IEEE 605-2023

$106.17

IEEE Guide for Bus Design in Air Insulated Substations (Published)

Published By	Publication Date	Number of Pages
IEEE	2023	317

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Description

Revision Standard – Active. A proper design of the substation bus is aimed towards a safe and reliable operation of the substation and the power system. Two different types of buses are used in substations: the rigid bus and the strain (cable). Information is provided by this guide on the different bus arrangements used in substations stating the advantages and disadvantages of each. Information as related to each bus type and construction is also provided. Once the bus type is selected, the calculation tools for each bus type are provided by this guide. Based on these calculations, the bus size, forces acting on the bus structure, the number of mounting structures required, and hardware requirements can be specified by the engineer.

PDF Catalog

PDF Pages	PDF Title
1	IEEE Std 605™-2023 Front cover
2	Title page
4	Important Notices and Disclaimers Concerning IEEE Standards Documents
8	Participants
10	Introduction
11	Contents
14	IEEE Guide for Bus Design in Air Insulated Substations 1. Overview 1.1 Scope 1.2 Purpose
15	1.3 Word usage 2. Normative references
16	3. Definitions
17	4. Bus arrangements 4.1 General
18	4.2 Single bus single breaker (SBSB) arrangement 4.3 Main and transfer bus (MTB) arrangement
19	4.4 Double bus single breaker (DBSB) arrangement
20	4.5 Ring bus (RB) arrangements
21	4.6 Breaker and half bus (BAH) arrangement
22	4.7 Double bus double breaker (DBDB) arrangement
23	4.8 Bus arrangements comparison
25	5. Bus design considerations 5.1 General 5.2 Preliminary bus design considerations
26	5.3 Construction type
28	5.4 Disconnect switches 6. Conductors 6.1 General
29	6.2 Materials
31	6.3 Rigid conductors
32	6.4 Flexible conductors
33	6.5 Field bending of rigid conductors
34	6.6 Connections
38	7. Design procedure 7.1 General 7.2 Design specification
39	7.3 Select bus arrangement 7.4 Design considerations 7.5 Select conductor type
40	7.6 Structure design
41	7.7 Review calculations 7.8 Select materials 8. Ampacity 8.1 General 8.2 Heat balance
43	8.3 Conductor temperature limits
44	8.4 Ampacity tables
45	9. Corona and radio interference 9.1 General 9.2 Determination of corona performance
46	9.3 EMI tolerance of substation equipment 9.4 Reducing EMI
47	9.5 Reducing corona generated radiated and conductor signal interference 10. Overview of mechanical design of bus structures 10.1 Introduction
48	10.2 General mechanical design procedure
50	10.3 Load factors and combinations
52	10.4 Calculation methods
54	11. Loads on bus structures 11.1 General 11.2 Loads to consider in design
55	11.3 Design environmental loads 11.4 Design exceedance probabilities
56	11.5 Gravitational loads
58	11.6 Wind loads
64	11.7 Short-circuit loads
72	11.8 Simplified calculations for short-circuit load on rigid buses
83	11.9 Finite-element calculations for short-circuit loads on rigid buses
84	11.10 Simplified calculations for short-circuit loads on strain bus
103	11.11 Finite-element calculations for short-circuit loads on strain bus 11.12 Thermal loads
106	12. Strength, deflection, and other design considerations 12.1 General 12.2 Conductor strength 12.3 Rigid bus deflection limitation
107	12.4 Insulator strength
115	12.5 Structural analysis considerations
117	12.6 Clearance considerations for rigid bus 12.7 Vibration considerations
119	12.8 Vibration attenuation 12.9 Rigid bus fittings 13. Simplified methods for the analysis of rigid bus conductors and insulators 13.1 Rigid bus maximum allowable span based on vertical deflection limit
122	13.2 Rigid bus maximum allowable span length based on conductor strength
124	13.3 Rigid bus maximum allowable span design method
125	13.4 Evaluation of cantilever loading on insulators
134	13.5 First natural frequency of rigid conductors
135	Annex A (informative) Bibliography
138	Annex B (normative) Thermal considerations for outdoor bus-conductor design B.1 Abstract B.2 Introduction
139	B.3 Properties of materials
144	B.4 Heat transfer
165	B.5 References
167	Annex C (informative) Rigid bus conductor ampacity
181	Annex D (informative) Corona and substation bus design D.1 Corona and gap discharge
183	D.2 Corona effects
184	D.3 Electromagnetic interference
188	D.4 Methods of reducing the probability of substation corona
189	D.5 Calculations of maximum voltage gradient
192	D.6 Glossary
193	D.7 References
195	Annex E (informative) Physical properties of common bus conductors
229	Annex F (informative) Mechanical forces on current-carrying conductors F.1 Introduction
230	F.2 Conductor arrangements
231	F.3 Skewed-conductor arrangements
232	F.4 Distribution and direction of forces
234	F.5 Development of general formula for the distribution of mechanical forces in current-carrying conductors
238	F.6 Numerical example
240	F.7 Special conductor arrangements
244	F.8 Conclusions F.9 References F.10 Appendixes
247	Annex G (informative) Calculation example of short-circuit analysis on rigid bus systems G.1 General G.2 CIGRE structure D
249	G.3 Simplified calculations
251	G.4 Finite-element calculations
253	G.5 Comparisons of calculations with experimental results G.6 Final notes
254	Annex H (informative) Calculation example of short-circuit analysis on strain bus systems H.1 General H.2 Example 4.2.4 from CIGRE brochure 006
255	H.3 Simplified calculations
259	H.4 Finite-element calculations
260	H.5 Comparisons of simplified calculations with finite-element results
261	H.6 Final notes
262	Annex I (informative) Example rigid bus design I.1 Description
263	I.2 General
264	I.3 Ampacity
270	I.4 Minimum size for short-circuit current
272	I.5 Voltage gradient
274	I.6 Allowable span evaluation
278	I.7 Vibration
280	I.8 Thermal expansion
281	I.9 Insulator selection
284	I.10 Summary
285	Annex J (informative) Example strain bus design J.1 Introduction
287	J.2 Calculations
310	Annex K (informative) Bus expansion
317	Back cover