Results 31 to 40 of about 70,029 (188)
Optimal passive filter design for effective utilization of cables and transformers under non-sinusoidal conditions [PDF]
, 2014 Transformers and cables have overheating and reduced loading capabilities under non-sinusoidal conditions due to the fact that their losses increases with not only rms value but also frequency of the load current.
Aleem, SHEA +3 more
core +1 more source
Voltage distribution in multi‐cascaded transformer
Electrical Engineering in Japan, 1997 The voltage distribution for lightning surges in multicascaded transformers that will be used for converter transformers in self-excited dc transmission was studied using model transformers. There was good agreement between measured data and calculated results.
Tatsuhito Nakajima +4 more
openaire +2 more sources
Optimal Operation of Distribution Electronic Power Transformer Using Linear Quadratic Regulator Method [PDF]
Journal of Intelligent Procedures in Electrical Technology, 2011 Transformers perform many functions such as voltage transformation, isolation and noise decoupling. They are indispensable components in electric power distribution system.
Mohammad Hosein Rezaei +2 more
doaj
A Dimension Reduction Method Used in Detecting Errors of Distribution Transformer Connectivity
IEEE Access, 2020 Many power utilities may have problems with the quality of data in records about which feeder a distribution transformer is connected to. This affects the operation and maintenance of smart grid infrastructure, outage management, line loss management ...
Zeyang Tang +6 more
doaj +1 more source
Harmonic voltage measurement error of the capacitor voltage transformer
PLOS ONE, 2018 This paper explores the mechanism for the harmonic voltage measurement error (HVME) of a capacitor voltage transformer (CVT) in a comprehensive way and develops a practical error correction method to improve the harmonic measurement performance of a CVT.
Jian Le, Hao Zhang, Chao Gao, Qian Zhou
openaire +4 more sources
Development of a smart transformer to control the power exchange of a microgrid [PDF]
, 2013 A smart transformer enables to control the power exchange between a microgrid and the utility network by controlling the voltage at the microgrid side within certain limits.
De Kooning, Jeroen +3 more
core +1 more source
Design optimisation for distance between additional and tap winding in high-voltage transformers
High Voltage, 2020 The transformer is one of the main components in the power network and transformer windings are one of the most expensive elements in the power transformer.
Kamran Dawood +3 more
doaj +1 more source
Less-conventional low-consumption galvanic separated MOSFET-IGBT gate drive supply [PDF]
, 2017 A simple half-bridge, galvanic separated power supply which can be short circuit proof is proposed for gate driver local supplies. The supply is made while hacking a common mode type filter as a transformer, as the transformer shows a good insulation, it
Bikorimana, Jean Marie Vianney +1 more
core +3 more sources
Energy InformaticsAccurately evaluating the error of voltage transformers in distribution networks is crucial for the safe operation of power systems and the fairness of electricity trade.
Xiujuan Zeng +4 more
doaj +1 more source
, 1984 The object of the invention is to provide an improved converter for converting one direct current voltage to another. A plurality of phased square wave voltages are provided from a ring counter through amplifiers to a like plurality of output ...
Garrett, H. +3 more
core +1 more source