This part of IEC 60034, which is a technical specification, provides a common basis for<\/p>\n
measuring techniques and instruments;<\/p>\n<\/li>\n
the arrangement of the installation;<\/p>\n<\/li>\n
normalization and sensitivity assessment;<\/p>\n<\/li>\n
measuring procedures;<\/p>\n<\/li>\n
noise reduction;<\/p>\n<\/li>\n
the documentation of results;<\/p>\n<\/li>\n
the interpretation of results;<\/p>\n<\/li>\n<\/ul>\n
with respect to partial discharge on-line measurements on the stator winding insulation of non-converter driven rotating electrical machines with rated voltage of 3 kV and up. This technical specification covers PD measur ing systems and methods detecting electrical PD signals. The same measuring devices and procedures can also be used to detect electrical sparking and ar cing phenomena.<\/p>\n
\nNOTE The main differences between on-line measurements and o ff-line measurements are due to a different voltage distribution along the winding and various thermal and mechanical effects related to the operation, like vibration, contact arcing or temperature gradients between stator copper and stator iron core. Furthermore, especially for hydrogen-cooled machines the gas and the gas pressure is different for off – and on-line PD measurements.<\/p>\n<\/blockquote>\n
PDF Catalog<\/h4>\n
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\n PDF Pages<\/th>\n PDF Title<\/th>\n<\/tr>\n \n 4<\/td>\n CONTENTS <\/td>\n<\/tr>\n \n 7<\/td>\n FOREWORD <\/td>\n<\/tr>\n \n 9<\/td>\n INTRODUCTION <\/td>\n<\/tr>\n \n 11<\/td>\n 1 Scope
2 Normative references
3 Terms and definitions <\/td>\n<\/tr>\n\n 13<\/td>\n 4 Nature of PD in rotating machines
4.1 Basics of PD <\/td>\n<\/tr>\n\n 14<\/td>\n 4.2 Types of PD in rotating machines
4.2.1 General
4.2.2 Internal discharges <\/td>\n<\/tr>\n\n 15<\/td>\n 4.2.3 Slot discharges
4.2.4 Discharges in the end-winding
4.2.5 Conductive particles <\/td>\n<\/tr>\n\n 16<\/td>\n 4.3 Arcing and sparking
4.3.1 General
4.3.2 Arcing at broken conductors
4.3.3 Vibration sparking
5 Noise and disturbance
5.1 General
5.2 Noise and disturbance sources <\/td>\n<\/tr>\n\n 17<\/td>\n 5.3 Frequency domain separation <\/td>\n<\/tr>\n \n 18<\/td>\n 5.4 Time domain separation
Figures
Figure 1 \u2013 Time domain disturbance separation by time of pulse arrival <\/td>\n<\/tr>\n\n 19<\/td>\n 5.5 Combination of frequency and time domain separation
5.6 Gating
Figure 2 \u2013 Combined time and frequency domain disturbance separation (TF-map) <\/td>\n<\/tr>\n\n 20<\/td>\n 5.7 Pattern recognition separation
6 Measuring techniques and instruments
6.1 General <\/td>\n<\/tr>\n\n 21<\/td>\n 6.2 Pulse propagation in windings
6.3 Signal transfer characteristics <\/td>\n<\/tr>\n\n 23<\/td>\n Figure 3 \u2013 Idealized frequency response of a PD pulse at the PD source and at the machine terminals; frequency response of different PD measuring systems: a) low frequency range, b) high frequency range, c) very high frequency range <\/td>\n<\/tr>\n \n 24<\/td>\n 6.4 PD sensors
6.4.1 General
6.4.2 Design of PD sensors <\/td>\n<\/tr>\n\n 25<\/td>\n 6.4.3 Reliability of PD sensors
6.5 PD measuring device
6.6 PD measuring parameters
6.6.1 General
6.6.2 PD magnitude <\/td>\n<\/tr>\n\n 26<\/td>\n 6.6.3 Additional PD parameters
7 Installation of PD on-line measuring systems
7.1 General
7.2 Installation of PD sensors <\/td>\n<\/tr>\n\n 27<\/td>\n 7.3 Outside access point and cabling <\/td>\n<\/tr>\n \n 28<\/td>\n 7.4 Installation of the PD measuring device
7.5 Installation of operational data acquisition systems <\/td>\n<\/tr>\n\n 29<\/td>\n 8 Normalization of measurements
8.1 General
8.2 Normalization for low frequency systems
8.2.1 General
8.2.2 Normalization procedure <\/td>\n<\/tr>\n\n 30<\/td>\n Figure 4 \u2013 Measuring object, during normalization <\/td>\n<\/tr>\n \n 31<\/td>\n 8.3 Normalization \/ sensitivity check for high and very high frequency systems
8.3.1 Specification for the electronic pulse generation
Figure 5 \u2013 Arrangement for sensitivity check <\/td>\n<\/tr>\n\n 32<\/td>\n 8.3.2 Configuration of the machine
8.3.3 Sensitivity check
9 Measuring procedures
9.1 General <\/td>\n<\/tr>\n\n 33<\/td>\n 9.2 Machine operating parameters
9.3 Baseline measurement
9.3.1 General
9.3.2 Recommended test procedure <\/td>\n<\/tr>\n\n 34<\/td>\n 9.4 Periodic on-line PD measurements
