Maintenance
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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 Edvard Csanyi
Energy and Power
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Ten most dangerous mistakes in the operation of low voltage switchgear (you should be aware of)
Low-voltage equipment is generally classified as any equipment that requires a rating of less or equal to 1000 volts to operate. With a majority of electrically driven equipment falling under this category in industrial environments, this technical article focuses on…...
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Dec 28, 2020 | By Ezeala Winner
Maintenance
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My worst experience in the maintenance and supervision of medium voltage substations
While there are various voltage levels applicable across the globe depending upon the usability, the category of Medium Voltage remains one of the most critical voltage group comprising primary distribution or sub-transmission category of power supply at the range of…...
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Jun 01, 2020 | By Bishal Lamichhane
Maintenance
The art of transformer maintenance, inspection and repair (recommended practices)
The primary purpose of transformer maintenance is to ensure the internal and external parts of the transformer and accessories are kept in good condition and “fit for purpose” and able to operate safely at all times. A secondary and equally… Read more
Feb 10, 2020 | By Edvard Csanyi
Maintenance
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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12 on-site checks to inspect the transformer’s health
On-site inspection of the substation transformer usually exposes important condition changes and it initiates various suspicions that need to be investigated in detail. As with any other substation equipment, many things could go wrong during the transformer operation. For example,…...
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Nov 11, 2019 | By Edvard Csanyi
Maintenance
Protective grounding requirements for transmission and distribution lines
This technical article covers protective grounding requirements for steel tower and wood pole supported transmission and distribution lines, and insulated power cables. Protective grounds must be installed so all phases of lines or cable are visibly and effectively bonded together… Read more
Sep 25, 2019 | By Edvard Csanyi
Low Voltage
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Things you MUST know when commissioning low voltage switchgear and circuit breakers
Purchasing low voltage switchgear is not that easy, it’s not like purchasing a new TV or laptop. You have to be very experienced and deadly serious when specifying and ordering LV switchgear, but also during the commissioning and testing. This…...
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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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Sep 23, 2019 | By Edvard Csanyi
Maintenance
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Maintenance and troubleshooting guidelines for a typical high voltage switchgear
Like any other major component of the high voltage electrical network, a switchgear also needs maintenance schedules for trouble-free operation during its life cycle. No one should work on the system itself or on any plant controlled by it, without…...
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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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Aug 07, 2019 | By Edvard Csanyi
Maintenance
Troubleshooting Transformer In Power Substation And Detailed Failure Investigation
Failure of transformer in power substation is not a sudden phenomenon, for that matter each and every failure will take place only after alerting through some pre-signs. If they went unnoticed or unattended will result in failure. Therefore it is… Read more
Nov 06, 2017 | By Edvard Csanyi
Maintenance
How do faults develop in a HV transformer and why condition monitoring is important
Condition monitoring equipment that can be used to extend the life of a transformer or to prevent catastrophic failure could pay for itself many times over. However, condition monitoring does not come free of charge, and tight budgets are to… Read more
Jul 10, 2017 | By Edvard Csanyi
Energy and Power
Lock-out tag-out practice and seven other steps that save lives
Lock-Out / Tag-Out (LOTO) refers to the specific practices and guidelines to safeguard employees from the unexpected start-up, movement, activation, energizing, release of energy, etc of machinery, equipment, plant, systems during service, maintenance or inspection activities. In short: To protect… Read more
Jun 16, 2017 | By Edvard Csanyi
Electric Motor
Recommended maintenance practice for electric motors and generators
Motors are inherently highly reliable, requiring little routine maintenance. This remains true for most duties but may not be so where environmental conditions are aggressive, the starting duty is onerous, or high structural vibration is present. Maintenance practice recommendations for… Read more
May 25, 2017 | By Edvard Csanyi
Datacenters
Never underestimate electrostatic discharge (ESD) while working with data networking equipment
Let’s start with basics you probably already know, but nevertheless. It’s important to explain the basics first. Electrostatic Discharge (or ESD) refers to the transfer of electrostatic charge between bodies at varied voltages that is caused by direct contact or… Read more
Mar 08, 2017 | By Edvard Csanyi
Maintenance
Performing power factor test on dry-type transformer during commissioning
The power factor test is a maintenance test used to determine the insulation system dielectric power loss by measuring the power angle between an applied AC voltage and the resultant current. Power factor is defined as the ratio of the… Read more
Mar 01, 2017 | By Edvard Csanyi
Maintenance
Transformer exterior inspection and tests you MUST perform periodically
Periodic transformer exterior inspection (visual) reveals important condition information. For example, valves positioned incorrectly, plugged radiators, stuck temperature indicator and level gauges, and noisy oil pumps or fans. Oil leaks can often be seen which indicate a potential for oil… Read more
Jan 25, 2017 | By Edvard Csanyi
