during single-phase high-resistance ground fault |
| 07/31/2013 | CN103227456A Single-phase earth fault distance protection method of power transmission line |
| 07/31/2013 | CN103227455A Single-phase line earth fault relay protection method based on fault impedance phase characteristic |
| 07/31/2013 | CN103227454A High-safety method and system for controlling discharge short circuit protection of dynamic lithium battery pack |
| 07/31/2013 | CN103227453A Power source, power failure detection apparatus, and image forming apparatus |
| 07/31/2013 | CN103227452A Computing method of protection fixed value of relay of power plant |
| 07/31/2013 | CN102324882B Current distribution method for hybrid excitation synchronous machine in wide range speed control system |
| 07/31/2013 | CN102263399B Abnormal protection circuit for intelligent power module |
| 07/31/2013 | CN102255363B Charging circuit topology for solar controller under comprehensive protection and control method thereof |
| 07/31/2013 | CN102185510B Safety protective power system |
| 07/31/2013 | CN102136720B Method for detecting short circuit and open circuit faults of IGBT device and controller in online manner |
| 07/31/2013 | CN102130442B Method for determining parameters of faulty forced excitation de-excitation process of power generator |
| 07/31/2013 | CN102097791B Fractal dimension-based ultrahigh voltage DC transmission line boundary element method |
| 07/31/2013 | CN102082423B Relay protection method for phase to phase fault of circuit |
| 07/31/2013 | CN101997300B Moment protection device of crane motor and monitoring control method thereof |
| 07/31/2013 | CN101874333B Remote-operable micro-electromechanical system based over-current protection apparatus |
| 07/31/2013 | CN101765957B Charge/discharge protection circuit, battery pack including charge/discharge protection circuit, and electronic device thereof |
| 07/30/2013 | US8497651 Open phase detection system and method for three-phase motor |
| 07/30/2013 | US8497650 Fan delay control circuit |
| 07/30/2013 | CA2537218C Live conductor stringing and splicing method and apparatus |
| 07/25/2013 | WO2013109681A2 Voltage regulator over-voltage detection system, method and apparatus |
| 07/25/2013 | WO2013107896A1 Data transmission over packet switched network |
| 07/25/2013 | WO2013107089A1 Battery protection circuit and method therefor |
| 07/25/2013 | DE102012200872A1 Device for switching e.g. starter battery in electric scooter, has control device evaluating measured charge or discharge current, where switching element, sensor element and control device are integrated on individual circuit board |
| 07/25/2013 | DE102012001150A1 Power cable for connecting power supply with electric motor in e.g. electric car, has portion formed such that contact is produced between electric conductor and ground conductor by action of high pressure on surface of power cable |
| 07/24/2013 | EP2618502A1 Data transmission over packet switched network |
| 07/24/2013 | EP2618441A1 Method of operating integrated circuit breaker module for solar power system |
| 07/24/2013 | EP2618440A2 Protective circuit for a battery pack |
| 07/24/2013 | EP2618439A2 Protective circuit for a battery pack |
| 07/24/2013 | CN203086399U Direct-current motor controller of electric fork truck lifting hydraulic pump |
| 07/24/2013 | CN203086339U POE power supply device port circuit and POE power supply device |
| 07/24/2013 | CN203086216U Feedback protection board for overflow energy of same platform |
| 07/24/2013 | CN203086215U Solar movable power supply |
| 07/24/2013 | CN203086174U Multi-in-series high-voltage lithium battery pack equalizing device |
| 07/24/2013 | CN203086119U Controllable series compensation lightning arrester protective device |
| 07/24/2013 | CN203086118U 10kV cable network feeder automation device |
| 07/24/2013 | CN203086117U Anti-reverse-connection protection circuit of storage battery EDM |
| 07/24/2013 | CN203086116U Power capacitor over-current protector |
| 07/24/2013 | CN203086115U Power factor correction control circuit for high power factor drive system |
| 07/24/2013 | CN203086114U Anti-interference electricity control device of high-voltage frequency converter |
| 07/24/2013 | CN203086113U Protection circuit allowing setting of protection threshold |
| 07/24/2013 | CN203086112U Comprehensive multi-loop motor protector for coal mine |
| 07/24/2013 | CN203086111U Main transformer protection PT voltage secondary switching circuit |
| 07/24/2013 | CN203086110U Transformer over-temperature protection apparatus, transformer using same and frequency converter using same |
| 07/24/2013 | CN203086109U Protective device of servo driver |
| 07/24/2013 | CN203086108U Novel high-voltage-side protection box for mining explosion-proof mobile substation |
| 07/24/2013 | CN203086107U Novel low-voltage-side protection box for mining explosion-proof mobile substation |
| 07/24/2013 | CN203085989U Time switch integrated power distribution cabinet |
| 07/24/2013 | CN203078325U Protection system for preventing master contactor of vehicle-mounted motor control system from losing effectiveness |
| 07/24/2013 | CN103222145A Continuous uninterruptable AC grounding system for power system protection |
| 07/24/2013 | CN103222144A Integrated photovoltaic source circuit combiner and protection subsystem |