{"id":411008,"date":"2024-10-20T05:43:08","date_gmt":"2024-10-20T05:43:08","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-iec-61757-4-32020-2\/"},"modified":"2024-10-26T10:32:50","modified_gmt":"2024-10-26T10:32:50","slug":"bs-en-iec-61757-4-32020-2","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-iec-61757-4-32020-2\/","title":{"rendered":"BS EN IEC 61757-4-3:2020"},"content":{"rendered":"
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2<\/td>\n | undefined <\/td>\n<\/tr>\n | ||||||
7<\/td>\n | Annex ZA(normative)Normative references to international publicationswith their corresponding European publications <\/td>\n<\/tr>\n | ||||||
9<\/td>\n | English CONTENTS <\/td>\n<\/tr>\n | ||||||
12<\/td>\n | FOREWORD <\/td>\n<\/tr>\n | ||||||
14<\/td>\n | INTRODUCTION <\/td>\n<\/tr>\n | ||||||
15<\/td>\n | 1 Scope 2 Normative references 3 Terms and definitions <\/td>\n<\/tr>\n | ||||||
17<\/td>\n | 4 Components of optical current sensor using polarimetric method 4.1 General descriptions Figures Figure 1 \u2013 Measurement system using optical current sensor <\/td>\n<\/tr>\n | ||||||
18<\/td>\n | 4.2 Classification of Faraday elements Figure 2 \u2013 Construction of optical current sensor <\/td>\n<\/tr>\n | ||||||
19<\/td>\n | 5 Characteristic test 5.1 General information 5.2 Output power of light source Figure 3 \u2013 Classification of Faraday elements Tables Table 1 \u2013 List of parameters to be obtained <\/td>\n<\/tr>\n | ||||||
20<\/td>\n | 5.3 Input power of light detector 5.4 I\/O characteristics 5.4.1 General Figure 4 \u2013 Example of an optical power monitor Figure 5 \u2013 Example of the amplifying circuit of a light detector <\/td>\n<\/tr>\n | ||||||
21<\/td>\n | 5.4.2 Test method Figure 6 \u2013 I\/O characteristics of an optical current sensor <\/td>\n<\/tr>\n | ||||||
22<\/td>\n | Figure 7 \u2013 Measurement system of waveform comparison method Table 2 \u2013 Test method <\/td>\n<\/tr>\n | ||||||
23<\/td>\n | 5.4.3 Test procedure Figure 8 \u2013 Measurement system of AC bridge method <\/td>\n<\/tr>\n | ||||||
25<\/td>\n | 5.4.4 Evaluation <\/td>\n<\/tr>\n | ||||||
26<\/td>\n | 5.5 Warm-up time 5.5.1 General 5.5.2 Test method 5.5.3 Evaluation 5.6 Current conditions for obtaining each parameter Table 3 \u2013 Current conditions for obtaining each parameter <\/td>\n<\/tr>\n | ||||||
27<\/td>\n | 5.7 Input parameter dependency 5.7.1 Frequency characteristic 5.7.2 Transient characteristic <\/td>\n<\/tr>\n | ||||||
28<\/td>\n | Figure 9 \u2013 Transient characteristics of AC dedicated system <\/td>\n<\/tr>\n | ||||||
29<\/td>\n | 5.8 External environment dependency 5.8.1 Steady state temperature characteristic test Figure 10 \u2013 Transient characteristics of DC\/AC system <\/td>\n<\/tr>\n | ||||||
31<\/td>\n | Figure 11 \u2013 Configuration example of steady state temperature characteristictest and transient temperature characteristic test of sensor part Figure 12 \u2013 Example of temperature profile <\/td>\n<\/tr>\n | ||||||
32<\/td>\n | 5.8.2 Transient temperature characteristic test Figure 13 \u2013 Birefringence change during temperature change <\/td>\n<\/tr>\n | ||||||
34<\/td>\n | 5.8.3 External magnetic field test Figure 14 \u2013 Example of temperature programme <\/td>\n<\/tr>\n | ||||||
35<\/td>\n | 5.8.4 Conductor position test Figure 15 \u2013 Position of the outer conductor in the externalmagnetic field test when the Faraday element is an optical fibre <\/td>\n<\/tr>\n | ||||||
