{"id":255099,"date":"2024-10-19T16:51:40","date_gmt":"2024-10-19T16:51:40","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-61869-62016\/"},"modified":"2024-10-25T12:18:04","modified_gmt":"2024-10-25T12:18:04","slug":"bs-en-61869-62016","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-61869-62016\/","title":{"rendered":"BS EN 61869-6:2016"},"content":{"rendered":"

IEC 61869-6:2016(E) is a product family standard and covers only additional general requirements for low-power instrument transformers (LPIT) used for a.c. applications having rated frequencies from 15 Hz to 100 Hz covering MV, HV and EHV or used for d.c. applications. This product standard is based on IEC 61869-1:2007, in addition to the relevant product specific standard. This part of IEC 61869 does not cover the specification for the digital output format of instrument transformers. This part of IEC 61869 defines the errors in case of analogue or digital output. The other characteristics of the digital interface for instrument transformers are standardised in IEC 61869-9 as an application of the standards, the IEC 61850 series, which details layered substation communication architecture. This part of IEC 61869 considers additional requirements concerning bandwidth. General Requirements; however, the reader is encouraged to use its most recent edition. This first edition of IEC 61869-6 cancels and replaces the relevant parts of IEC 60044-7, published in 1999, and of IEC 60044-8, published in 2002. This publication is to be read in conjunction with \/2<\/p>\n

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PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
9<\/td>\nCONTENTS <\/td>\n<\/tr>\n
13<\/td>\nFOREWORD <\/td>\n<\/tr>\n
17<\/td>\n1 Scope
2 Normative reference
Figures
Figure\u00a0601 \u2013 General block diagram of a single-phase LPIT <\/td>\n<\/tr>\n
20<\/td>\n3 Terms and definitions
3.1 General terms and definitions <\/td>\n<\/tr>\n
24<\/td>\n3.2 Terms and definitions related to dielectric ratings and voltages
3.3 Terms and definitions related to current ratings <\/td>\n<\/tr>\n
26<\/td>\nFigure\u00a0602 \u2013 Primary time constant Tp <\/td>\n<\/tr>\n
27<\/td>\nFigure\u00a0603 \u2013 Duty cycles, single energization <\/td>\n<\/tr>\n
28<\/td>\n3.4 Terms and definitions related to accuracy
Figure\u00a0604 \u2013 Duty cycles, double energization <\/td>\n<\/tr>\n
33<\/td>\n3.5 Terms and definitions related to other ratings
3.7 Index of abbreviations and symbols <\/td>\n<\/tr>\n
35<\/td>\n4 Normal and special service conditions
4.2 Normal service conditions
4.2.3 Vibrations or earth tremors
4.2.601 Partially outdoor LPIT
5 Ratings
5.3 Rated insulation levels and voltages
5.3.5 Insulation requirements for secondary terminals
5.3.601 Rated auxiliary power supply voltage (Uar)
Tables
Table 601 \u2013 Secondary terminal and low voltage component withstand capability <\/td>\n<\/tr>\n
36<\/td>\n5.4 Rated frequency
5.5 Rated output
5.5.601 Rated burden (Rbr)
5.5.602 Standard values for the rated delay time (tdr) <\/td>\n<\/tr>\n
37<\/td>\n5.6 Rated accuracy class
6 Design and construction
6.7 Mechanical requirements
6.11 Electromagnetic compatibility (EMC)
6.11.3 Requirements for immunity
Table\u00a0602 \u2013 Immunity requirements and tests <\/td>\n<\/tr>\n
39<\/td>\n6.11.4 Requirement for transmitted overvoltages
6.11.601 Emission requirements <\/td>\n<\/tr>\n
40<\/td>\n6.13 Markings
6.601 Requirements for optical transmitting system and optical output link
6.601.1 General
6.601.2 Optical connectors
6.601.3 Fibre optic terminal box
6.601.4 Total cable length
6.602 Requirements for electrical transmitting system and electrical wires for output link
6.602.1 Connectors <\/td>\n<\/tr>\n
41<\/td>\n6.602.2 Earthing of the output cable
6.603 Signal-to-noise ratio
Table 603 \u2013 Connectors <\/td>\n<\/tr>\n
42<\/td>\n6.604 Failure detection and maintenance announcement
6.605 Operability
6.606 Reliability and dependability
