5 substation building services that usually lack of proper design (and make troubles later)

This technical article introduces five main principles involved with substation control building and switchyard services that make a lot of troubles to substation crew if poorly designed. The article covers… Read more

Nov 20, 2019 | Power Substation

Medium voltage soft starter for heavy-duty motor control (operation and special applications)

A soft starter is an electronic motor controller used on three phase medium voltage squirrel cage induction motors. During motor starting, the soft starter controls the voltage or current supplied… Read more

Nov 18, 2019 | Electric Motor

The wiring diagram and physical layout of the equipment inside the motor control centre

This article will provide a description of most important equipment and working principle of a real case motor control centre (MCC). That is an usual name for a switchboard with…...

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Nov 14, 2019 | Electric Motor ♛

4 electrical quantities you MUST fully understand to select the right cast-resin transformer

This the basic question, but it’s important to start from the scratch. Well, distribution transformers link the MV to the LV system and step down the electrical power to be… Read more

Nov 13, 2019 | Low Voltage

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… Read more

Nov 11, 2019 | Testing and Commissioning

13 very important type tests of a low voltage switchgear carried out by the manufacturer

Certification of distribution assemblies is defined by international standard IEC 61439-1. This standard provides common rules that are recognized worldwide. Compliance with the standard is certified, depending on the country… Read more

Nov 06, 2019 | Low Voltage

The essentials of an automatic changeover systems in medium voltage networks

In medium voltage distribution networks, it is important to maintain a high level of reliability. Industry relies on the continuous operation of critical plant, which requires no or little disruption… Read more

Nov 04, 2019 | Energy and Power

Lessons I learned during the start-up of an MV switchgear

In the world of electrical engineering, a term start up assumes all works which are necessary to be done for putting in operation already tested switchgear, as close as possible…...

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Oct 31, 2019 | Medium Voltage ♛

Reactive power compensation in electrical plants with generators

Compensation of reactive power applied in buildings or small facilities operates in the first and second quadrants of the coordinate system. Increasingly, complex industrial plants, for example plants burning wood… Read more

Oct 30, 2019 | Energy and Power

Principles and applications of busbar protection schemes (you SHOULD know about)

In olden days, the clearance of busbar faults was done by time delayed distance relays or overcurrent relays, resulting in extension of fault for longer duration of time. In present… Read more

Oct 28, 2019 | Protection

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