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

Previously, an introductory part of the GIS and its components were discussed to pave the way for the GIS control circuits. Moreover, the single-line diagram example for a double-bus and a single breaker clarifies several…...

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This technical article/guide requires a Premium Membership. Get access to all premium HV/MV/LV technical articles, electrical engineering guides, and papers. Check out each plan's benefits and choose the membership plan that works best for you or your organization.
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Jan 25, 2021 | Salem Alshahrani

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

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,…...

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This technical article/guide requires a Premium Membership. Get access to all premium HV/MV/LV technical articles, electrical engineering guides, and papers. Check out each plan's benefits and choose the membership plan that works best for you or your organization.
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Jan 11, 2021 | Salem Alshahrani

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

Ten most dangerous mistakes in the operation of low voltage switchgear (you should be aware of)

The Association of Steam and Electric Apparatus Owners (APAVE) generally classifies low-voltage equipment as any equipment that requires a rating of ≤ 1000 volts to operate. With a majority of electrically driven equipment falling under…...

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This technical article/guide requires a Premium Membership. Get access to all premium HV/MV/LV technical articles, electrical engineering guides, and papers. Check out each plan's benefits and choose the membership plan that works best for you or your organization.
You can choose an annually based Plus, Pro, or Enterprise membership plan.Log InSign Up

Dec 28, 2020 | Ezeala Winner

Ten most dangerous mistakes in the operation of low voltage switchgear (you should be aware of)

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…...

PREMIUM Membership Required

This technical article/guide requires a Premium Membership. Get access to all premium HV/MV/LV technical articles, electrical engineering guides, and papers. Check out each plan's benefits and choose the membership plan that works best for you or your organization.
You can choose an annually based Plus, Pro, or Enterprise membership plan.Log InSign Up

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…...

PREMIUM Membership Required

This technical article/guide requires a Premium Membership. Get access to all premium HV/MV/LV technical articles, electrical engineering guides, and papers. Check out each plan's benefits and choose the membership plan that works best for you or your organization.
You can choose an annually based Plus, Pro, or Enterprise membership plan.Log InSign Up

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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This technical article/guide requires a Premium Membership. Get access to all premium HV/MV/LV technical articles, electrical engineering guides, and papers. Check out each plan's benefits and choose the membership plan that works best for you or your organization.
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Nov 17, 2020 | Bishal Lamichhane

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

Mastering Motor Control Center (MCC): Wiring diagrams and equipment from zero to hero

Motor control center (MCC) was introduced back in 1937 to place different motor starters in one cabinet to save space. It is a modular cabinet that supplies and controls motors, which is usually a tailor-made…...

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This technical article/guide requires a Premium Membership. Get access to all premium HV/MV/LV technical articles, electrical engineering guides, and papers. Check out each plan's benefits and choose the membership plan that works best for you or your organization.
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Nov 02, 2020 | Salem Alshahrani

Mastering Motor Control Center (MCC): Wiring diagrams and equipment from zero to hero

Why remote racking of LV/MV circuit breakers is a smart investment but so rare to see?

Circuit breaker racking is one of the most prominent exercises in the power system that exposes an operator to risk. A sudden malfunction during the racking process can induce catastrophic consequences to the operator and…...

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This technical article/guide requires a Premium Membership. Get access to all premium HV/MV/LV technical articles, electrical engineering guides, and papers. Check out each plan's benefits and choose the membership plan that works best for you or your organization.
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Oct 19, 2020 | Bishal Lamichhane

Why remote racking of LV/MV circuit breakers is a smart investment but so rare to see?

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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This technical article/guide requires a Premium Membership. Get access to all premium HV/MV/LV technical articles, electrical engineering guides, and papers. Check out each plan's benefits and choose the membership plan that works best for you or your organization.
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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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This technical article/guide requires a Premium Membership. Get access to all premium HV/MV/LV technical articles, electrical engineering guides, and papers. Check out each plan's benefits and choose the membership plan that works best for you or your organization.
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Sep 21, 2020 | Marco Bruschini

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

How to convert old substation to a digital substation?

Typically, substations comprise power elements like power transformers, switches, busbars, etc. and control elements like protection units, metering units, RTUs, SCADA, etc. While the power elements are mandatory requirements, the control elements vary as per…...

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This technical article/guide requires a Premium Membership. Get access to all premium HV/MV/LV technical articles, electrical engineering guides, and papers. Check out each plan's benefits and choose the membership plan that works best for you or your organization.
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Sep 07, 2020 | Bishal Lamichhane

How to convert old substation to a digital substation?

Substation and switchyard support structures for electrical equipment (you SHOULD know)

Substation and switchyard structures are used to support the above-grade components and electrical equipment such as cable bus, rigid bus, and strain bus conductors, switches, surge arresters, insulators, and other equipment. Substation and switchyard structures…...

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This technical article/guide requires a Premium Membership. Get access to all premium HV/MV/LV technical articles, electrical engineering guides, and papers. Check out each plan's benefits and choose the membership plan that works best for you or your organization.
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Aug 26, 2020 | Edvard

Substation and switchyard structures that support electrical equipment

My experience in solving problems in the cracker plant using a high-speed bus transfer solution

Incoming power supply details: Two of 6.6kV voltage lines are connected to the cracker plant from the distribution substation through reactors. Captive power plant (electricity generation facility) consists of two 36MVA gas turbine generators, two…...

PREMIUM Membership Required

This technical article/guide requires a Premium Membership. Get access to all premium HV/MV/LV technical articles, electrical engineering guides, and papers. Check out each plan's benefits and choose the membership plan that works best for you or your organization.
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Aug 17, 2020 | Satish Nurukurthi

My experience in solving problems in cracker plant using High-Speed Bus Transfer (HSBT)

My practical experience in the electrical protection system of industrial generators

A functional protection system installed, commissioned, and maintained on critical equipment like an industrial generator is of high importance. As such, every protection system must have the ability to: accurately detect, discriminate and isolate, and…...

PREMIUM Membership Required

This technical article/guide requires a Premium Membership. Get access to all premium HV/MV/LV technical articles, electrical engineering guides, and papers. Check out each plan's benefits and choose the membership plan that works best for you or your organization.
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Aug 03, 2020 | Ezeala Winner

My practical experience in the electrical protection system of industrial generators

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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This technical article/guide requires a Premium Membership. Get access to all premium HV/MV/LV technical articles, electrical engineering guides, and papers. Check out each plan's benefits and choose the membership plan that works best for you or your organization.
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Jul 19, 2020 | Sivakumar K

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


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