As IOT develops drastically these years, the application of cloud computing in many fields has become possible. In this paper, we take low-voltage current transformers in power systems as the research object and propose a TCN-BI-GRU power measurement method that incorporates the signal characteristics based on the transformer input and output. Firstly, the basic signal enhancement extraction of input and output is completed by using EMD and correlation coefficients. Secondly, multi-dimensional feature extraction is completed to improve the data performance according to the established TCN network. Finally, the power prediction is completed by using BI-GRU, and the results show that the RMSE of this framework is 5.69 significantly lower than other methods. In the laboratory test, the device after being subjected to strong disturbance, its correlation coefficient feature has a large impact, leading to a large deviation in the prediction, which provides a new idea for future intelligent prediction.

The National Training Center (NTC), a prominent source of on-location and virtual classroom training and training materials in the various low-voltage disciplines, is offering a quick flash sale of its renown Low Voltage Library.  

A 61-year-old dump truck owner-operator was electrocuted when his vehicle came in contact with an overhead power line.

Take ampere measurements on conductors up to 500 kV quickly and easily with the HVA High-Voltage Digital Ammeter.

In its Sixth Year Over 100,000 Users Have Benefited from This Essential Voltage Drop Calculator

GRE Voltage Drop Calculator Celebrates Third Year Of Maximizing Energy Efficiency for LED Lighting Systems

The essential tool for efficient power management celebrates a significant user milestone, reflecting its growing impact in the industry

In HVAC, we rarely need to have a deep understanding of electrical design. But there are a few cases where a little understanding can go a long way in identifying issues before they cause trouble, and that is the intent of this short article.

The business employs around 600 people and generated revenues of approximately $63 million in 2021.

Technicians need to understand the basic electrical fundamentals and how they relate to each other in order to better troubleshoot electrical failures.

Saving one compressor will cover the cost of a voltage monitor and then some.

Cabling in power substations is very important due to the fact that they are the longest parts of a system and therefore act as efficient antennas that pickup and or radiate noise. In HV substations, there are different kinds of conductors... Read more

The post The problem of induced voltages in control cables in high voltage substations appeared first on EEP - Electrical Engineering Portal.

To be clear at the beginning of this article, determining the cross-section of conductors and cables is, for sure, not the most exciting part of electrical design. There are much more challenging and more exciting parts than staring at endless... Read more

The post The art of determining the right cross-section of low voltage conductors appeared first on EEP - Electrical Engineering Portal.

To be clear from the very beginning of this article, there is no standard model for wiring low voltage switchboards and panelboards. However, for the wide variety of installations and ranges of power ratings, there are local work practices, regulations... Read more

The post Dos, don’ts and precautions in wiring cables and conductors inside low-voltage switchboard appeared first on EEP - Electrical Engineering Portal.

For a power system to operate efficiently and securely, the importance of the correct and coordinated provision and control of reactive power cannot be overemphasised. It is necessary to examine reactive power requirements under both steady-state and dynamic conditions. Although... Read more

The post Parameters of generators, transformers, lines and cables for vars, voltage and loads control appeared first on EEP - Electrical Engineering Portal.

A voltage drop is the total amount of voltage loss that happens through all or part of an electric circuit due to impedance and other factors. The more the voltage drops in the system, the more negative impacts will likely... Read more

The post Voltage Drop Analysis and Calculation Essentials (MS Excel Sheet Bonus) appeared first on EEP - Electrical Engineering Portal.

This technical article discusses twelve different methods for laying high voltage cables. Out of the ten, four are deemed conventional and eight are deemed progressive. Many various utilities and companies all across the globe are making use of them, though... Read more

The post Twelve high voltage cable construction techniques used worldwide appeared first on EEP - Electrical Engineering Portal.

To be honest, a circuit breaker is fairly simple device. However, the process of specifying circuit protection is often complicated and unclear, leading many engineers to either include insufficient or excessive protection in their equipment designs. Insufficiently protected circuits expose... Read more

The post Twelve ultimate mistakes when selecting circuit protection for low-voltage equipment appeared first on EEP - Electrical Engineering Portal.

