DL/T 5155-2016 English PDF (DLT5155-2016)

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DL/T 5155-2016: Technical Code for Designing AC Station Service of 220kV~1000kV Substation
DL/T 5155-2016
POWER INDUSTRY STANDARD OF
THE PEOPLE’S REPUBLIC OF CHINA
ICS 27.100
P 62
Registration number: J173-2016
P DL/T 5155-2016
Replacing DL/T 5155-2002
Technical code for design AC station service
of 220kV ~ 1000kV substation
ISSUED ON: AUGUST 16, 2016
IMPLEMENTED ON: DECEMBER 01, 2016
Issued by: National Energy Administration
POWER INDUSTRY STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
Technical code for design AC station service
of 220kV ~ 1000kV substation
Replacing DL/T 5155-2002
Main drafting organization: Electrical Planning and Design Institute
Approved by: National Energy Administration
Date of implementation: December 01, 2016
2016 Beijing
Announcement of National Energy Administration
2016 No.6
According to the relevant provisions of the “Notice of the National Energy
Administration on Printing and Distributing the Industrial Standardization
Management Measures for Energy Sector (Trial) and Detailed Rules of
Implementation” (GNJKJ [2009] No.52), after review, the National Energy
Administration approved 144 industrial standards such as “Specification on
quality acceptance of construction of conventional island and supporting
facilities of nuclear power plant - Part 8: Thermal insulation and paint", including
75 energy standards (NB) and 69 power standards (DL), which are now
released.
Attachment: Industry standards catalog
National Energy Administration
August 16, 2016
Attachment:
Industrial standard catalog
No. Standard No. Standard name
Replaced
standard
Adopted
standard No.
Date of
approval
Date of
implementation
……
129 DL/T 5155-2016
Technical code for design
AC station service of 220kV
~ 1000kV substation
DL/T 5155-
2002 2016-08-16 2016-12-01
……
Table of Contents
Foreword ... 6 
1 General provisions ... 8 
2 Terms ... 8 
3 Station service system wiring ... 9 
3.1 Station service power supply ... 9 
3.2 Load classification ... 10 
3.3 Power supply manner ... 11 
3.4 Power supply connection ... 12 
3.5 Application of neutral grounding in auxiliary power system ... 12 
3.6 AC uninterruptible power supply ... 13 
4 Station service load analysis ... 13 
4.1 Principles of load calculations ... 13 
4.2 Load account procedure ... 14 
5 Choice of station service transformer ... 14 
6 Short-circuit current calculation and choice of electrical equipment and
conductors ... 15 
6.1 Short-circuit current calculation ... 15 
6.2 High-voltage switchyard ... 16 
6.3 Station service low-voltage equipment ... 16 
6.4 Choice of conductor ... 20 
6.5 Diesel-engine generators ... 20 
7 Station service equipment arrangement ... 20 
7.1 General requirements ... 20 
7.2 Arrangement of station service transformer... 21 
7.3 Arrangement of switchboard ... 22 
7.4 Arrangement of diesel-engine generator ... 24 
7.5 Clean energy and energy storage device ... 25 
7.6 Requirements for constructions ... 25 
8 Maintenance power supply ... 26 
9 Protection against electric shock ... 26 
10 Control, signaling, metering and automatic devices of station service system
... 27 
10.1 Station service power relay ... 27 
10.2 Station service power control, signaling and measure device ... 28 
10.3 Metering system ... 29 
10.4 Power automatic transfer switching equipment ... 29 
Appendix A Load characteristic table ... 30 
Appendix B Voltage-regulation calculation ... 32 
Appendix C Calculation of short-circuit current in 380V power centers ... 35 
Appendix D 380V feeder working current calculation ... 38 
Appendix E Selection and verification of protect device and conductor ... 41 
Explanation of wording in this code ... 46 
List of quoted standards ... 47 
Foreword ... 7 
1 General provisions ... 9 
2 Terms ... 9 
3 Station service system wiring ... 10 
3.1 Station service power supply ... 10 
3.2 Load classification ... 11 
3.3 Power supply manner ... 12 
3.4 Power supply connection ... 13 
3.5 Application of neutral grounding in auxiliary power system ... 13 
3.6 AC uninterruptible power supply ... 14 
4 Station service load analysis ... 14 
4.1 Principles of load calculations ... 14 
4.2 Load account procedure ... 15 
5 Choice of station service transformer ... 15 
6 Short-circuit current calculation and choice of electrical equipment and
conductors ... 16 
6.1 Short-circuit current calculation ... 16 
6.2 High-voltage switchyard ... 17 
6.3 Station service low-voltage equipment ... 17 
6.4 Choice of conductor ... 21 
6.5 Diesel-engine generators ... 21 
7 Station service equipment arrangement ... 21 
7.1 General requirements ... 21 
7.2 Arrangement of station service transformer... 22 
7.3 Arrangement of switchboard ... 23 
7.4 Arrangement of diesel-engine generator ... 25 
7.5 Clean energy and energy storage device ... 26 
7.6 Requirements for constructions ... 26 
8 Maintenance power supply ... 27 
9 Protection against electric shock ... 27 
10 Control, signaling, metering and automatic devices of station service system
... 28 
10.1 Station service power relay ... 28 
10.2 Station service power control, signaling and measure device ... 29 
10.3 Metering system ... 30 
10.4 Power automatic transfer switching equipment ... 30 
Appendix A Load characteristic table ... 31 
Appendix B Voltage-regulation calculation ... 33 
Appendix C Calculation of short-circuit current in 380V power centers ... 36 
Appendix D 380V feeder working current calculation ... 39 
Appendix E Selection and verification of protect device and conductor ... 42 
Explanation of wording in this code ... 47 
List of quoted standards ... 48 
Foreword
According to the requirements of the "Notice of National Energy Administration
on the Issuance of the Compilation/Revision Plan for the first batch of Energy
Industry Standard in 2010" (GNKJ [2010] No.320), the compilation team
conducted extensive investigations and studies, carefully summarized the
design experiences on the station service for 220kV and above substations,
absorbed the latest technological development results, solicitated extensive
opinions, to revise the original "Technical code for design AC station service of
220kV ~ 500kV substation" DL/T 5155-2002.
This standard has 10 chapters and 5 appendixes. The main technical contents
include general provisions; terms; station service system wiring; station service
load analysis; choice of station service transformer; short-circuit current
calculation and choice of electrical equipment and conductor; station service
equipment arrangement; maintenance power supply; protection against electric
shock; control, signaling, metering and automatic devices of station service
system.
The main contents of this revision are:
1. The original standard applies to the substation which has a voltage ranging
from 220kV to 500kV. In this revision, it includes the requirements for the
station service of 750kV and 1000kV substations, changes the standard
name to “Technical code for design AC station service of 220kV ~ 1000kV
substation"
2. The original standard has 8 chapters. This revision adds two separate
chapters of "terms" and "protection against electric shock"; in addition, the
chapter 5 "Selection of station service transformers" in the original
standard is divided into two chapters "Sta...