216729 ⎘
Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors of a three-phase system using summation current transformers
CIRCUIT BREAKER AND METHOD
#2CIRCUIT INTERRUPTING DEVICE FOR PROVIDING GROUND FAULT AND OPEN NEUTRAL PROTECTION IN TEMPORARY POWER APPLICATIONS
#3Circuit interrupting device for providing ground fault and open neutral protection in temporary power applications
#4DEVICES FOR MONITORING AND PROTECTING POWER CIRCUITS
#5Modular power supply
#6Circuit interrupting device for providing ground fault and open neutral protection in temporary power applications
#7Circuit interrupting device for providing ground fault and open neutral protection in temporary power applications
#8Circuit interrupting device for providing ground fault and open neutral protection in temporary power applications
#9Energy based transient earth-fault protection for high impedance grounded networks
#10Power Interruption Method and Device Based on Periodic Measurement of Instantaneous Power Level
#11Electric circuit device with a residual current monitoring module for detecting a closed switch contact as well as a protection ground conductor interruption in a one or multiphase electric supply line
#12INVERTER FOR A PHOTOVOLTAIC PLANT
#13Method for detecting earth-fault conditions in a power conversion apparatus
#14GFCI with capacitive power supply circuit
#15Quick-action leakage detection protection circuit having regular self-checking function
#16Trip control circuit for circuit breaker
#17Arc fault and ground fault interrupter using dual ADC
#18Protection device for electrical network
#19Differential protection in electrical power networks
#20Electrical power supply system having internal fault protection
#21Method for operating a ground fault interrupter as well as ground fault interrupter for a frequency converter
#22Earth leakage detector with suffered current-blocking function
#23METHOD AND SYSTEM FOR TRANSIENT AND INTERMITTENT EARTH FAULT DETECTION AND DIRECTION DETERMINATION IN A THREE-PHASE MEDIAN VOLTAGE ELECTRIC POWER DISTRIBUTION SYSTEM
#24System and method for polyphase ground-fault circuit-interrupters
#25Apparatus, method, and system for monitoring leakage current and detecting fault conditions in electrical systems
#26Multi-pole arc-fault circuit interrupter
#27Earth leakage detection method
#28Precision ground fault detection for aircraft human body protection
#29Earth leakage detection circuit
#30Ground fault protection circuit for multi-source electrical distribution system
#31Current fault detector and circuit interrupter and packaging thereof
#32Aircraft applicable circuit imbalance detection and circuit interrupter and packaging thereof
#33Aircraft applicable circuit imbalance detection and circuit interrupter and packaging thereof
#34Aircraft applicable current imbalance detection and circuit interrupter and packaging thereof
#35Aircraft applicable circuit imbalance detection and circuit interrupter and packaging thereof
#36Aircraft applicable circuit imbalance detection and circuit interrupter and packaging thereof
#37Current fault detector and circuit interrupter and packaging thereof
#38Ground-fault circuit-interrupter system for three-phase electrical power systems
#39Electrical contractor current sensing system and method
#40Aircraft applicable current imbalance detection and circuit interrupter and packaging thereof
#41High current ground fault circuit interrupter with open neutral detection
#42Current fault detector and circuit interrupter and packaging thereof
#43Aircraft applicable current imbalance detection and circuit interrupter and packaging thereof
#44Ground and line fault interrupt controller/adapter
#45Aircraft applicable circuit imbalance detection and circuit interrupter and packaging thereof