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IEC 60834-1:1999
Current
The latest, up-to-date edition.
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Teleprotection equipment of power systems - Performance and testing - Part 1: Command systems
Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users
English - French, Spanish, Castilian
08-10-1999
1 General
1.1 Scope
1.2 Normative references
1.3 Service conditions
1.4 Telecommunication system used
1.5 Definitions
2 Characteristics of command type teleprotection systems
2.1 Types of teleprotection command schemes
(telecommunication circuit included)
2.3 Transmission times (telecommunication circuit
excluded)
2.4 Security
2.5 Dependability
2.6 Nominal frequency band or bit rate
2.7 Nominal impedance
2.8 Guard signals/Command signals
2.9 Levels of guard signals (analogue systems only)
2.10 Levels of command signals (analogue systems
only)
3 Requirements for command type teleprotection systems
3.1 General equipment interface requirements
3.2 Specific power supply requirements
3.3 Teleprotection system performance requirements
4 Methods for performance testing
4.1 General equipment interface tests
4.2 Specific power supply tests
4.3 Teleprotection system performance tests
Annex A (informative) Teleprotection system performance tests
Annex B (informative) Binary symmetric channel (BSC) model
Annex C (informative) Example of a security analysis for a
simple protocol
Annex ZA (normative) Normative references to international
publications with their corresponding
European publication
Figure 1 - Voice frequency configuration
Figure 2 - Power line carrier frequency configuration
Figure 3 - Directly connected digital teleprotection (example)
Figure 4 - Digital teleprotection connected via a multiplexed
communication system
Figure 5 - Fundamental terms on protection and teleprotection
Figure 6 - Typical operating times for protection systems
incorporating teleprotection
Figure 7 - Test circuit for testing power supply interruptions
Figure 8 - Test circuit for LF disturbance emission
measurement
Figure 9 - Examples of the probability of missing command
versus signal-to-noise ratio
Figure 10 - Test set-up for dependability measurement
(analogue teleprotection)
Figure 11 - Test set-up for dependability measurement (digital
teleprotection)
Figure 12 - Test set-up for security measurement (analogue
teleprotection)
Figure 13 - Test set-up for security measurement (digital
teleprotection)
Figure 14 - Examples of probability of unwanted commands
versus signal-to-noise ratio for 200 Bd channel
Figure 15 - Test set-up for measuring transmission time
Figure 16 - Test set-up for measuring interference by discrete
frequencies
Figure 17 - Test set-up for measuring interference by
frequency deviation
Figure 18 - Frequency deviation versus time for test set-up
in Figure 17
Figure 19 - Test set-up for recovery time measurement for
digital teleprotection
Figure 20 - Test set-up for recovery time measurement for
analogue teleprotection
Figure 21 - Performance guidance figures for various
teleprotection schemes
Figure 22 - Example of dependability curves for digital
teleprotection
Figure 23 - Example of security curve for digital
teleprotection
Figure 24 - Test set-up for measuring jitter at the output of
a digital teleprotection transmitter
Figure 25 - Jitter mask for testing jitter at the input of a
digital teleprotection receiver
Figure A.1 - Graph showing the uncertainty of probability for
a confidence level for 95% for various values of
E and N
Figure A.2 - Examples of probability of unwanted commands
versus signal-to-noise ratio for a 200 Bd channel
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