| Patents for H02H 3 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection (33,031) |
|---|
| 03/23/2011 | CN201774227U Electric leakage detection protection circuit |
| 03/23/2011 | CN201774226U Novel electricity-saving leakage detection protecting circuit |
| 03/23/2011 | CN201774225U Electric leakage detecting protection circuit |
| 03/23/2011 | CN201774224U Novel electric-leakage detection protection circuit |
| 03/23/2011 | CN201774223U Electricity leakage detection protecting circuit |
| 03/23/2011 | CN201774222U Electric connecting wire protecting device with self-checking function |
| 03/23/2011 | CN201774221U Undervoltage delayer |
| 03/23/2011 | CN201774220U Frequency relay |
| 03/23/2011 | CN201774219U Protective circuit of single-phase energy meter |
| 03/23/2011 | CN201774098U Novel earth leakage protection socket |
| 03/23/2011 | CN201772351U High-power single-electrode fluorescent street lamp |
| 03/23/2011 | CN201771502U Coal mining machine water and electricity locking device |
| 03/23/2011 | CN1988283B Power socket based on electricity measuring to control switch |
| 03/23/2011 | CN101989753A Connection control system for storage battery of communication power supply |
| 03/23/2011 | CN101989722A Power socket with leakage current measurement protective device |
| 03/23/2011 | CN101989721A Power socket with leakage current measurement protector |
| 03/23/2011 | CN101593961B Direct-current power supply short-circuit protection circuit based on non-contact current sampling |
| 03/23/2011 | CN101350511B Twofold startup method protected by microcomputer protecting equipment |
| 03/22/2011 | US7911759 Methods and arrangement for protecting against electrostatic discharge |
| 03/22/2011 | US7911758 Low power solenoid control system and method |
| 03/22/2011 | US7911754 Detection of current leakage through opto-switches |
| 03/22/2011 | US7911753 Method and apparatus for detecting and recovering from external electrical disturbances |
| 03/22/2011 | US7911751 Electrostatic discharge device with metal option ensuring a pin capacitance |
| 03/22/2011 | US7911749 Electrostatic discharge protection device for pad and method and structure thereof |
| 03/22/2011 | US7911748 Diffusion capacitor for actively triggered ESD clamp |
| 03/22/2011 | US7911746 GFCI with self-test and remote annunciation capabilities |
| 03/17/2011 | WO2011029464A1 Fault detection in energy supply networks having an unearthed or resonant-earthed star point |
| 03/17/2011 | US20110063769 Equivalent alpha plane fault determination for a multi-terminal power apparatus |
| 03/17/2011 | US20110063768 Electrical safety devices and systems for use with electrical wiring, and methods for using same |
| 03/17/2011 | US20110063767 Charging current compensation for line current differential protection |
| 03/17/2011 | US20110063766 Line current differential protection upon loss of an external time reference |
| 03/16/2011 | EP2296244A1 Method and device for connecting at least one string of a photovoltaic assembly with an inverter |
| 03/16/2011 | EP2296243A1 Protection device for load circuit |
| 03/16/2011 | CN201766509U Lightning-protection power supply device |
| 03/16/2011 | CN201766344U Alarm system |
| 03/16/2011 | CN201766343U Integrated three-phase high-tension current transformer with voltage signal acquiring function |
| 03/16/2011 | CN201766342U Passive intelligent demarcation load switch controller |
| 03/16/2011 | CN201766341U Overvoltage protection air switch |
| 03/16/2011 | CN201766043U Dynamic-detection static-detection zero-cutting fireproofing intelligent circuit breaker |
| 03/16/2011 | CN101986492A Short-circuit protection circuit and short-circuit protection method |
| 03/16/2011 | CN101986491A Electrical equipment and relay protector |
| 03/16/2011 | CN101534008B Method for reducing influence of voltage sag on electric equipment |
| 03/15/2011 | US7907378 Automatic detection of a CMOS device in latch-up and cycling of power thereto |
| 03/15/2011 | US7907377 Arrangement and method for an integrated protection for a power system |
| 03/15/2011 | US7907376 Load control device and method |
| 03/15/2011 | US7907374 Electrostatic discharge prevention circuits |
| 03/15/2011 | US7907373 Electrostatic discharge circuit |
| 03/15/2011 | US7907372 Systems and methods for reducing leakage current hazards using an active shunt filter |
| 03/15/2011 | US7907371 Circuit interrupting device with reset lockout and reverse wiring protection and method of manufacture |
