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Related Concept Videos

Energy and Power Signals01:17

Energy and Power Signals

334
In an electrical system with a resistor, voltage and current signals facilitate the measurement of power and energy across the resistor. For a continuous-time signal, the total energy over a time interval is defined as the integral of the square of the signal's magnitude over that interval. Mathematically, this is expressed as:
334
Electrical Power01:07

Electrical Power

3.1K
Electric power is the product of current and voltage, represented in units of joules per second, or watts. For example, cars often have one or more auxiliary power outlets with which you can charge a cell phone or other electronic devices. These outlets may be rated at 20 amps and 12 volts, so that the circuit can deliver a maximum power of 240 watts. Consider a 25 Watt bulb and a 60 Watt bulb. The conversion of electrical energy produces heat and light, while the kinetic energy lost by the...
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Instrument Transformers01:23

Instrument Transformers

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Instrument transformers, comprising voltage transformers (VTs) and current transformers (CTs), play crucial roles in power substations by providing isolated replicas of current or voltage for measurement and protection purposes. Voltage transformers reduce the primary voltage to levels suitable for relay operation and measurement, while current transformers scale down the primary current. The primary winding of a current transformer often consists of a single turn, achieved by threading the...
106
Distribution Reliability and Automation01:25

Distribution Reliability and Automation

129
Distribution reliability in electrical power systems is critical for ensuring an uninterrupted power supply to consumers at minimal cost. According to IEEE Standard Terms, reliability is the probability that a device will function without failure over a specified time period or amount of usage. For electric power distribution, this translates to maintaining continuous power supply and addressing customer concerns over power outages. Several indices, as defined by IEEE Standard 1366-2012, are...
129
Power Factor Correction01:20

Power Factor Correction

201
The power transmission to a factory involves the transfer of apparent power, a combination of active and reactive power. The power factor measures how effectively electrical power is converted into useful work output. The ratio of the real power (KW) that does the work to the apparent power (KVA) supplied to the circuit.
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Power Factor01:11

Power Factor

408
The power factor is defined as the ratio of average (or active) power to apparent power, as illustrated by the relation
408

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A Simple Approach to Perform TEER Measurements Using a Self-Made Volt-Amperemeter with Programmable Output Frequency
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Development a Low-Cost Wireless Smart Meter with Power Quality Measurement for Smart Grid Applications.

Ewerton L de Sousa1, Leonardo A de Aquino Marques1, Israel da S Felix de Lima1

  • 1Department of Informatics and Applied Mathematics (DIMAp), Federal University of Rio Grande do Norte (UFRN), Natal 59078-970, RN, Brazil.

Sensors (Basel, Switzerland)
|August 26, 2023
PubMed
Summary
This summary is machine-generated.

A new low-cost wireless energy meter uses an ESP32 microcontroller for smart grid applications. This software-driven approach simplifies hardware, reducing costs and improving accuracy for efficient energy monitoring.

Keywords:
ESP32electricitylow costpower quality measurementsmart gridsmart meter

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Area of Science:

  • Electrical Engineering
  • Smart Grid Technology
  • Embedded Systems

Background:

  • Increasingly complex electric systems require advanced monitoring solutions.
  • Smart meters are crucial for efficient energy use and managing nonrenewable resources.
  • Traditional energy meters often rely on complex hardware for calculations.

Purpose of the Study:

  • To develop a low-cost wireless energy meter with power quality measurements for smart grids.
  • To enhance software capabilities and simplify hardware design in energy meters.
  • To create a cost-effective and accurate real-time energy monitoring system.

Main Methods:

  • Utilized an ESP32 microcontroller for direct calculation of electrical parameters.
  • Simplified hardware design by performing calculations in software, not complex circuits.
  • Integrated wireless connectivity for remote data transmission.

Main Results:

  • Achieved accurate electrical parameter calculations using the microcontroller's processing power.
  • Reduced production costs and energy consumption compared to traditional meters.
  • Developed a flexible and accurate smart meter with performance comparable to market alternatives.

Conclusions:

  • The developed smart meter offers a cost-effective, energy-efficient, and versatile solution for smart grids.
  • Software-driven calculations on a simplified hardware platform enhance accuracy and flexibility.
  • The meter supports integration with IoT and artificial intelligence for advanced applications.