| Patents for G01R 21 - Arrangements for measuring electric power or power factor (6,609) |
|---|
| 08/13/1996 | US5546318 Method of generating electrical energy metering quantities in a multi-channel load profile recorder |
| 08/13/1996 | US5545981 Device for measurement of electrical energy comprising a multiplexer |
| 08/08/1996 | WO1996024070A1 Method of sizing transformers in an electrical utility service |
| 08/06/1996 | US5544089 Programmable electrical energy meter using multiplexed analog-to-digital converters |
| 07/30/1996 | US5541589 Power meter data acquisition and control system |
| 07/25/1996 | WO1996022539A1 Electricity measurement apparatus and method |
| 07/23/1996 | US5539655 Apparatus for detecting out of phase of power systems and method for detecting the same |
| 07/23/1996 | US5539304 Calibration of power meters |
| 07/17/1996 | EP0721690A1 Distribution automation system using medium and low voltage distribution power lines as two-way data transmission media |
| 07/17/1996 | CN1126852A Monitoring device secured to power distribution system conductors |
| 07/16/1996 | US5537333 Method of determining power measurements in an electrical energy meter |
| 07/16/1996 | US5537029 For electronically displaying metered electrical energy |
| 07/16/1996 | US5537028 Electricity meter and method for measuring apparent power |
| 07/11/1996 | WO1996021264A2 Energy management and building automation system |
| 07/03/1996 | EP0720022A1 Thermal detection elements |
| 06/27/1996 | WO1996019765A1 System power consumption tracking and reporting |
| 06/26/1996 | EP0718948A2 Circuit interrupter providing protection and waveform capture for harmonic analysis |
| 06/26/1996 | EP0718635A2 An electrical metering system having an electrical meter and an external current sensor |
| 06/20/1996 | WO1996018982A1 Power meter data acquisition and control system |
| 06/19/1996 | EP0717286A2 Commodity consumption meters |
| 06/18/1996 | US5528507 System for utility demand monitoring and control using a distribution network |
| 06/11/1996 | US5525898 Programmable multi-channel load profile recorder and method of recording electrical energy metering quantities therein |
| 06/05/1996 | EP0715171A2 Improvements in or relating to electricity meters |
| 05/30/1996 | DE19542989A1 System for detecting open and short circuits in semiconductor wiring |
| 05/22/1996 | EP0713279A1 Apparatus providing protection and metering in an ac electrical system utilizing a multi-function sampling technique |
| 05/21/1996 | US5519622 Real time, economic-impact display system for consumers of commoditized electric power |
| 05/14/1996 | US5517106 Method and apparatus for digitally measuring electrical power |
| 05/08/1996 | EP0710844A2 Method for measurement of alternating current, measurement detector for measurement of alternating current, and use of SAID detector in a KWH meter |
| 05/07/1996 | US5514958 Electrical energy meters having factory set calibration circuits therein and methods of calibrating same |
| 05/02/1996 | WO1996012969A1 Numerical comparator |
| 05/02/1996 | CA2203166A1 Numerical comparator |
| 05/01/1996 | EP0709686A2 Apparatus for measuring an RF parameter |
| 04/24/1996 | EP0708339A2 Data collection and processing for digital AC power system monitor/analyzer |
| 04/17/1996 | EP0707217A2 Battery-fed utility meter with selectable measuring characteristic |
| 04/17/1996 | EP0707216A2 Method and clip-on current probe for determining the compensation capacity of an electrical network |
| 04/16/1996 | US5508617 Electric power measuring apparatus and method |
| 04/11/1996 | WO1996010856A1 Graphical display for an energy management device |
| 04/10/1996 | EP0705493A1 Electric supply control |
| 04/10/1996 | CN1120168A Multifunction digital watt-hour meter for single-chip processor |
| 04/03/1996 | EP0704710A1 Method for compensating the piezoresistive offset voltage in doubly connected Hall effect devices based on silicon |
| 03/12/1996 | US5498956 Distributed current and voltage sampling function for an electric power monitoring unit |
| 03/06/1996 | EP0699914A1 Electricity meter |
| 03/05/1996 | US5497332 Method and apparatus for metering and monitoring AC generators |
| 03/05/1996 | US5497077 Power calculating device |
| 02/27/1996 | US5495193 Voltage to frequency converter |
| 02/20/1996 | US5493212 Electricity meter with variable gain sigma-delta converter |
| 02/08/1996 | DE4426509A1 Element for indicating electrical consumption data |
