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Archive: Category «Medium Voltage»

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

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

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Dec 14, 2020 | Salem Alshahrani

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

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…...

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Nov 30, 2020 | Salem Alshahrani

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

My experience in drafting the layout & 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…...

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Nov 17, 2020 | Bishal Lamichhane

My experience in drafting the layout & arrangement drawing of 33/11 kV distribution substation

How hard can be analyzing MV switchgear wiring diagrams and single line diagram

The capability of reading different types of drawings is an essential skill to perform almost all of the engineering tasks. The engineering drawings form the building blocks of industry method to convey detailed information to…...

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Oct 05, 2020 | Salem Alshahrani

How hard can be analyzing MV switchgear wiring diagrams and single line diagram

My experience in the first synchronization of the MV generator in an industrial plant

Any power plant commissioning, from small industrial GTG to nuclear facility, will converge to a very final step before (provisional) commercial operation, sometimes empathized as “first kW”: synchronization to local or national grid. This is…...

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Sep 21, 2020 | Marco Bruschini

My experience in the first synchronization of the MV generator in an industrial plant

A case study of fault level calculations for a MV/LV network using direct method

This technical article represents the case study of fault level calculations for an MV/LV network using the direct method. There are many advantages of the direct approach, and the main of them is that it…...

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Jul 19, 2020 | Sivakumar K

A case study of fault level calculations for a MV/LV network using direct method

My experience and guidance in the design and electrification of a modern airport

The electrical systems for airports require proper quality installations and consideration for features usually not involved in other electrical installations. In this article, we will be discussing the general elements of electrical practices and facilities…...

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Jun 29, 2020 | Bishal Lamichhane

My experience and recommendations in the design and electrification of airports

The most common issues I experienced in wiring of a medium voltage switchgear

Nowadays, the design and manufacturing of a Medium Voltage switchgear is not an easy task. Many factors could affect the generation of an optimal set of engineering drawings to be easily followed by the wiring…...

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May 18, 2020 | Ivan Contreras

The most common issues I experienced in wiring of a medium voltage switchgear

My experience in the design and installation of medium voltage switchgears

Medium Voltage (MV) switchgear is typically any switchgear over 1000V in the United States (US). Some of the nominal voltage ratings used in the US by power utilities are 2.4-4.16kV, 7.2kV, 13.8kV, 14.4kV, 23kV, 34.5kV…...

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May 07, 2020 | Amar M

My experience and issues during the design and installation of medium voltage switchgear


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