Figure 6 \u2013 Recommended test procedure with consecutive load and temperature conditions <\/td>\n<\/tr>\n\n 35<\/td>\n 9.5 Continuous on-line PD measurements
10 Visualization of measurements
10.1 General
10.2 Visualization of trending parameters <\/td>\n<\/tr>\n\n 36<\/td>\n 10.3 Visualization of PD patterns
Figure 7 \u2013 Example of visualization of trending parameters <\/td>\n<\/tr>\n\n 37<\/td>\n Figure 8 \u2013 Example of a \u03a6-q-n partial discharge pattern,with colour code for the pulse number H(n)\/s <\/td>\n<\/tr>\n \n 38<\/td>\n Figure 9 \u2013 Example of a three phase, phase shifted \u03a6-q-n plot <\/td>\n<\/tr>\n \n 39<\/td>\n 11 Interpretation of on-line measurements
11.1 General
11.2 Evaluation of basic trend parameters <\/td>\n<\/tr>\n\n 40<\/td>\n 11.3 Evaluation of PD patterns
11.3.1 General
11.3.2 PD pattern interpretation <\/td>\n<\/tr>\n\n 41<\/td>\n 11.4 Effect of machine operating factors
11.4.1 General
11.4.2 Machine operating factors
11.4.3 Steady state load conditions <\/td>\n<\/tr>\n\n 42<\/td>\n 11.4.4 Transient load conditions <\/td>\n<\/tr>\n \n 43<\/td>\n 12 Test report <\/td>\n<\/tr>\n \n 46<\/td>\n Annex A (informative) Examples of Phase Resolved Partial Discharge (PRPD) pattern
Figure A.1 \u2013 Stylized examples of PD phase resolved patterns <\/td>\n<\/tr>\n\n 47<\/td>\n Figure A.2 \u2013 Example of internal void discharges PRPD pattern, recorded during laboratory simulation <\/td>\n<\/tr>\n \n 48<\/td>\n Figure A.3 \u2013 Example of internal delamination PRPD pattern,recorded during laboratory simulation <\/td>\n<\/tr>\n \n 49<\/td>\n Figure A.4 \u2013 Example of delamination between conductorand insulation PRPD pattern, recorded during laboratory simulation
Figure A.5 \u2013 Slot partial discharges activity and corresponding PRPD pattern,recorded during laboratory simulation <\/td>\n<\/tr>\n\n 50<\/td>\n Figure A.6 \u2013 Corona activity at the S\/C and stress grading coating,and corresponding PRPD pattern, recorded during laboratory simulation
Figure A.7 \u2013 Surface tracking activity along the end arm and correspondingPRPD pattern, recorded during laboratory simulation <\/td>\n<\/tr>\n\n 51<\/td>\n Figure A.8 \u2013 Gap type discharge activities and corresponding PRPD patterns,recorded during laboratory simulations <\/td>\n<\/tr>\n \n 52<\/td>\n Figure A.9 \u2013 Example of internal void discharges PRPD pattern,recorded on-line <\/td>\n<\/tr>\n \n 53<\/td>\n Figure A.10 \u2013 Example of internal delamination PRPD pattern, recorded on-line
Figure A.11 \u2013 Example of delamination between conductor andinsulation PRPD pattern, recorded on-line <\/td>\n<\/tr>\n\n 54<\/td>\n Figure A.12 \u2013 Degradation caused by slot partial discharges activityand corresponding PRPD pattern recorded on-line <\/td>\n<\/tr>\n \n 55<\/td>\n Figure A.13 \u2013 Degradation caused by corona activity at the S\/C andstress grading coating and corresponding PRPD pattern, recorded on-line
Figure A.14 \u2013 Surface tracking activity along the end arm andcorresponding PRPD pattern, recorded on-line <\/td>\n<\/tr>\n\n 56<\/td>\n Figure A.15 \u2013 Degradation caused by gap type dischargesand corresponding PRPD patterns, recorded on-line
Figure A.16 \u2013 PRPD pattern recorded on-line, illustrating multiple PD sources <\/td>\n<\/tr>\n\n 57<\/td>\n Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Rotating electrical machines – On-line partial discharge measurements on the stator winding insulation of rotating electrical machines<\/b><\/p>\n
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\n Published By<\/td>\n Publication Date<\/td>\n Number of Pages<\/td>\n<\/tr>\n \n BSI<\/b><\/a><\/td>\n 2012<\/td>\n 60<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":417445,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[528,2641],"product_tag":[],"class_list":{"0":"post-417436","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-29-160-01","7":"product_cat-bsi","9":"first","10":"instock","11":"sold-individually","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/417436","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/417445"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=417436"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=417436"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=417436"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}