6.607 Vibrations <\/td>\n<\/tr>\n
43<\/td>\n7 Tests
7.1 General
7.1.2 List of tests
Table 10 \u2013 List of tests <\/td>\n<\/tr>\n
44<\/td>\n7.2 Type tests
7.2.1 General
7.2.2 Temperature-rise test
7.2.3 Impulse voltage withstand test on primary terminals
7.2.5 Electromagnetic compatibility (EMC) tests <\/td>\n<\/tr>\n
45<\/td>\nFigure 605 \u2013 Examples of subassembly subjected to EMC tests \u2013Usual structure used in HV AIS applications <\/td>\n<\/tr>\n
46<\/td>\nFigure 606 \u2013 Examples of subassembly subjected to EMC tests \u2013Usual structure used in MV applications
Figure 607 \u2013 Examples of subassembly subjected to EMC tests \u2013Usual structure used in HV GIS applications <\/td>\n<\/tr>\n
48<\/td>\n7.2.6 Test for accuracy <\/td>\n<\/tr>\n
49<\/td>\nFigure 608 \u2013 Temperature cycle accuracy test <\/td>\n<\/tr>\n
50<\/td>\n7.2.601 Low-voltage component voltage withstand test <\/td>\n<\/tr>\n
51<\/td>\n7.3 Routine tests
7.3.1 Power-frequency voltage withstand tests on primary terminals <\/td>\n<\/tr>\n
52<\/td>\n7.3.4 Power-frequency voltage withstand tests on secondary terminals
7.3.5 Test for accuracy
7.3.601 Power-frequency voltage withstand test for low-voltage components
7.4 Special tests
7.4.601 Vibration tests <\/td>\n<\/tr>\n
53<\/td>\n601 Information to be given with enquiries, tenders and orders
601.1 Designation
601.2 Dependability <\/td>\n<\/tr>\n
54<\/td>\nAnnex\u00a06A (normative)LPIT frequency response and accuracy requirements for harmonics
6A.1 General
6A.2 Requirements for noise and distortion
6A.3 Anti-aliasing filter requirements for LPIT using digital data processing <\/td>\n<\/tr>\n
55<\/td>\nFigure 6A.1 \u2013 Digital data acquisition system example
Table\u00a06A.1 \u2013 Anti-aliasing filter <\/td>\n<\/tr>\n
56<\/td>\n6A.4 LPIT accuracy requirements for harmonics and low frequencies
6A.4.1 General
6A.4.2 Measuring accuracy classes
Figure 6A.2 \u2013 Frequency response mask for metering accuracy class\u00a01(fr = 60\u00a0Hz, fs = 4\u00a0800\u00a0Hz) <\/td>\n<\/tr>\n
57<\/td>\n6A.4.3 Accuracy class extension for quality metering and low bandwidth d.c. applications
Table 6A.2 \u2013 Measuring accuracy classes
Table 6A.3 \u2013 Accuracy classes extension for quality meteringand low bandwidth d.c. applications <\/td>\n<\/tr>\n
58<\/td>\n6A.4.4 Protective accuracy classes
6A.4.5 Special high bandwidth protection accuracy class
Table 6A.4 \u2013 Accuracy classes extension for high bandwidth d.c. applications
Table 6A.5 \u2013 Protective accuracy classes <\/td>\n<\/tr>\n
59<\/td>\n6A.4.6 Special accuracy classes for d.c. coupled low-power voltage transformers
6A.5 Tests for accuracy versus harmonics and low frequencies
Table 6A.6 \u2013 Accuracy classes for special high bandwidth protection
Table 6A.7 \u2013 Accuracy classes for special d.c. coupled low-power voltage transformers <\/td>\n<\/tr>\n
60<\/td>\n6A.6 Test arrangement and test circuit
6A.6.1 Test for accuracy for harmonics and low frequencies
6A.6.2 Type test for proper anti-aliasing
Table 6A.8 \u2013 Accuracy classes for harmonics <\/td>\n<\/tr>\n
62<\/td>\nAnnex\u00a06B (informative)Transient performances of low-power current transformers
6B.1 General
6B.2 Short-circuit currents in power systems <\/td>\n<\/tr>\n
63<\/td>\nFigure 6B.1 \u2013 Illustration of a fault in a power system
Figure 6B.2 \u2013 Short-circuit current a.c. and d.c. components <\/td>\n<\/tr>\n
64<\/td>\nFigure 6B.3 \u2013 Symmetric fault current
Figure 6B.4 \u2013 Asymmetric fault current <\/td>\n<\/tr>\n
65<\/td>\n6B.3 Conventional current transformer equivalent circuit
Figure 6B.5 \u2013 Equivalent electrical circuit of a conventional CT <\/td>\n<\/tr>\n
66<\/td>\nFigure 6B.6 \u2013 Flux-current characteristic for a conventional CTwithout remanence representation <\/td>\n<\/tr>\n
67<\/td>\n6B.4 Types of current transformers
6B.4.1 Types of conventional CTs
Figure 6B.7 \u2013 Representation of hysteresis and remanent flux for a conventional CT <\/td>\n<\/tr>\n
