Power measurement applications within electrical distribution networks and electrical installations

IEC TR 63213:2019 intends to provide state-of-the-art information on the various electricity measurement applications made in the grid (supply side) or in electrical installation (demand side), and on the related standards covering these applications.
This Technical Report does not address measurements made for specific purposes such as protection, control, automation or indication.

General Information

Status
Published
Publication Date
12-Sep-2019
Current Stage
PPUB - Publication issued
Completion Date
13-Sep-2019
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IEC TR 63213
Edition 1.0 2019-09
TECHNICAL
REPORT
colour
inside
Power measurement applications within electrical distribution networks and
electrical installations
IEC TR 63213:2019-09(en)
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---------------------- Page: 2 ----------------------
IEC TR 63213
Edition 1.0 2019-09
TECHNICAL
REPORT
colour
inside
Power measurement applications within electrical distribution networks and
electrical installations
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 17.220.20 ISBN 978-2-8322-7292-3

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

® Registered trademark of the International Electrotechnical Commission
---------------------- Page: 3 ----------------------
– 2 – IEC TR 63213:2019 © IEC 2019
CONTENTS

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

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

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

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

3 Terms, definitions and notations ...................................................................................... 7

3.1 Measurement definitions ......................................................................................... 7

3.2 Measurement applications ...................................................................................... 9

3.3 Grid definitions ....................................................................................................... 9

3.4 Stakeholder definitions.......................................................................................... 11

3.5 Notations .............................................................................................................. 13

3.5.1 Abbreviated terms ......................................................................................... 13

3.5.2 Indices ........................................................................................................... 13

4 State-of-the-art measurement applications .................................................................... 13

4.1 General ................................................................................................................. 13

4.2 Grid power quality ................................................................................................. 14

4.2.1 General ......................................................................................................... 14

4.2.2 State of the art on measurement to perform ................................................... 14

4.2.3 State of the art on standards ......................................................................... 14

4.3 Power monitoring application ................................................................................ 15

4.3.1 General ......................................................................................................... 15

4.3.2 Power monitoring application, general ........................................................... 15

4.3.3 Power monitoring application, demand side power quality.............................. 16

4.4 Billing application .................................................................................................. 17

4.4.1 General ......................................................................................................... 17

4.4.2 State of the art on measurement to perform ................................................... 18

4.4.3 State of the art on standards ......................................................................... 18

4.5 Energy management application ........................................................................... 19

4.5.1 General ......................................................................................................... 19

4.5.2 Energy management application, cost management....................................... 19

4.5.3 Energy management application, energy efficiency ........................................ 20

Annex A (informative) Example of electrical installation for a mall ........................................ 22

Annex B (informative) Explanation about measurements performed by PQIs

(IEC 62586), PMDs (IEC 61557-12) and analogue meters (IEC 60051 series) .............. 23

B.1 General ................................................................................................................. 23

B.2 Differences ........................................................................................................... 23

B.3 Differences between power quality, power monitoring and troubleshooting ........... 24

B.3.1 General ......................................................................................................... 24

B.3.2 Power quality ................................................................................................. 24

B.3.3 Power monitoring ........................................................................................... 24

B.3.4 Troubleshooting ............................................................................................. 24

B.4 Key parameters measured .................................................................................... 24

Annex C (informative) Explanation about measurements performed by PMD

(IEC 61557-12), IEC 62053-2x, MID .............................................................................. 26

Annex D (informative) Explanation about the scope of various standards ............................. 27

Bibliography .......................................................................................................................... 28

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IEC TR 63213:2019 © IEC 2019 – 3 –

Figure 1 – Measurement applications within the grid ............................................................. 13

Figure A.1 – Example of shops within a mall, where all shops are final energy users ............ 22

Table 1 – List of main applications ........................................................................................ 14

Table 2 – Standards for grid power quality application .......................................................... 15

Table 3 – Benefits of measurements for power monitoring application .................................. 16

Table 4 – Standards for power monitoring application ........................................................... 16

Table 5 – Standards for demand side power quality application ............................................ 17

Table 6 – Simplified overview of billing application ................................................................ 18

Table 7 – Benefits of measurements for billing application .................................................... 18

Table 8 – Standards for billing application............................................................................. 18

Table 9 – Simplified overview of EM/cost management application ....................................... 19

