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Types of Transformer

types-of-transformer

There are various types of transformer, each with its own applicable usage. However, the main objective of using them is the same – transforming electrical power from one type to another. In this blog, we will aim at enlightening the readers about Transformer basics and working principle, types of transformer on the basis of voltage, medium, uses, configuration and place of usage, their advantages and limitations.

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OSHA Safety Measures To Protect Workers

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​ The Occupational Safety and Health Administration (OSHA) is an agency of the United States, Under the Department of Labor and was created by congress in 1971. OSHA is responsible for protection of workers including their health, safety at work, and managing heathy environment. In 1971, after the deaths of 1400+ workers and 2.5 million employees with disabilities each year, OSH Act is enforced to provide secure and healthy working environment by the enforcement of laws and standards and by the provision of training, education and support.

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All about Electrical Grounding Systems!

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​In this blog we will cover the Need of electrical grounding system, its importance, types of grounded system, common methods and the factors that effects the grounded system installation, safety tips etc. Simply, this blog is all about Electrical Grounding System.

The ground is the common point of return for an electrical flow. The grounding system is a backup pathway that has an alternate route for an electrical current to flow to ground due to any risk in the electrical system before it gets a fire or shock.

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POWER FLOW ANALYSIS

Power-Flow-Analysis
Power flow, or load flow, is widely used in power system operation and planning. The power flow model of a power system is built using the relevant network, load, and generation data. Power engineers are required to plan, design, and maintain the power system to operate reliably and within safe limits. Numerous power flow studies are required to en...
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Fault Analysis in Power Systems

fault-analysis-in-power-systems

Usually, a power system operates under balanced conditions with all equipment's carrying normal load currents and also the bus voltages inside the prescribed limits. This condition can be disrupted because of fault within the system. If the electrical fault current exceeds the interrupting rating of the protective device, the consequences can be devastating. It can be a serious threat to human life and is capable of causing injury, extensive equipment damage.

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Top 5 Advantages of Parallel Operation of Generators or Alternators

parallel-generator

As every field of life becomes more dependent on electric power to operate and grow, backup power systems, like generators, are playing a progressively vital role in guaranteeing uninterrupted supply of power. Generator selection greatly depends on the amount of backup power needed for a specific application. An application may need minimal supply of backup power to ensure uninterrupted functioning or it may need full power of the backup system. It is hard to find a generator that matches the application requirement exactly. This is one area where parallel generators can shine.

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Why Snubber Circuits are Required for Transformer Protection?

Engineers-can-be-employed-to-reliably-perform-transient-stability-studies-and-switching-transient-evaluations-for-power-trans

Switching Transients or Transient Recovery Voltages may occur in certain situations and events occurring frequently in normal operations of a MV or HV industrial or commercial Power System. They may not be fatal in their first occurrence but prolonged exposure to transients will reduce lifespan of power system equipment. They may also disturb the stability of the power system putting the entire installation at a risk of shutdown or failure of certain equipment.

A snubber circuit is a proven way of reducing these transients and ensuring the protection of individual equipment and the wider system. Therefore, snubbers find their applications in many areas in a power system, in most cases becoming an indispensable component of it.

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Is it Sufficient to Use NFPA 70E Tables in Place of an Arc Flash Hazard Study?

The-Arc-Flash-Hazard

Under all circumstances, it is necessary to protect the working personal from dangers associated with live electricity installations. For this reason and to ensure compliance with the OSHA regulations, Arc flash hazard and electric shock hazards need to be evaluated and studied for every facility having an electrical installation.

An arc flash hazard can either be estimated using lookup tables given in the NFPA 70E guidelines or it can be calculated with much more accuracy by a calculation procedure outlined in the IEEE Standard 1584.

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The Importance of Equipment Maintenance Plan for Electrical Power Systems

electrical-equipment-maintenance-plan

Have you ever wondered about the importance of equipment maintenance plan and why is it necessary in Electrical power systems?

Today, we will talk in detail about the planned maintenance of electrical equipment and its importance. A maintenance plan covers a facility's routine maintenance, as well as the long term care of certain equipment or power systems inside of a facility.

In order to know about the details, you must first know about the definition of "Equipment Maintenance plan".

According to the NFPA (National Fire Protection Association); 

"Electrical equipment maintenance plan (EMP) is the practice of conducting routine inspections, tests, and the servicing of electrical equipment so that impending troubles can be detected and reduced or eliminated."

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Should You Open Energized Panel Covers?

electrical-panel-inspection-working-personnel

The practice of removing energized switchboard and panelboard covers when performing annual/quarterly/monthly maintenance has become a common place. De-energization cannot be stressed enough before all types of maintenance work on electrical equipment can be initiated. This is rarely due to the fact that the personnel are inexperienced or non-qualified for the job, but instead it's usually because of following the traditional method without question.

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IEEE 1584-2018 – In Depth Arc Flash Calculations Using Mathcad Express & Etap 19.0 (Extensive Results Comparison)

arc-flash-hazard-test-on-PPE

Previously, we have written a detailed blog on the major changes in the newly approved IEEE 1584-2018 standard. If you haven't checked it out, please click here!

Now, in this blog we will explain the arc flash calculations which are used in the official standard of IEEE 1584-2018 in a very simple and intuitive manner.

