See all formats and editions hide other formats and editions. Step up and step down voltage of the distribution network to suitable values for networks operating. Basic concepts of switching in a high voltage yard. Maintenance and operation of an electrical substation of. Distribution substation an overview sciencedirect topics. Substation operation and maintentance alexander publications. Important formulas for designing a substation grid earthing system. Apply to senior electrician, wind turbine technician, technician and more. Hv substation audits project fields contracting engineers. 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. Pdf multicriteria approach for maintenance management in hv. Electrical substation maintenance is a key component of any substation owners electrical maintenance program.
Technical guide the mvlv transformer substations abb group. A substation is a part of an electrical generation, transmission, and distribution system. Siemens highvoltage substations with airinsulated switchgear ais are the costefficient choice for rated voltages of up to 800 kv. Energized substation maintenance incorporated has been meeting the needs of electric utilities and industries nationwide by providing the protection they require but also benefits they desire. Substation maintenance training this 2day substation maintenance training course will cover the maintenance and testing requirements for common substation facilities. Facilities instructions, standards, and techniques. Most of the work performed by high voltage hv substation maintenance electricians and technicians is focused on power circuit breakers pcb. Apr 19, 2016 combining select chapters from grigsbys standardsetting the electric power engineering handbook with several chapters not found in the original work, electric power substations engineering became widely popular for its comprehensive, tutorialstyle treatment of the theory, design, analysis, operation, and protection of power substations. Distribution voltages are typically medium voltage, between 2. Earth clearance this is the clearance between live parts and earthed structures, walls, screens and ground. Tailored maintenance strategy to suit substation maintenance needs abb can provide support to enable optimized maintenance management strategies for substations.
Interconnection of power plants of the national or area electrical grid. Many failures can be detected during the electrical substation maintenance routines, reducing the risk of significant plant downtime, and preventing future problems. The mission of femp is to facilitate the federal governments implementation of sound, cost. Organization will perform maintenance of loop power line breakers. The cross section of the buried cable should calculated in accordance with the value of the phasetoearth short.
Electrical general services substation is a distribution substation from which electric supply is distributed to the different users. 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 nolive parts of the installation that create potential differences between metallic parts and ground and also between different. Other requirements of the substation electrical system 56 10. Apply to low voltage technician, electrician, senior electrician and more. All rus borrowers rus electric staff effective date. As such it is desirable to perform various preventative maintenance activities to ensure the transformer maintains a high level of performance and a long functional life. Design of earthing grounding system in a substation grid. We have over 2500 national high voltage hv connected sites under contract and an average growth of 200 sites per annum. Medium voltage products technical guide the mvlv transformer.
Combining select chapters from grigsbys standardsetting the electric power engineering handbook with several chapters not found in the original work, electric power substations engineering became widely popular for its comprehensive, tutorialstyle treatment of the theory, design, analysis, operation, and protection of power substations. Turn to industrial tests, inc for substation maintenance. Based on a customers selected maintenance strategy, each set of equipment has its own set of detailed maintenance plans. This offer cannot be used towards courses already purchased or added to any other existing discounts. Heres a comprehensive reference on how to operate and maintain all the essential components of substations. Similar to the finepoint circuit breaker conference of old, on. Maintenance of transformers a detailed checklist electrical4u.
We provide a wide range of services to suit a variety of budgets and scheduling constraints. Electrical safety guidance for high voltage systems shtm 0603. Handbook on maintenance of electrical general services. In such cases, substation contains highvoltage switches that allow lines to be connected or isolated for fault clearance or maintenance. Distribution substation a distribution substation transfers power from the transmission system to the distribution system of an area. A power transformer requires various routine maintenance. Solutions for electrical substation maintenance a well planned electrical substation maintenance assures reliable supply and reduction in failures. As defined in the electricity at work act 1989, there is a requirement for hv. It serves a reference by the operators and engineers and a record book for easy retrieval of historical activities and data.
