Electrical Load Calculations & Design from Udemy

This unique way of explanation and preparation of the course has been thought to suit all engineering and technical levels, starting from students of engineering universities and various technical institutes and even specialized engineers with high experience in the field of electrical power and distribution systems, especially the electrical contracting field, distribution networks and consulting offices.

This course was explained in a practical way based on the simple theoretical speech and attention to the practical explanation and reality pictures so that we can link the academic/theoretical study with what is actually present in the practical reality for the actual application after passing this course.

This course is closely related to electrical distribution systems and various contracting works. In this course, I offer the following:

* The meaning of Electrical Loads Calculations.

* The difference between dynamic or motors loads and static loads.

* The importance of the derating factors (D.F) in electrical loads calculations, and if we ignore these factors in our calculations, what will happen?

* In detail and step by step, I will explain, how to make the voltage drop (V.D) calculations for any cable.

* I will talk about, the short circuit (S.C) calculations for electrical power cables.

* I will explain how to choose the correct cross-section area (C.S.A) for the neutral cable and the earthing cable conductor.

* The difference between the Miniature C.B (MCB), Molded Case C.B (MCCB), and the Air C.B (ACB).

* In detail and step by step, how to make the correct and accurate calculations for any static load.

* I will give you an example of static load calculations and I will explain in detail and step by step, how to make the correct and accurate calculations for this load.

* I will explain how to know and calculate the starting current for any motor.

* I will explain in detail and step by step, how to make the correct and accurate calculations for any dynamic or motor loads.

* I will explain how to make correct calculations of the main cable and the main circuit breaker (C.B) for a group of individual motors or different loads.

* I will give you an example of dynamic or motor load calculations and I will explain in detail and step by step, how to make the correct and accurate calculations for these motors.

* I will give you a very important example of the office building calculations which consists of: the basement floor, ground floor, first floor, second floor, and roof floor with different loads of static loads and dynamic or motor loads like water pumps, chillers, and elevators.

* I will explain in detail and step by step:

- How to calculate the rated current of each circuit breaker (C.B) in ampere (A).

- How to calculate the cross-section area (C.S.A) of each cable in square-mm.

- How to calculate the rated current of the main circuit breaker (C.B) in ampere (A).

- How to calculate the cross-section area (C.S.A) of the main cable of each floor in square-mm.

* Finally, the last lecture is for the distribution transformer and the main distribution board calculations.

What's inside

Learning objectives

Step by step, how to make the electrical loads calculations for all different loads
How to make the electrical loads calculations through different technical data: kw, kva, and hp
The difference between derating factor (d.f) and demand factor (d.f) in electrical load calculations
The importance of using derating factors (d.f) in electrical load calculations
How to make the correct and accurate calculations for 1-ph and 3-ph loads
The difference between miniature c.b (mcb), molded case c.b (mccb), and air c.b (acb)
How to make the correct and accurate thermal current capacity calculations

How to calculate the correct c.s.a for neutral and earthing cables
How to make the voltage drop calculations for mv and lv cables
How to make the short circuit current calculations for different cables
How to make the correct and accurate office building load calculations
How to make the correct electrical calculations to choose the suitable distribution transformer for any building or project
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Step by step, how to make the electrical loads calculations for all different loads
How to make the electrical loads calculations through different technical data: kw, kva, and hp
The difference between derating factor (d.f) and demand factor (d.f) in electrical load calculations
The importance of using derating factors (d.f) in electrical load calculations
How to make the correct and accurate calculations for 1-ph and 3-ph loads
The difference between miniature c.b (mcb), molded case c.b (mccb), and air c.b (acb)
How to make the correct and accurate thermal current capacity calculations
How to calculate the correct c.s.a for neutral and earthing cables
How to make the voltage drop calculations for mv and lv cables
How to make the short circuit current calculations for different cables
How to make the correct and accurate office building load calculations
How to make the correct electrical calculations to choose the suitable distribution transformer for any building or project
Show more
Show less

Syllabus

Loads Calculations

Course Preview and Contents

Electrical Loads Calculations – Introduction

Cables Derating Factors (D.F)

Career center

Learners who complete Electrical Load Calculations & Design will develop knowledge and skills that may be useful to these careers:

Electrical Design Engineer

An Electrical Design Engineer is central to creating safe, efficient, and reliable electrical systems for buildings, infrastructure, and industrial facilities. This role involves translating client needs into detailed electrical drawings and specifications. This course can help build a foundation by providing a deep dive into Electrical Load Calculations and Design, which are the bedrock of any electrical system. You will learn step-by-step how to calculate static and dynamic loads, determine appropriate cable cross-section areas, and size main circuit breakers and distribution transformers. The practical focus, including comprehensive office building calculations, makes this course particularly relevant for mastering the precise calculations required for success as an Electrical Design Engineer.

