IN2013CH04890AIN4890CH2013AIN2013CH04890AIN 2013CH04890 AIN2013CH04890 AIN 2013CH04890AIN 4890CH2013 AIN4890CH2013 AIN 4890CH2013AIN 2013CH04890 AIN2013CH04890 AIN 2013CH04890A
Authority
IN
India
Prior art keywords
measuring means
electricity meter
current measuring
voltage measuring
measurement uncertainty
Prior art date
Application number
Inventor
Naik Tharanath
J Emmatty Dennis
Original Assignee
Schneider Electric India Private Ltd
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Filing date
Publication date
Application filed by Schneider Electric India Private LtdfiledCriticalSchneider Electric India Private Ltd
Priority to IN4890CH2013priorityCriticalpatent/IN2013CH04890A/en
Publication of IN2013CH04890ApublicationCriticalpatent/IN2013CH04890A/en
Measuring Instrument Details And Bridges, And Automatic Balancing Devices
(AREA)
Measurement Of Current Or Voltage
(AREA)
Abstract
The electricity meter capable of detecting a measurement uncertainty without disturbing a normal operation is provided. The electricity meter includes one or more phase lines (R, Y, B) and a neutral line (N), one or more current measuring means (CT1-CT4) which are positioned in a current measuring path, a voltage measuring means (ADC) which is positioned in a voltage measuring path, one or more controlling switches (SW1-SW3 & T1-T4) which are positioned prior to each of the current measuring means and the voltage measuring means, and a microcontroller which is configured (i) to selectively control at least one of the plurality of controlling switches at a predefined interval and (ii) to detect the measurement uncertainty in the electricity meter. Figure 1