Voltage Monitoring Articles
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Revealed! AMI energy meter hardware composition
AMI energy meter also called smart meter, it is smart grid electricity terminal monitor.Through AMI energy meters, utilities enable to offer new time-based rate programs and incentives that encourage customers to reduce peak demand and manage energy consumption and costs. AMI energy meter is the most important terminal hardware of smart grid. Today, I will revealed the hardware composition of AMI ...
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5 reasons system integrators should upgrade their motor starters
Motor starters play a key role in control panels. They turn motors on and off, as well as protect motors from overloading. System integrators often face specific project requirements that relate to the function or output of a motor starter. But system integrators also face challenges: They must meet completion deadlines. They face a labor shortage. Mistakes often take time to correct, which ...
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Kurzschluss-Tester schaltet bis 45.000 Ampere
Mit seinem Kurzschluss-Tester für Batteriesysteme bleibt der Stuttgarter Mess- und Testsystemspezialist SMART TESTSOLUTIONS seinem modularen Entwicklungsansatz treu: Das Testsystem ist in zwei Schränke unterteilt. Einer davon enthält ausschließlich den Kurzschlussschalter und kann sehr nah am Prüfling betrieben werden, der andere beinhaltet die Messtechnik. Das erste System dieser Art ist für die ...
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Power Quality for Telecommunication Plants
The power supply of telephone plants and FM/TV relay stations has always entailed numerous problems and specific needs which are difficult to meet, among them: to assure the safety of operators working on the plants, according to the law to assure continuity of operation to the plants to create a compact distribution system for all loads usually present in relay stations to limit the costs ...
By IREM SpA
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Power Quality: Top Protection
The Power Quality problems of an electrical distribution network are often generated locally within the structures and can depend on various situations, such as, for example, construction works, switching on high loads, faulty distribution components and particular basic electrical disturbances. Furthermore, external causes such as atmospheric events (hurricanes, lightning, snow, ice and ...
By IREM SpA
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Steroguard Line Conditioners: customized Power Quality
With the increasingly widespread use of sensitive electrical and electronic equipment, it is essential to have a “clean” and stable mains power supply to protect and make critical applications reliable. IREM Steroguard Line Conditioners represent the solution for most of the disturbances coming from the electrical network: they offer complete galvanic isolation of the ...
By IREM SpA
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FPV Drone Battery
FPV 4s Drone Battery For most drone newbies, racing drone battery is very important to know how to choose a best 4s lipo battery for your drone, multi-rotors are fueled by LiPo battery, they are able to store and deliver large amount of power. Since they're made of individual cells, the battery you buy ends up having the voltage of all the cells combined. So, if you get 3S batteries, they will be ...
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Protection Relay for Shaft Current and Voltage
Introduction The paper deals with the specific protection relay for all types of generators. The instrument, called Shaft Current and Voltage Protection Relay (SCVP) was developed at KONCAR – Electric Engineering Institute Inc. This instrument is a part of Institute's product line used for monitoring and diagnosis of rotating electrical machines. The most important parts of every electric ...
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Power quality problem mitigation by unified power quality conditioner: an adaptive hysteresis control technique
An adaptive hysteresis current and voltage control technique for controlling Unified Power Quality Conditioner (UPQC) is proposed in this paper. The novelty of the proposed method is the series and shunt active power filters (APF) present in the UPQC has been controlled by the separate adaptive controllers for reducing the voltage and current perturbations. Here, the adaptive control technique ...
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An improved power quality boost–flyback SSIPP fed BLDC motor drive
This paper presents a single–stage isolated power factor corrected power supply (SSIPP) fed permanent magnet brushless DC (BLDC) motor drive. An advantage of fast voltage regulation with single voltage control loop of SSIPP is utilised to develop a power factor correction (PFC) based BLDC motor drive. The speed of BLDC motor is controlled by varying the DC link voltage of the voltage source ...
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Fuel Cell Voltage Monitoring Considerations
Knowing what’s happening inside a fuel cell is a critical function, especially as fuel cells are continuing to be developed. One important aspect of this is to measure the voltageof each cell in a stack. Although this may sound trivial, it can be more complex and more expensive than it may at first appear due to high voltages, high channel counts,communication types, etc. There are a few ...
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Dorton College Royal London Society for the Blind case study
About Dorton College Founded in 1838, the Royal London Society for the Blind (RLSB) has a long and distinguished history in helping blind and partially sighted people to achieve their goals in education, training and employment. RLSB's Dorton College of Further Education supports their mission to removing barriers to personal fulfilment and social inclusion by providing a complete educational ...
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Bristol City Council Fairfield High School case study
About Bristol City Council and Fairfield High School Fairfield High School is a specialist performing and virtual arts college under the authority of Bristol City Council. It is designed as a horseshoe shaped building, rising to a maximum height of six storeys, with a central atrium as the school assembly hall. The school provides a high level of insulation with 100 mm thick mineral fibre ...
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Roehampton University case study
About Roehampton University Roehampton University is a campus university situated on three major sites at Roehampton in south-west London, in the United Kingdom. The listed buildings stand in grounds close to Richmond Park and Putney, with central London a few miles away. Today the University has a broad range of expertise across the arts and humanities, social sciences and the human and life ...
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NHS – Calderstones Partnership NHS Foundation Trust case study
About the Calderstones Partnership NHS Foundation Trust Calderstones NHS gained its ‘Foundation Trust’ status in 1993, which allows it a larger degree of independence from both the Department of Health and the local NHS Strategic Health Authority than other NHS trusts. It is also classed as a NHS Mental Health Trust, providing specialist care and services for those with learning ...
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Minimisation of VA loading of UPQC in three–phase four–wire distribution system
Unified power quality conditioner (UPQC) is a combination of series and shunt active power filters with a common DC link. This device is used to enhance power quality by injecting required amount of Volt–Ampere (VA) into the system. In view of the cost effectiveness, it is desirable to have VA loading of UPQC without compromising the compensation capability. This paper presents a methodology to ...
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A self-tuning optimised unscented Kalman filter for voltage flicker and harmonic estimation
This paper presents a novel technique for estimation of two important power quality problems like voltage flicker and harmonics in power networks using an unscented Kalman filter (UKF) algorithm. The fluctuating voltage of a power network resulting in voltage flicker is tracked for estimating its envelope, voltage magnitude, and frequency. Further, the unscented filter is used to estimate ...
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The CBR-PNN approach to real-time voltage security assessment of power systems
This paper presents the Case-based Reasoning (CBR) technique, a novel approach to voltage security assessment of power system in a real-time environment. The Probabilistic Neural Network (PNN) is used for determining the solution to a new case, using the old cases from the case base of the CBR system. A feature selection technique based on the information gained has been employed to identify the ...
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Grid interconnection of microturbine-based distributed generation system
Distributed Generation (DG) is predicted to play an important role in the electric power system in the near future. The insertion of DG systems into existing electric systems has a great impact on real-time system operation and planning. It is widely accepted that Microturbine Generation (MTG) systems are currently attracting much attention for meeting customers' needs in the ...
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Characterisation of power quality disturbances based on wavelet transforms
This paper presents a new technique for detecting and characterising disturbances in power systems based on wavelet transforms. The voltage signal under investigation is often corrupted by noises, therefore the voltage signal is first denoised using wavelet thresholding and then wavelet transform is applied to the denoised signal. Using the first-level detail wavelet coefficients, the voltage ...
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