Instruments and software used for measurement in high-voltage and high-current tests - Part 3: Requirements for hardware for tests with alternating and direct voltages and currents

IEC 61083-3:2020 is applicable to digital recording instruments used for measurements during tests with high alternating and direct voltages and currents. It specifies the measuring characteristics and calibrations required to meet the measuring uncertainties and procedures specified in the relevant IEC standards (e.g. IEC 60060-1, IEC 60060-2, IEC 60060-3, IEC 62475, IEC 61180).
This document is applicable to those digital recording instruments that will be designed and type tested according to this document.
This document
• defines performance requirements for digital recording instruments used during tests with alternating voltages and currents (AC) or direct voltages and currents (DC);
• specifies the necessary requirements for such instruments to ensure their suitability for use under the relevant standards;
• establishes the tests and procedures necessary to demonstrate their compliance;
• defines the terms related to digital recording instruments with recording function and access to raw data.
Examples of relevant alternating and direct voltages and currents to be measured are listed in Annex D.
This International Standard has the status of a horizontal standard in accordance with IEC Guide 108.

Appareils et logiciels utilisés pour les mesurages pendant les essais à haute tension et à courant élevé - Partie 3: Exigences relatives au matériel pendant les essais avec des tensions et des courants alternatifs et continus

IEC 61083-3:2020 est applicable aux instruments d'enregistrement numérique utilisés pour les mesurages pendant les essais avec des tensions et des courants alternatifs et continus élevés. Elle spécifie les caractéristiques de mesure et les étalonnages exigés pour satisfaire aux incertitudes de mesure et aux procédures spécifiées dans les normes IEC pertinentes (par exemple IEC 60060-1, IEC 60060-2, IEC 60060-3, IEC 62475, IEC 61180).
Le présent document s'applique aux instruments d'enregistrement numérique qui sont conçus et soumis aux essais conformément au présent document.
Le présent document
• définit les exigences de performance pour les instruments d'enregistrement numérique utilisés pendant les essais avec des tensions et des courants alternatifs ou des tensions et des courants continus;
• spécifie les exigences nécessaires pour ces instruments afin de garantir leur aptitude à être utilisés selon les normes pertinentes;
• établit les essais et les procédures nécessaires pour démontrer leur conformité;
• définit les termes relatifs aux instruments d'enregistrement numérique avec fonction d'enregistrement et accès aux données brutes.
Des exemples de tensions et de courants alternatifs et continus pertinents à mesurer sont énumérés à l’Annexe D.
La présente Norme internationale a le statut d'une norme horizontale conformément au Guide 108 de l'IEC.

General Information

Status
Published
Publication Date
24-Nov-2020
Current Stage
PPUB - Publication issued
Completion Date
25-Nov-2020
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IEC 61083-3
Edition 1.0 2020-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Instruments and software used for measurement in high-voltage and
high‑current tests –
Part 3: Requirements for hardware for tests with alternating and direct voltages
and currents
Appareils et logiciels utilisés pour les mesurages pendant les essais à haute
tension et à courant élevé –

Partie 3: Exigences relatives au matériel pendant les essais avec des tensions et

des courants alternatifs et continus
IEC 61083-3:2020-11(en-fr)
---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
IEC 61083-3
Edition 1.0 2020-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Instruments and software used for measurement in high-voltage and
high‑current tests –

Part 3: Requirements for hardware for tests with alternating and direct voltages

and currents
Appareils et logiciels utilisés pour les mesurages pendant les essais à haute
tension et à courant élevé –
Partie 3: Exigences relatives au matériel pendant les essais avec des tensions
et des courants alternatifs et continus
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 17.220.20; 19.080 ISBN 978-2-8322-9037-8

Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 3 ----------------------
– 2 – IEC 61083-3:2020 © IEC 2020
CONTENTS

FOREWORD ........................................................................................................................... 4

INTRODUCTION ..................................................................................................................... 6

1 Scope .............................................................................................................................. 7

2 Normative references ...................................................................................................... 7

3 Terms and definitions ...................................................................................................... 8

3.1 Digital recording instruments ................................................................................... 8

3.2 Rated values ........................................................................................................... 9

3.3 Factors ................................................................................................................... 9

