EN 60834-1:1999
(Main)Teleprotection equipment of power systems - Performance and testing - Part 1: Command systems
Teleprotection equipment of power systems - Performance and testing - Part 1: Command systems
Applies to narrow-band (max. 4 kHz) teleprotection equipment, both single-signal and multi-signal. Also applies to voice-frequency equipment used with various telecommunications systems, such as power line carrier (PLC), radio links, rented circuits and leased or owned cables. Establishes performance requirements and test methods for testing channels used for transmitting command information required by protective devices in power systems, and gives the associated terminology.
Schutzsignal-Übertragungseinrichtungen für Energieversorgungsnetze - Leistungsmerkmale und Prüfungen - Teil 1: Systeme mit Übertragung von Befehlen
Matériels de téléprotection des réseaux d'énergie électrique - Performances et essais - Partie 1: Systèmes de commande
S'applique aux matériels de téléprotection à bande étroite (max. 4 kHz) à signal unique ou multiple. S'applique également aux matériels à fréquences vocales utilisés avec divers systèmes de télécommunications, tels que courant porteur sur ligne d'énergie, liaisons radioélectriques, circuits loués et câbles concédés aux privés. Etablit les prescriptions pour les performances et les méthodes d'essai des voies utilisées par les signaux de transmission d'information de commande nécessaires aux dispositifs de protection des réseaux d'énergie électrique et donne la terminologie s'y rapportant.
Teleprotection eqiupment of power systems - Performance and testing - Part 1: Command systems (IEC 60834-1:1999)
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Standards Content (Sample)
SLOVENSKI STANDARD
01-februar-2001
1DGRPHãþD
SIST HD 543.1 S1:1997
Teleprotection eqiupment of power systems - Performance and testing - Part 1:
Command systems (IEC 60834-1:1999)
Teleprotection equipment of power systems - Performance and testing -- Part 1:
Command systems
Schutzsignal-Übertragungseinrichtungen für Energieversorgungsnetze -
Leistungsmerkmale und Prüfungen -- Teil 1: Systeme mit Übertragung von Befehlen
Matériels de téléprotection des réseaux d'énergie électrique - Performances et essais --
Partie 1: Systèmes de commande
Ta slovenski standard je istoveten z: EN 60834-1:1999
ICS:
29.240.20 Daljnovodi Power transmission and
distribution lines
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
NORME CEI
INTERNATIONALE IEC
60834-1
INTERNATIONAL
Deuxième édition
STANDARD
Second edition
1999-10
Matériels de téléprotection des
réseaux d'énergie électrique –
Performances et essais –
Partie 1:
Systèmes de commande
Teleprotection equipment of power systems –
Performance and testing –
Part 1:
Command systems
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XA
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Pour prix, voir catalogue en vigueur
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60834-1 IEC:1999 – 3 –
CONTENTS
Page
FOREWORD . 7
Clause
1 General. 9
1.1 Scope . 9
1.2 Normative references. 9
1.3 Service conditions. 11
1.4 Telecommunication system used. 13
1.5 Definitions. 15
2 Characteristics of command type teleprotection systems . 23
2.1 Types of teleprotection command schemes . 23
2.2 Overall operating time of teleprotection systems
(telecommunication circuit included). 23
2.3 Transmission times (telecommunication circuit excluded) . 23
2.4 Security . 25
2.5 Dependability . 27
2.6 Nominal frequency band or bit rate . 29
2.7 Nominal impedance. 29
2.8 Guard signals/Command signals . 29
2.9 Levels of guard signals (analogue systems only) . 29
2.10 Levels of command signals (analogue systems only) . 29
3 Requirements for command type teleprotection systems. 31
3.1 General equipment interface requirements . 31
3.2 Specific power supply requirements. 37
3.3 Teleprotection system performance requirements. 39
4 Methods for performance testing . 47
4.1 General equipment interface tests . 47
4.2 Specific power supply tests . 49
4.3 Teleprotection system performance tests . 51
Annex A (informative) Teleprotection system performance tests. 99
Annex B (informative) Binary symmetric channel (BSC) model . 107
Annex C (informative) Example of a security analysis for a simple protocol . 109
Figure 1 – Voice frequency configuration . 69
Figure 2 – Power line carrier frequency configuration . 69
Figure 3 – Directly connected digital teleprotection (example) . 69
Figure 4 – Digital teleprotection connected via a multiplexed communication system . 69
Figure 5 – Fundamental terms on protection and teleprotection. 71
60834-1 IEC:1999 – 5 –
Page
Figure 6 – Typical operating times for protection systems incorporating teleprotection. 73
Figure 7 – Test circuit for testing power supply interruptions . 75
Figure 8 – Test circuit for LF disturbance emission measurement. 75
Figure 9 – Examples of the probability of missing command versus signal-to-noise ratio . 77
Figure 10 – Test set-up for dependability measurement (analogue teleprotection) . 79
Figure 11 – Test set-up for dependability measurement (digital teleprotection) . 79
Figure 12 – Test set-up for security measurement (analogue teleprotection). 81
Figure 13 – Test set-up for security measurement (digital teleprotection) . 81
Figure 14 – Examples of probability of unwanted commands versus signal-to-noise ratio
for 200 Bd channel . . 83
Figure 15 – Test set-up for measuring transmission time. 85
Figure 16 – Test set-up for measuring interference by discrete frequencies. 85
Figure 17 – Test set-up for measuring interference by frequency deviation . 87
Figure 18 – Frequency deviation versus time for test set-up in figure 17 . 87
