Advanced Concepts in Grounding and Fault Mitigation

Short-Circuit Current Calculations, Ungrounded & Isolated Networks, Ground Fault, Earthing Impedance, Zigzag Transformer

What you'll learn
- Types of Electrical Faults
- Short-Circuit Current Calculations (Overview)
- Short-Circuit in Isolated Networks
- Earthing Impedance
- Ungrounded (Isolated) Systems
- Ground Fault in Isolated Systems
- Phenomena Associated with Ground Faults
- Grounding Transformers and Ground Fault Current Limiting
- Zigzag Grounding Transformer
- Grounding of Low Voltage Systems (Ungrounded Networks, Direct Grounding, Effective Grounding, High Resistance Grounding)
- Grounding of Medium Voltage Systems (Ungrounded Systems, Solid Grounding, Direct Grounding, Low Resistance Grounding)
- Grounding with Ground Fault Neutralizer
- Grounding of Systems in Hazardous Areas

Requirements
- Electrical Engineer, Calculator, PDF Reader, Office Program

Description
Through my practical experience (22 years) in the field of electrical substations for medium voltage (MV), high voltage (HV), and extra-high voltage (EHV), as well as working with various consulting offices in designing electrical distribution networks for many important projects that require accuracy in various electrical calculations, in addition to obtaining a Master's degree in Engineering Sciences in Power and Electrical Machines Engineering titled "Detection and Identification of Power Quality Problems using advanced Artificial Intelligence techniques (LSTM)", this course and these very important questions were prepared using the best engineering programs that connect academic/theoretical aspects with practical/reality in high voltage and extra-high voltage electrical substations, as well as distribution networks for medium and low voltages.

This unique approach to explanation and question preparation has been designed to cater to all engineering and technical levels, starting from students in engineering universities and various technical institutes, all the way to highly experienced specialized engineers in power systems and electrical distribution.

The course has been explained in a practical manner, relying on simplicity in theoretical explanations and placing greater emphasis on visuals and real-life practical examples. This approach allows us to connect academic theoretical study with what actually exists in practical reality for real-world application after completing this course.

The course we have is closely related to the power systems and electrical distribution systems. In this course, we provide the following:

Advanced Concepts in Electrical Grounding and Fault Mitigation

* A quick overview of the fundamentals of short-circuit current calculations.

* Short-circuit currents in isolated networks.

* Earthing or grounding impedance.

* How fault currents can be controlled by adjusting the neutral grounding method.

* Ground fault in isolated, unearthed, systems.

* Transient overvoltages and how they occur in ungrounded systems.

* Important effects that can occur when a ground fault happens.

* An important phenomenon known as the Second Short Circuit

* The phenomenon of arcing ground—what it is, how it happens, and why it can be dangerous.

* The phenomenon of false starting in motors.

* Grounding in low-voltage systems.

* Primary objectives of system grounding.

* Experience-based guidelines for grounding.

* Natural capacitances in electrical networks.

* Grounding transformers and their roles in electrical systems.

* How grounding transformers can be used to limit fault current.

* The Zigzag Grounding Transformer and its key considerations.

* Grounding Methods.

* Ungrounded Networks.

* Direct and Effective Grounding.

* High Resistance Grounding.

* Final recommendation for the types of grounding used in low-voltage networks.

* Grounding methods used in medium-voltage systems.

* Ungrounded Systems.

* Solid Grounding.

* Low-Resistance Grounding.

* High Resistance Grounding.

* Reactance Grounding.

* Ground Fault Neutralizer Grounding.

* Protection Schemes used in medium-voltage systems.

* Residual Relaying Scheme.

* Ground Sensor Scheme.

* Neutral Ground Scheme.

* Grounding systems in hazardous areas.

* Grounding and the ferroresonance phenomenon.

* Ratings and specifications of grounding devices.

* The steps for selecting and determining ratings for the grounding by reactance and grounding with a Zigzag transformer.

Who this course is for:
- Engineering college students and students of technical institutes. Engineers and technicians working in power stations and distribution networks. Specialists involved in the study and mitigation of short-circuit currents in electrical power networks.
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