DL/T 5149-2001 English PDF (DLT5149-2001)

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DL/T 5149-2001: Technical code for designing computerized monitoring and control system of 220~500kV substations
DL/T 5149-2001
POWER INDUSTRY STANDARD OF
THE PEOPLE’S REPUBLIC OF CHINA
ICS 27.100
P 62
Filing No.: J152-2002
P DL/T 5149-2001
Technical code for designing computerized
monitoring and control system of 220~500kV
substations
ISSUED ON: DECEMBER 26, 2001
IMPLEMENTED ON: MAY 1, 2002
Issued by: National Economic and Trade Commission of the People’s
Republic of China
Table of Contents
Foreword ... 5 
1 Scope of application ... 7 
2 Normative references ... 8 
3 General ... 9 
4 Main terms ... 10 
5 System composition ... 12 
5.1 System structure ... 12 
5.2 Network structure ... 12 
5.3 Hardware equipment ... 13 
5.4 Software system ... 14 
5.5 Technical indicator ... 15 
6 System functions ... 18 
6.1 Data acquisition and processing ... 18 
6.2 Database establishment and maintenance ... 18 
6.3 Control operation ... 19 
6.4 Anti-mislocking ... 20 
6.5 Synchronizing ... 20 
6.6 Alarm processing ... 21 
6.7 Event sequence recording and accident recall ... 21 
6.8 Screen generation and display ... 22 
6.9 Online calculation and tabulation ... 22 
6.10 Electric energy processing ... 23 
6.11 Telecontrol function ... 23 
6.12 Clock synchronization ... 23 
6.13 Man-machine interaction ... 24 
6.14 System self-diagnosis and self-recovery ... 25 
6.15 Interface with other devices ... 25 
6.16 Operation management ... 26 
7 Signal input/output ... 27 
7.1 Analog input signal ... 27 
7.2 On-off input signal... 27 
7.3 Electrical energy data input signal ... 27 
7.4 On-off output signal... 28 
8 Equipment layout ... 29 
8.1 Layout of station level equipment ... 29 
8.2 Layout of bay level equipment ... 29 
8.3 Screen cabinet structure and screen layout ... 29 
9 Venue and environment ... 30 
10 Power supply ... 31 
11 Lightning protection and grounding ... 32 
12 Cable selection and laying ... 34 
Appendix A (Indicative) Description of the words in this Code ... 35 
Appendix B (Indicative) Analog signal ... 36 
Appendix C (Indicative) Main on-off input signals ... 43 
Appendix D (Indicative) Electrical energy signal acquisition parameters ... 45 
Appendix E (Indicative) On-off output signals ... 47 
1 Scope of application
This Code is applicable to the design of computerized monitoring and control
system for the newly built 220kV hub substations and 500kV (330kV)
substations. Expansion and reconstruction projects of the same voltage
grade may be carried out with reference.
2 Normative references
The following standards include provisions that constitute provisions of this
Code by reference in this Code. At the time of publication of this Standard, the
editions indicated are valid. All standards are subject to revision. Parties to
this Standard shall explore the possibility of using the latest editions of the
following standards.
GB/T 50217-1994 Code for design of cables electric work
GB/T 17626-1998 Electromagnetic compatibility – Testing and
measurement techniques
DL/T 630-1997 Technical requirement for RTU with a.c. electrical
quantities input, discrete sampling
DL/T 634-1997 Telecontrol equipment and systems – Part 5: Transmission
protocols – Section 101 Companion standard for basic telecontrol tasks
DL/T 667-1999 Telecontrol equipment and systems – Part 5: Transmission
protocol – Section 103 Companion standard for the information interface of
protection equipment
DL/T 719-2000 Telecontrol equipment and systems – Part 5: Transmission
protocol – Section 102 Companion standard for the transmission of
integrated totals in electric power systems
DL 5002-1991 Specifications for the design of dispatching automation in
district electric power systems
DL 5003-1991 Specifications for the design of dispatching automation in
electric power systems
DL/T 5136-2001 Technical code for designing of electrical secondary
wiring in fossil fuel power plants and substations
DL/T 5137-2001 Technical code for designing electrical measuring and
energy metering device
SDJ 2-1988 Technical code for designing 220~500kV substations
3 General
3.0.1 This Code is specific design regulations for 500kV (330kV)
substations and 220kV hub substations using the computerized monitoring
and control system, and is supplementary regulations for implementing the
relevant provisions of Technical code for designing 220~500kV substations
and Technical code for designing of electrical secondary wiring in fossil fuel
power plants and substations.
3.0.2 The design of the computerized monitoring and control system of
substations shall follow the following principles:
1) Improve the safety production level, technical management level and
power supply quality of substations.
2) Make the substations easy to operate and simple to maintain, improve
labor productivity and operating efficiency, and realize the reduction of
labor and enhancement of efficiency.
3) Reduce connection between secondary devices, and save control
cables.
4) Reduce the configuration of substation equipment, avoid repeated
equipment settings, and achieve resource sharing.
5) Reduce the area of substations and the project cost.
3.0.3 The selection of the computerized monitoring and control system of
substations shall be safe, reliable, economical, advanced in technology, and
in line with nationality. Mature and reliable products that are open, extensible,
and highly resistant to interference shall be adopted.
3.0.4 The computerized monitoring and control system of substations shall
be able to realize reliable, reasonable and perfect monitoring of substations,
shall have all telecontrol functions such as telemetering, tele-signalisation,
tele-regulation, telecontrol, etc., and shall be capable of exchanging
information with the computer system of the dispatching communication
center.
3.0.5 In addition to the implementation of this Code, the design of the
computerized monitoring and control system of substations shall also carry
out relevant standards, specifications and codes, and regulations.
4 Main terms
4.0.1 Hierarchical
A way to organize elements at different levels. Among which, the elements of
the higher level have a control relationship with the elements of the lower
level.
4.0.2 Distributed
Refer to the distribution of the composition of the computerized monitoring
and control system of substations in resource logic or topology, mainly
focusing on the distribution problem on processing and distribution problem
on functions from the perspective of system structure.
4.0.3 Decentralized
Refer to the composition of the computerized monitoring and control system
of substations in terms of physical significance relative to centralization,
emphasizing the object-oriented and geographic decentralization.
4.0.4 Data acquisition
Convert all kinds of electrical quantity and status signals in the field into digital
signals that can be recognized by the computer and store in the computer
system.
4.0.5 Data processing
Systematize all kinds of data of related equipment to support the system to
complete the functions of monitoring and control, protection, control and
recording.
4.0.6 Monitoring and control
Verify whether functions are performed correctly by continuous or periodic
monitoring and control of the system or equipment, and adapt their operating
conditions to changing operational requirements.