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Consulting Electrical Engineer

A Consulting Electrical Engineer provides expert advice and design services for diverse projects, from commercial buildings to industrial plants. This role, often requiring a professional license and sometimes an advanced degree, demands meticulous attention to detail and a comprehensive understanding of electrical system design. This course is an excellent fit for those pursuing this career, offering a practical, step-by-step approach to Electrical Load Calculations and Design. It covers essential topics such as calculating various loads, understanding derating factors, making voltage drop and short circuit calculations, and correctly sizing cables and circuit breakers, all crucial skills for advising clients and ensuring regulatory compliance across various contracting works.

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Building Services Engineer

A Building Services Engineer specifically designs, installs, and maintains the electrical infrastructure within buildings, ensuring safety, comfort, and energy efficiency. The detailed training on Electrical Load Calculations and Design provided in this course directly aligns with the core responsibilities of this role. The course's focus on office building calculations—including static and dynamic loads for water pumps, chillers, and elevators, along with main cable and circuit breaker sizing—is particularly relevant. Learners gain practical skills in determining correct cross-section areas for cables and selecting suitable distribution transformers, which are indispensable for a Building Services Engineer.

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Power Systems Engineer

A Power Systems Engineer focuses on the generation, transmission, and distribution of electrical power. While this field is broad, understanding the principles of Electrical Load Calculations and Design is absolutely critical, especially at the distribution end. This course helps build a foundation in essential calculations for medium voltage distribution networks, including voltage drop, short circuit analysis, and the sizing of key components like cables and circuit breakers. For an aspiring Power Systems Engineer, this course offers a practical curriculum that links theoretical knowledge with real-world applications, providing valuable insight into system behavior and capacity planning. This role typically requires an advanced degree.

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Electrical Project Engineer

An Electrical Project Engineer manages the technical aspects of electrical projects from conception to completion, ensuring designs are implemented correctly and efficiently. Understanding the underlying design principles and calculations is vital for effective project oversight and problem-solving. This course offers a hands-on approach to Electrical Load Calculations and Design, which can help an Electrical Project Engineer review designs, verify specifications, and troubleshoot issues related to cable sizing, circuit protection, and load distribution. The practical examples, such as comprehensive office building calculations, provide a solid context for managing complex electrical installations and ensuring project success.

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Electrical Field Engineer

An Electrical Field Engineer applies engineering principles directly on-site, supervising installations, commissioning systems, and troubleshooting electrical issues. A strong grasp of design fundamentals is crucial for interpreting plans and resolving real-world challenges. This course offers practical, step-by-step guidance on Electrical Load Calculations and Design, which can significantly benefit an Electrical Field Engineer. It covers critical topics such as cable sizing, voltage drop, short circuit calculations, and the proper selection of protective devices. The emphasis on linking academic theory with practical reality and actual application prepares learners to make informed decisions in the field and ensure operational efficiency.

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Electrical Planner

An Electrical Planner is involved in the initial stages of project development, determining the scope, requirements, and resource allocation for electrical installations. Accurate planning relies heavily on foresight and foundational technical understanding. This course offers comprehensive guidance on Electrical Load Calculations and Design that can significantly benefit an Electrical Planner. By mastering how to calculate various loads, size cables, and determine requirements for main circuit breakers and distribution boards, learners develop the ability to define project specifications precisely. The practical examples, including full office building system calculations, provide a robust framework for developing realistic and effective project plans.

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Electrical Estimator

An Electrical Estimator is responsible for calculating the material, labor, and equipment costs for electrical projects. Accurate estimation hinges on a precise understanding of the electrical system's design requirements. This course provides comprehensive training in Electrical Load Calculations and Design, which is highly relevant for an Electrical Estimator. By learning to make correct and accurate calculations for various static and dynamic loads, determining cable cross-section areas, and sizing circuit breakers, learners can develop the foundational skills to quantify project components precisely. The examples, like office building calculations, directly support the detailed analysis needed for accurate bidding and project financial planning.

