It’s a known fact that we humans use a lot of energy and we don’t even use it responsibly. But, here’s something interesting, even if we did manage our energy use, we’d still be wasting a lot of the energy. In fact, all that wasted energy is released in the form of heat and that’s

Possible Causes of Voltage Fluctuation

Thursday, 04 January 2018 by

For the most part, almost all of us enjoy a steady flow of electricity, whether we’re at home or at the workplace. However, sometimes, there’s bound to be a few issues. A voltage fluctuation is one such issue. What is a voltage fluctuation you ask? Well, a voltage fluctuation is nothing but random and repeated

The electrical system in your building has one key job to carry out, which is to power all the electrical equipment such as the HVAC system, the machinery, and the lights. However, things don’t always go as planned. Your electrical system is simply a machine at the end of the day and it’s likely to

When looking to develop a proper testing and maintenance schedule for low voltage circuit breakers there is only two options; primary current injection testing or secondary current injection testing. Proper maintenance is essential for power circuit breaker reliability and safety. The advantages and disadvantages of each testing method will be described below. Primary Current Injection

BY TODD MARTIN, Basler Electric Company       Updating Switchgear Relays Electromechanical overcurrent relays such as the IAC and CO are the historical backbone of power system protection. These relays use delicate mechanisms and precision components to develop their operating characteristics and are subject to misoperation and failure resulting from contamination, corrosion, and simple aging.


Thursday, 04 September 2014 by

Safety In general, any outdoor activity in bad weather constitutes a risk and should not be performed without a thorough risk assessment and appropriate authorization. A severe risk is posed by lightning. Doble Engineering does not recommend testing in any situation where lightning is a present or an imminent threat. Equipment Status and Motivation for

NETA: Setting The Standard

Wednesday, 20 August 2014 by

Article Written By Jill Howell, NETA In the early 1970s, there were few standards for electrical testing. NFPA had authorized a committee in 1968 to create NFPA 70B, Recommended Practice for Electrical Equipment Maintenance. This standard addressedelectrical equipment maintenance practices. It also touched on acceptance testing, advised on equipment, type of tests, and how often

What is an Arc Flash

Monday, 12 August 2013 by

Definition An arc flash is the light and heat produced from an electric arc supplied with sufficient electrical energy to cause substantial damage or harm, fire or injury. Electrical arcs, however, fed by limited energy and well controlled, produce very bright light (as in arc lamps—enclosed, or with open electrodes), and are also used for

It’s no doubt you already know that, with ambient temperatures reaching 35,000 degrees Fahrenheit, four times higher than the temperature of the sun’s surface, the results of Arc Flash are rarely less than devastating. Reasons Why Arc Flashes Are Generated Generally, there are three main causes of arc flashes: Human error – unsafe work procedures, maintenance mistakes, and

Among engineers electrical engineers are the ones who specialise in the study of electricity and its applications. As the supply of power became common and commercial the need for professionals who could understand electricity and its implications arose giving birth to the specialised field of electrical engineering. As an electrical engineer there are many job