Apparatus and method for determining contact dynamics

Apparatus for controlling a magnetically actuated power...

Apparatus for rapidly and accurately testing encapsulated relays

Assembly for rapid and accurate testing of encapsulated devices

Circuit and method for checking the contacting of a switch...

Circuit for testing two switch or relay contacts simultaneously

Composite safety switch

Connector contact contamination probe

Contact fault detector

Contact impedance test circuit and method

Contact welding detecting device for relay

Control of relay opening events

Current differential protection relays

Current signature sensor

Data input module for inputting data by means of electrical cont

Device for and method of detecting residual current with...

Device for monitoring short circuits and overloads in electronic

Digital protective relay monitoring system

Electric power system relay and on-line method of testing same

Electromagnet drop time detection method