Electrical Substation Design Calculations Pdf


192 ©2005 Cooper Bussmann Short Circuit Current Calculations Introduction Several sections of the National Electrical Code® relate to proper overcurrent pro-tection. Improve project delivery and better manage design information across the entire project lifecycle with intelligent substation design, a model-centric approach that unites 3D physical and electrical design disciplines. Pacific Northwest October 2009. Successful operation of entire power system depends to a considerable extent on efficient and satisfactory performance of substations. The Association of Electrical Equipment and Medical Imaging Manufacturers. txt) or view presentation slides online. Failures of similar systems can be subjected to the same analysis procedures that are conducted at the asset level. Warren, James D. Underground vs. 22 (Size of Cable for Single Motor): Size of Cable for Branch circuit which has Single Motor connection is 125% of Motor Full Load Current Capacity. Many electrical design projects start with an idea that emanates from the marketing and sales department or the research and development division within a company. June 9, 2009. Manufacturer’s approved assembly drawings relating to the physical arrangement of the electrical service equipment. Detailed Syllabus for Substation Design Course, Our Syllabus is Comprehensive,Structured and aim to build design career in EPC Companies,AEDEI Syllabus bases on the EPC Industries , All the Content and syllabus are realated to the industries, AEDEI is providing priactical projects on substration design. Calculates space and zone loads 24-hours a day for design days in each of the 12 months. Get an introduction to technical requirements, configuration philosophies, design practices, information sources and work processes. 7 IEC Israel Electric Corporation, unless otherwise stated. This worksheet includes general data that must be known in the starting of Grounding System Design Calculations of AC Substations. 5 Mode of supply 36 used to transport electrical power between Substations or between Distribution Planning Standard DPS. com, India's No. Complex electrical calculations which by hand take hours or days to perform can be done accurately in minutes or seconds. Finally, earth resistivity may be used to indicate the degree of corrosion to be expected in underground pipelines for water, oil, gas, gasoline, etc. ; Example: what is the minimum rating in amperes for Cables supplying 1 No of 5 hp, 415-volt, 3-phase motor at 0. To maintain the generation of electric power at adequate level the power has to be transmitted in proper form and quality to the consumer. code of practice 101 for distribution substation design version 12. CONSTRUCTION MANUAL FOR SUBSTATIONS CONTENTS 1. Overview 1. Easily select and set protective devices and produce protection studies. substations, feeders and loads. Design Of Earthing System For (Extra) High Voltage AC Power Substations (photo credit: cuttings. The first step in designing a power substation is to design an earthing and bonding system. Under this system, the load form part of the earth grid. All cutting and patching shall be subject to the direction and approval of the Architect. Solar Electric System Design, Operation and Installation An Overview for Builders in the U. cost is principally due to power lost through electrical resistance. PDF | This third edition of the book has updated 15 of the 20 chapters from the previous edition and added two new chapters on recent technology: Energy Storage and the Role of Substations in. 4 System kV, Line-to-Line 4. Electric power may flow through several substations between generating plant and consumer, and may be changed in. 0 data assumed for calculation:. The calculation is performed according to Cenelec. chapter 1: general requirements. An important aspect of substation grounding system design is the calculation of the ground resistance offered by the grounding grid, and the values of the mesh and step voltages on the surface. electrical equipment such as computer racks, control panels, lighting, substations, etc. 0 contents page 1. 56,319 Electrical Engineer jobs available on Indeed. Long Beach City College prepares students for entry-level employment in numerous electrical and electrically related trades. txt) or view presentation slides online. Finally, earth resistivity may be used to indicate the degree of corrosion to be expected in underground pipelines for water, oil, gas, gasoline, etc. The Electrical Distribution System Notes Pdf - EDS Pdf Notes book starts with the topics covering Introduction to distribution systems, Radial and loop types of primary feeders, Rating of distribution substation, Derivation for voltage drop and power loss in lines, Objectives of distribution system protection, General coordination procedure. 