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Technical Articles / EEP Authors

Category 'Testing and Commissioning' - Technical Articles

This category includes dozens of articles about testing and commissioning low—medium—and high-voltage equipment and assemblies, such as circuit breakers, CTs, VTs, disconnectors, switchgear, transformers, electric motors, capacitor banks, etc. Special attention is given to testing procedures and identifying common mistakes that engineers make during testing.

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Maintenance

The art of predicting the fate of a power transformer by looking into a cup of oil

Insulation medium is an indispensable part of a power transformer, and the interesting thing about it is that it can drop dead at any time. Most of the time, this doesn’t happen, but… This article presents the transformer oil features…...

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Jan 09, 2023 | By

The art of predicting the fate of a power transformer by looking into a cup of oil
Premium Content

Often incorrectly specified and ordered: Power transformer fittings and accessories

Modern transformers are like cars full of sensors and electronics that scream and flash when something goes wrong. Most of the time, that’s very good and useful, but it could be irritating in case of repetitive false alarms that need…...

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This content is not available in your premium membership plan. Please upgrade your plan in order to access this content. You can choose an annually based Basic, Pro, or Enterprise membership plan. Subscribe and enjoy studying specialized technical articles, online video courses, electrical engineering guides, and papers.
With EEP's premium membership, you get additional essence that enhances your knowledge and experience in low- medium- and high-voltage engineering fields.
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Nov 14, 2022 | By

Often incorrectly specified and ordered: Power transformer fittings and accessories
Premium Content

Inside Variable Frequency Drive (VFD) Panel: Configuration, Schematics and Troubleshooting

Proper analysis of the VFD’s power and control circuit diagrams is essential for successful troubleshooting. But before starting any analysis, you must know how your system connected through VFD works and how it breathes. You must also know all components…...

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This content is not available in your premium membership plan. Please upgrade your plan in order to access this content. You can choose an annually based Basic, Pro, or Enterprise membership plan. Subscribe and enjoy studying specialized technical articles, online video courses, electrical engineering guides, and papers.
With EEP's premium membership, you get additional essence that enhances your knowledge and experience in low- medium- and high-voltage engineering fields.
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Jul 25, 2022 | By

Inside Variable Frequency Drive (VFD) panel: Configuration, schematics and troubleshooting
Power Substation

The most common type tests required for medium and high voltage switchgear

Let me put the definition of switchgear type tests this way. A switchgear MUST withstand voltage in normal and abnormal conditions and to carry varying load currents during its lifetime. A switchgear MUST be able to clear faults occurring due…...

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May 02, 2022 | By

The most common type tests for medium voltage switchgear required from customers
Premium Content

Where and how to find the root cause of a power transformer failure (troubleshooting guide)

When Whatsapp, Facebook, or Gmail is down, it’s manageable, but if transformers fail, the entire business comes to a standstill. No-power-no-business transformers, as the heart of every substation, impact industries and affect the country’s economy and have social and political…...

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Dec 27, 2021 | By

Where and how to find the root cause of a transformer failure (troubleshooting guide)
Power Substation

On-load tests you MUST perform during the switchgear commissioning process

On-load tests constitute the final activity in the commissioning process of low voltage or medium voltage switchgear. They are carried out immediately after the newly installed equipment is energized from the power system, and they are the definitive tests in…...

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This content is not available in your premium membership plan. Please upgrade your plan in order to access this content. You can choose an annually based Basic, Pro, or Enterprise membership plan. Subscribe and enjoy studying specialized technical articles, online video courses, electrical engineering guides, and papers.
With EEP's premium membership, you get additional essence that enhances your knowledge and experience in low- medium- and high-voltage engineering fields.
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Nov 22, 2021 | By

On-load tests you MUST perform during the substation commissioning process
Premium Content

Learn how to prepare for transformer acceptance tests and final inspections

Generally speaking, acceptance tests and final inspections of a transformer should not have any improvisations, but they usually do have. The essential purpose in carrying out the final tests on the transformer is to ensure that the design is as…...

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This content is not available in your premium membership plan. Please upgrade your plan in order to access this content. You can choose an annually based Basic, Pro, or Enterprise membership plan. Subscribe and enjoy studying specialized technical articles, online video courses, electrical engineering guides, and papers.
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Nov 01, 2021 | By

Learn how to prepare for transformer acceptance tests and final inspections
Premium Content

My worst experience in testing and commissioning power transformers (and how I fixed things up)

Reliable and secure electric power delivery is dependent on power transformers’ reliability that is enhanced significantly by sound test plans. These test plans shall be prepared by both manufacturers and end-users to develop thorough and effective plans and specifications. The…...

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This content is not available in your premium membership plan. Please upgrade your plan in order to access this content. You can choose an annually based Basic, Pro, or Enterprise membership plan. Subscribe and enjoy studying specialized technical articles, online video courses, electrical engineering guides, and papers.
With EEP's premium membership, you get additional essence that enhances your knowledge and experience in low- medium- and high-voltage engineering fields.
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Apr 29, 2021 | By

My worst experience in testing and commissioning power transformers (and how I fixed things up)
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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This content is not available in your premium membership plan. Please upgrade your plan in order to access this content. You can choose an annually based Basic, Pro, or Enterprise membership plan. Subscribe and enjoy studying specialized technical articles, online video courses, electrical engineering guides, and papers.
With EEP's premium membership, you get additional essence that enhances your knowledge and experience in low- medium- and high-voltage engineering fields.
Black Friday Deal 💥 - Save 20% on Pro Plan with code BLACKFRIDAY
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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…...

Membership Upgrade Required

This content is not available in your premium membership plan. Please upgrade your plan in order to access this content. You can choose an annually based Basic, Pro, or Enterprise membership plan. Subscribe and enjoy studying specialized technical articles, online video courses, electrical engineering guides, and papers.
With EEP's premium membership, you get additional essence that enhances your knowledge and experience in low- medium- and high-voltage engineering fields.
Black Friday Deal 💥 - Save 20% on Pro Plan with code BLACKFRIDAY
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Jan 25, 2021 | By

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


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