3.4 Dynamic performance ............................................................................................. 9

3.5 Uncertainties......................................................................................................... 11

3.6 Tests .................................................................................................................... 12

4 Operating conditions ...................................................................................................... 12

5 Calibration and test methods ......................................................................................... 13

5.1 Applicability .......................................................................................................... 13

5.2 Qualification of digital recording instruments ......................................................... 13

5.3 Requirements for reference generators ................................................................. 13

5.4 Available methods for qualification of digital recording instruments ....................... 13

5.5 Calibration ............................................................................................................ 14

5.6 Alternative test methods ....................................................................................... 14

5.6.1 General ......................................................................................................... 14

5.6.2 Test of the rise time, step response ............................................................... 14

5.6.3 Internal noise level ........................................................................................ 14

5.6.4 Interference test ............................................................................................ 14

5.6.5 Reading rate .................................................................................................. 14

5.7 Uncertainty contribution ........................................................................................ 15

5.8 Input impedance ................................................................................................... 15

6 Requirements for AC and DC measurements ................................................................. 15

6.1 Requirements for digital recording instruments used in approved measuring

systems ................................................................................................................ 15

6.2 Individual requirements ......................................................................................... 15

6.2.1 General ......................................................................................................... 15

6.2.2 Scale factor ................................................................................................... 15

6.2.3 Sampling rate ................................................................................................ 15

6.2.4 Rated resolution ............................................................................................ 16

6.2.5 Rise time (bandwidth) .................................................................................... 16

6.2.6 Noise level ..................................................................................................... 16

6.2.7 Interference ................................................................................................... 16

6.2.8 Non-linearity of amplitude .............................................................................. 16

6.2.9 Record length of digital recording instruments ............................................... 16

6.3 Requirements for digital recording instruments used in reference measuring

systems ................................................................................................................ 16

6.4 Tests .................................................................................................................... 17

6.4.1 General ......................................................................................................... 17

6.4.2 Type tests ...................................................................................................... 17

6.4.3 Routine tests ................................................................................................. 17

6.4.4 Performance tests ......................................................................................... 17

6.4.5 Performance checks ...................................................................................... 18

---------------------- Page: 4 ----------------------
IEC 61083-3:2020 © IEC 2020 – 3 –

7 Uncertainty contributions for complete measuring systems ............................................ 18

8 Record of performance .................................................................................................. 18

(normative) Electromagnetic interference in high-voltage and high-current

laboratories and test fields .................................................................................................... 19

A.1 General ................................................................................................................. 19

A.2 Precautions ........................................................................................................... 19

A.2.1 Electromagnetic shielding .............................................................................. 19

A.2.2 Reduction of conducted interference from the supply line .............................. 19

A.2.3 Reduction of interference on the signal line ................................................... 19

A.2.4 Signal transmission by optical means ............................................................ 20

A.3 Tests with transient induced electromagnetic fields ............................................... 20

A.4 Tests with current injection ................................................................................... 20

(informative) Electromagnetic interference in high-voltage and high-current

laboratories and test fields – Recommendations for digital recording instruments ................ 22

(informative) Procedure to determine the non-linearity of amplitude of

sampling instruments ............................................................................................................ 24

(informative) Examples and considerations ............................................................ 26

D.1 Suggested requirements for digital recording instruments for AC and DC

voltage measurements .......................................................................................... 26

D.1.1 Test cases ..................................................................................................... 26

D.1.2 Background ................................................................................................... 27

D.1.3 Recommendations for digital recording instruments for AC testing (up to

60 Hz without consideration of harmonics) ..................................................... 27

D.1.4 Recommendations for digital recording instruments for DC testing

(without consideration of ripple) ..................................................................... 27

D.1.5 Recommendations for digital recording instruments for AC and DC
testing under consideration of harmonics or superimposed or combined

voltages ......................................................................................................... 27

D.2 Examples of relevant voltage and current characteristics to be measured ............. 27

D.3 Determination of the necessary rise time of instruments ....................................... 29

D.4 Considerations regarding the large variety of AC and DC measurements .............. 30

Bibliography .......................................................................................................................... 31

Figure 1 – Integral non-linearity s(k) at code k ....................................................................... 10

