Field correlation between electromagnetic and high flux stator core tests

D. R. Bertenshaw; A. C. Smith

doi:10.1049/cp.2012.0144

Field correlation between electromagnetic and high flux stator core tests

D. R. Bertenshaw, A. C. Smith

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

In stator core interlamination insulation fault tests, there is a commonplace expectation that the Quad signal detected by EL CID is correlated to the high flux test, at the rate of 5-10 °C/100mA. Evidence to date has been supportive but inconclusive. A new opportunity has been taken to review 106 reported core fault test results from the field on turbo and hydro-generators, where both tests were conducted on the same fault. A number of normalisation corrections were proposed and applied, which resulted in the population mean trend correlation lying between 8.5-10.7 °C/100mA with a 95% confidence factor. The central quartiles embrace the 6-12 °C/100mA range, close to the expected rate.

Original language	English
Title of host publication	IET Conference Publications\|IET Conf Publ
Place of Publication	London
Publisher	Institution of Engineering and Technology
Pages	P25
Volume	2012
ISBN (Print)	9781849196161
DOIs	https://doi.org/10.1049/cp.2012.0144
Publication status	Published - 2012
Event	6th IET International Conference on Power Electronics, Machines and Drives, PEMD 2012 - Bristol Duration: 1 Jul 2012 → …

Conference

Conference	6th IET International Conference on Power Electronics, Machines and Drives, PEMD 2012
City	Bristol
Period	1/07/12 → …

Keywords

EL CID
Interlaminar insulation
Stator core

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1049/cp.2012.0144

Cite this

@inproceedings{e085b272890c4bacae5a7c8e7d8f1dc3,

title = "Field correlation between electromagnetic and high flux stator core tests",

abstract = "In stator core interlamination insulation fault tests, there is a commonplace expectation that the Quad signal detected by EL CID is correlated to the high flux test, at the rate of 5-10 °C/100mA. Evidence to date has been supportive but inconclusive. A new opportunity has been taken to review 106 reported core fault test results from the field on turbo and hydro-generators, where both tests were conducted on the same fault. A number of normalisation corrections were proposed and applied, which resulted in the population mean trend correlation lying between 8.5-10.7 °C/100mA with a 95% confidence factor. The central quartiles embrace the 6-12 °C/100mA range, close to the expected rate.",

keywords = "EL CID, Interlaminar insulation, Stator core",

author = "Bertenshaw, {D. R.} and Smith, {A. C.}",

year = "2012",

doi = "10.1049/cp.2012.0144",

language = "English",

isbn = "9781849196161",

volume = "2012",

pages = "P25",

booktitle = "IET Conference Publications|IET Conf Publ",

publisher = "Institution of Engineering and Technology ",

address = "United Kingdom",

note = "6th IET International Conference on Power Electronics, Machines and Drives, PEMD 2012 ; Conference date: 01-07-2012",

}

TY - GEN

T1 - Field correlation between electromagnetic and high flux stator core tests

AU - Bertenshaw, D. R.

AU - Smith, A. C.

PY - 2012

Y1 - 2012

N2 - In stator core interlamination insulation fault tests, there is a commonplace expectation that the Quad signal detected by EL CID is correlated to the high flux test, at the rate of 5-10 °C/100mA. Evidence to date has been supportive but inconclusive. A new opportunity has been taken to review 106 reported core fault test results from the field on turbo and hydro-generators, where both tests were conducted on the same fault. A number of normalisation corrections were proposed and applied, which resulted in the population mean trend correlation lying between 8.5-10.7 °C/100mA with a 95% confidence factor. The central quartiles embrace the 6-12 °C/100mA range, close to the expected rate.

AB - In stator core interlamination insulation fault tests, there is a commonplace expectation that the Quad signal detected by EL CID is correlated to the high flux test, at the rate of 5-10 °C/100mA. Evidence to date has been supportive but inconclusive. A new opportunity has been taken to review 106 reported core fault test results from the field on turbo and hydro-generators, where both tests were conducted on the same fault. A number of normalisation corrections were proposed and applied, which resulted in the population mean trend correlation lying between 8.5-10.7 °C/100mA with a 95% confidence factor. The central quartiles embrace the 6-12 °C/100mA range, close to the expected rate.

KW - EL CID

KW - Interlaminar insulation

KW - Stator core

U2 - 10.1049/cp.2012.0144

DO - 10.1049/cp.2012.0144

M3 - Conference contribution

SN - 9781849196161

VL - 2012

SP - P25

BT - IET Conference Publications|IET Conf Publ

PB - Institution of Engineering and Technology

CY - London

T2 - 6th IET International Conference on Power Electronics, Machines and Drives, PEMD 2012

Y2 - 1 July 2012

ER -

Field correlation between electromagnetic and high flux stator core tests

Abstract

Conference

Keywords

UN SDGs

Access to Document

Fingerprint

Cite this