Skip to main content

Posts

How Solar PV Installations Within Electrical Distribution Network Affect Overall System's Loss?

The integration of solar photovoltaic (PV) installations within an electrical distribution network can have several impacts on the overall system's losses. Here are some key considerations: 1. Reduction in Transmission and Distribution Losses: Localized Generation: Solar PV systems generate electricity close to the point of consumption (e.g., on rooftops or within local communities). This localized generation reduces the distance electricity needs to travel from central power plants, thereby reducing transmission and distribution (T&D) losses. Reduced Load on Grid: When solar PV systems generate power, they supply part of the local demand, reducing the overall load on the distribution network. This can lead to a reduction in the losses associated with high current flows through distribution lines and transformers. 2. Impact on Voltage Levels: Voltage Regulation: Solar PV systems can contribute to voltage regulation within the distribution network. Properly managed, they can hel...

ChatGPT Answers: What is the typical ratio between non-technical and technical losses in a distribution utility?

What is the typical ratio between non-technical and technical losses in a distribution utility? The typical ratio between non-technical and technical losses in a distribution utility can vary depending on a range of factors such as the location of the utility, the age and condition of the distribution system, and the regulatory environment. In general, however, technical losses tend to be higher than non-technical losses. Technical losses are caused by the physical characteristics of the electric distribution system, such as resistance in transmission and distribution lines and equipment inefficiencies, and can account for up to 8-15% of total energy losses in a distribution utility. Non-technical losses, on the other hand, are caused by theft and fraud, meter inaccuracies, and billing errors and can account for up to 5-7% of total energy losses in a distribution utility. However, it's important to note that the ratio between technical and non-technical losses can vary significantl...

ChatGPT Answers: How billing timing difference affects systems loss data?

How billing timing difference affects systems loss data? Billing timing differences can have an impact on power system loss data, especially if the data is being used for analysis or performance monitoring purposes. This is because billing data is typically collected at different times than system loss data, and these differences can affect the accuracy and reliability of the data. One potential issue is that billing data is often collected on a monthly or quarterly basis, whereas system loss data may be recorded at a higher frequency, such as every 15 minutes or hourly. This means that the billing data may not accurately reflect changes in power consumption or losses that occur on a more granular time scale. Another potential issue is that billing data is usually based on customer meter readings, which are affected by a range of factors, such as meter accuracy, measurement errors, and tampering. This can result in inaccuracies in the billing data, which can in turn affect the accuracy...

ChatGPT Answers: How to Reduce Technical Losses in a Electric Distribution Utility Network?

 ChatGPT Answers: How to Reduce Technical Losses in a Electric Distribution Utility Network? There are several ways to reduce technical losses in an electric distribution utility network: Optimize network design: Properly designing the distribution network, such as using the correct size and type of equipment, can help minimize losses. Improve system efficiency: Upgrading equipment and using advanced technologies, such as smart meters and advanced metering infrastructure, can improve system efficiency and reduce losses. Conduct regular maintenance: Regularly maintaining equipment can help identify and repair any issues that may be causing losses. Implement load management strategies: By managing and reducing peak loads, utilities can reduce losses and improve overall system efficiency. Monitor and measure losses: Regularly monitoring and measuring losses can help identify areas where improvements can be made and track progress over time. Use of distributed energy resources (DERs) s...

ChatGPT Answers: How to start Machine Learning for Electricity Pilferage Detection with Customer Data as variables?

 ChatGPT Answers: How to start Machine Learning for Electricity Pilferage Detection with Customer Data as variables? 1. Starting a machine learning project for electricity pilferage detection with customer data as variables can be a multi-step process. Here's an overview of the steps you might take: 2. Data collection: Collect customer data such as hourly, daily, or monthly electricity consumption levels, as well as customer demographics, location and history of consumption. This data can be obtained from the utility company's billing system or smart meter data. 3. Data preprocessing: Clean and prepare the data for use in a machine learning model. This can include normalizing the data, handling missing values and outliers, and encoding categorical variables. It's important to have a good understanding of the data and its characteristics to be able to make appropriate preprocessing decisions. 4.Feature Engineering: Create new input variables (features) from the raw data that...

ChatGPT Answers: Best Programming Platform to Use for Pilferage Detection Using Machine Learning?

