LandOfFree - US Patents - Listing for Electricity: measuring and testing,Measuring, testing, or sensing electricity, per se,Polyphase

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Polyphase

Long range alternating current phasing voltmeter

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Polyphase

Master metering module with voltage selector

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Polyphase

Meter device and method of testing a cut neutral conductor

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Polyphase

Method and apparatus for determining negative sequence current i

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Polyphase

Method and apparatus for digitally measuring electrical energy c

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Polyphase

Method and apparatus for efficiently computing symmetric sequenc

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Polyphase

Method and apparatus for the measurement of alternating-current

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Polyphase

Method for monitoring operational condition of circuit component

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Polyphase

Methods and apparatus for differential current measurement...

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Polyphase

Monitoring and fault protection of high voltage switch yards

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Polyphase

Multiphase voltage monitor

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Polyphase

Multiple function electrical measuring and indicating apparatus

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Polyphase

Phase sequence indicator

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Polyphase

Polyphase electrical signal measuring apparatus

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Polyphase

Polyphase volt-hour indicating circuit

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Polyphase

Power consumption measurement device for a multiphase alternatin

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Polyphase

Power supply negative phase detecting circuit

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Polyphase

Regenerative load bank with a motor drive

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Polyphase

Remote voltage sensor for power system regulation