High voltage power substations are complex networks of power and control connections, represented by design elements like- Single Line Diagrams, layout and block diagrams, schematics, logic diagrams, schedules, and so many more. Wiring diagrams and schematics, in a sense, are... Read more

The post Tricks in designing and analyzing schematics and diagrams of high voltage substations appeared first on EEP - Electrical Engineering Portal.

Electrical systems normally use current and voltage transformers for protection and measurement purposes. They represent the power system’s eyes and ears, and it’s essential to fully understand how they work, how to make the correct specification and most importantly, the... Read more

The post What steps should be taken to avoid choosing the incorrect current and voltage transformers? appeared first on EEP - Electrical Engineering Portal.

Researches so far shows that, by 2020, around 20% of the total energy production worldwide will be generated from renewable energy. But the major problem with the standalone system is that the sources are not continuous. This intermittent nature of... Read more

The post Low voltage ride through in grid connected hybrid renewable energy systems appeared first on EEP - Electrical Engineering Portal.

Capacitive voltage transformers (CVTs) are used on higher voltage levels, starting from 66 kV and upwards. The type of the CVT is always a single-pole one, thus the connection is between phase and earth. The higher the voltage level is,... Read more

The post Capacitive Voltage Transformers (CVT) For HV Measurements appeared first on EEP - Electrical Engineering Portal.

First, let’s remind ourselves of the basics in a few sentences. That is something you must know. A current transformer (CT) is designed to produce a secondary current which is accurately proportional to the primary current. It consists of a... Read more

The post IEC and NEMA/IEEE ratings of current transformers (CTs) in medium voltage applications appeared first on EEP - Electrical Engineering Portal.

Voltage dips and transients are usually blamed on the supplier, but this is often unfair. There are many potential on-site causes; for example, starting of heavy loads may cause voltage dips and switching of inductive loads will generate transients. Let’s... Read more

The post Should We Blame Supplier For Voltage Dips and Transients? appeared first on EEP - Electrical Engineering Portal.

Prevention is better than cure, we all know this, and this is true not only for people, but also for the health of your electrical and electronic components and equipment. Smart and cost-effective strategies demand an investment in surge protection.... Read more

The post How to handle overvoltages before any damage is done? Surge protection in a nutshell. appeared first on EEP - Electrical Engineering Portal.

This technical article explains various aspects of the application of medium voltage switchgear and highlights the considerations for the selection of suitable circuit breakers for different applications. Medium voltage switchgear, commonly known as MV switchgear, play a significant role in... Read more

The post Medium voltage switchgear: Important design considerations and applications appeared first on EEP - Electrical Engineering Portal.

The AC induction motor is a key component of the modern world economy. These motors are used in industrial facilities all over the world to power the equipment that boosts productivity and efficiency. However, during motor start-up, many industrial activities... Read more

The post Six different ways to start a medium-voltage motor you should know about appeared first on EEP - Electrical Engineering Portal.

LG RESU16H Prime + Solis S6-EH3P10K-H-AU (AS4777-2 2020)

Part of the latest generation 3 series in the LG RESU line-up. The RESU16H Prime is the largest lithium-ion residential battery storage in the world, supplying a total energy capacity of 16 kWh. The latest RESU16H Prime provides an all-new continuous power rating of 7 kW and a peak rating of 11 kW. This increased peak power enables homeowners to backup high-surge power appliance loads like air-conditioning units and pumps.

The 16 kWh battery features industry-leading continuous power, storage capacity, and DC round-trip efficiency (>90%). Stackable to 32 kWh of energy storage capacity, the RESU16H Prime can fully cover an average daily electricity use of a home.