 ChatGPT Answers: Best Programming Platform to Use for Pilferage Detection Using Machine Learning? There are several programming platforms that are commonly used for building machine learning models, including: 1. Python: Python is a widely-used, high-level programming language that has a large and active community of developers. It has a number of powerful libraries and frameworks for machine learning, including TensorFlow, PyTorch, scikit-learn, and pandas. These libraries make it easy to build and train machine learning models, as well as to perform data preprocessing and visualization. 2. R: R is a programming language and software environment for statistical computing and graphics. It has a number of powerful libraries and frameworks for machine learning, including caret, mlr, and randomForest. R also has a large and active community of developers, and is particularly well-suited for statistical modeling and data visualization. 3. Java: Java is a widely-used, high-level progra...

ChatGPT Answers: How to Detect Electricity Pilferage using Machine Learning from Customer Data?

 ChatGPT Answers: How to Detect Electricity Pilferage using Machine Learning from Customer Data? Using machine learning (ML) to detect electricity pilferage from customer data can be an effective approach for utility companies. Here's an overview of how this can work: Data collection: Utility companies can collect data on customer electricity usage patterns, such as hourly, daily, or monthly consumption levels, as well as customer demographics, location and history of consumption. Data preprocessing: The data must be cleaned, transformed and prepared so that it can be used to train the machine learning models. This can include normalizing the data, handling missing values and outliers, and encoding categorical variables. Feature engineering: The process of creating new input variables (features) from the raw data. In the case of electricity pilferage this could be creating features like load factor (ratio between energy consumed and peak energy consumption), Non Intrusive Load mo...

ChatGPT Answers: How to Detect Electricity Pilferage?

ChatGPT Answers: How to Detect Electricity Pilferage? There are several ways to detect electricity pilferage, also known as meter tampering or energy theft. Some common methods include: Visual inspections: Utility companies can physically inspect meters and electrical connections to look for signs of tampering, such as bypassed or damaged meters. Smart meters: These digital meters can detect and report abnormal usage patterns, such as usage during hours when the customer is not at home, or usage that exceeds expected levels. Data analysis: Utility companies can analyze electricity usage data to identify patterns of energy consumption that may indicate tampering, such as usage spikes at night or on weekends. On-site investigation: Utility companies can perform on-site investigations to check for connections to the electricity supply that bypass the meter, check for tampered with or bypassed meters or hidden unauthorized consumption sources. Mobile detection units: Some companies use mob...

Data Science for Distribution Loss Management

DATA SCIENCE FOR DISTRIBUTION LOSS MANAGEMENT Data Science as defined in wikipedia is is an interdisciplinary field that uses scientific methods, processes, algorithms and systems to extract knowledge and insights from noisy, structured and unstructured data, and apply knowledge from data across a broad range of application domains. Data science is related to data mining, machine learning and big data. Data science is a "concept to unify statistics, data analysis, informatics, and their related methods" in order to "understand and analyse actual phenomena" with data. It uses techniques and theories drawn from many fields within the context of mathematics, statistics, computer science, information science, and domain knowledge. However, data science is different from computer science and information science. Turing Award winner Jim Gray imagined data science as a "fourth paradigm" of science (empirical, theoretical, computational, and now data-driven) and a...

ACCR(Aluminum Conductor Composite Reinforced) by 3M vs. ACSR

ACCR versus ACSR Customer demand for power grows, renewable generators wait for interconnection, and intermittent resources demand more flexibility from aging infrastructure. Yet dense populations, environmental concerns, permitting requirements, and land scarcity intensify the schedule, budget and regulatory risks of building or rebuilding lines. To solve these challenges, 3M developed Aluminum Conductor Composite Reinforced (3M™ CCR). 3M ACCR is an advanced transmission conductor designed to replace ACSR or ACSS on existing structures at the same tensions and clearances, giving you up to twice the capacity without the risks of a major construction project. Your line is in service fast, within budget, and with minimal environmental impacts. And the available trapwire options may help improve the line’s efficiency. To know more about 3M's ACCR, please their product catalogue. ACCR 3M Catalogue

Philippine's Energy Regulatory Commission Lowers Systems Loss Cap

ERC Lowers System Loss Cap BY JORDEENE SHEEX LAGARE ON FEBRUARY 23, 2018 Manila Times The Energy Regulatory Commission (ERC) has reduced system loss charges that distribution utilities (DUs) can pass on to their consumers. In a statement on Wednesday, ERC said that under its Resolution 20, Series of 2017, DUs would have a 6.5-percent distribution loss this year. This would be gradually reduced annually until it reaches 5.5 percent by 2021. Electric cooperatives (ECs), which will be grouped into three clusters based on technical considerations, shall impose a 12-percent cap for 2018. They can charge between 8.25 percent and 12 percent until 2022 onward, depending on which cluster they are assigned to. READ MORE

DISTRIBUTION SYSTEM’S LOSS RISK MANAGEMENT

Factors/Risks associated with increase in distribution’s systems loss Increase in utility’s system’s kWh loss can be attributed to many factors. We all know that the components of a utility’s systems loss can be from technical loss or from non-technical loss. As a review, technical loss is the inherent properties of electrical equipment and devices during operation while non-technical loss is the result of electricity pilferage, error in meter reading, etc. 

