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Category 'Power Substation' - Technical Articles

Category “Power Substation” is dedicated to technical articles about a subsidiary station of an electricity generation, transmission and distribution system where voltage is transformed from high to low or the reverse using transformers. This also includes primary and secondary distribution, substation installation, testing and commissioning, erection and other important topics.

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Medium Voltage

Sizing of 110V DC charger for MV panels – Auxiliary power supply in power substations

An auxiliary DC power system that consists of a charger, battery bank, DC distribution system, and monitoring system is a critical part of the primary/secondary substation. It is directly associated with the mechanism of fault detection, trip coil operation, remote…...

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Feb 08, 2021 | By

Sizing of DC charger 110V (Auxiliary power supply used in primary/secondary substation) for MV panels
Maintenance

Recommendations for the successful erection of medium voltage switchgear

Electrical engineers working on project execution know that switchgear erection brings many challenges, no matter the voltage level. The switchgear cannot always be assembled in the factory and shipped to the site as a complete plant, so it is usually…...

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Feb 01, 2021 | By

Recommendations for the successful erection of medium voltage switchgear
Power Substation

Learn how to read and analyze control circuits of MV gas insulated switchgear (GIS)

The single-line diagram example for a double-bus and a single breaker clarifies several concepts that are for the GIS only. It is challenging to comprehend and grasp the control circuits due to the interrelated components and functions that impose additional…...

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Jan 25, 2021 | By

Learn how to read and analyze control circuits of MV gas insulated switchgear (GIS)
Power Substation

Mastering GIS control circuits: AC/DC auxiliary circuits and circuit breaker closing circuit

A gas-insulated substation (GIS) is usually utilized in high voltage applications in which all conductive parts are encapsulated in sealed cylinders with SF6 as the insulating medium. The air-insulated substation (AIS), on the other hand, has air as an insulating…...

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Jan 11, 2021 | By

Mastering GIS control circuits – AC/DC auxiliary circuits and circuit breaker closing circuit
Medium Voltage

Mastering switchgear control circuits: trip, BCPU and alarm, indication, and interlock circuits

In the previous article, an introductory part of the switchgear control circuits, including DC/AC circuits and breaker closing circuit, was discussed thoroughly. This article continues the discussion with a breaker trip circuit, bay control-protection unit (BCPU) & alarm circuit, indication…...

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Dec 14, 2020 | By

Mastering switchgear control circuits: trip, BCPU and alarm, indication, and interlock circuits
Medium Voltage

Mastering switchgear control circuits – AC/DC circuits and circuit breaker closing circuit

Control circuits are vital to the operation of medium voltage switchgear. The integrity of these control circuits is essential to the switchgear’s proper operation, so commissioning and maintenance activities records are extremely important for troubleshooting practices. Furthermore, one has to…...

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Nov 30, 2020 | By

Mastering switchgear control circuits – AC/DC circuits and circuit breaker closing circuit
Medium Voltage

Learn how to draft the layout and arrangement drawing of 33/11 kV distribution substation

Medium voltage substations fall within the sub-transmission power system category, which feeds the bulk consumers directly or facilitates the secondary and tertiary distribution to small industrial and household consumers over an area after a suitable stepping down of voltage. Because…...

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Nov 17, 2020 | By

Learn how to draft the layout and arrangement drawing of 33/11 kV distribution substation
High Voltage

Testing and commissioning of MV/HV switchgear (wiring, final inspection and checks)

This article continues the series of articles dedicated to the erection, testing and commissioning of MV/HV switchgear by describing the most important precautions and recommendations in various procedures and steps. Starting from the wiring of low voltage command and signal…...

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Oct 28, 2020 | By

Guide to testing and commissioning of MV/HV switchgears (Wiring, final inspection and checks)
High Voltage

Guide to erection and commissioning of MV/HV switchgear (Inspection, installation and assembly)

Erection and commissioning of MV/HV switchgear are quite complex and full of tiny little details that can easily make your project slow down or even stop. Not to mention deadlines and penalties which are hanging over everybody’s heads involved in…...

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Oct 26, 2020 | By

Guide to erection and commissioning of MV/HV switchgears (Inspection, installation and assembly)


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