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NOMEX protective garment

Advanced protection against electromagnetic exposures and electric arc

HAZARDS AROUND

While working live in the energized grid, presence of voltage around the workers requires special attention. However, live-line (live working) techniques are widely applied for decades, several accidents in the past prove that the level of safety must be improved to minimize the number and seriousness of injuries in the future.
In the high voltage grid, bare-hand method is a common technique for safe live work. In the surroundings of any energized equipment,...

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Introducing Intelligent Power Today

Welcome to Intelligent Power Today Magazine, our publication that explores and explains the who, what, where, when, why and how of intelligent electrical devices, a collection of complex mechanical devices and sophisticated control systems used in industrial, commercial, and institutional...

Counterfeiting Kills

Each year, the counterfeiting of well-known brands and products continues to rise, creating an even more threatening problem. Such well-known counterfeited brands, including consumer safety and critical electrical products, are estimated to be five to seven percent of world trade. The International...

Electrical Protection

Overcoming Relay Coordination Challenges

Relay coordination in electrical transformer protection is a critical process that ensures the safety and reliability of the power system. Effective coordination involves configuring multiple protective relays to operate in harmony, such that they correctly identify and isolate faults with minimal impact on the power network. This task becomes increasingly complex in large-scale power systems with numerous interconnected transformers and circuits. In complex power systems with multiple transformers and interconnected feeders, ensuring proper coordination between protective relays becomes a significant challenge.

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Relay Coordination: Ensuring Selective Fault Isolation

A well-coordinated protection scheme employs strategically placed protective relays that sense fault currents and trip the appropriate circuit breaker to isolate the faulted section with minimal disruption to the rest of the system. This selective tripping minimizes equipment damage and facilitates faster restoration of power.

Several factors contribute to the complexity of relay coordination in large...

Electrical Protection Articles


Protection Schemes for Commercial and Industrial Facilities

The strategies and recommended practices that apply to protection schemes for commercial and industrial facilities have evolved in the past decade. It is important that facilities managers and protection practitioners understand and embrace these developments. The key challenges arise from the new...