NDLI: Flux-based turn-to-turn fault protection for power transformers

Content Provider	IET Digital Library
Author	Mostafaei, Mohsen Haghjoo, Farhad
Abstract	Since the internal turn-to-turn faults (TTFs), as a common cause of the transformer failures, result in minor changes on terminal currents/voltages, they maybe undetected by the conventional protective relays. In this study, a simple, sensitive and robust linkage flux-based technique is proposed to protect the power transformers against TTFs. In this approach, some separated multi-turn windings as search coils (SCs) have to be wrapped around the transformer core legs to sense the related passing flux. Since passing equal flux through a transformer core leg in normal condition induces equal voltages in the related SCs, variation of the induced voltages indicates the fault occurrence in that phase. Against the traditional differential protection schemes, current transformer error and saturation, tap changer operation, energising inrush current, over-fluxing etc. cannot impact the proposed technique performance. Therefore, it can be introduced as a comprehensive protection technique for power transformers.To confirm the proposed technique performance, it is tested on a real 50 kVA, 20 kV/400 V three-phase distribution transformer, in various conditions, too.
Starting Page	1154
Ending Page	1163
Page Count	10
ISSN	17518687
Volume Number	10
e-ISSN	17518695
Issue Number	Issue 5, Apr (2016)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-gtd/10/5
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-gtd.2015.0738
Journal	IET Generation, Transmission & Distribution
Publisher Date	2016-04-07
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Apparent Power 50 KVA Current Transformer Error Differential Protection Scheme Distribution Network Energising Inrush Current Fault Diagnosis Fault Occurrence Flux-based Turn-to-turn Fault Protection Internal TTF Internal Turn-to-turn Fault Multiturn Windings On Load Tap Changers Passing Flux Power Distribution Power Transformer Protection Protective Relay Robust Linkage Flux-based Technique Tap Changer Operation Terminal Current Terminal Voltage Three-phase Distribution Transformer Transformer And Reactors Transformer Core Legs Transformer Failure Voltage 20 KV Voltage 400 V
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Energy Engineering and Power Technology Electrical and Electronic Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Sensitive incipient inter-turn fault detection algorithm for power transformers

Design and development of fault classification algorithm based on relevance vector machine for power transformer

Effect of transformer winding mechanical defects, internal and external electrical faults and inrush currents on performance of differential protection

A Two Terminal Network-Based Method for Discrimination Between Internal Faults and Inrush Currents

Sweep frequency response analysis based diagnosis of shorts within transformer windings

New algorithm for the protection of delta-hexagonal phase shifting transformer

The Discrimination of Inrush Current from Internal Fault of Power Transformer based on EMD

Technique for inrush current modelling of power transformers based on core saturation analysis

Experimental testing and model validation of a decoupled-phase on-load tap-changer transformer in an active network

Flux-based turn-to-turn fault protection for power transformers

Similar Documents

Sensitive incipient inter-turn fault detection algorithm for power transformers

Design and development of fault classification algorithm based on relevance vector machine for power transformer

Effect of transformer winding mechanical defects, internal and external electrical faults and inrush currents on performance of differential protection

A Two Terminal Network-Based Method for Discrimination Between Internal Faults and Inrush Currents

Sweep frequency response analysis based diagnosis of shorts within transformer windings

New algorithm for the protection of delta-hexagonal phase shifting transformer

The Discrimination of Inrush Current from Internal Fault of Power Transformer based on EMD

Technique for inrush current modelling of power transformers based on core saturation analysis

Experimental testing and model validation of a decoupled-phase on-load tap-changer transformer in an active network

Flux-based turn-to-turn fault protection for power transformers