EEP - Electrical Engineering Portal

November Gift! 🎁 – Save 15% on PRO Membership Plan with discount coupon: 220KVAC Premium Pro membership plan includes everything of the Basic plan with addition of access to advanced electrical guides and technical papers, all regular guides and article bonus downloads (schemes, diagrams, guides and drawings) which will further shape your technical skills. This plan includes specialized technical articles in fields of low- medium- and high-voltage applications written by experienced electrical engineers who have worked or still working in our industry for 20+ years. These articles are always explained in-depth, and go into great detail on a topic, covering everything that might be useful to power engineers and technicians who work with power substations, maintenance or supervising. Apply the coupon 220KVAC https://lnkd.in/dvv-xzkw

A course designed for engineers, technicians, and commissioning staff that thoroughly explores the principles, techniques, and practical applications of phasing in power substations, providing a systematic framework for comprehending its importance. The course consists of 14 lessons in duration of 2 hours and 32 minutes. https://lnkd.in/dzExuBDy

In addition to the known phenomena of lightning and switching, numerous new sources, in particular power converters, can cause disturbance in installations. This disturbance, which is generated by the installation itself or carried by the system from external sources or by the conductive parts, earthing circuits and shared elements, depends on the characteristics of the installation (impedances, short-circuit power, resonance, etc.). https://lnkd.in/g32ef2b

As we delve deeper into this article, we will explore the various types of interlocking mechanisms used for Gas-Insulated Substation (GIS), their applications in substations, power plants, and electrical installations, as well as their significance in ensuring the sustained safety and functionality of these vital components of the power transmission infrastructure. To start with the discussion, first let’s ask a few very important questions and try to give simple and straight-forward answers. How to ensure proper operation of substation components? Well, let’s say that substations play a pivotal role in the seamless and safe transmission of electrical power. Ensuring the proper operation of various components within substations is of paramount importance to both personnel safety and the integrity of the entire electrical system. To achieve this, substations are equipped with a comprehensive interlocking scheme, which is a critical safety measure in this high-voltage environment. https://lnkd.in/dudExNJN

Commissioning is frequently referred to as wet commissioning. It is an engineering activity that occurs after the precommissioning phase, sometimes referred to as dry commissioning. Commissioning is an engineering activity focused on testing the plant or its components when fully energized with power, pressure, heat, steam, and water, alongside all auxiliary systems operational. In the era of relay logic and manual plant control, commissioning was rather limited. Modern power plants are now entirely automated and predominantly unmanned, receiving inputs from various field devices like as start, stop, overload, ready, local/remote status, circuit breaker position, trip signals, and analog etc. https://lnkd.in/dD_QiYEu

Why Seal In Circuit is Required? In the realm of electrical circuits, the integration of seals and contactors serves as a critical aspect in ensuring the efficiency, safety, and reliability of operations. The necessity of incorporating seals and contactors stems from various intricacies and challenges that cannot be adequately addressed by conventional buttons alone. First and foremost, it is essential to comprehend the limitations associated with traditional buttons. While buttons may seem like straightforward components for circuit control, they are susceptible to a phenomenon known as contact bouncing. This phenomenon occurs when the button is pressed or released, causing the electrical contacts to oscillate rapidly before settling into a stable closed or open position. https://lnkd.in/dTvQbkDY

This technical article will go over various aspects of factory acceptance testing (FAT) for custom prefabricated power substation and its related electrical components (such as MV and LV switchgear, MV-LV Motor Control Centre (MCC), UPS systems, AC/DC auxuliary power supply panels, and so on) to ensure that the systems were properly manufactured in full compliance with design specifications. https://lnkd.in/d8xfGeNa

The sum of currents to a node must, according to Kirchhoff’s current law, be zero. The differential protection utilizes this fact and is based on a comparison of the currents on all sides of the protected object. The sum of currents flowing into an object such as a shunt reactor is zero except when there is a fault in the object (or within the zone limited by the current transformers). The principle of current summation is illustrated in Figure 1 below. Please note that primary currents flowing in the direction towards the object are regarded as positive. https://lnkd.in/deWxC8-d

It’s important to know that digital low-voltage switchgear uses low power output signals from current and voltage sensors, which are by nature safer for substation operators. By IEC 61868, these sensors are frequently referred to as non-conventional instrument transformers (NCITs) or low-power passive current or voltage transformers. Non-conventional instrument transformers (NCITs), which employ a novel measuring technique, are able to transmit signals across longer distances without sacrificing high accuracy levels. Without the significant heating losses of conventional measurement instruments, these signals can be produced and sent. NCITs have secondary outputs in the millivolt (mV) range. More info https://lnkd.in/dYRPKYER

Commissioning of a power plant or an industrial plant is not that simple, on contrary, it’s full of hidden traps and logical challenges. Commissioning is frequently referred to as wet commissioning. It is an engineering activity that occurs after the precommissioning phase, sometimes referred to as dry commissioning. Commissioning is an engineering activity focused on testing the plant or its components when fully energized with power, pressure, heat, steam, and water, alongside all auxiliary systems operational. In the era of relay logic and manual plant control, commissioning was rather limited. Modern power plants are now entirely automated and predominantly unmanned, receiving inputs from various field devices like as start, stop, overload, ready, local/remote status, circuit breaker position, trip signals, and analog etc. Read more https://lnkd.in/dD_QiYEu