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Technical Articles Tagged With 'circuit breaker'

Power Substation

Interlocking for 380kV GIS Substation: Insights into CB and isolator test and service positions

Interlocking systems are critical to the safe and efficient operation of high-voltage substations, ensuring proper sequencing of equipment operations and preventing dangerous scenarios such as simultaneous energization or grounding. This technical article delves into the intricacies of the 380kV interlocking…...

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Feb 03, 2025 | By

Interlocking for 380kV GIS Substation: Insights into CB and isolator test and service positions
Power Substation

Interlocking for 380kV GIS Substation: One-and-a-half breaker scheme analysis

This article delves into various aspects of the one-and-a-half breaker scheme applied to 380kV GIS switchgear, starting with its benefits and operational framework. It further examines the critical interlocking concepts, including open and closed positions, the “under operation” state (dangerous…...

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Jan 13, 2025 | By

Interlocking for 380kV GIS Substation: One-and-a-half breaker scheme analysis
Power Substation

What is Interlocking in substations, and what is it for?

Interlocking in substations is a critical aspect of power system protection and control, designed to ensure the safe and efficient operation of substation equipment. The primary objective of interlocking is to prevent hazardous situations, such as energizing an earthed circuit…...

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Dec 16, 2024 | By

What is Interlocking in substations, and what is it for?
Energy and Power

Voltage transformer selection scheme in complex substations

In substations, voltage transformers (VTs) are used extensively for energy metering, protection relay operations, and synchronization checks. Their design includes multiple cores, each dedicated to specific functions. For instance, a protection core, typically labeled 3P, offers acceptable accuracy for fault…...

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Dec 02, 2024 | By

Voltage transformer selection scheme in complex substations
Power Substation

Synchro Check Schemes: Key Techniques and Considerations for Power System Stability

In power systems, synchronization is a fundamental requirement for connecting two sources of electric power, such as a generator to a grid or between segments of the power network. Ensuring that these sources are aligned in frequency, phase sequence, and…...

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Nov 18, 2024 | By

Synchro Check Schemes: Key Techniques and Considerations for Power System Stability
Maintenance

Bringing new life to an old Air-Insulated Substation (AIS)

An increasing number of substations globally are aging, while the construction of new ones is hindered by competitive limitations, rigorous environmental rules, and community acceptance issues. Simultaneously, the demand for electricity is consistently escalating, resulting in increased short circuit levels… Read more

Nov 07, 2024 | By

Bringing new life to an old Air-Insulated Substation (AIS)
Power Substation

Mastering Distance Protection and Calculations Part 1: Advice and Serious Warnings

In 2004, I embarked on an intensive nine-month training program in protection and instrumentation. This experience laid the foundation for my deep understanding of substation protection systems, combining both theoretical knowledge and practical application. The first protection scheme we delved…...

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Sep 09, 2024 | By

Mastering Distance Protection and Calculations Part 1: Advice and Serious Warnings
Energy and Power

Best practice in hard times: How to safeguard the hundreds and thousands of substations

Like it or not, hard times are in front of us, by all means. I won’t deal the hard times now, but instead, I’ll shortly say that it’s all about the energy resources and who owns them. It’s also not…...

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Jun 17, 2024 | By

Best practice in hard times: How to safeguard the hundreds and thousands of substations
Energy and Power

ATS Schematics and Logic Analysis for a Substation 415V AC Auxiliary Supply Panel

In modern electrical power systems, ensuring a reliable and continuous supply of electricity is critical, particularly in facilities where downtime can result in significant operational disruptions and financial losses. Low voltage automatic transfer schemes at substations play a vital role…...

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Jun 03, 2024 | By

ATS Schematics and Logic Analysis for a Substation 415V AC Auxiliary Supply Panel
Power Substation

Intricacies of a breaker pole discrepancy and its implications for substation operation

This article delves into the realm of pole discrepancy in high voltage circuit breakers, shedding light on its mechanisms, applications, and the pivotal role it plays in enhancing system reliability. From understanding the choice between gang (three-pole) and independent (single-pole)…...

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Apr 08, 2024 | By

Intricacies of a circuit breaker pole discrepancy and its implications in substation operation
Energy and Power

Circuit breaker schematics in a nutshell: Tripping, closing and blocking coil arrangements

This technical article embarks on a comprehensive exploration of various facets of circuit breaker technology, traversing from the fundamental principles of solenoid coils to the sophisticated mechanisms of SF6 density monitoring circuits. Delving into the intricacies of circuit breaker tripping…...

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Mar 25, 2024 | By

Circuit breaker schematics in a nutshell: Tripping, closing and blocking coil arrangements
Energy and Power

Want to learn to analyze electrical schematics? Great! But first, you must understand these.

This technical article delves into a diverse array of switches and components that are fundamental to the operation and control of electrical systems. Starting with the basics like TURN, PULL, and PUSH switches, we navigate through the intricacies of latching…...

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Jan 15, 2024 | By

Want to learn to analyze electrical schematics? Great! But first, you must understand these.


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