216676 ⎘
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; Details with warning or supervision in addition to disconnection, e.g. for indicating that protective apparatus has functioned Checking overvoltage diverters
POE & Cable Tester with BT Standard Test
#2Protection circuit applied to electronic device and associated protection method
#3Surge protection device for the protection of multiple DC or AC power lines
#4Protection circuit applied to electronic device and associated protection method
#5Overvoltage protection device with monitoring and communication functions
#6Transient voltage suppressor having built-in-test capability for solid state power controllers
#7Power conversion device with overvoltage suppression
#8Monitoring device and surge arrester system
#9Surge reduction filter
#10Surge reduction filter
#11Circuit assembly for the state monitoring and logging of overvoltage protection devices or overvoltage protection systems
#12Inter-area oscillation detection
#13Surge protection devices that fail as an open circuit
#14Device with overvoltage protection and method for its testing
#15Apparatus for monitoring discharge processes in a conductor of a medium-voltage or high-voltage system
#16Overvoltage protector circuit and a detector circuit for supervising such a protector circuit
#17Surge protector life cycle monitor system and method
#18Surge detection circuit
#19Surge detector/counter
#20Device for monitoring the leakage current of a surge arrester
#21Close tolerance surge suppression circuit