Table 10 – Benefits of measurements for EM/cost management application .......................... 19

Table 11 – Benefits of measurements for EM/energy efficiency application ........................... 20

Table 12 – Benefits of measurements for EM/energy efficiency application in industrial

processes ............................................................................................................................. 21

Table 13 – Standards for EM/energy efficiency application ................................................... 21

Table B.1 – Rough comparison between devices .................................................................. 23

Table B.2 – Measurement needs ........................................................................................... 25

Table C.1 – Rough comparison of energy measurement standards ....................................... 26

Table D.1 – Rough comparison of measurement parameters ................................................ 27

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– 4 – IEC TR 63213:2019 © IEC 2019
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
POWER MEASUREMENT APPLICATIONS WITHIN ELECTRICAL
DISTRIBUTION NETWORKS AND ELECTRICAL INSTALLATIONS
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

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The main task of IEC technical committees is to prepare International Standards. However, a

technical committee may propose the publication of a Technical Report when it has collected

data of a different kind from that which is normally published as an International Standard, for

example "state of the art".

IEC TR 63213, which is a Technical Report, has been prepared by IEC technical committee

85: Measuring equipment for electrical and electromagnetic quantities.
The text of this Technical Report is based on the following documents:
Draft TR Report on voting
85/662/DTR 85/690/RVDTR

Full information on the voting for the approval of this Technical Report 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 TR 63213:2019 © IEC 2019 – 5 –

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.
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– 6 – IEC TR 63213:2019 © IEC 2019
INTRODUCTION

Utility engineers and facility managers are requesting rich power and energy data from many

locations, with guaranteed and reliable accuracy. This data is essential for helping to

understand and ensure the reliability, efficiency, and cost effectiveness of their power

distribution systems and the energy generated or consumed.

A good understanding of the different kinds of measurement applications is critical to

choosing the proper type and capabilities of measuring devices for each location that will

deliver the required information.

To achieve these goals, a complete energy measurement plan supported by a network of

metering devices.

This report offers an overview of the different categories of measurement applications, with

detailed descriptions and illustrations of each, including references to the most relevant

international standards.
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IEC TR 63213:2019 © IEC 2019 – 7 –
POWER MEASUREMENT APPLICATIONS WITHIN ELECTRICAL
DISTRIBUTION NETWORKS AND ELECTRICAL INSTALLATIONS
1 Scope

This Technical Report intends to provide state-of-the-art information on the various electricity

measurement applications made in the grid (supply side) or in electrical installation (demand

side), and on the related standards covering these applications.

This Technical Report does not address measurements made for specific purposes such as

protection, control, automation or indication.
2 Normative references
There are no normative references in this document.
3 Terms, definitions and notations
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 Measurement definitions
3.1.1
power quality instrument
PQI

instrument whose main function is to measure, record and possibly monitor power quality

parameters in power supply systems, and whose measuring methods (class A or class S) are

defined in IEC 61000-4-30
[SOURCE: IEC 62586-1:2017, 3.1.1]
3.1.2
power quality assessment function
power quality functions whose measurement methods are defined in IEC 61000-4-30
[SOURCE: IEC 61557-12:2018, 3.1.2]
3.1.3
energy meter

instrument intended to measure electrical energy by integrating power with respect to time

[SOURCE: IEC 60050-313:2001, 313-01-35]
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– 8 – IEC TR 63213:2019 © IEC 2019
3.1.4
watt-hour meter
active energy meter
energy meter

instrument intended to measure active energy by integrating active power with respect to time

[SOURCE: IEC 60050-313:2001, 313-06-01, modified – The term "(active) energy meter" has

been changed to "active energy meter" and the term "energy meter" has been added to

comply with the ISO/IEC Directives Part 2:2018]
3.1.5
var-hour meter
reactive energy meter

instrument intended to measure reactive energy by integrating reactive power with respect to

time
[SOURCE: IEC 60050-313:2001, 313-06-02]
3.1.6
power metering and monitoring device
PMD

combination in one or more devices of several functional modules dedicated to metering and

monitoring electrical parameters in energy distribution systems or electrical installations, used

for applications such as energy efficiency, power monitoring and network performance

Note 1 to entry: Under the generic term "monitoring" are also included functions of recording, alarm management,

etc.

