115 kv substation design presentation
TRANSCRIPT
1
Design and
Construction of A 115
kV Substation
2
Substation Design
Civil and structural
design
Mechanical design
Electrical design
Substation layout
3
Construction
Relay setting
Substation layout
Testing and commissioning
4
Civil and structural
design
Civil and structural
design1. Site preparation
2. Soil sterilization
3. Drainage
4. Foundations and structures
5. Oil containment
5
Reference Standards:
1. ACI 117-90, Standard tolerances for concrete
construction and materials.
2. ACI 301-96, Specifications for structural
concrete for buildings.
3. ACI 304-89, Guide for measuring, mixing,
transporting and placing concrete.
6
1. Heating, ventilation and air condition
2. Water and sewer connection
3. Noise abatement facility
4. Level of fire protection
5. Levels of exhaust emissions
Mechanical design
7
1. ACI 305-91, Hot weather concreting.
2. ACI 306-88, Cold weather concreting.
3. ACI 318-99, Building code requirements for
reinforced concrete & commentary.
4. ANSI B18.12-1962, American national standard
glossary of terms for mechanical fasteners.
5. ANSI C29.9-1983, American national standard
for wet-process porcelain insulators.
Reference Standards:
8
Electrical design
1. Protection and control design
2. Communication design
3. Grounding and shielding
4. Circuit breaker,
5. Instrumentation and metering
9
1. Accredited standard committee C2-1997, National electrical safety code.
2. ANSI C37.06-1997, American national standard for switchgear AC high voltage circuit breakers rated on a symmetrical current basis preferred ratings and related required capabilities.
3. ANSI C37.12-1991, American national standard specification guide for AC high voltage circuit breaker based on a symmetrical current basis.
Reference Standards:
10
4. ANSI C37.32-1996, American national standard for switchgear high voltage air switches, bus supports, and switch accessories schedules of preferred ratings, manufacturing specifications, and applications guide.
5. ANSI C57.12.10-1988, American national standard for transformers.
6. ANSI C57.12.11-1980, American national standard guide for installation of oil immersed transformers (10 MVA, 69-287 kV rating)
Reference Standards: (Cont.)
11
7. ANSI C93.4-1984, American national standard
for power line carrier line tuning equipment.
8. ANSI C298-1985, American national standard
for wet process porcelain insulators
9. ANSI 14.15-1988, American national standard
electrical and electronic diagram
10. ANSI/NAAMM MBG531-1993, Metal bar
grating manual
Reference Standards: (Cont.)
12
11. IEEE Std 48-1996, IEEE standard test procedures and requirements for alternating current cable.
12. IEEE Std 80-2000, IEEE guide for safety in AC substation grounding.
13. IEEE Std 485-1997. IEEE recommended practice for sizing lead acid batteries for stationary applications.
14. IEEE Std 605-1998, IEEE guide for the design of substation rigid-bus structures.
Reference Standards: (Cont.)
13
15. IEEE Std 998-1996, IEEE guide for direct
lightning stroke shielding of substation.
16. IEEE Std 1264-1993, IEEE guide for animal
deterrents for electric power supply substation.
17. IEEE Std C37.010-1988, IEEE application
guide for AC high voltage circuit breakers rated
on a symmetrical current basis.
18. IEEE Std C37-30-1997, IEEE standard
requirements for high voltage switches.
Reference Standards: (Cont.)
14
Construction
1. Grading specifications
2. Foundation specifications
3. Structures
4. Fence specifications
5. Bus and equipment
6. Testing and monitoring
7. Compliance with applicable regulation
15
Construction of Grounding System
16
Installation of High-Voltage Equipment
17115kV Disconnecting and Earthing Switch
18
CT and VT
19SF6 Circuit Breaker
20
115kV/6.9kV 6MVA Power Transformer
21Control Cable Installation
22Medium Voltage Switchgear and
Controlgear
23Protection Relaying and Control
Board
24Battery Charger
25
Control Room
26
115 kV Substation
27
Relay setting
1. Line protection
2. Substation bus protection
3. Transformer protection
4. Breaker protection
5. Utility-consumer interconnections
6. Other substation protection
28
Testing and Commissioning
1. Testing standards
2. Test and records to provide positive
assurance
3. Operation and maintenance training
29
Operation and Maintenance Training
1. Location and identification of major equipment components
2. Demonstration of equipment maintenance techniques
3. Demonstration of equipment operation, both locally and remote
30
4. Overview of the indicating instruments in the panels
5. Overview of the protective relay system, definition of zones covered by each relay, implication of trips, techniques for setting trip points
Operation and Maintenance Training (Cont.)