Many Arc flash softwares including:

Performs Arc flash calculations in the back end and gives only the final result in the form of Tables, report and Arc flash labels. In this way, user will not be able to grasp the idea of manual calculations, but as a Power Systems Engineer or Protection engineer, you must know about the manual calculations, on which the whole arc flash study calculations rely or based upon.

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What are The 7 Important Steps to Perform An Arc Flash Study? - 2019 Important Guide!

7-steps-of-arc-flash-study

 Are you concerned about the arc flash safety of your facility?

Do you want to know how to carry out a competent arc flash study?

This is your guide to a detailed arc flash analysis! Have a look at the infographic to have a quick review of the seven steps. Read the blog to find out the systematic way in which a proper arc flash study is performed.

It is important to have a clear understanding about the process of arc flash analysis before beginning the actual work. The following steps are employed to perform an arc flash analysis of a facility. After understanding these seven steps, you can have a clear concept on the process of a detailed arc flash study.

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Most Important Frequently Asked Questions Regarding Arc flash Study – What you need to Know!

frequently-asked-question-on-arc-flash-study

Are you having confusions regarding Arc Flash Study? Don't know how and when to carry it out? Or you just need a brief answer to all your queries?

We have seen many people who are confused regarding arc flash study and they have many questions to ask but not able to find it collectively. Considering that, we have compiled this blog and present all the important questions in it.

Go ahead and read this blog to know about this important power systems study.

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Arc Flash Mitigation in M.V. Switchgear!

arc-flash-and-incident-energy-mitigation-methods image source: https://www.convergencetraining.com/arc-flash-safety.html

We have already discussed the importance of an arc flash study for low voltage equipment. You can read more about that blog by clicking here.

Though one might wonder, how big of an arc flash hazard is present in the case of medium voltage switchgear?

The answer: A LOT!

Before delving into the details of how to prevent arc flash for MV switchgear, we will first take a look at the characteristics of an arc flash in MV switchgear. 

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[NEC Guide] Importance of Achieving Selective Coordination for Critical Power Systems!

power-systems-facilities-field-unit

One of the most important parts of any facility is the electrical distribution system.

Nothing will stop all activity, halt production, cause inconvenience and possibly panic, more than a major power failure.

Selective coordination is critical for the reliability of the electrical distribution system.

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Plugging Two Extension Cords Together is Dangerous! Here’s Why Can’t You Attach Two.

Extension cords enable us to deliver power where needed. However, an extension cord is just a temporary solution, and should not be used as a long-term extension of your household's electrical system.

Extension cords are designed to carry a certain level of current over a fixed distance which is the length of the cord. Once you have two identical extension leads connected in series, one after the other, the extension cord's resistance effectively increases. This results in greater heating of the cord and possible damage to the insulation, which can be the source of fires and electrical shock.

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Short Circuit Study – Most Frequently Asked Questions in 2019!

SC_study_bg

 Are you having confusions regarding Short Circuit Study? Don't know how and when to carry it out? Or you just need a brief answer to your query? Go ahead and read the blog to know about this important power systems study all in all!

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The Top 6 Causes of Electrical Fires and How to Prevent Them

arc-flash-hazard-analysis

 Home electrical fires account for an estimated 51,000 fires each year, nearly 500 deaths, more than 1,400 injuries, and $1.3 billion in property damage.

It is important to be aware of the dangers and potential causes of electrical fires in order to learn how to avoid them. In this blog, we will look at some of the most common causes of electrical fires and how to prevent them.

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Arc Rated Vs. Flame Resistant Clothing – Important Difference Need To Know

AR_FR_clothing

When the National Fire Protection Association (NFPA) replaced the term "Flame Resistance (FR)" with "Arc-Rated (AR)" in its 2012 edition of the NFPA 70E, it stirred confusion among many.

What was the difference between FR and AR?

The short answer: 

"All arc-rated clothing is flame resistant, but not all flame resistant clothing is arc-rated"

Image Source: help.Olivetree.com
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NFPA 70E 2018 – An Overview of 4 Different Arc Flash PPE Categories

personal-protective-equipment

An unfortunate truth about Arc Flash incidents is that they can occur regardless of training. Without proper protective measures, workers are left exposed to dangerous conditions and have to suffer the consequences. Every year, more than 2,000 people are admitted to burn centers with severe arc-flash burns.

While arc-flash cannot be completely eliminated, there are steps we can take to prevent it. The single most important measure is placing the equipment in a "Safe Working Conditions" If it is more dangerous to turn the equipment off, workers should wear appropriate Personal Protective Equipment (PPE).

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Most Popular Posts

Usually, a power system operates under balanced conditions with all equipment's carrying normal load currents and also the bus voltages inside the prescribed limits. This condition can be disrupted b...
As every field of life becomes more dependent on electric power to operate and grow, backup power systems, like generators, are playing a progressively vital role in guaranteeing uninterrupted supply...
Power flow, or load flow, is widely used in power system operation and planning. The power flow model of a power system is built using the relevant network, load, and generation data. Power engineers ...
​ The Occupational Safety and Health Administration (OSHA) is an agency of the United States, Under the Department of Labor and was created by congress in 1971. OSHA is responsible for protection of w...
​In this blog we will cover the Need of electrical grounding system, its importance, types of grounded system, common methods and the factors that effects the grounded system installation, safety...