Arc Flash Protection – What Really Happens When Systems Fail
The technician didn’t hear anything unusual. No alarm. No warning. No smoke. Just a standard low-voltage switchboard in a commercial building—exactly the kind you’ve probably stood in front of before. He opened the panel door. And in less than a fraction of a second,...
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What Are Electronic Overload Relays? Explained!
Electronic overload relay sends a signal to the contactor to open and disconnect the motor from the power supply. Most electronic overload relays also offer diagnostic information on percentage full-load current, thermal load, time to trip, and history, which may serve for predictive maintenance...
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ComAp InteliPro – An Advanced Mains Decoupling Relay
ComAp InteliPro offers a highly flexible mains decoupling relay designed to meet strict utility protection standards. It is ideal for distributed generation, cogeneration units, renewable energy sources, and backup protection for generator sets. The ComAp InteliPro stands out with its flexibility and robust features....
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ComAp MainsPro: Mains Protection Relay Features
ComAp MainsPro offers enhanced protection for your energy systems. Additionally, it is suitable for installations including renewable energy sources. With this combination of features, usability, and reliability, it becomes a first choice while managing modern energy. Reliable protection for modern energy systems MainsPro provides...
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Siemens SIPROTEC Protection Relay – An Innovative Device
Siemens SIPROTEC protection relay is a compact and innovative device that offers complete protective functionality. It is designed to monitor and treat electrical circuits effectively for safe operation against faults and irregularities. Key Features and Benefits Space-Saving Design SIPROTEC relays offer a high level...
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Types of Protection Relays and Testing procedures
Protection relays are indispensable components of modern power systems, ensuring the reliability, safety, and stability of electrical networks. These devices detect abnormal operating conditions and initiate protective actions to isolate faults and prevent equipment damage. However, to ensure the effectiveness of protection schemes, regular...
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Earth fault loop impedance testing – Key concepts
Earth Fault Loop Impedance Testing is a process in which the impedance between the live conductor and the earth path in an electrical circuit is measured. Two principal tests are included: the first, namely the External Impedance Test, Ze; the second is System Loop...
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How To Install Surge Protective Devices As Per AS/NZS 3000
This article gives information on how to install Surge Protective Devices (SPDs) in order to protect against transients overvoltages generated by powerline disturbances and natural phenomena such as lightning striking near exposed conductors, according to Clause 2.7.3. SPDs are not intended to protect against...
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Difference Between Cascading And Selectivity In Power System
Cascading and selectivity are two important concepts in designing power system protection and back-up. The principles of cascading and selectivity ensure systems’ reliability, protection, and cost-effectiveness while operating under a variety of fault conditions. Selectivity (Discrimination) Selectivity, or discrimination, is essential to ensure the...
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How Clean Tech Controls Puts Quality First – ISO 9001 Certification
At Clean Tech Controls, quality is our number one priority. We hold an ISO 9001 certification, which proves that we have a well-structured and organised quality management system. This shows that Clean Tech Controls: • has a long-term strategy to ensure consistent, high-quality output....
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