Energy meter with instrumentation systems and methods
First Claim
1. A system for monitoring near-instantaneous system parameters of electrical energy having at least one phase provided to an energy meter via a service type, comprising:
- storage means for storing reference information reflective of at least one service type;
means for measuring characteristics of said electrical energy; and
means for retrieving said reference information from said storage means and determining said near-instantaneous system parameters responsive to said reference information for the service type and said measured characteristics.
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Accused Products
Abstract
A system for monitoring near-instantaneous system parameters of electrical energy having at least one phase provided to an energy meter via a service type comprises a memory for storing reference information reflective of different service types, a digital signal processor for measuring characteristics of the electrical energy, and a microcontroller for retrieving the reference information from the memory and determining the near-instantaneous system parameters responsive to the reference information for the service type and the measured characteristics. The characteristics are derived from phase voltage and phase current, and are measured for a predetermined amount of time, such as a number of line cycles.
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Citations
68 Claims
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1. A system for monitoring near-instantaneous system parameters of electrical energy having at least one phase provided to an energy meter via a service type, comprising:
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storage means for storing reference information reflective of at least one service type;
means for measuring characteristics of said electrical energy; and
means for retrieving said reference information from said storage means and determining said near-instantaneous system parameters responsive to said reference information for the service type and said measured characteristics. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. An electronic processor-implemented process for monitoring near-instantaneous system parameters of electrical energy provided to an energy meter via a service type, comprising the steps of:
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storing reference information in a memory reflective of at least one service type;
measuring characteristics of said electrical energy provided to the energy meter; and
retrieving said reference information from said memory and determining said near-instantaneous system parameters responsive to said reference information for the service type and said measured characteristics. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46)
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47. A system for monitoring near-instantaneous system parameters of electrical energy having at least one phase provided to an energy meter via a service type, comprising:
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a first memory device that stores reference information reflective of at least one service type;
a digital signal processor (DSP) that measures characteristics of said electrical energy; and
a microcontroller that retrieves said reference information from said first memory device and determines said near-instantaneous system parameters responsive to said reference information for the service type and said measured characteristics. - View Dependent Claims (48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68)
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Specification