Power transformer protection using chirplet transform
IET Generation, Transmission & Distribution, 2016 This study presents a novel differential protection algorithm (DPA) for power transformer using chirplet transform (ChT). The proposed method combines the features of biased restraint characteristic (BRC) of the conventional differential relay and out‐turn of ChT in a two‐stage algorithm.
Senthil Kumar Murugan +4 more
openaire +1 more source
Real-Time Monitoring & Adaptive Protection of Power Transformer to Enhance Smart Grid Reliability
Electrical, Control and Communication Engineering, 2019 Power transformer is one of the most important pieces of equipment in the grid to reliably and efficiently transmit power to the consumers. Asset management and protection are the best concepts for prolongation of transformer lifespan as well as for the ...
Raichura Maulik +2 more
doaj +1 more source
Protecting power equipment against magnetohydrodynamic effects (MHD) of electromagnetic pulses (EMP) [PDF]
Serbian Journal of Electrical Engineering, 2015 The article is devoted to the effects of geomagnetic-induced currents (GIC) on electrical equipment of power systems and analyzes technical measures for protection against such effects.
Gurevich Vladimir
doaj +1 more source
Power transformer protection using microcontroller-based relay [PDF]
, 2007 Protection of power transformers is a very challenging problem in power system relaying. Since it is very important to minimize the frequency and duration of unwanted outages, this is a high demand imposed on power transformer protective relays.
Bashi, Sinan Mahmod +2 more
core +1 more source
Research on the structure and safety of transformer bushing tap adapter
Zhejiang dianli, 2022 Tap adapter is necessary in online monitoring of transformer bushings to induct current connected to bushing tap. In this paper， earthing structures of transformer bushings in one provincial power grid are investigated.
XIA Jian, ZUO Jie
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 Reports, 2022 Under the development trend of AC/DC hybrid power grids, converter transformers are indispensable as AC/DC conversion equipment, whose safety and stability are particularly important.
Yuanlin Pan +5 more
doaj +1 more source
Turn-to-turn fault protection technique for synchronous machines without additional voltage transformers [PDF]
, 2017 This paper presents a novel protection technique for the detection of inter-turn faults in synchronous machines. It is based on the calculation of voltage in the stator windings from the usual phases and neutral voltage, typically available in ...
Gyftakis, Konstantinos N. +2 more
core +1 more source
Thermal field modeling and characteristic analysis based on oil immersed transformer
Frontiers in Energy Research, 2023 Oil-immersion transformer plays an important role in the operation of power system, and its reliable operation is the basis of the safe and economic operation of power system.
Chao Gao +5 more
doaj +1 more source
On fully superconducting rectifiers and fluxpumps. A review. Part 2: Commutation modes, characteristics and switches [PDF]
, 1981 This paper forms the second part of the review. Full and half wave superconducting transformer rectifiers are analysed. Modes of operation and loss mechanisms are detailed and a comparison between the behaviour of dynamos and rectifiers is presented ...
Kate, H.H.J. ten +1 more
core +2 more sources