| 02/07/1996 | CN1116309A Current measurement circuit comprising a mutally couples transformer and an integration circuit |
| 01/30/1996 | US5488565 Tamper detection methods and apparatus for load management terminals |
| 01/30/1996 | US5488290 Energizing devices for kilowatt hour meter displays |
| 01/17/1996 | CN1115031A Device for measurement of electrical energy comprising a multiplexer |
| 01/16/1996 | US5485393 Method and apparatus for measuring electrical parameters using a differentiating current sensor and a digital integrator |
| 01/10/1996 | CN1030669C Multifunctional triphase digital power indicating wattmeter |
| 01/09/1996 | US5483153 Transient event detector for use in nonintrusive load monitoring systems |
| 01/04/1996 | WO1996000399A1 Metering systems |
| 01/03/1996 | EP0505526B1 Maximum monitor, especially for rate calculation |
| 01/02/1996 | US5481468 Method and apparatus for storing an increasing number of sequential real-time samples in a fixed amount of memory |
| 12/27/1995 | EP0689057A2 Monitoring device secured to power distribution system conductors |
| 12/27/1995 | EP0688434A1 Power meter |
| 12/27/1995 | EP0688433A1 Improved power meter |
| 12/27/1995 | CN1114052A Method for solving the contradiction between watt-hour operation precision and speed in digit electron watt-hour meter |
| 12/26/1995 | CA2043652C Automonous pulse reading and recording system |
| 12/12/1995 | US5475303 Electronic watthour meter |
| 12/07/1995 | WO1995033210A1 Electrical energy meter |
| 12/07/1995 | WO1995033184A1 Measurement system and method |
| 12/07/1995 | CA2189653A1 Measurement system and method |
| 12/06/1995 | EP0685744A1 Device for measurement of electrical energy comprising a multiplexer |
| 12/06/1995 | EP0685743A1 Current measurement circuit comprising a mutually coupled transformer and an integration circuit |
| 12/02/1995 | CA2150521A1 Device for measurement of electrical energy comprising a multiplexer |
| 11/30/1995 | DE4416439A1 Electrical power consumption meter for controlling power network |
| 11/29/1995 | CN1112681A Method and apparatus for executing a command in a peurality of electrical metering devices |
| 11/28/1995 | US5471137 System checking and troubleshooting package for an electronic metering device |
| 11/21/1995 | US5469365 Power monitor unit |
| 11/21/1995 | US5469049 System checking and troubleshooting package for an electronic metering device |
| 11/14/1995 | US5467286 Metering unit with downloadable firmware |
| 11/14/1995 | US5467012 Power monitoring |
| 11/08/1995 | EP0681235A2 Device for summing up products of two equal or different signals |
| 11/07/1995 | US5465044 Analog multiplying-averaging circuit and wattmeter circuit using the circuit |
| 10/31/1995 | US5463310 Instrument for measuring the frequency and power of a microwave signal |
| 10/17/1995 | US5459464 Frequency modulated integrator circuit |
| 10/11/1995 | EP0676054A1 Process and device for finding the real output of an electric drive. |
| 10/10/1995 | US5457621 Switching power supply having voltage blocking clamp |
| 10/04/1995 | EP0675368A1 Measuring instrument input circuit |
| 09/28/1995 | WO1995026065A1 Electricity monitoring system |
| 09/28/1995 | CA2186030A1 Electricity monitoring system |
| 09/19/1995 | US5451947 Modulated dither signal |
| 09/13/1995 | EP0671009A1 Programmable electrical energy meter and methods therefor |
| 09/12/1995 | US5450007 Method and apparatus for power measuring |
| 09/06/1995 | EP0670502A1 Electrical quantity measurement device |
| 09/06/1995 | EP0670499A1 Voltage to frequency converter |
| 09/05/1995 | US5448747 For metering an analog voltage |
| 09/05/1995 | US5448229 Method and apparatus for communicating with a meter register |
| 08/30/1995 | CN1029647C Method and apparatus for monitoring subsynchronous oscillation in power system |
| 08/29/1995 | US5446374 Potentiometer multiplier circuit, and an electrical energy meter including such a circuit |
| 08/29/1995 | US5446373 Method of measuring the consumption of electrical energy |
| 08/16/1995 | EP0627083A4 Method and apparatus for electronic meter testing. |
| 08/15/1995 | US5442279 Apparatus and method for detecting power of a three phase alternating current system |
| 08/09/1995 | EP0666480A1 Power-frequency converter (and variations thereof) |
| 08/09/1995 | EP0666479A2 Measuring device and active power measuring method |
| 08/02/1995 | CN2204425Y D.C digital power meter |