2 Calculation of short circuit and coordination of the protections 67 Theory behind calculation of the short circuit current. Design Engineer is responsible for correcting devices that do not coordinate with the manufacturer. • IEEE Standards Interpretation for IEEE 605™-1998, IEEE Guide for Design of substation Rigid-Bus Structures • IEEE Standards Interpretation for IEEE 605™-2008 IEEE Guide for Bus Design in Air Insulated Substations • IEEE 693™-2005, IEEE Recommended Practice for Seismic Design of Substations. Not all the experiments have been covered here though they are operational in the laboratory. Substation safety issues are reviewed, and trainees are introduced to one-line diagrams used in the power industry. Electrical resistance converts electric power into thermal energy, which is lost to the atmosphere. The installing electrical contractor is responsible for providing feeder length and routing deviations from the design to the Design Engineer as these affect the calculations. Substation Bus Configurations & Substation Design Recommendations 1. Ghoneim1,3, 2,3Kamel A. Transmission lines ! Connectors ! As we transport energy energy gets lost ! Resistance of the wire " lossy cable ! Radiation (the energy radiates out of the wire " the wire is acting as an antenna RF Design We look at transmission lines and their characteristics. Definition: The electrical substation is the part of a power system in which the voltage is transformed from high to low or low to high for transmission, distribution, transformation and switching. Step by Step Lighting Design calculation tutorial. 3 Current-Limiting Fuse Selectiona 2. It is associated with so-called "lagging" power factor because current is behind the voltage. The apparent power S in kilovolt-amps is equal to phase current I in amps, times the line to line RMS voltage V L-L in volts, divided by 1000: S (kVA) = √ 3 × I (A) × V L-L(V) / 1000. Substation Structure Design Guide provides a comprehensive resource for the structural design of outdoor electrical substation structures. 1 Job Portal. 2 Needs of transformer short-circuit current calculation Today more than ever before, the electricity grid is developing so quickly — the power plant capacity, the substation capacity and electricity loads, as well as load density, sustainably grow. Design and Analysis of Substation Grounding Grid with and without Considering Seasonal Factors using EDSA Software Mithun Mondal, Dr R. SUBSTATION The grounding grids of all the W. If we look around we are surrounded by many things which illuminate our life with happiness electrical products are one of them we buyelectric with the vision to bring ease in electrical shopping of a common man we have added wide range of electrical products in our basket. The Handbook of Electric Power Calculationsprovides detailed step-by-step calculation procedures commonly encountered in electrical engineering. Two methods are presented. HV Substation Earthing Design for Mines 102 Figure 2: Electrical Connection between mine sub and load A. Applying our deep market sector insights and collective design, consultancy, engineering, project and management services we work in partnership with our clients to deliver. Over the past five Code cycles, this article was extensively revised to organize it better and make it easier to understand and. annexure 2. Manufacturer’s approved assembly drawings relating to the physical arrangement of the electrical service equipment. Practical transformer design requires knowledge of electrical principles, materials, and economics. ansi/ieee std 80-1986. Electrical Design Calculations. Developed substation layouts, grounding, underground duct bank layouts, perform cable pull tension calculations, overhead tray layouts, lighting and area classification studies. Using Primary data like area to be earthed, soil resistivity, diameter of earth rod, primary calculation is done and design is finalized based on safety criteria step and touch potential. Volume III, Conductors and Bus Design. Essentially, electrical current passing through a conductor raises its temperature and this heat bleeds away as lost energy. Handbook of electrical engineering : for practitioners in the oil, gas, and petrochemical industry / Alan L. Even though a product requires an electrical power source and uses electrical or electronic compo-nents, it should not present an electrical shock hazard to the user. Standard of High Voltage Electrical Clearance Conceptual Design for 1 15/22 kV. it looks like you want design manual for FREE. TN System Under the TN system, the substation transformer neutral is earthed and the electrical load frames are connected to neutral. ire F 5 sprinklers are generally not required in electrical rooms when only dry-type electrical 6 equipment is used (NFPA 13, article 8. The treat-ment throughout