Note 2 to entry: These devices may include demand side quality functions for monitoring inside

commercial/industrial installations.
[SOURCE: IEC 61557-12:2018, 3.1.1, modified – Note 3 to entry has been deleted.]
3.1.7
revenue meter
utility meter
billing meter
electricity meters for billing

energy meter used to meter energy delivered by an energy supplier and to calculate the

related amount of money according to an agreed contract, defining the rate(s) and the time of

use
Note 1 to entry: These devices are used to bill or invoice final customers.
3.1.8
rate
amount to be paid per unit purchased (e.g. 1 kWh, 1 kW, 1 kVA)
[SOURCE: IEC 60050-691:1973, 691-11-21]
3.1.9
time of use

segregation of energy rates based on the time in which the energy is being consumed

3.1.10
meter index

non-resettable numerical value representing the total energy measured by the meter

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IEC TR 63213:2019 © IEC 2019 – 9 –
3.2 Measurement applications
3.2.1
grid power quality assessment

process that allows energy suppliers and/or their customers to verify that the quality of energy

delivered/received fulfils requirements of a defined contract or regulation
Note 1 to entry: Limits for European public networks are defined in EN 50160.
3.2.2
power monitoring

process that allows a facility manager to monitor its electrical installation in order to ensure

availability and reliability of energy as well as durability of electrical equipment.

3.2.3
energy management

process that allows a facility manager to monitor and control the energy consumption

according to the uses and the cost of energy within an electrical installation
3.2.4
billing

process that allows energy suppliers or their representatives to invoice their customers

according to a defined contract

Note 1 to entry: These applications can be covered by international standards, regulations such as MID in Europe

or NMI in Australia, and/or utility specifications.
3.2.5
sub-billing

process that allows a landlord, property management firm, condominium association,

homeowner association or other multi-tenant property to spread out invoice over energy users

(assign portions of invoice to users), for measured usages or services.
Note 1 to entry: This fee is usually combined with other tenant’s facility fees.
Note 2 to entry: The landlord does not commit on the quality of the supply.
3.2.6
cost allocation

process that allows a facility manager to account for energy costs from internal cost centres

that consume energy
EXAMPLE: process line, test and inspection, administration.
3.2.7
calculation of tax incentives

process that allows an owner to get incentives from the state, based on measurements

showing improvement in energy efficiency, according to a regulation
3.3 Grid definitions
3.3.1
electric power system
electricity supply system

all installations and plant provided for the purpose of generating, transmitting and distributing

electricity

[SOURCE: IEC 60050-601:1985, 601-01-01, modified – The term "electricity supply system (in

a broad sense)" has been changed to "electricity supply system" in order to comply with the

ISO/IEC Directives Part 2:2018.]
---------------------- Page: 11 ----------------------
– 10 – IEC TR 63213:2019 © IEC 2019
3.3.2
generation of electricity
process whereby electrical energy is obtained from some other form of energy
[SOURCE: IEC 60050-601:1985, 601-01-06]
3.3.3
distribution of electricity
transfer of electricity to consumers within an area of consumption
[SOURCE: IEC 60050-601:1985, 601-01-10]
3.3.4
power station
electrical generating station

installation whose purpose is to generate electricity, and which includes civil engineering

works, energy conversion equipment and all the necessary ancillary equipment
[SOURCE: IEC 60050-601:1985, 601-03-01]
3.3.5
substation

part of an electrical system, confined to a given area, mainly including

ends of transmission or distribution lines, electrical switchgear and control gear, buildings and

transformers

Note 1 to entry: The substation can be qualified according to the designation of the system of which it forms a

part. Examples: transmission, substation (transmission system), distribution substation, 400 kV or 20 kV substation.

Note 2 to entry: A substation generally includes safety or control devices (for example, protection).

[SOURCE: IEC 60050-601:1985, 601-03-02, modified – In order to comply with the ISO/IEC

Directives Part 2:2018, "(of a power system)" has been deleted from the term and added as a

domain, and the last sentence of the definition has been moved to Note 2 to entry.]

3.3.6
supply side

part of the grid where electric energy is generated, transmitted and distributed to end-use

customers through the public supply network

Note 1 to entry: This definition encompasses micro-grids, decentralised generators or renewable energy

generators.