31
32
1.Substation Design
2.Grounding Design
3.Commissioning
33
Electrical Design
General
1. Coordination with other design groups
2. Preliminary and ultimate substation layout to establish size requirements in consultation with the other design groups
3. Animal deterrent designs required for the substation
4. Ultimate low-voltage AC station service load requirements for the equipment at the substation
34
5. Sources of the preferred and alternate AC station power service
6. All control measurement, indication, and protection design, including wiring
35
1. IEEE Std 525-1992 Guide for the Design and Installation of Cable Systems in Substations
2. IEEE Std 605-1998 Guide for Design of Substation Rigid-Bus Structures
3. IEEE Std 837-2002 Standard for Qualifying Permanent Connections Used in Substation Grounding
4. IEEE Std 979-1984 Guide for Substation Fire Protection
36
5. IEEE Std 998-1996 Guide for Direct Lightning Stroke Shielding of Substations
6. IEEE Std 1119-1988 Guide for Fence Safety Clearances in Electric-supply Stations
7. IEEE Std 1127-1990 Guide for the Design, Construction and Operation of Safe Reliable Substations for Environmental Acceptance
8. IEEE Std 1246-2002 Guide for Temporary Protective Grounding System Used in Substations
37
31.5MVA Power Transformer
38
Steel Structure Installation
39
40
Conduit Installation
41Aluminum Tube Busbar Installation
42
Grounding Design
43
Standard Design
IEEE Std. 80-2000, “IEEE Guide for Safety in IEEE Std. 80-2000, “IEEE Guide for Safety in AC Substation Grounding is based on the AC Substation Grounding is based on the Safety Criteria of Acceptable Touch and Safety Criteria of Acceptable Touch and Step Potentials”, May 1, 2001. Step Potentials”, May 1, 2001.
44
Process Design
1. Survey
2. Measurement Soil Resistivity
3. Grounding Design
45
a /2 0 m ax
a a a
v
I
G ro u n d
S o il
Four Point Method or Wenner’s MethodFour Point Method or Wenner’s Method
46
47
48
49
Ground Resistance Measurement
50
IEEE Std.81.2-1991, “IEEE Guide for IEEE Std.81.2-1991, “IEEE Guide for Measurement of Impedance and Safety Measurement of Impedance and Safety Characteristics of Large, Extended or Characteristics of Large, Extended or Interconnected Grounding System”, June Interconnected Grounding System”, June 25, 1992.25, 1992.
Standard Measurement
51
Ground SystemGround System
AA
VV
62 %62 % 100 %100 %
52
Standard Design
1. Accredited standard committee C2-1997, National electrical safety code.
2. ACI 117-90, Standard tolerances for concrete construction and materials.
3. ACI 301-96, Specifications for structural concrete for buildings.
4. ACI 304-89, Guide for measuring, mixing, transporting and placing concrete.
53
5. ACI 305-91, Hot weather concreting.
6. ACI 306-88, Cold weather concreting.
7. ACI 318-99, Building code requirements for reinforced concrete & commentary.
8. ANSI B18.12-1962, American national standard glossary of terms for mechanical fasteners.
9. ANSI C29.9-1983, American national standard for wet-process porcelain insulators.
54
10. ANSI C37.06-1997, American national standard for switchgear AC high voltage circuit breakers rated on a symmetrical current basis preferred ratings and related required capabilities.
11. ANSI C37.12-1991, American national standard specification guide for AC high voltage circuit breaker based on a symmetrical current basis.
55
12. ANSI C37.32-1996, American national standard for switchgear high voltage air switches, bus supports, and switch accessories schedules of preferred ratings, manufacturing specifications, and applications guide.
13. ANSI C57.12.10-1988, American national standard for transformers.
14. ANSI C57.12.11-1980, American national standard guide for installation of oil immersed transformers (10 MVA, 69-287 kV rating)
56
15. ANSI C57.12.12-1980, American national standard guide for installation of oil immersed transformers 345 kV and above
16. ANSI C63.2-1996, American national standard for electromagnetic noise and field strength instrumentation, 10 kHz to 40 GHz.
17. ANSI C93.2-1976, American national standard requirements for power line coupling capacitor voltage transformers.
18. ANSI C93.3-1981, American national standard for power line carrier line traps.
57
19. ANSI C93.4-1984, American national standard for power line carrier line tuning equipment.