the Handbook is practical with very little emphasis on theory. The number of 500 kV substations in the. All the required minimum distances throughout the whole substation can now be automatically determined based on the 3D model processed by the Phase Checker. Typical substation electrical design services include: • Substation layout – sizing and layout, control panel plan and elevation design, equipment foundation and oil containment design. The objective of Electric Power Substations Engineering is to provide an extensive overview of substations, as well as a reference and guide for their study. o Local & Foreign Design & Drawing 5. Adjustable device setting will be provided to the installing electrical. Design calculations establish minimum guidelines and requirements for generating electrical calculations on projects. CONSTRUCTION MANUAL FOR SUBSTATIONS CONTENTS 1. Voltage Levels of AC Substations d. After design and installation of transformer differential relay, it is essential to prove and validate its circuit prior to substation energization. We also provide structural steel drawings and calculations and provide final. As a side note, you can also use the phase checker to see if all electrical conductors are correctly connected. to be a equipotential space, such a big amount of grounding conductors embedded in the ground produces a very low W. The electrical drawing and schematics area discusses in depth the topics of logic diagrams, ladder diagrams, cabling and wiring diagrams and electrical documentation. Substation and Cable Route Design Report. marked with their electrical ratings, including their SCCR. ELECTRICAL SYSTEM DESIGN for HIGH-RISE BUILDING These buildings distinctively differ from industrial buildings for manufacturing with regards to electric utilization equipment installed and the number of floors. He is Freelancer Programmer of Advance Excel and design useful Excel base Electrical Programs as per IS, NEC, IEC,IEEE codes. The armouring of such cables is usually earthed to the substation earthing grid at both ends. n The National Electrical Safety Code® requires grounding metal fences used to enclose substations with energized electrical conductors or equipment. Typical substation electrical design services include: • sizing and layout, control panel Substation layout - plan and elevation design, equipment foundation and oil containment design. At least through the 1980s, utility engineers in the Midwest estimated. 16 System kV, Line-to-Line 4. IAEI, as the keystone of the electrical industry, is a membership driven, non-profit association promoting electrical safety throughout the industry by providing premier education, certification of inspectors, advocacy, partnerships and expert leadership in electrical codes and standards development. 1 Campus Planning To be effective, planning for the MV Distribution System needs to be an ongoing process integral with the schematic design of all electrical infrastructure modifications and additions. Executes Design and Engineering for a Multitude of Industries in setting up of Process Plants/ OEM integrated engineering, wherein Cross Functional Engineering Functionality (such as Process, Civil, Mechanical, Piping, Electrical, Instrumentation and Project Management) is a core competency requirement. sample calculation for the design of earthing mat for a 132/25kv. Busbar Trunking System (BBT) o Design & Drawing, Costing & Sales Proposal 7. Part 1 also provides an overview of substation major equipment, explaining the mission, and arrangement of each component. HV Substation Design: Applications and Considerations IEEE CED Houston Chapter 2012-2013 Electrical System Substation - A set of equipment reducing the high voltage of electrical power transmission to that suitable for supply to consumers. ( electrical calculations ) the basic concept behind this booklet is to provide the simplest way to find out the electrical calculation. The objective of site work design for a substation yard is to provide an easily accessible, dry, maintenance-free area for the installation and operation of electrical substation equipment and structures. substations, feeders and loads. Resistance Grounding Systems are used in industrial electrical power distribution facilities to limit phase-to-ground fault currents. The equivalent circuit model of the AC railway is presented in Figure 1. formulae for calculation of earthing grid based on ieee guide for safety in ac substation grounding, no. electrical control systems Training Next step Learning Path Electrical engineering, computer science (engineer level) Prerequisites • How to specify an electrical control system that optimizes operations and maintenance of a plant. Handbook of electrical engineering : for practitioners in the oil, gas, and petrochemical industry / Alan L. 3 equipment through the building