On load tap changers
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The Conference focuses on all aspects of instrumentation and measurement science and technology research, development and applications. The list of program topics includes but is not limited to: Measurement Science & Education, Measurement Systems, Measurement Data Acquisition, Measurements of Physical Quantities, and Measurement Applications.
1. Devices, Packaging and System Integration; 2. Power Converter and Their Control; 3. Power Quality Mitigation; 4. Electric Propulsion System; 5. Renewable Energy and Smart Grid Technology.
Condition monitoring and diagnosis for power equipments and power systems,power plants, dielectric materials and their aging mechanisms, degradation assessment for power system, application of information and communication technologies for condition monitoring and diagnosis, tropical climate and other related issues including recycling, reuse and mitigation,strategic planning and management for condition monitoring and diagnosis.
This conference is directed towards those who develop, test or use electrical insulation in electrical equipment.
2012 International Conference on High Voltage Engineering and Application (ICHVE)
This conference can provide an excellent platform to share knowledge and experiences on high voltage engineering, and present the advices on the construction and maintenance of UHV transmission lines in China.
Research, development, design, application, construction, the installation and operation of apparatus, equipment, structures, materials, and systems for the safe, reliable, and economic delivery and control of electric energy for general industrial, commercial, public, and domestic consumption.
Requirements, planning, analysis, reliability, operation, and economics of electrical generating, transmission, and distribution systems for industrial, commercial, public, and domestic consumption.
Foata, M.; Beauchemin, R.; Rajotte, C. Transmission and Distribution Construction, Operation and Live-Line Maintenance Proceedings. 2000 IEEE ESMO - 2000 IEEE 9th International Conference on, 2000
Vibro-acoustic diagnostic of on-load tap changers (OLTC) offer numerous advantages: applicable online, sensitive to mechanical as well as electrical malfunctions, retrofitable to old equipment, simple and low-cost. Over the last few years, Hydro-Quebec has spent considerable efforts in the development of a reliable acoustic methods for both monitoring and diagnostics, this paper describes the methodology proposed for periodic testing via ...
Tajfar, A.; Kalantar, M.; Iravani, R.; Zare, K. Industrial Technology, 2008. ICIT 2008. IEEE International Conference on, 2008
This paper deals with the issue of coordination of cascaded tap changers in radial distribution feeders. Poor coordination causes unnecessary operations of the tap changers and consequently unnecessary wear as well as poor voltage quality. A new fuzzy-rule-based controller that coordinates tap operations at different voltage levels is proposed and compared to non-coordinated control scheme in this paper. Simulation system ...
Pasquotto de Lima, P.A.; Lopes Cabral, S.H. Electrical Insulation Magazine, IEEE, 2014
The on-load tap changer (OLTC) is a crucial and expensive component of every power transformer. Its primary function is the dynamic adjustment of load voltage to specified levels without interrupting load current. Apart from thermal limitations at each tap position, the main concern in correctly rating an OLTC is the basic impulse insulation level (BIL). The reason for this is ...
Salman, S.K.; Wan, Z.G. Power Tech, 2007 IEEE Lausanne, 2007
Voltage control is considered one of the basic operational requirements of electrical power systems both at distribution and transmission levels. The most popular voltage control equipment includes On-Load Tap Changer (OLTC) transformer controlled by Automatic Voltage Control (AVC) relay, which is mostly used in 11 kV networks. In recent years, a growing number of distributed/embedded generators are connected to distribution ...
Pengju Kang; Birtwhistle, D.; Daley, J.; McCulloch, D. Power Engineering Society Winter Meeting, 2000. IEEE, 2000
The paper describes a condition monitoring and diagnostic monitoring system developed for power transformer on-load-tap-changers (OLTCs). The system has been installed in distribution substations to continuously monitor the operation of OLTCs on 33/11 kV power transformers. The field trials have demonstrated that the system can provide reliable indication regarding the actual condition of OLTC contacts. Also presented in the paper ...
IMS 2011 Microapps - Mixed-Signal Active Load Pull - The Fast Track to 3G/4G Amplifier Design
IMS 2011 Microapps - Vector-Receiver Load Pull - Measurement Accuracy at its Best
IMS 2011 Microapps - Active and Hybrid Load Pull - A Paradigm Shift
MicroApps: Advances in Load Pull Simulation (Agilent Technologies)
MicroApps: 200W RF Power Amplifer Design using a Nonlinear Vector Network Analyzer and Measured Load-Dependent X-Parameters (2) (Agilent Technologies)
Resonant Power Supply: NXP
Bari-Bari-II: Jack-Up Rescue Robot with Debris Opening Function
RF Power Amplifier Design for Pseudo Envelope Tracking
IMS 2014: Broadband Continuous-mode Power Amplifiers
APEC 2011-Intersil Promo Apec 2011
This guide applies to mineral oil used in transformers, load tap changers, voltage regulators, reactors, and circuit breakers. The guide discusses the following: a) Analytical tests and their significance for the evaluation of mineral insulating oil. b) The evaluation of new, unused mineral insulating oil before and after filling into equipment. c) Methods of handling and storage of mineral insulating ...
This guide includes guidelines for the following: insulating oil maintenance and diagnostics, oil reclamation, testing methods for the determination of remaining insulation (paper) life, and upgrades of auxiliary equipment such as bushings, gauges, deenergized tap changers (DETCs), load tap changers (LTCs) (where applicable), and coil reclamping. The goal of this guide is to assist the user in extending the useful ...