Arc Flash Hazard Study – 5 Ways You Can Ruin It

Electrical Concepts / By / / 1 minute of reading

The complete article written by Steve Coleman and Aleen Mohammed (PeGuru admin) is published in the Electrical Construction & Maintenance magazine. Read this article on ECMweb at: https://ecmweb.com/arc-flash/arc-flash-hazard-evaluation Article Abstract: If you are conducting an arc flash study, you are probably using one of the many software packages that can perform the analysis for you […]

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Arc flash vs the HRC4 - 40Cal suit

Arc Flash Hazard Study – The Basics

Electrical Concepts / By / / 4 minutes of reading

Arc flash hazard is a huge concern in areas where you are operating medium voltage (1kV – 34kV) and low voltage (less than 1kV) equipment. Mostly because, when you inadvertently initiate a fault, an arc flash ensuing it releases enormous amount of heat energy. The composition of this arc includes molten bits of copper or aluminium busbar or cable.

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Arc flash vs the HRC4 - 40Cal suit

Basics of Pilot Relaying & Application Considerations For Transmission Line Protection

Substation Protection and Control / By / / 5 minutes of reading

Pilot relaying refers to the communication network implemented on the high voltage transmission line (T-line) to transmit “trip or don’t trip” signal to and fro between two or more substations. The intent here is to trip the circuit breakers as fast as possible when a fault strikes the T-line, therefore, protecting it.

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Wave Trap with Corona Fittings

Directional Comparison Blocking Scheme

Substation Protection and Control / By / / 4 minutes of reading

The Directional Comparison Blocking (DCB) scheme is the most popular pilot relaying scheme, implemented to protect high voltage power lines. This scheme is more dependable than a permissive transfer trip scheme because it trips the breaker even when there is no carrier signal from the remote end pilot relay. Let’s dive into details.

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Fault Zones
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