from electric room to exterior shall be provided. This manual offers the most current. A voltage transformer theory or potential transformer theory is just like a theory of general purpose step down transformer. formats which we accept are PDF files, AutoCAD files, GIF or JPEG files, pictures, photos, scanned images, hand-drawn sketches and electronic files. o Temperature rise calculations for ACSR / Tubular busbar o Corona Surface voltage gradient o Aeolian vibrations of tubular busbar o Earthing design for switchyard o Short circuit force calculation o Wind pressure calculation. PROGRAM ELEMENT NUMBER 5d. Arc-Flash and Other Electrical Safety Hazards 27 Electrical Safety Hazards 27 Electric Shock 27 Arc-Flash and Arc Blasts 28 Arc-Flash Metrics 29 Arc-Blast Effect 31 Light and Sound Effects 31 Electrical Hazard Analysis 32 Shock Hazard Analysis 32 Approach Boundaries 32 Flash Hazard Analysis 34 Arc-Flash Calculations 35. Principles of Substation Design and Construction. Substation Design Solution. Maintaining, testing, and inspection a proper grounding system for the electrical power substation; What are the Goals? By the end of this training course, participants will be able to: Design, install, commission, test, operate, control and maintain HV/MV substations in a professional manner. The substation earthing system is necessary for connecting neutral points of transformers and generators to ground and also for connecting the non current carrying metal parts. ABSTRACT - The thesis deals with the analysis of Construction of Power Lines and Substation Switchyard of 33/11 KV. 8 “as built” drawings, training and o&m manuals 7. Substation Design Solution. (A) Design and Documentation. The East China Electric Power Design Institute (ECEPDI) has made the transition from 2-D to 3-D and has designed the world's largest underground substation using Intergraph's SmartPlant 3D engineering and design software. Take China as an example. HIGH VOLTAGE ELECTRICAL SUBSTATIONS: A "Road Map" to the Engineering Design, Preparation of Bid Documents, Bid Process and Construction Supervision by Linares M. Safety criteria calculations based on IEEE and IEC methods. Research and Innovation related publications This publication series gives an overview of the built environment research and innovation activities funded under the various BCA R&D grants, with highlights on the novelty behind the technology solutions, demonstration projects, and research teams. 3 Current-Limiting Fuse Selectiona 2. Figure 3 represents the connection under TN system. 34 Expected impact of future grid concept on substation management B3. Voltage Transformer or Potential Transformer Theory. Power System Structure. Figure 1: Equivalent circuit model of the AC railway The equation regarding the supplying status from a single substation is given with Equation (1). o Local & Foreign Design & Drawing 5. INTRODUCTION Good substation earthing is essential for the safe and reliable power system. –It is fueled by increased reliability reporting requirements, need to operate the system closer to its design limits, increased efficiency requirements, and tendency to monitor. Adjustable device setting will be provided to the installing electrical. Accurate potential analysis using graphical techniques. 31 1075 Rev. chapter 1: general requirements. For existing. The annual ATIS Protection Engineers Group (PEG): Electrical Protection of Communications Networks Conference presents solutions based on the latest electrical protection practices and applications in today’s networks. November 8, 2017. Real-world examples and in-class exercises will further enhance your understanding of this subject and prepare you for on-the-job challenges. 3 primary power distribution 3. Abstract—This paper presents basic guidelines on design considerations for wind power plant substation and collector system based on redundancy, reliability, and economics. Lightning protection is excluded from the scope of this calculation (refer to the specific lightning protection calculation for more details). Substation grounding system design studies are increasing as available fault currents increase on today’s electrical power grid. 37 Internal arc effects in medium voltage switchgear (1-52kV) - mitigation. Practical transformer design requires knowledge of electrical principles, materials, and economics. HV Substation Design: Applications and Considerations IEEE CED Houston Chapter 2012-2013 Electrical System Substation - A set of equipment reducing the high voltage of electrical power transmission to that suitable for supply to consumers. The electrical installation handbook is a tool which is suitable for all those who are interested in electrical plants: useful for installers and maintenance technicians through brief yet important electrotechnical references, and for sales engineers. The safe use of electricity is dependent on well engineered electrical protection systems and well engineered earthing systems. The main objective of the grounding system for safe and effective operation is to provide a path for high fault current due to lightning or electrical disturbance to ground. code of practice 101 for distribution substation design version 12. Then, during the architectural and environmental design processes following the electrical design, the building architects or urban designers focus more on the influence of the new substations than on the existing soundscape [10,11], visual perception, and comfort degree of the whole community [12,13]. 