Figure 2 – Non-linearity d(k) and code bin width w(k) under DC conditions ............................ 11

Figure A.1 – Application of electric and magnetic fields......................................................... 20

Figure A.2 – Current injection into the shield of the cable ..................................................... 21

Figure C.1 – Digitalization of a sinusoidal waveform with a 4 bit A/D converter ..................... 24

Figure C.2 – Ideal code distribution of a sinusoidal waveform digitized by a 4 bit A/D

converter .............................................................................................................................. 24

Figure C.3 – Example of a non-ideal measurement of ideal sinusoidal waveform .................. 25

Figure C.4 – Example of the determination of the differential non-linearity ............................ 25

Table 1 – Operating conditions ............................................................................................. 13

Table 2 – Tests required for digital recording instruments ..................................................... 17

Table B.1 – Increased immunity levels suggested for digital recording instruments

used in high-voltage environments ........................................................................................ 23

Table D.1 – Relevant voltages and currents .......................................................................... 28

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– 4 – IEC 61083-3:2020 © IEC 2020
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
INSTRUMENTS AND SOFTWARE USED FOR MEASUREMENT
IN HIGH-VOLTAGE AND HIGH-CURRENT TESTS –
Part 3: Requirements for hardware for tests with alternating
and direct voltages and currents
FOREWORD

1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising

all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international

co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and

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Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.

2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international

consensus of opinion on the relevant subjects since each technical committee has representation from all

interested IEC National Committees.

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Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any

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Publications.

8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is

indispensable for the correct application of this publication.

9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent

rights. IEC shall not be held responsible for identifying any or all such patent rights.

International Standard IEC 61083-3 has been prepared by IEC technical committee 42: High-

voltage and high-current test techniques.
The text of this International Standard is based on the following documents:
FDIS Report on voting
42/380/FDIS 42/387/RVD

Full information on the voting for the approval of this International Standard can be found in the

report on voting indicated in the above table.

This document has been drafted in accordance with the ISO/IEC Directives, Part 2.

---------------------- Page: 6 ----------------------
IEC 61083-3:2020 © IEC 2020 – 5 –

A list of all parts in the IEC 61083 series, published under the general title Instruments and

software used for measurement in high-voltage and high-current tests, can be found on the IEC

website.

Future standards in this series will carry the new general title as cited above. Titles of existing

standards in this series will be updated at the time of the next edition.

The committee has decided that the contents of this document will remain unchanged until the

stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to

the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.

IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates

that it contains colours which are considered to be useful for the correct understanding

of its contents. Users should therefore print this document using a colour printer.

---------------------- Page: 7 ----------------------
– 6 – IEC 61083-3:2020 © IEC 2020
INTRODUCTION

The electric power industry requires standardized tools to provide confidence in testing results,

and to prove equivalence between tests performed in different laboratories and test fields.

This part of IEC 61083 specifies requirements for the performance of digital recording

instruments used for tests with alternating and direct voltages and currents.

The intention of this document is to provide recommendations on the digital recording

instruments to be used in tests with alternating and direct voltages and currents.

Digital recording instruments are considered as black boxes (including hardware, firmware, and

software). They are characterized for their intended application by physical calibration with the

waveforms needed for that application.

This document does not apply to simple analogue or digital meters that do not have recording

capability.
---------------------- Page: 8 ----------------------
IEC 61083-3:2020 © IEC 2020 – 7 –
INSTRUMENTS AND SOFTWARE USED FOR MEASUREMENT
IN HIGH-VOLTAGE AND HIGH-CURRENT TESTS –
Part 3: Requirements for hardware for tests with alternating
and direct voltages and currents
1 Scope

This part of IEC 61083 is applicable to digital recording instruments used for measurements

during tests with high alternating and direct voltages and currents. It specifies the measuring

characteristics and calibrations required to meet the measuring uncertainties and procedures

specified in the relevant IEC standards (e.g. IEC 60060-1, IEC 60060-2, IEC 60060-3,

IEC 62475, IEC 61180).

This document is applicable to those digital recording instruments that will be designed and

type tested according to this document.
This document

• defines performance requirements for digital recording instruments used during tests with

alternating voltages and currents (AC) or direct voltages and currents (DC);

• specifies the necessary requirements for such instruments to ensure their suitability for use

under the relevant standards;

• establishes the tests and procedures necessary to demonstrate their compliance;

• defines the terms related to digital recording instruments with recording function and access

to raw data.

