Intelligent electronic device and method thereof

Patent metadata

Field	Value
Publication number	US-2018238942-A1
Application number	US-201815893990-A
Country	US
Kind code	A1
Filing date	Feb 12, 2018
Priority date	Jan 27, 2005
Publication date	Aug 23, 2018
Grant date	—

Abstract

An intelligent electronic device (IED) having a gain control unit adapted to selectively regulate operating ranges of output signals of a sensing circuit of the device is described. In one embodiment, the IED is a digital electric power and energy meter, which operating ranges for supply voltages and supply currents of electrical services may be adjusted to match pre-determined ranges for input signals of a data acquisition system or a data processing module of the meter.

First claim

What is claimed is:

1 . An intelligent electronic device (IED) having enhanced power quality and communications capabilities, the IED comprising:
(a) at least one input channel for receiving AC voltages and currents, (b) at least one sensor for sensing the at least one input voltage and current channel, (c) at least one analog to digital converter for outputting digitized signals, and (d) a processing system including: a volatile memory and a non-volatile memory for storing captured waveform samples from at least one of said at least one analog to digital converter, a means to store waveform samples from said volatile memory to said non-volatile memory, and a means to trigger to store said waveform samples based on an adaptive algorithm.

2 . The IED of claim 1 , wherein the IED can transmit data using Ethernet protocol

3 . The IED of claim 2 , wherein the IED can transmit data using at least one Modbus TCP protocol.

4 . The IED of claim 1 , wherein the adaptive algorithm includes and RMS calculation.

5 . The IED of claim 5 wherein the adaptive algorithm adapts its voltage based on an average voltage calculation.

6 . An intelligent electronic device (IED) having enhanced power quality and communications capabilities, the IED comprising:
(a) at least one input channel for receiving AC voltages and currents, (b) at least one sensor for sensing the at least one input voltage and current channel, (c) at least one analog to digital converter for outputting digitized signals, and (d) a processing system including: a volatile memory and a non-volatile memory for storing captured waveform samples from at least one of said at least one analog to digital converter, a means to store waveform samples from said volatile memory to said non-volatile memory, and a means to trigger to store said waveform samples based on an envelope type waveform trigger algorithm.

7 . The IED of claim 6 , wherein the IED can transmit data using Ethernet protocol

8 . The IED of claim 7 , wherein the IED can transmit data using at least one Modbus TCP protocol.

9 . The IED of claim 6 wherein the envelope type waveform trigger algorithm includes
Vt 1− Vth 1< Vt 2< Vt 1+ Vth 2

10 . The IED of claim 6 wherein the envelope type waveform trigger algorithm includes a Fourier transform.

Assignees

• Electro Industries/Gauge Tech

Inventors

• Banhegyesi Tibor
• Kagan Erran
• Banker Patricia E

Classifications

• G01D4/004

  Remote reading of utility meters to a fixed location · CPC title

• G01R22/10

  using digital techniques · CPC title

• G01R21/133 Primary

  by using digital technique · CPC title

• Y02B90/242

  Cross-Sectional Technologies · mapped topic

• Y04S20/322

  Cross-Sectional Technologies · mapped topic