45 (water/cementitious ratio). The earthing system provides a reference potential for electronic circuits and helps reduce electrical noise for electronic, instrumentation and communication systems; This calculation is based primarily on the guidelines provided by IEEE Std 80 (2000), "Guide for safety in AC substation grounding". Save settings to file for later retrieval. ELECTRICAL PLANNING AND DESIGN FOR GEOTHERMAL POWER PROJECTS. Finally, earth resistivity may be used to indicate the degree of corrosion to be expected in underground pipelines for water, oil, gas, gasoline, etc. Prepared by the ASCE Subcommittee on the Design of Substation Structures, this new manual offers current recommendations developed by substation structure designers Utility engineers, structural and electrical engineers, and anyone that works in the field of transmission line substation design will benefit from this manual. the design of grounding grids. 0 DG260533 Electrical Materials and Methods. The design guidelines contained herein are provided as an aid and reference for the engineering and design services outlined. barr Floodlighting calculations 490 Lighting design for interiors 491 -Handbook of Electrical Installation Practice. Today’s competitive electric power market puts a premium on reliability, efficiency and low cost. Figure 1-1. Auxiliary DC Control Power System Design for Substations Michael J. o Temperature rise calculations for ACSR / Tubular busbar o Corona Surface voltage gradient o Aeolian vibrations of tubular busbar o Earthing design for switchyard o Short circuit force calculation o Wind pressure calculation. 7 shutdowns of utilities 7. Re: HV substation design and calculations manual 04/18/2010 2:44 AM Totally agree, every human being is not born with an electrical degree ,so start learning no matter what the odds are. Small transformers, under 10 kVA, may be designed using handbook data and pencil-and-paper calculations, but larger or mass-produced units are often designed with extensive computer aided modeling (CAM). Abstract—The most critical component of a protection, con-trol, and monitoring system is the auxiliary dc control power system. 1 Project Scale. Determine the actual fault current which flows into the grid (considering fault current distribution) for a safe and economic design. System basic engineering: short circuit calculations, load flow studies, motor starting studies. Design Review Checklist. 45 (water/cementitious ratio). An important aspect of substation grounding system design is the calculation of the ground resistance offered by the grounding grid, and the values of the mesh and step voltages on the surface. made, for example, when a new electrical unit is being constructed; a generating station, substation, transmission tower, or telephone central office. Classification of Major Event Days Prepared by: Cheryl A. Electrical Engineering Department, Birla Vishvakarma Mahavidyalaya (BVM) Engineering College,. It is associated with so-called "lagging" power factor because current is behind the voltage. (A) Design and Documentation. 3 Current-Limiting Fuse Selectiona 2. Definition: The electrical substation is the part of a power system in which the voltage is transformed from high to low or low to high for transmission, distribution, transformation and switching. For fulfilling these huge power demands the modern time requires creation of bigger and bigger power generating stations. The first step in designing a power substation is to design an earthing and bonding system. Pile volume can best be estimated by determining the area of the base and then multiplying by the average height of the pile. Indeed without these systems electricity would be too dangerous to use. Introduction to Substation Earthing Grid. Electric utility and power distribution companies work with local planners to design and deliver electrical power to the residential neighborhoods. Installation 70–231 III. Typical substation electrical design services include: • sizing and layout, control panel Substation layout - plan and elevation design, equipment foundation and oil containment design. Electrical substations are supplementary parts