voltage monitoring Articles

  • 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 ...


    By Fuel Cells Etc

  • Ferrography Made Easy With The FerroCheck 2000

    The measurement and trending of abnormal ferrous wear debris in machinery lubrication oils is arguably the most significant indicator of machinery health and a key predictor of catastrophic machinery failure. There are several methods available to measure the ferrous content of lubrication oil. ...


    By Spectro Scientific

  • 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 ...

  • Monitoring the magnetic field in houses under 50 Hz high-voltage overhead transmission lines

    This paper deals with a one-week monitoring of the 50 Hz magnetic field on the ground floor and the first floor of houses under 150, 220 and 380 kV high-voltage overhead three-phase AC transmission lines. The field strength varied with the current intensity, the conductor height, and the storey of the house. Because current intensity varies with time the magnetic field depended on the time of day ...


    By Inderscience Publishers

  • 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 ...


    By Inderscience Publishers

  • River Monitoring

    The monitoring of River water has impications not only on the environmental impacts of heavy metals but also upon the quality of drinking water. THis case study covers an analyser installed in a remote location using low voltage power supplies to suppliment the local mains power supply which cannot be relied ...

  • Correlation of dielectric model parameters with experimental results based on PDC, RV and loss factor measurements for high voltage capacitors

    To improve the reliability and quality of electric power systems, preventive diagnosis and regular maintenance of high voltage capacitors are required. Dielectric response measurements in both time domain and frequency domain are potential tools for assessing the condition of dielectric of high voltage capacitors. Modern measurements in time domain include polarisation and depolarisation current ...


    By Inderscience Publishers

  • Diesel Tank Monitoring Solution

    This Case Study describes a solution for monitoring diesel tanks at remote locations. The solution is based on a smart level sensor at each field site and web monitoring software. The sensors measure level and calculate volume of the diesel in liters. This information is transmitted by SMS or GPRS over a GSM cellular network. Additional information is transmitted including temperature at the ...

  • In-pipe monitors turn dreams into reality

    In-pipe monitors turn dreams into reality The quality of tap water has improved enormously in recent decades, but for largely technological reasons, until recently, knowledge of water quality between the treatment works and the tap has been an almost impossible dream for water treatment and distribution network managers. In this article, Jo Cooper, Product Specialist at Intellitect Water, will ...


    By Intellitect Water Ltd

  • Case study - Monitoring landfill gas

    Infrared absorption Infrared absorption is usually the preferred method for measuring methane and carbon dioxide. Most gases absorb radiation in the infrared region. The wavelength of radiation that is absorbed is determined by the natural vibration frequencies of the molecule. These natural frequencies will depend on several factors. Thus different gas molecules have different natural ...


    By Geotech

  • Online condition monitoring of electrical power system imbalance

    Symmetrical components are of great importance in many applications in electrical power systems, such as power protection and condition monitoring. This paper presents a computer-based algorithm for online symmetrical components estimation. The proposed algorithm uses the samples of the phase variables (currents or voltages) to estimate the magnitude and phase angle of each phase phasor at each ...


    By Inderscience Publishers

  • Tunnelling in Chalk: Groundwater monitoring and risk assessment

    Morgan Est is constructing a tunnel to carry high voltage electricity cables between two electrical substations.  The tunnel will mostly be excavated in Chalk, with some excavation occurring in the Thanet Sands. ESI was appointed as Morgan Est’s environmental consultant for the project and has managed liaison between Morgan Est, regulators and other stakeholders over the last four ...

  • HVAC Monitoring Saves Costs for a School Building

    Wireless Technology from CAS DataLoggers Monitors Energy Usage in Real-Time This summer, CAS DataLoggers recently supplied the wireless datalogging solution for a middle school maintenance supervisor who needed to perform power factoring on the building’s HVAC system before winter arrived. The school needed a lightweight ...


    By CAS DATALOGGERS

  • Monitoring Water Quality Runoff From a Coalmine

    Intelligent Monitoring Solutions from dataTaker CAS DataLoggers provided the intelligent datalogging solution for an open-cut coalmine managing a high salinity water runoff into local retaining dams. The water from these dams could only be released into the local river system when it was of sufficient quality to have no effect on the irrigation of the surrounding farming district. ...


    By CAS DATALOGGERS

  • Gas Monitoring for Ventilation Control and Energy Management

    The growing demand for underground and enclosed parking and maintenance garages (resulting from limitations on land availability) has increased the awareness and need for proper ventilation and control systems. In addition, increased health and safety programs have only added to the concerns of toxic and combustible gases in confined or enclosed spaces. Historically, ventilation and make-up air ...


    By Arjay Engineering Ltd.

  • PureAire Monitoring Systems Obtains UL/CUL Listings on All Oxygen Deficiency Monitors

      PureAire Monitoring Systems manufactures and distributes oxygen monitors for safety, and as of July 2013, most monitors now include UL/CUL listings.  Their monitors make sure oxygen remains at a safe and breathable level in areas that utilize gasses such as nitrogen, dry ice, helium, and argon. These gases, commonly known as cryogenic gases, can be hazardous or ...

  • Application of the Most Recent Monitoring Systems in Hydro Power Plants

    Abstract The paper describes main reasons for refurbishment of hydro power plants and summarizes the most frequent works during refurbishment. A special attention is paid to the process of refurbishment of the electric equipment, in the first line generators and excitation systems, and integration of the most contemporary monitoring system. The paper talks about some of the methods of ...

  • 3 Ways to Connect a Cellular Modem to Accsense Monitoring Systems

    Popular in healthcare and life science applications, Accsense monitoring systems utilize a connection to the Internet to monitor a wide range of physical values including temperature, humidity, voltage/current and more. However, this can initially present some difficulty if the user wants to have the easily setup alarming for ...


    By CAS DATALOGGERS

  • Development of resistivity probes for continuous monitoring of pollutant in porous media

    In this study, an attempt has been made to develop resistivity probes and an experimental setup capable of simulating the field conditions concerned with migration of pollutant through the porous media. The porous media chosen for the present study is commercially available uniformly graded sand; while Sodium Chloride solution was considered as the pollutant. For the continuous monitoring of ...


    By Inderscience Publishers

  • Stand alone device for monitoring Temperature & Humidity of Server Room/Data Center

    This small data logger is a stand alone temperature & humidity monitor. This works on separate power supply and has a battery back up as well. Salient Features: ...


    By Vacker LLC

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