68<\/td>\n6B.4.2 Types of low-power current transformers
Table 6B.1 \u2013 Protective CTs <\/td>\n<\/tr>\n
69<\/td>\n6B.5 Transient performance of current transformers
6B.5.1 Transient performance of conventional current transformers
Figure 6B.8 \u2013 Comparison of flux-current characteristics for gapped and gapless CTs <\/td>\n<\/tr>\n
70<\/td>\n6B.5.2 Transient performance of low-power current transformers
Figure 6B.9 \u2013 Secondary current distorted due to the CT saturation
Figure 6B.10 \u2013 AC component for non-saturated and saturated CT <\/td>\n<\/tr>\n
71<\/td>\n6B.6 Summary <\/td>\n<\/tr>\n
72<\/td>\nAnnex\u00a06C (informative)Transient performances of low-power voltage transformers
6C.1 Overview
6C.2 General
6C.2.1 Defining primary and secondary voltages
6C.2.2 Normal service conditions of the network <\/td>\n<\/tr>\n
73<\/td>\n6C.2.3 Abnormal service conditions of the network
6C.2.4 Rated secondary voltages
6C.2.5 Steady-state conditions
6C.3 Transient conditions
6C.3.1 Theoretical considerations <\/td>\n<\/tr>\n
76<\/td>\nFigure 6C.1 \u2013 Schematic diagram explaining the trapped charge phenomena <\/td>\n<\/tr>\n
77<\/td>\nFigure 6C.2 \u2013 Voltages during trapped charges phenomena <\/td>\n<\/tr>\n
78<\/td>\nTable 6C.1 \u2013 Primary short circuit
Table 6C.2 \u2013 Trapped charges
Table 6C.3 \u2013 Limits of instantaneous voltage error for protective electronic voltage transformers in case of trapped charges reclose <\/td>\n<\/tr>\n
79<\/td>\nFigure 6C.3 \u2013 Modelization example of a simplified low-power voltage transformer <\/td>\n<\/tr>\n
80<\/td>\n6C.3.2 Definition of transient error
6C.3.3 Test of transient performance <\/td>\n<\/tr>\n
83<\/td>\nFigure 6C.4 \u2013 Testing arrangement for short time constant <\/td>\n<\/tr>\n
84<\/td>\nFigure 6C.5 \u2013 Testing arrangement for long time constant
Figure 6C.6 \u2013 Typical waveform of e(t) during test <\/td>\n<\/tr>\n
85<\/td>\nAnnex\u00a06D (informative)Test circuits
6D.1 Test circuits for accuracy measurements in steady state for low-power current transformers
Figure 6D.1 \u2013 Test circuit for analogue accuracy measurements in steady state <\/td>\n<\/tr>\n
86<\/td>\nFigure 6D.2 \u2013 Test circuit for analogue accuracy measurementsin steady state (alternative solution) <\/td>\n<\/tr>\n
87<\/td>\nFigure 6D.3 \u2013 Test circuit for digital accuracy measurements in steady state <\/td>\n<\/tr>\n
88<\/td>\n6D.2 Test circuits for accuracy measurements in steady state for low-power voltage transformers
Figure 6D.4 \u2013 Test circuit for analogue accuracy measurements in steady state <\/td>\n<\/tr>\n
89<\/td>\nFigure 6D.5 \u2013 Test circuit for analogue accuracy measurementsin steady state (alternative solution) <\/td>\n<\/tr>\n
90<\/td>\nFigure 6D.6 \u2013 Test circuit for digital accuracy measurements in steady state <\/td>\n<\/tr>\n
91<\/td>\nAnnex\u00a06E (informative)Graph explaining the accuracy requirements formulti-purpose low-power current transformer
Figure 6E.1 \u2013 Accuracy limits of a multi-purpose low-power current transformer <\/td>\n<\/tr>\n
92<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Instrument transformers – Additional general requirements for low-power instrument transformers<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2017<\/td>\n94<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":255104,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[285,2641],"product_tag":[],"class_list":{"0":"post-255099","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-17-220-20","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\/255099","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\/255104"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=255099"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=255099"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=255099"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}