of electricity generation systems, where voltage is transformed from high to low and vice verse using transformers. Internal Delimitations 2. Electric Power Systems is a NETA Certified, Independent Electrical Testing & Engineering Organization. Worked in the electrical group involved in engineering and design of a coal gasification plant. Substation and Cable Route Design Report. Calculations have been provided by the HIFREQ and FFTSES computer software. Figure 3 represents the connection under TN system. Primary of this transformer is connected across the phase and ground. Power System Protection Manual Note: This manual is in the formative stage. Protected Data Subject to Disclosure Restrictions See Protected Rights Notice on Cover Page. Switching Station - A set of equipment used to tie together two or more electric circuits. More detailed cost-estimating approaches are recommended when more detailed design information is available. Irfan Khan M Tech. • Revised calculations shall be submitted at the 50% construction document stage. This raises design considerations for overhead lines for long distance transmission cables and underground ones which deliver energy from the step-down substation to the user. Learn step-by-step the design and construction process of the substation, from initial site review and selection, to substation start-up and commissioning. 31 1075 Rev. 1 pa electrical technical documents. The basic design quantities of the grounding grids are the ground resistance (R g), touch voltage (V t), step voltage (V s) and the cost of the grounding system design. The most common snubber circuit is a capacitor and resistor connected in series across the switch (transistor). Unit Substations: Refer to Sections D5000 and D5010. electric trains from London to Bristol by the end of 2016, from London to Nottingham and Sheffield by 2020 and between Leeds and Manchester by 2018. 8 “as built” drawings, training and o&m manuals 7. Improving reliability occurs at an increased capital cost but brings with it the expectation for improving availability, decreasing downtime and smaller maintenance costs, improved secondary. Substation Design and Calculations Whilst, iEngineering Group is the authorized distributor of Substation Design Suite (SDS) software, iEngineering also offers the following design and engineering services;. The design guidelines contained herein are provided as an aid and reference for the engineering and design services outlined. is installed at the substations to ensure rapid isolation of any fault in transmission lines and substation equipment, so that the power supply for electric traction is maintained under all conditions. After design and installation of transformer differential relay, it is essential to prove and validate its circuit prior to substation energization. The design is good if the voltage drop is 5% of 220 V, where 9- The voltage drop = the voltage drop on the riser of the building box + the voltage drop on the feeder between the furthest building box and the distribution box + the voltage drop between the furthest distribution box and the transformer. Grounding Grid Design Using MATLAB for Power Substations Video 5 -Earthing of AC substation Part-5, Design Calculation Example-3 Ratss AESQUARE ALL ABOUT ELECTRICAL ENGINEERING. With every job, however, we provide and check bus short-circuit and mechanical loading calculations, NESC loadings, and electrical clear-ances. One suitable mitigation method is attenuation with distance. Standard of High Voltage Electrical Clearance Conceptual Design for 1 15/22 kV. 8 Power Factor. Air Insulated. Construction Specifications –233 CONTENTS 2014 Edition NATIONAL ELECTRICAL CODE 70–3 DRAFT. The calculation models for Segment D of Alternative 1 include appropriate adjustments to the imported file for power flow direction and north/south edges of ROW. com your electrical E-store. General rules of electrical installation design: Worked example of cable calculation (Schneider Electric). Our Substation Design solution reduces the amount of time to complete design and minimizes errors that cause rework during. Using a # 12 gauge wire from Table 9 in the NEC. Base Design Phase The base design phase is a period of 4-6 weeks of preliminary design following the issue of Purchase Order or award of Contract. C – Floodlighting Units 22. Then, during the architectural and environmental design processes following the electrical design, the building architects or urban designers focus more on the influence of the new substations than on the existing soundscape [10,11], visual perception, and comfort degree of the whole community [12,13]. 31 Air insulated substations design for severe climate condition WG B3. 