Cost sufficient reliability without excessive cost 3. Substation evaluation basics adapted from 2 billington describes. Substations can be of various capacities, voltages, configurations and types depending on what is the application for. Fundamentals of electrical substations and switchgear. We offer high quality individual components or a whole package incorporating all key equipment required for a. These facilities connect the generators to the utility grid and also provide offsite power to the plant. The switchyard is located approximately 850 feet southwest of the right abutment of the dam, and approximately 170 feet higher. The fill for embankment ranges up to 27 feet in depth and the cut for excavation ranges up to 24 feet in depth. Feb 29, 2016 the structural design and layout of the substation, daily operations, ongoing maintenance, and the people working at or visiting the facility must be 100% safe at all times. Dec 25, 2018 the electricity substation is a network of electrical equipment which is connected in a structured way in order to supply electricity to end consumers. The earthing system also ensures that no thermal or.
Design using design manual, specifications, internal standards. Breakers, isolators, earth switch, ct, cvt, wave trap etc brief description of modes of transmission conclusion. Vuspec summary this new comprehensive collection represents the most complete resource available for professional engineers. The first step in designing a power substation is to design an earthing and bonding system go to content earthing and bonding. Design of switchyard nwa free download as powerpoint presentation. Pge is one electrical substation engineering company that is committed to excellence of highquality services using a unique combination of internal and strategic external resources equipped with deep experience that is ideally suited to the engineering and design of power substations. Design guide for rural substations usda rural development.
Substation evaluation basics adapted from 2 billington describes what he considers the five essential steps to be carried out when performing substation evaluation. A description of the design stages, basic design considerations, understanding of the system inputs to design and identifying their sources and establishing main design parameters such as capacity of substation, power frequency and essential supplies, environmental parameters, bus bar schemes signal bus or double bus. Its primary use is to deliver power generated to the grid. There are four major types of electric substations. C substation standards danger sign for shunt capacitors 23. D substation standards ground cable on tubular steel structures support details 21. Basic substation configurations and the components avo training. Ranked 27th in quality of electricity supply source wef.
Distribution voltages are typically medium voltage, between 2. The dielectric coolant shall be listed lessflammable fluid meeting. This document outlines the primary design standard for transgrid substations. Substation definition n critical for generation, transmission, and distribution system n performs several important switching functions n may have various voltage levels before it reaches the customer n owned and operated by an electrical utility or a large industrialcommercial customer. The key steps in the substation designing include switchingsystem, planning and placing of equipment, selection of. By the same analogy we can explain what a substation does. The document is divided into 12 chapters starting from electrical arrangement to lightning and earthing protection. Substation and switchyard both are different and these two switchyard is the inter connector between generation and transmission, and same voltage is mentained in switchyard, substation is the inter connector between transmission and distribution. There is numerous electrical substation components like outgoing and incoming circuitry each of which having its circuit breakers, isolators, transformers, and busbar system etc for the smooth. Substation and switchyard both are different and these two switchyard is the inter connector between generation and transmission, and same voltage is mentained in switchyard.
Bolted connections to bus bars or wires, especially in outdoor switchyards. Design the required electrical interconnections to ensure correct functioning of the substation equipment draw up a list of design inputs for building and structural design engineers plan the support facilities required for the substation electrical substation and switchyard design. An electrical substation is a subsidiary station of an electricity. In the india and abroad employers demand welltrained, qualified substation design engineers that can work in both traditional and emerging technologies. 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. Distribution substations michigan technological university.
The main considerations taking into account during the design process are. Technical guide the mvlv transformer substations abb group. The switchyard is located approximately 850 feet southwest of the right abutment of the dam, and approximately 170 feet higher than the top of the dam. Selection of the location of a substation must consider many factors. Vuspec summary this new comprehensive collection represents the most complete resource available for professional engineers looking for best practices and techniques covering design, construction and operation of devices or assembled gear to establish. Abstract the thesis deals with the analysis of construction of power lines and substation switchyard of 3311 kv. Impact of new grid developments on substation design. This electrical substation and switchyard design course focus on elementary safety standards and practices in substations and switchyard design. What is the difference between a substation and a switchyard. This substation is constructed using steel lattice structures to support strain bus wires and apparatus. Our thanks to cooperative research network of the national rural electric. The ergon energy design philosophy is to provide substations. We provide comprehensive engineering services for electrical systems from 48v to 500kv.