SPECS
Electrical Characteristics
Nominal Energy 16.45 kWh
Usable Energy1) 16.0 kWh @77°F (25°C)
Voltage Range Charge 420 ~ 450 VDC
Discharge 350 ~ 410VDC
Max. Charge/Discharge Current 20A@350V
Max. Charge/Discharge Power 7 kW
Peak Power (only discharging)2) 11 kW for 10 sec.
Peak Current (only discharging) 32.8A for 10 sec.
Battery Chemistry Lithium Ion
Communication Interface RS485/CAN
DC Protection Circuit Breaker, Fuse, DCDC converter
(Short Circuit Current : 1.616kA)
Connection Method Spring Type Connector
User interface LEDs for Normal and Fault operation
Protection Features Over Voltage / Over Current /
short circuit / Reverse Polarity
Scalability
(Total Energy, Max. Charge/Discharge Power)
Max. 2 in parallel
(32.0 kWh @77°F (25°C), 14kW)

Only 14 units left in total

Happy to quote on PV installation also.
Price includes installation in Standard metro in WA, NSW, VIC, QLD
travel or freight is an additional charge

Kenny Solar
1300882990
www.kennysolar.com.au
info@kennysolar.com.au

Electrical safety and lightning protection of medium voltage input and up to ±400 VDC output power system in ICT data centres and telecommunication centres

Resistibility of telecommunication equipment installed in customer premises to overvoltages and overcurrents

Resistibility of telecommunication equipment installed in the access and trunk networks to overvoltages and overcurrents

Resistibility of telecommunication equipment installed in a telecommunication centre to overvoltages and overcurrents

i want to read from text file two values  on two ports , i wrote  that  code, and i have that error that shown in the image below . and also the data in text file is shown as screenshot

module read_file (a,b);

electrical a,b;
integer in_file_0,data_value, valid, count0,int_value;

analog begin
@(initial_step) begin
in_file_0 = $fopen("/home/hh1667/ee610/my_library/read_file/data2.txt","r");

valid = $fscanf (in_file_0, "%b,%b" ,int_value,count0);
end

V(a) <+ int_value;
V(b) <+ count0;

end

endmodule

The orexigenic gut peptide ghrelin is an endogenous ligand for the growth hormone secretagogue receptor type 1a (GHSR1a). Systemic ghrelin administration has previously been shown to increase gastric motility and emptying. While these effects are known to be mediated by the vagus nerve, the cellular mechanism underlying these effects remains unclear. Therefore, the purpose of the present study was to investigate the signaling mechanism by which GHSR1a inhibits voltage-gated Ca²⁺ channels in isolated rat gastric vagal afferent neurons using whole-cell patch-clamp electrophysiology. The ghrelin pharmacological profile indicated that Ca²⁺ currents were inhibited with a log (Ic₅₀) = –2.10 ± 0.44 and a maximal inhibition of 42.8 ± 5.0%. Exposure to the GHSR1a receptor antagonist (D-Lys3)-GHRP-6 reduced ghrelin-mediated Ca²⁺ channel inhibition (29.4 ± 16.7% vs. 1.9 ± 2.5%, n = 6, P = 0.0064). Interestingly, we observed that activation of GHSR1a inhibited Ca²⁺ currents through both voltage-dependent and voltage-independent pathways. We also treated the gastric neurons with either pertussis toxin (PTX) or YM-254890 to examine whether the Ca²⁺ current inhibition was mediated by the Gα_i/o or Gα_q/11 family of subunits. Treatment with both PTX (Ca²⁺ current inhibition = 15.7 ± 10.6%, n = 8, P = 0.0327) and YM-254890 (15.2 ± 11.9%, n = 8, P = 0.0269) blocked ghrelin’s effects on Ca²⁺ currents, as compared with control neurons (34.3 ± 18.9%, n = 8). These results indicate GHSR1a can couple to both Gα_i/o and Gα_q/11 in gastric vagal afferent neurons. Overall, our findings suggest GHSR1a-mediated inhibition of Ca²⁺ currents occurs through two distinct pathways, offering necessary insights into the cellular mechanisms underlying ghrelin’s regulation of gastric vagal afferents.

This Chennai-based startup has introduced the country’s first high-voltage electric two-wheeler, a machine that merges electric car technology with motorcycle performance

In India where power supply is often erratic and fluctuates, this silent guardian protects our appliances, much like the father of a family

IEEE / Institute of Electrical and Electronics Engineers Incorporated