1 Energy Efficiency standards, and building Codes. Developed substation layouts, grounding, underground duct bank layouts, perform cable pull tension calculations, overhead tray layouts, lighting and area classification studies. The principal and design of transformer differential relaying has been covered and described in many literature and manuals and it is not the scope of this paper [1]–[4]. In any substation, a well designed grounding plays an important role. • IEEE Standards Interpretation for IEEE 605™-1998, IEEE Guide for Design of substation Rigid-Bus Structures • IEEE Standards Interpretation for IEEE 605™-2008 IEEE Guide for Bus Design in Air Insulated Substations • IEEE 693™-2005, IEEE Recommended Practice for Seismic Design of Substations. K Mehta ebook" in pdf format for free download ?. The values of these parameters have to be kept within certain established Emits, keeping. With every job, however, we provide and check bus short-circuit and mechanical loading calculations, NESC loadings, and electrical clear-ances. One suitable mitigation method is attenuation with distance. There are two phases. substation grounding grid design. division k. Our goal is to provide practical, real-world application and implementation expertise as the ”take away” for all attendees. Abstract The main purpose of this paper is to acquaint the reader with various types of grounding systems prevalent in an Electrical substation and their importance. The function of an earthing and bonding system is to provide an earthing system connection to which transformer neutrals or earthing impedances may be connected in order to pass the maximum fault current. electrical product. INSTRUCTIONS: This bulletin is an update and revision of previous REA Bulletin 65-1, "Design Guide for Rural Substations" (revised June 1978). Page 10 of 22 2. Volume II, Physical Layout. KLM Technology Group Project Engineering Standard ELECTRICAL DESIGN CRITERIA (PROJECT STANDARDS AND SPECIFICATIONS) Page 3 of 29 Rev: 01 June 2011 In addition to the general codes and standards listed above, the following specific. Basic of 400KV Substation Design - Free download as Text file (. Take China as an example. Weld Weight and Area Spreadsheet Calculator Calculations for Double V, Single V, Compound V,. - To prepare design packages for GIS, Transformers and EPS substation contractors for Procurements and. The installing electrical contractor is responsible for providing feeder length and routing deviations from the design to the Design Engineer as these affect the calculations. DESIGN OF GROUNDING SYSTEMS IN SUBSTATIONS BY ETAP INTELLIGENT SOFTWARE N. Conductor sag and tension, according to conductor type and size. NFPA 70 National Electric Codes, Latest Edition 4. 8 Power Factor. The substation design manual is not intended to replace Asset Management Standards, but rather to act as a reference document that cross-references existing standards and process documentation and plugs any gaps where Asset Management documentation does not exist. Prepared by the ASCE Subcommittee on the Design of Substation Structures, this new manual offers current recommendations developed by substation structure designers Utility engineers, structural and electrical engineers, and anyone that works in the field of transmission line substation design will benefit from this manual. tabatabaei@gmail. 31 1079 Rev. MIT's Project Managers, design consultants and MIT Stakeholders will use this HANDBOOK as a working template for the ongoing building system design and review process throughout the design and construction. 2) The electric field exerts a force F E = q E on any other charges in presence of that field. introduction 1 2. made, for example, when a new electrical unit is being constructed; a generating station, substation, transmission tower, or telephone central office. 31 1077 Rev. Key Words: design, electrical, geothermal, planning ABSTRACT This paper examines electrical planning required for successful geothermal electrical power generation projects. Sakis Meliopoulos. substations, and other cooperative projects. Graph 2: Comparison data predicted by ALCOA process and Trimble calculations for one hour and 10 years. Distribution Network Standard. Hence substations in general can be considered as heart of overall power system. IAEI, as the keystone of the electrical industry, is a membership driven, non-profit association promoting electrical safety throughout the industry by providing premier education, certification of inspectors, advocacy, partnerships and expert leadership in electrical codes and standards development. Irfan Khan M Tech. Plant Electrical Systems Electrical System Engineering Electrical Balance of Plant (eBoP) A huge demand on the provision of an uninterrupted power supply is nowadays a MUST. Design Engineer is responsible for correcting devices that do not coordinate with the manufacturer. made, for example, when a new electrical unit is being constructed; a generating station, substation, transmission tower, or telephone central office. 