Eysp fundamentals of electrical substation and switchyard design 28012016 mey1sp role and configurations of substations, system studies, switchyard technical specifications. Substation design volume ii physical layout instructor. This bulletin is an update and revision of previous rea bulletin 651, design guide for rural substations revised june 1978. These facilities connect the generators to the utility grid and also provide offsite. Substations can be of various capacities, voltages, configurations and types depending on what is the application for which the substation is being designed. Design the main considerations taking into account during the design process are. The electricity substation is a network of electrical equipment which is connected in a structured way in order to supply electricity to end consumers. Normally stations are where we catch trains or buses. High voltage substation design and application guide eep. K substation standards switch operating and equipment platforms electrical design and details 20.
The substation design manual is not intended to replace asset management standards, but rather to act as a reference document that crossreferences existing standards and process documentation and plugs any gaps where asset management documentation does not exist. The key steps in the substation designing include switchingsystem, planning and placing of equipment, selection of components as well as ordering, support of engineers, structural design, the design of electrical layout, protection of relay, and major apparatus ratings. Compliance with all technical requirements all energize elements comply with the required clearances clearances verify compliance with the last requirements of the national electrical safety code or prepa diseno subw\copy of svc subst profile 2. All rus borrowers rus electric staff effective date. Substation construction manual page 2 of 57 reference ni000401r122 ver 3 ergon energy corporation limited abn 50 087 646 062 ergon energy queensland pty ltd abn 11 121 177 802 4. An electrical substation is the component of a power system with which voltages are transformed for the transmission, distribution, transformation and switching of power. The program electrical substations form role of substations in an important nodal points lightning. To better understand the importance of electrical substations, lets start with a. Eysp fundamentals of electrical substation and switchyard. Substation platform with transformer and electrical equipment converter platform if high voltage hv dc transmission is used.
The electrical substation design is a complex method with full of engineer planning. Responsibilities the group manager works enablement is the process owner responsible for approving this reference. Substation capacitor bank design engineering various locations designed capacitor bank installations consisting of 34. Covers bare conductors, rigid and strain bus design. The project industry advisors with affiliations at the time of. Responsibilities the group manager works enablement is the process owner. The future substation design requires an understanding how both. Electrical drawings steel structural design substation one line diagram power transformers substation protection power switching elements control room session 2.
From the ieee standard dictionary of electrical and electronics terms 3. Covers the general design considerations, documents and drawings related to designing a substation. Substations transform voltage from high to low, or the reverse, or perform any of several other important functions. Iem power systems is a premier supplier of electrical equipment and substation packages. Distribution substation a distribution substation transfers power from the transmission system to the distribution system of an area. 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. The input for a distribution substation is typically at least two transmission or subtransmission lines. Part 1 also provides an overview of substation major equipment, explaining the mission, and arrangement of each component. The design of the transformer shall be such as the dielectric coolant shall be envirotemp fr3 fluid or equal. Pge is one electrical substation engineering company that is committed to excellence of highquality services using a unique combination of internal and strategic external resources equipped with deep.
The manager substation design is the subject matter expert sme for the content and shall. Fundamentals of modern electrical substations part 1. The structural design and layout of the substation, daily operations, ongoing maintenance, and the people working at or visiting the facility must be 100% safe at all times. The first type is the switchyard at a generating station. A 50 hz electrical substation in melbourne, australia. Pmi revision 00 presentation outline understanding basics of switchyard switchyard equipments and schemes components of switchyard.
D substation standards ground cable on tubular steel structures. Scholar, electrical and electronics engineering department, aisect university bhopal. This is showing three of the five 220 kv66 kv transformers, as well as highvoltage transformer fire barriers, each with a capacity of 150 mva. Scholar, electrical and electronics engineering department, aisect university bhopal, mp, india. Electrical substation components list diagram, working. Electrical substation engineering company power grid. A substation is a part of an electrical generation, transmission, and distribution system. Covers the layout considerations, bus configurations, and electrical clearances. Substation capacitor bank design engineering various locations designed capacitor bank installations. It located just outside the power station and operates only at a single voltage level. We have constructed hundreds of highvoltage substations, switch stations and interconnect stations nationwide from 34. We express our appreciation for the support provided by psercs industrial members.
To better understand the importance of electrical substations, lets start with a discussion about the structure of the power systems and their main components. Design of switchyard nwa electrical substation lighting. An electrical substation is the component of a power. Substation platform with transformer and electrical equipment converter platform if high voltage hv dc transmission is used transmission to shore hvac or hvdc submarine cable cable landing hvac or hvdc land cable onshore converter station for hvdc onshore substationinterconnection. Electrical substation components and their workings. Electrical substations form important nodal points in all power networks. Oct 23, 2014 electrical substations form important nodal points in all power networks.