TYPICAL ELECTRIC PILFERAGE DETECTION METHODS

How to detect possible electricity pilferage? We all know that system’s loss is composed primarily of technical loss and non-technical loss. Technical loss is the inherent property of all electrical devices during operation while non-technical losses are caused by electricity theft and/or metering inaccuracies. Technical loss can be determined through computations and the use of measuring devices. On the other hand, non-technical loss cannot be measured nor be computed; instead one has to have various methods just to detect such loss.

COMPUTATION OF TECHNICAL POWER LOSS FOR FEEDERS USING LOAD FACTOR AND LOAD LOSS FACTOR TECHNICAL PAPER

Author: Sarang Pande and Prof. Dr. J.G. Ghodekar ABSTRACT: Power system losses can be divided into two categories: technical losses and non-technical losses. Technical losses are naturally occurring losses (caused by actions internal to the power system) and consist mainly of power dissipation in electrical system components such as transmission lines, power transformers, measurement systems, etc. Technical losses result from the impedance of the network components such as electric lines/ cables, transformers, metering and protecting equipment etc. Non-technical losses, on the other hand, are caused by theft, metering inaccuracies. In this paper a method for energy loss calculation is presented.

INVERTER TECHNOLOGY FOR ENERGY SAVING GUIDE

How to save energy in using inverter technology? An inverter used either in air conditioning or refrigeration basic benefit is its significant energy saving capabilities. Inverter technology allows the air conditioner/refrigerator automatically vary its power output to specifically maintain room temperature at a desired or comfortable level. Basically, the inverter is used to control the speed of the compressor motor to allow continuously regulated temperature. In contrast, a non-inverter appliance maintains the temperature by repeatedly switching power on and off, which consumes much more electrical energy upon starting.

TYPICAL LOSS FOR AMORPHOUS-METAL CORE DISTRIBUTION TRANSFORMERS

Typical Loss for Amorphous-Metal Core Distribution Transformers. The losses shown in the table are the typical values of a amorphous-metal cored distribution transformers. Core loss and Winding loss (watts) varies relatively as with the increase of the distribution transformer's kVA capacity. Also shown are he respective kilo-watthour loss in annual basis for different transformer capacity in 30% and 40% load factor. Annual kwh are based on peak transformer kW loading equal to kVA size.

TYPICAL LOSS FOR SILICON-CORE DISTRIBUTION TRANSFORMER

Typical Loss for Silicon-Core Distribution Transformers The losses shown in the table are the typical values of silicon-cored distribution transformers. Core loss and Winding loss (watts) varies relatively as with the increase of the distribution transformer's kVA capacity. Also shown are he respective kilo-watthour loss in annual basis for different transformer capacity in 30% and 40% load factor. Annual kwh are based on peak transformer kW loading equal to kVA size.

TYPICAL NO-LOAD LOSS AND LOAD LOSS FOR POWER TRANSFORMERS

Typical No-Load loss and Load loss for Power Transformers according to MVA capacity. No-load loss and Load loss in Power Transformers varies significantly depending on different factors. Here you can find the typical value for the no-load loss and load loss according to power transformers having Load Tap changers and those having none. Different MVA capacity means also having different values for the power transformers' no-load and load loss.

CLASSES OF INCANDESCENT LAMPS

Classes of incandescent lamps as cataloged by the manufacturers.   Large lamps, miniature lamps, and photographic lamps are the three major groups of incandescent lamps as divided and cataloged by the manufactures. As a summary, large lamps are those normally used for interior and exterior general and task lighting. Miniature lamps are generally used in automative, aircraft, and appliance applications. Photographic lamps, as the name implies, are used in photography and projection service.

WOOD ARMS VS. STEEL ARMS FOR TRANSMISSION SYSTEM

Short Comparison between using wooden arms vs. steel arms in power transmission system. Wooden crossarms used in power transmission system are lower in cost than steel arms of the same strength and, aside from the shorter life, the possibility of being shattered by lightning, and the risk of burning due to leakage current at 345kV and above, are satisfactory. On wood pole construction, the advantages of steel arms - resistance to lightning damage and longer life - are not usually sufficient to offset the insulation strength of wood crossarms.