36<\/td>\n | 5.8.5 Vibration test Figure 16 \u2013 Position of the conductor in the conductorposition test when the Faraday element is an optical fibre <\/td>\n<\/tr>\n | ||||||
37<\/td>\n | Annex A (informative)Principle of optical current sensor A.1 Outline A.2 Faraday effect Figure A.1 \u2013 Faraday effect <\/td>\n<\/tr>\n | ||||||
38<\/td>\n | A.3 Types of Faraday element A.4 Conversion of the Faraday effect into an electric signal A.4.1 Detection of the Faraday effect of nonmagnetic material A.4.2 Detection of the Faraday effect of ferromagnetic material <\/td>\n<\/tr>\n | ||||||
39<\/td>\n | A.5 Current detection method A.5.1 General A.5.2 Examples of current detection method Figure A.2 \u2013 Configuration of current detection method using Faraday effect <\/td>\n<\/tr>\n | ||||||
40<\/td>\n | Figure A.3 \u2013 Basic configuration of intensity modulation type optical current sensor Figure A.4 \u2013 Configuration example of intensitymodulation type reflective optical current sensor <\/td>\n<\/tr>\n | ||||||
41<\/td>\n | Figure A.5 \u2013 Configuration example of interference type optical current sensor <\/td>\n<\/tr>\n | ||||||
42<\/td>\n | Annex B (informative) Features of optical current sensor technology <\/td>\n<\/tr>\n | ||||||
43<\/td>\n | Annex C (informative) Design considerations C.1 General information C.2 Performance restricting factors <\/td>\n<\/tr>\n | ||||||
44<\/td>\n | C.3 Procedure for determining the specifications of the equipment <\/td>\n<\/tr>\n | ||||||
46<\/td>\n | Annex D (informative) Optical current sensor output in the application of other phase magnetic fields D.1 Ampere’s circulation integral law D.2 Influence of other phase magnetic fields Figure D.1 \u2013 The law of Ampere’s circulation integral <\/td>\n<\/tr>\n | ||||||
47<\/td>\n | Figure D.2 \u2013 Image diagram of incomplete closed loop <\/td>\n<\/tr>\n | ||||||
48<\/td>\n | Annex E (informative)Measurement parameter performance table E.1 General E.2 Output power of light source E.3 Input power of light detector E.4 I\/O characteristics Table E.1 \u2013 Output power of light source Table E.2 \u2013 Input power of light detector Table E.3 \u2013 I\/O characteristics <\/td>\n<\/tr>\n | ||||||
49<\/td>\n | E.5 Frequency characteristics Table E.4 \u2013 Frequency characteristics <\/td>\n<\/tr>\n | ||||||
50<\/td>\n | E.6 Transient characteristics E.7 Steady state temperature characteristics Figure E.1 \u2013 Example of the transient characteristic Figure E.2 \u2013 Example of the temperature characteristics at current 0 <\/td>\n<\/tr>\n | ||||||
51<\/td>\n | E.8 Transient temperature characteristics Figure E.3 \u2013 Example of the temperature characteristics at rated current Figure E.4 \u2013 Example of the transient temperaturecharacteristics at input current 0 <\/td>\n<\/tr>\n | ||||||
52<\/td>\n | E.9 External magnetic field Figure E.5 \u2013 Example of the transient temperaturecharacteristics at rated current Table E.5 \u2013 External magnetic field <\/td>\n<\/tr>\n | ||||||
53<\/td>\n | E.10 Conductor positions Figure E.6 \u2013 Positions of the outer conductor Figure E.7 \u2013 Positions of the conductor in the conductor positions test Table E.6 \u2013 Conductor position <\/td>\n<\/tr>\n | ||||||
54<\/td>\n | E.11 Vibration Figure E.8 \u2013 Example of the vibration test at current 0 Figure E.9 \u2013 Example of the vibration test at rated current <\/td>\n<\/tr>\n | ||||||
55<\/td>\n | Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Fibre optic sensors – Part 4-3: Electric current measurement. Polarimetric method<\/b><\/p>\n |