| 03/15/2011 | US7906870 System and method for anti-islanding, such as anti-islanding for a grid-connected photovoltaic inverter |
| 03/10/2011 | WO2011027010A1 Method for protecting human beings against electric discharges |
| 03/10/2011 | WO2010121211A3 System and method for over-voltage protection of a photovoltaic system with distributed maximum power point tracking |
| 03/10/2011 | US20110058299 Transient voltage protection circuit and system incorporating the same |
| 03/10/2011 | US20110058296 Method of Detecting a Fault Condition of a Load Control Device |
| 03/10/2011 | US20110058295 Protective device |
| 03/10/2011 | US20110058291 Geometric configuration or alignment of protective material in a gap structure for electrical devices |
| 03/10/2011 | US20110057594 Methods and systems for determining and displaying a time to overload of machine tools |
| 03/09/2011 | EP2293424A2 AC power switching module |
| 03/09/2011 | EP2291894A1 Circuit testing closer apparatus and method with dynamic test thresholds |
| 03/09/2011 | EP2291893A1 Fault current circuit breaker |
| 03/09/2011 | CN201758278U Bus bar controller |
| 03/09/2011 | CN201758272U Electricity leakage locking protection circuit of vacuum electromagnetic starter |
| 03/09/2011 | CN201758271U Standby protection circuit without optical coupler |
| 03/08/2011 | US7903382 MEMS micro-switch array based on current limiting enabled circuit interrupting apparatus |
| 03/08/2011 | US7903381 Negative sequence differential element |
| 03/08/2011 | US7903380 ESD protection circuit for inside a power pad or input/output pad |
| 03/03/2011 | WO2011023533A1 Checking a configuration modification for an ied |
| 03/03/2011 | WO2011023305A1 A method of fault phase selection and fault type determination |
| 03/03/2011 | WO2011023137A1 Open phase detection system and method for three-phase motor |
| 03/03/2011 | US20110054713 Global trip unit |
| 03/03/2011 | US20110051305 Series Current Limiter Device |
| 03/03/2011 | US20110051302 Integrated power device and method |
| 03/03/2011 | US20110050003 Electric shock preventing device and information processing terminal including electric shock preventing device |
| 03/02/2011 | EP2290900A1 Checking a configuration modification for an IED |
| 03/02/2011 | EP2290775A1 A method of fault phase selection and fault type determination |
| 03/02/2011 | EP2290774A1 Device and method to protect an electric power distribution network against current faults |
| 03/02/2011 | EP2290773A2 Differential current transformer and residual current operated protective device |
| 03/02/2011 | EP2289144A1 Method for production of an oscillating signal and electrical protection - or measurement instrument having an oscillation identification device |
| 03/02/2011 | EP2289137A1 Method and arrangement for generating an error signal |
| 03/02/2011 | CN201754529U High-voltage switch controller for zero-sequence current transformer grounding protection |
| 03/02/2011 | CN201754521U Power transformation and supply system |
| 03/02/2011 | CN201754499U Electricity restriction device |
| 03/02/2011 | CN201754498U Leakage protector for frequency control |
| 03/02/2011 | CN201754497U Outdoor high-voltage demarcation circuit breaker |
| 03/02/2011 | CN201754496U Combination switch with overcurrent protection |
| 03/02/2011 | CN201754495U 多功能真空接触器 Multifunction vacuum contactors |
| 03/02/2011 | CN201754494U Portable monitoring equipment |
| 03/02/2011 | CN201754493U Automatic DH (dead halt) alarm sending and clearing device for satellite digital receiver |
| 03/02/2011 | CN201753461U Electrical control system for rock loading machine |
| 03/02/2011 | CN101983465A Device, system and method for automatic self-test for a ground fault interrupter |
| 03/02/2011 | CN101983464A Short-circuit limiting apparatus in a low-voltage installation |
| 03/02/2011 | CN101982950A Managing resources for IP networking |
| 03/02/2011 | CN101582580B Input/output over-voltage protection circuit |
| 03/01/2011 | US7899975 Method for storing individual data items of a low-voltage switch |
| 03/01/2011 | US7898784 Protection circuit with variable current level limits |
| 03/01/2011 | US7898783 Methods and apparatus to reduce substrate voltage bounces and spike voltages in switching amplifiers |
| 03/01/2011 | US7898782 Inverter |
| 03/01/2011 | US7898781 Arc fault detection apparatus employing a comparator with a continuously variable threshold |
| 03/01/2011 | US7898780 Electronic differential switch |
| 03/01/2011 | US7898779 Protective device having a thin construction |