Note 2 to entry: This definition encompasses the electric power system defined in IEC 60050-601:1985, 601-01-

01.
[SOURCE: IEC 61557-12:2018, 3.1.3, modified – Note 2 to entry has been added.]
3.3.7
demand side

part of the grid where electric energy is consumed by end-use customers within their electric

distribution system
Note 1 to entry: This concept also encompasses prosumers.
[SOURCE: IEC 61557-12:2018, 3.1.4, modified – Note 1 to entry has been added.]
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IEC TR 63213:2019 © IEC 2019 – 11 –
3.3.8
power quality

characteristics of the electric current, voltage and frequencies at a given point in an electric

power system, evaluated against a set of reference technical parameters

Note 1 to entry: These parameters might, in some cases, relate to the compatibility between electricity supplied in

an electric power system and the loads connected to that electric power system
[SOURCE: IEC 60050-617:2009, 617-01-05]
3.4 Stakeholder definitions
3.4.1
electricity supplier
supplier
energy supplier
party having a contract to supply electric power and energy to a customer

[SOURCE: IEC 60050-617:2009, 617-02-08, modified – The term "energy supplier" has been

added.]
3.4.2
final customer
end-use customer
party purchasing electric power for a given interval and energy for its own use
[SOURCE: IEC 60050-617:2009,617-02-04]
3.4.3
wholesale customer
wholesaler

party purchasing electric power for a given interval and energy for the purpose of their sale

inside or outside the electric power system to which the party is connected
[SOURCE: IEC 60050-617:2009, 617-02-03]
3.4.4
owner
landlord
consumer that owns a property

Note 1 to entry: Property management firms, condominium associations, homeowner associations or multi-tenant

properties are considered to be owners.
3.4.5
tenant
consumer that rents a property from an owner or a landlord
3.4.6
final energy user

user of energy-consuming assets located in individual units of multi-apartment or multi-

purpose buildings, where such units are supplied from a central source, and where energy is

not purchased, but inclusive or reimbursed
Note 1 to entry: Examples of final energy users are:

– service users, where energy cost is usually included in the service itself, e.g. hotel customers;

– mall shops, where energy cost is usually included in reimbursement fees, in the framework of a flat rate

pricing contract, based on steady figures such as surfaces or volumes;
---------------------- Page: 13 ----------------------
– 12 – IEC TR 63213:2019 © IEC 2019

– colocation data centres, where energy cost is usually included in reimbursement fees, in the framework of

a sub-metering pricing contract.
3.4.7
facility manager
party that operates, maintains and secures a facility or a plant
3.4.8
cost centre

defined department, division, or unit of an organization, or alternatively area, machine, or

person to whom direct and indirect costs can be allocated
3.4.9
contract
document agreed between two or more parties and committing both parties
3.4.10
commercial transaction
trading transaction

interaction between two or more parties in which goods, services or something of value is

exchanged for some type of remuneration, resulting in the issuance of an invoice

Note 1 to entry: A transaction that consists in dividing an invoice between parties without any profit is not

considered as a commercial transaction.
3.4.11
incentive

inducement or supplemental reward that serves as a motivational means for a desired action

or behaviour
3.4.12
dispute
disagreement followed by opposition against something
3.4.13
invoice
bill

non-negotiable commercial instrument issued by a seller to a buyer that identifies both the

trading parties and defines the items sold, shows the date of shipment and mode of transport,

prices and discounts (if any), and delivery and payment terms
3.4.14
reimbursement fee
portion of an invoice in contracts based on cost reimbursement pricing

Note 1 to entry: In sub-metering pricing contracts, the portion is calculated according to metered figures, e.g. a

measured consumption of electrical energy.

Note 2 to entry: In flat rate pricing contracts, the portion is calculated according to steady figures, e.g. a shop

surface.

Note 3 to entry: Each invoice (related to electricity, gas water, cleaning, services, etc.) can be spread out

between final energy users. The sum of each fee results into "fees".
3.4.15
prosumer
network user that consumes and produces electrical energy
[SOURCE: IEC 60050-617:2009,617-02-16]
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IEC TR 63213:2019 © IEC 2019 – 13 –
3.5 Notations
3.5.1 Abbreviated terms
N.R. Not requested
N.A. Not applicable
3.5.2 Indices
min minimum value
max maximum value
4 State-of-the-art measurement applications
4.1 General

Power generation, transmission, and distribution are typically terms of the "supply side".

Within this side, there are two main categories
...

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