Figure 19 – Test set-up for recovery time measurement for digital teleprotection . 89
Figure 20 – Test set-up for recovery time measurement for analogue teleprotection . 89
Figure 21 – Performance guidance figures for various teleprotection schemes . 91
Figure 22 – Example of dependability curves for digital teleprotection. 93
Figure 23 – Example of security curve for digital teleprotection. 95
Figure 24 – Test set-up for measuring jitter at the output of a digital
teleprotection transmitter .97
Figure 25 – Jitter mask for testing jitter at the input of a digital teleprotection receiver . 97
Figure A.1 – Graph showing the uncertainty of probability for a confidence level
of 95 % for various values of E and N . 103
Figure A.2 – Examples of probability of unwanted commands versus signal-to-noise ratio
for a 200 Bd channel. 105
60834-1 IEC:1999 – 7 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
___________
TELEPROTECTION EQUIPMENT OF POWER SYSTEMS –
PERFORMANCE AND TESTING –
Part 1: Command systems
FOREWORD
1) The IEC (International Electrotechnical Commission) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of the IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, the IEC publishes International Standards. Their preparation is
entrusted to technical committees; any IEC National Committee interested in the subject dealt with may
participate in this preparatory work. International, governmental and non-governmental organizations liaising
with the IEC also participate in this preparation. The IEC collaborates closely with the International Organization
for Standardization (ISO) in accordance with conditions determined by agreement between the two
organizations.
2) The formal decisions or agreements of the 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 National Committees.
3) The documents produced have the form of recommendations for international use and are published in the form
of standards, technical reports or guides and they are accepted by the National Committees in that sense.
4) In order to promote international unification, IEC National Committees undertake to apply IEC International
Standards transparently to the maximum extent possible in their national and regional standards. Any
divergence between the IEC Standard and the corresponding national or regional standard shall be clearly
indicated in the latter.
5) The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with one of its standards.
6) Attention is drawn to the possibility that some of the elements of this International Standard may be the subject
of patent rights. The IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 60834-1 has been prepared by IEC technical committee 57: Power
system control and associated communications.
This second edition cancels and replaces the first edition published in 1988.
The text of this standard is based on the following documents:
FDIS Report on voting
57/406/FDIS 57/425/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 3.
Annexes A, B and C are for information only.
The committee has decided that this publication remains valid until 2004. At this date, in
accordance with the committee’s decision, the publication will be
• reconfirmed;
• withdrawn;
• replaced by a revised edition, or
• amended.
60834-1 IEC:1999 – 9 –
TELEPROTECTION EQUIPMENT OF POWER SYSTEMS –
PERFORMANCE AND TESTING –
Part 1: Command systems
1 General
1.1 Scope
This part of IEC 60834 applies to teleprotection command systems used to convey command
information, generally in conjunction with protection equipment. It aims at establishing
performance requirements and recommended testing methods for command type teleprotection
equipment. The information conveyed by the teleprotection equipment can be in analogue or
digital form.
The command type teleprotection equipment referred to in this standard can be power line
carrier equipment or voice frequency equipment which is used in connection with various
telecommunication systems, such as power line carrier (PLC), radio links, optical fibre, rented
circuits, leased or privately owned cables. In addition the command type teleprotection can be
digital equipment which is used with a digital telecommunication system or media such as
optical fibres, radio links, leased or privately owned digital links.
The command type teleprotection equipment may be separate or provided as an integral part of
the protection equipment.
In addition to teleprotection equipment performance tests, tests have to be carried out on the
power supply of the teleprotection equipment. All the tests should be regarded as type tests.
NOTE – According to the International Electrotechnical Vocabulary (IEV), a type test is defined as a test of one or
more devices made to a certain design to show that the design meets certain specifications.
1.2 Normative references
The following normative documents contain provisions which, through reference in this text,
constitute provisions of this part of IEC 60834. For dated references, subsequent amendments
to, or revisions of, any of these publications do not apply. However, parties to agreements
based on this part of IEC 60834 are encouraged to investigate the possibility of applying the
most recent editions of the normative documents indicated below. For undated references, the
latest edition of the normative document referred to applies. Members of IEC and ISO maintain
registers of currently valid International Standards.
IEC 60050(151):1978, International Electrotechnical Vocabulary – Chapter 151: Electrical and
magnetic devices
IEC 60
...
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