2 Needs of transformer short-circuit current calculation Today more than ever before, the electricity grid is developing so quickly — the power plant capacity, the substation capacity and electricity loads, as well as load density, sustainably grow. 31 1078 Rev. This raises design considerations for overhead lines for long distance transmission cables and underground ones which deliver energy from the step-down substation to the user. The electrical drawing and schematics area discusses in depth the topics of logic diagrams, ladder diagrams, cabling and wiring diagrams and electrical documentation. Design requirement of over 600V: medium voltage 6. 1 Estimate of the power supplied to a small industrial factory 67 14. The sole purpose of substation grounding/earthing is to protect the equipment from surges and lightning strikes and to protect the operating persons in the substation. PROGRAM ELEMENT NUMBER 5d. FR Clothing & Protective Equipment – Contractor Guideline 03-31-2016 Version 5 3 Substation FR PPE As a general rule, 8 cal/cm2 FR clothing system without FR head or face protection (i. Therefore using these building blocks, the engineer can design a great variety of electrical substations very quickly. of progressively minimising exposures to electric and magnetic fields generated by 50-Hz power lines. Prepared by the ASCE Subcommittee on the Design of Substation Structures, this new manual offers current recommendations developed by substation structure designers Utility engineers, structural and electrical engineers, and anyone that works in the field of transmission line substation design will benefit from this manual. He is Freelancer Programmer of Advance Excel and design useful Excel base Electrical Programs as per IS, NEC, IEC,IEEE codes. electrical product. cabinets) if they are made of. Scholar, Electrical and Electronics Engineering Department, AISECT UNIVERSITY Bhopal, MP, India. Electrical substations are supplementary parts of electricity generation systems, where voltage is transformed from high to low and vice verse using transformers. Parton has been the preferred book for students looking to gain an understanding of electrical theory and calculations for many years. Overhead lines 1. The treat-ment throughout the Handbook is practical with very little emphasis on theory. Tikhodeev ©Encyclopedia of Life Support Systems (EOLSS) into substation equipment systems. Two transformers of 154 kV / 25 kV are present in the substations and the transformers can operate as back-up [1-3]. arc-rated face shield) is sufficient for working within a substation transmission except as noted in the Substation Exception Tables. In high and medium voltage Air Insulated Substations (AIS) the electromagnetic field, which causes are the static charges of bare cable and conductors and by the atmospheric conditions (surges), induce voltages at no-live parts of the installation that create potential differences between metallic parts and ground and also between different points of. Successful operation of entire power system depends to a considerable extent on efficient and satisfactory performance of substations. Auxiliary DC Control Power System Design for Substations Michael J. General -231 II. Eduardo has international experience in substation construction, O&M, and design in substations up to 500. Design and Construction of 33/11 KV Line & Substation Mohammad Sharique Nawaz Guide- Prof. The substation design manual is not intended to replace Asset Management Standards, but rather to act as a reference document that cross-references existing standards and process documentation and plugs any gaps where Asset Management documentation does not exist. chapter 1: general requirements. cabinets) if they are made of. Figure 1-1 illustrates the typical methods for crossing conductors within a schematic diagram. What Structural Engineers Should Know about Substation Rigid Bus Design. As the line length increases, so does the resistance loss. Protective Relaying Philosophy and Design Guidelines Substation Transformer Protection Protective Relaying Philosophy and Design Guidelines. arc-rated face shield) is sufficient for working within a substation transmission except as noted in the Substation Exception Tables. Design Engineer is responsible for correcting devices that do not coordinate with the manufacturer. Home / Download Center / Electrical Engineering Books and Technical Guides / Power substation guides / High voltage substation design and application guide Substation Design The purpose of this document is to provide a general guide to the design of an Air Insulated Switchgear (AIS) and a Gas Insulated Switchgear (GIS) of an AC substation. Calculations were conducted to estimate the electrical load for the proposed development.