NOTE Examples of relevant alternating and direct voltages and currents to be measured are listed in Annex D.

This International Standard has the status of a horizontal standard in accordance with

IEC Guide 108.
2 Normative references

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements of this document. For dated references, only the edition cited applies.

For undated references, the latest edition of the referenced document (including any

amendments) applies.
IEC 60060-2, High-voltage test techniques – Part 2: Measuring systems

IEC 61180, High-voltage test techniques for low-voltage equipment – Definitions, test and

procedure requirements, test equipment

IEC 62475, High-current test techniques – Definitions and requirements for test currents and

measuring systems

ISO/IEC Guide 98-3:2008, Uncertainty of measurement – Part 3: Guide to the expression of

uncertainty in measurement (GUM:1995)
---------------------- Page: 9 ----------------------
– 8 – IEC 61083-3:2020 © IEC 2020
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.

ISO and IEC maintain terminological databases for use in standardization at the following

addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.1 Digital recording instruments
3.1.1
approved instrument

measuring device that is shown to comply with the requirements set out in IEC 61083-3

3.1.2
digital recording instrument
device with digital output capability of the recorded input

Note 1 to entry: This definition includes digital recorders, digital oscilloscopes, digital peak voltmeters and other

digital recording instruments if applicable.

Note 2 to entry: The waveform of the digital record is usually displayed on a screen, plotted or printed. This process

may change the appearance of the waveform due to the processing involved.
3.1.3
assigned measurement range

range of input voltage for which the digital recording instrument can be used within the

uncertainty limits given in IEC 61083-3
3.1.4
output

displayed (in any way) value of a digital recording instrument at a specific instant or the

numerical value of a digital recording instrument recorded at a specific instant
3.1.5
full-scale deflection

minimum input value, which produces the nominal maximum output of the digital recording

instrument in the specified range
3.1.6
offset
output of a digital recording instrument for zero input
3.1.7
raw data

original record of sampled and quantized information obtained when a digital recording

instrument converts an analogue signal into a digital form, with the correction of the output for

offset and multiplying the record by a constant factor being permitted
3.1.8
test duration
range of a time interval in which the measurement is done
3.1.9
reading rate

rate with which the instrument displays or stores the readings of the measured AC or DC voltage

or current
---------------------- Page: 10 ----------------------
IEC 61083-3:2020 © IEC 2020 – 9 –

Note 1 to entry: In sampling instruments, readings are calculated e.g. by averaging (DC) or by calculating the RMS

value (AC) of several samples.
3.2 Rated values
3.2.1
rated resolution

reciprocal of two to the power of the rated number of bits N of the A/D converter, defined as

r = 2
3.2.2
sampling rate
number of samples taken per unit of time
3.2.3
record length

duration of the record expressed either in a time unit or as the total number of samples

3.2.4
warm-up time

time interval from when an instrument is first switched on to when an instrument meets

operational requirements
3.3 Factors
3.3.1
scale factor

factor by which the output corrected for offset is multiplied in order to determine the measured

value of the input quantity

Note 1 to entry: Scale factor includes the ratio of any built-in or external attenuator and is determined by calibration.

3.3.2
static scale factor
scale factor for a direct voltage or a direct current input
3.3.3
non-linearity of amplitude

deviation of the actual output of a digital recording instrument from the nominal value, which is

determined by dividing the input voltage or input current by the scale factor

Note 1 to entry: The static non-linearity for a DC input voltage or current is different from the non-linearity under

dynamic conditions.
3.3.4
peak factor

numerical value calculated from the peak value divided by the RMS value of a measurement

3.4 Dynamic performance
3.4.1
integral non-linearity
s(k)

difference between corresponding points on the measured quantization characteristic and on

the ideal quantization characteristic that is based on the static scale factor
SEE: Figure 1.
---------------------- Page: 11 ----------------------
– 10 – IEC 61083-3:2020 © IEC 2020
3.4.2
quantization characteristic

characteristic showing the relationship between the output of the digital recording instrument

and the direct voltage on the input which pro
...

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