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Commissioning Engineer Electrical

A Commissioning Engineer Electrical ensures that new or upgraded electrical systems and equipment function according to design specifications and operational requirements. This role demands a thorough understanding of system design and performance parameters. This course offers detailed instruction in Electrical Load Calculations and Design, which can be highly beneficial for a Commissioning Engineer Electrical. The curriculum's focus on voltage drop calculations, short circuit calculations, and the precise sizing of cables and circuit breakers directly informs the testing and verification processes. Understanding these calculations helps ensure that systems are safe, efficient, and meet performance criteria during the critical commissioning phase.

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Utilities Engineer

A Utilities Engineer works within electric utility companies, involved in the planning, design, operation, and maintenance of power grids, particularly distribution networks. This course may be useful for a Utilities Engineer as it directly addresses crucial elements of transmission and distribution systems. The curriculum covers essential calculations such as voltage drop, short circuit analysis for medium voltage cables, and the selection of appropriate circuit breakers (MCB, MCCB, ACB). This knowledge is integral for ensuring the reliability, safety, and efficiency of distribution networks, contributing to informed decisions regarding grid expansion, substation design, and overall power quality management for the Utilities Engineer.

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Electrical Safety Engineer

An Electrical Safety Engineer is dedicated to ensuring that electrical systems and equipment comply with safety standards and regulations, minimizing hazards. A deep understanding of how electrical systems are designed to handle loads and faults is paramount. This course may be useful for an Electrical Safety Engineer, providing detailed insights into Electrical Load Calculations and Design. Key topics such as short circuit calculations, voltage drop, correct sizing of earthing cables, and the differentiation between circuit breaker types are directly relevant to assessing system integrity and preventing electrical failures, making it a foundation for robust safety protocols. Roles in this field often typically require an advanced degree or specialized certifications.

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Electrical Maintenance Engineer

An Electrical Maintenance Engineer is responsible for the upkeep, repair, and optimal performance of electrical systems and equipment within facilities or industrial settings. While focused on maintenance, a deep understanding of design intent and load characteristics is essential for effective troubleshooting and preventative measures. This course may be useful for an Electrical Maintenance Engineer by strengthening their grasp of Electrical Load Calculations and Design principles. Knowledge of cable sizing, circuit breaker types (MCB, MCCB, ACB), short circuit analysis, and load balancing helps in diagnosing faults, planning upgrades, and ensuring systems operate within their design parameters, thereby maximizing equipment longevity and operational safety.

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Electrical Application Engineer

An Electrical Application Engineer works with clients to understand their needs and recommend suitable electrical products or solutions, often for manufacturers or distributors. This requires a strong technical background and the ability to interpret customer requirements into system specifications. This course may be useful for an Electrical Application Engineer as it provides a practical foundation in Electrical Load Calculations and Design. Understanding how to calculate different loads, size cables, and select appropriate circuit breakers and transformers allows for informed product recommendations. This expertise helps in translating complex technical specifications into practical solutions that meet customer project demands effectively.

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Energy Engineer

An Energy Engineer focuses on improving energy efficiency, reducing energy costs, and optimizing energy systems in buildings and industrial processes. Understanding electrical load calculations and management is foundational to this role. This course may be helpful for an Energy Engineer by providing a detailed understanding of Electrical Load Calculations and Design. The curriculum's exploration of static and dynamic loads, derating factors, and component sizing directly impacts energy consumption and system efficiency. This knowledge allows an Energy Engineer to identify areas for optimization, evaluate system performance, and propose intelligent solutions to minimize energy waste. Many roles in this field typically require an advanced degree.

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Technical Sales Engineer Electrical

A Technical Sales Engineer Electrical bridges the gap between complex electrical products and customer needs, requiring both sales acumen and in-depth technical understanding. To effectively advise clients and promote solutions, a solid grasp of electrical system design is crucial. This course may be useful for a Technical Sales Engineer Electrical by providing practical knowledge in Electrical Load Calculations and Design. Understanding static and dynamic loads, cable sizing, voltage drop, and circuit breaker selection helps in explaining product benefits, addressing technical queries, and configuring appropriate solutions for various applications, from individual components to full building systems, enhancing credibility and sales effectiveness.

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