{"id":361740,"date":"2024-10-20T01:37:23","date_gmt":"2024-10-20T01:37:23","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bsi-pd-iec-ts-628362020\/"},"modified":"2024-10-26T02:31:29","modified_gmt":"2024-10-26T02:31:29","slug":"bsi-pd-iec-ts-628362020","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bsi-pd-iec-ts-628362020\/","title":{"rendered":"BSI PD IEC TS 62836:2020"},"content":{"rendered":"

This document provides an efficient and reliable procedure to test the internal electric field in the insulating materials used for high-voltage applications, using the pressure wave propagation (PWP) method. It is suitable for a sample with homogeneous insulating materials and an electric field higher than 1 kV\/mm, but it is also dependent on the thickness of the sample and the pressure wave generator.<\/p>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
2<\/td>\nundefined <\/td>\n<\/tr>\n
4<\/td>\nCONTENTS <\/td>\n<\/tr>\n
6<\/td>\nFOREWORD <\/td>\n<\/tr>\n
8<\/td>\nINTRODUCTION <\/td>\n<\/tr>\n
9<\/td>\n1 Scope
2 Normative references
3 Terms, definitions and abbreviated terms
3.1 Terms and definitions
3.2 Abbreviated terms <\/td>\n<\/tr>\n
10<\/td>\n4 Principle of the method <\/td>\n<\/tr>\n
11<\/td>\nFigures
Figure 1 \u2013 Principle of the PWP method <\/td>\n<\/tr>\n
12<\/td>\n5 Samples
6 Electrode materials
7 Pressure pulse wave generation <\/td>\n<\/tr>\n
13<\/td>\n8 Set-up of the measurement
Figure 2 \u2013 Measurement set-up for the PWP method
Figure 3 \u2013 Sample of circuit to protect the amplifier from damage by a small discharge on the sample <\/td>\n<\/tr>\n
14<\/td>\n9 Calibrating the electric field
10 Measurement procedure <\/td>\n<\/tr>\n
15<\/td>\n11 Data processing for the experimental measurement <\/td>\n<\/tr>\n
16<\/td>\n12 Measurement examples
12.1 Samples
12.2 Pressure pulse generation
12.3 Calibration of sample and signal
Figure 4 \u2013 Measured current signal under \u20135,8 kV <\/td>\n<\/tr>\n
17<\/td>\n12.4 Testing sample and experimental results
Figure 5 \u2013 First measured current signal (< 1 min)
Figure 6 \u2013 Measured current signal under \u201346,4 kV, after 1,5 h under high voltage <\/td>\n<\/tr>\n
18<\/td>\nFigure 7 \u2013 Measured current signal without applied voltage, after 1,5 h under high voltage
Figure 8 \u2013 Internal electric field distribution under \u20135,8 kV <\/td>\n<\/tr>\n
19<\/td>\nFigure 9 \u2013 Internal electric field distribution under \u201346,4 kV, at the initial state
Figure 10 \u2013 Internal electric field distribution under \u201346,4 kV, after 1,5 h under high voltage <\/td>\n<\/tr>\n
20<\/td>\nFigure 11 \u2013 Internal electric field distribution without applied voltage after 1,5 h under high voltage <\/td>\n<\/tr>\n
21<\/td>\nAnnex A (informative)Preconditional method of the original signal for the PWP method
A.1 Simple integration limitation
Figure A.1 \u2013 Comparison between practical and perfect pressure pulses <\/td>\n<\/tr>\n
22<\/td>\nA.2 Analysis of the resiliency effect and correction procedure
Figure A.2 \u2013 Original signal of the sample free of charge under moderate voltage <\/td>\n<\/tr>\n
23<\/td>\nA.3 Example of the correction procedure on a PE sample
Figure A.3 \u2013 Comparison between original and corrected reference signals with a sample free of charge under moderate voltage <\/td>\n<\/tr>\n
24<\/td>\nA.4 Estimation of the correction coefficients
Figure A.4 \u2013 Electric field in a sample under voltage with space charge calculated from original and corrected signals <\/td>\n<\/tr>\n
25<\/td>\nFigure A.5 \u2013 Geometrical characteristics of the reference signal for the correction coefficient estimation
Figure A.6 \u2013 Reference signal corrected with coefficients graphically obtained and adjusted <\/td>\n<\/tr>\n
26<\/td>\nA.5 MATLAB\u00ae code
Figure A.7 \u2013 Electric field in a sample under voltage with space charge calculated with graphically obtained coefficient and adjusted coefficient
Table A.1 \u2013 Variants of symbols used in the text <\/td>\n<\/tr>\n
28<\/td>\nAnnex B (informative)Linearity verification of the measuring system
B.1 Linearity verification
B.2 Sample conditions
B.3 Linearity verification procedure
B.4 Example of linearity verification <\/td>\n<\/tr>\n
29<\/td>\nFigure B.1 \u2013 Voltage signals obtained from the oscilloscope by the amplifier with different amplifications
Figure B.2 \u2013 Current signals induced by the sample, considering the input impedance and the amplification of the amplifier <\/td>\n<\/tr>\n
30<\/td>\nFigure B.3 \u2013 Relationship between the measured current peak of the first electrode and applied voltage <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Measurement of internal electric field in insulating materials. Pressure wave propagation method<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2020<\/td>\n32<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":361746,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[286,2641],"product_tag":[],"class_list":{"0":"post-361740","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-17-220-99","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\/361740","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\/361746"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=361740"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=361740"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=361740"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}