Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Insulation Coordination

Insulation Coordination

Insulation coordination is the process of matching electric equipment's insulation strength with protective device characteristics to protect the equipment against expected overvoltages. This selection is based on engineering judgment and cost. Equipment can generally withstand short-duration high transient overvoltages, but repeated tests with identical waveforms can yield inconsistent results. As a result, standard impulse voltage waveforms are used for testing, defined by specific times...

Electrical Power

Electrical Power

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...

Electrical Energy

Electrical Energy

Using electric appliances for a longer period of time consumes more electrical energy and results in a higher electric bill. The energy produced by the transfer of electrons from one point to another is known as electrical energy. If power is delivered at a constant rate, the electrical energy can be defined as the product of power used by the device for a period of time. The energy unit on electric bills is the kilowatt-hour, where one kilowatt-hour is equivalent to 3.6 × 106 joules.

Conservation of AC Power

Conservation of AC Power

The principle of power preservation is applicable to both ac and dc circuits. This principle, when applied to AC power, asserts that the complex, real, and reactive powers produced by the source are equal to the total complex, real, and reactive powers absorbed by the loads. When two load impedances are connected in parallel to an ac source V, the complex power provided by the source can be calculated using the relation

Secondary Distribution

Secondary Distribution

Secondary distribution systems provide electrical energy at the utilization voltage levels from distribution transformers to customer meters. Typical secondary voltages in the United States include 120/240 V for residential use, 208Y/120 V for residential and commercial use, and 480Y/277 V for industrial and high-rise commercial use.
In residential areas, 120/240 V single-phase, three-wire service is commonly used for lighting, outlets, and large appliances. Urban areas with high-density loads...

Power System Distribution

Power System Distribution

Power system distribution involves delivering electrical energy from power plants to consumers through a network of transmission and distribution systems. The process begins at power plants, where energy from coal, gas, nuclear, water, and wind is converted into electrical energy. These plants use three-phase generators, typically rated between 50 to 1300 MVA, with terminal voltages ranging from a few kV to 20 kV, depending on the size and age of the units.
The transmission system is designed...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

α7 nicotinic acetylcholine receptor regulates decidual macrophage polarization through TLR4/NF-κB/HIF-1α-mediated glycolytic reprogramming in preeclampsia.

Placenta·2026

Same author

Correction: Integrated 16S rRNA sequencing and metagenomics insights into microbial dysbiosis and distinct virulence factors in inflammatory bowel disease.

Frontiers in microbiology·2026

Same author

Two decades of AI-driven motion capture in rehabilitation: Mapping research networks, thematic hotspots, and future trajectories.

Digital health·2026

Same author

Effects of Non-Pharmacological Interventions on Degree of Thirst and Oral Mucosal Moisture in Critically Ill Patients: A Systematic Review and Meta-Analysis.

Nursing in critical care·2026

Same author

Predictors of a successful external cephalic version: a population-based cohort study.

BMC pregnancy and childbirth·2026

Same author

Amyloid Precursor Protein Abnormalities Destabilize Membrane Ferroportin: A Novel Mechanism Underlying Early Brain Pathologies and Memory Impairment in Alzheimer's Disease.

International journal of molecular sciences·2026

Search research articles

Related Experiment Video

Updated: Jun 12, 2025

Experimental Investigation of the Hierarchical Control in DC Microgrids Using a Real-time Simulator

Experimental Investigation of the Hierarchical Control in DC Microgrids Using a Real-time Simulator

Published on: February 14, 2025

Coupling coordination between electricity and economy: China as an example.

Yuqing Geng¹, Lingyan Chen¹, Qinjun Xiang¹

¹School of Business, Shanghai Dianji University, Shanghai, China.

|September 19, 2024

Summary

Electricity and economy coupling coordination shows mild upward trends across most Chinese regions, indicating improved environmental sustainability. Future policies should address potential widening gaps for balanced development.

Keywords:

China Coupling coordination Economy Electricity

More Related Videos

Author Spotlight: Simulation and Analysis of the Temperature Rise of Ring Main Unit Equipment

Author Spotlight: Simulation and Analysis of the Temperature Rise of Ring Main Unit Equipment

Published on: July 5, 2024

Generation of Dynamical Environmental Conditions using a High-Throughput Microfluidic Device

Generation of Dynamical Environmental Conditions using a High-Throughput Microfluidic Device

Published on: April 17, 2021

Related Experiment Videos

Last Updated: Jun 12, 2025

Experimental Investigation of the Hierarchical Control in DC Microgrids Using a Real-time Simulator

Experimental Investigation of the Hierarchical Control in DC Microgrids Using a Real-time Simulator

Published on: February 14, 2025

Author Spotlight: Simulation and Analysis of the Temperature Rise of Ring Main Unit Equipment

Author Spotlight: Simulation and Analysis of the Temperature Rise of Ring Main Unit Equipment

Published on: July 5, 2024

Generation of Dynamical Environmental Conditions using a High-Throughput Microfluidic Device

Generation of Dynamical Environmental Conditions using a High-Throughput Microfluidic Device

Published on: April 17, 2021

Area of Science:

Environmental Science
Economics
Energy Policy

Background:

The interplay between electricity consumption and economic growth is crucial for sustainable development.
Understanding the coupling coordination between electricity (EL) and economy (EC) is vital for environmental and sustainability goals.
Existing research often lacks a comprehensive evaluation of the temporal-spatial dynamics of EL-EC coupling coordination.

Purpose of the Study:

To theoretically explore the coupling coordination mechanism between electricity and economy.
To develop an evaluation system for measuring coupling coordination levels (CCL).
To analyze the temporal-spatial status of EL-EC CCL in China and propose enhancement strategies.

Main Methods:

Utilized data from 31 Chinese provincial regions (2011-2020).
Employed information entropy weight and the Technique for Order Preference by Similarity to an Ideal Solution (TOPSIS).
Established a theoretical coupling coordination mechanism and an evaluation index system to measure CCL.

Main Results:

Most regions exhibit fluctuating CCLs with mild upward trends, suggesting a benign coordination status.
Spatial distribution of CCLs is uneven, though the gaps are narrowing over time.
Future predictions indicate a potential increase in CCL disparities among regions.

Conclusions:

The study provides a theoretical framework for understanding EL-EC coupling coordination.
The findings offer new insights into CCL evaluation and regional coordination practices.
Differentiated policy implications are recommended to foster balanced and high-quality coordination, including intelligence and wealth transfer.