Substation layout consists essentially in arranging a number of switchgear components in an ordered pattern governed by their function and rules of spatial separation. Distribution substations michigan technological university. Handbook on maintenance of electrical general services substation photo credit. A transmission substation connects two or more transmission lines. Review of mathematics involved with protective relays. Ehvehv and ehvhv 1 substations are an important element of the electricity transmission network of a country or of a large area of a country and their functions are. Multicriteria approach for maintenance management in hv. The pass high voltage training centre has been designed to give you this experience, with authentic switchgear, transformers and other hv equipment for you to work with during your programme.
In practice, the neutral points in an hv distribution substation are directly grounded. Every day, facility managers are asked to do more with less. Typically, the logbook must have the date, the name of the operatoronduty, and the activities with their respective time of occurence. Inspection, testing and commissioning of electrical. Thus the branch carrying current i b in the equivalent circuit of fig. Substation maintenance i substation maintenance ii when registering use promo code. Between the generating station and consumer, electric power may flow through several substations at different voltage levels. Substation maintenance is an introductory class for the apprentice relay technician, substation technician or any beginning student that needs an introduction you will learn. Electrical switchgear safety a guide for owners and users this is a webfriendly version of leaflet indg372rev1, published 04 introduction this guidance is for owners and operators of electrical switchgear in industrial and commercial organisations with little electrical knowledge or expertise available inhouse. In a substation there are numbers of incoming and outgoing circuits each having its isolator, circuit breaker, transformers etc. Maintenance notifications and capex project information to support any prospective project submissions. Earthing system is made of a mesh of buried bare copper cable, with additional earth rods, and shall be calculated, being recommended to use ieee std. The objective of the substation audit was to provide site with a nonintrusive evaluation of all high voltage hv equipment for all of their substations. This book is organized as a series of work practices.
The account manager and primary services will coordinate the arrangements between the customer and dte for the installation of the high voltage lines feeding the substation and for the. Management, maintenance strategy, substation equipment. Substation construction guidelines explains the steps involved in building substation and in expanding an existing substation. Our programmes are led by our experienced hv training professionals, each of whom has worked for several decades in the hv industry. A power transformer is the most costly and essential equipment piece of equipment within an electrical substation. This bulletin is an update and revision of previous rea bulletin 651, design guide for rural substations revised june 1978.
This main substation is configured as a double busbar system, allowing maintenance to be carried out on one busbar without having to deenergize the complete station. Safe access to high voltage substations and switchrooms city. Ehvehv and ehv hv 1 substations are an important element of the electricity transmission network of a country or of a large area of a country and their functions are. With substation equipment millions of dollars are at stake large investments in costly equipment as well. Inspections and tests in situ prior to putting into service 61. Basics, maintenance, and diagnostics vii contents continued page 4.
Operation of the hv ac system up to and including 33kv. This handbook explains everything about high voltage substations from their design and construction to the maintenance and the ongoing management. Substation maintenance training the electricity forum. Energized substation maintenance, insulator cleaning. Substation design high voltage substation design is a complex engineering activity that embraces a wide variety of disciplines. Carried out hv electrical testing, commissioning and maintenance on various types of hv electrical equipment in the mining industry, manufacturing sectors, defence, hospitals and research centres, universities, airports, sugar mills, port authorities, power generation, renewable energy and transmission and distribution entities. The simplest case is where all transmission lines have the same voltage. Substations are strategic parts of the electrical system. Identification and clear documentation of any noncompliance witnessed with respect to company and australian standards. Substation maintenance is a branch of the positions of power supply enterprise skills training materials for substation maintenance.
While the coverage is primarily about constructing new substations, much of the material is applicable to existing substations. You need to maximize your assets and minimize outages, often times with a reduced workforce and a tighter budget. Safe access to high voltage substations and switchrooms. It has also to ensured that high voltage and low voltage windings are isolated along with the concerned isolaters. The siemens experts always consider the electrical parameters as well as the environmental conditions to which a. A logbook is a listing of all events and activities done in the substation. Lightening arresters, earthing of equipment and fencing is done for this purpose.
This section of the live working manual deals with the general principles for. The remaining substations in the hv cable ring, which are also located in the city. Nov 17, 2019 a power transformer is the most costly and essential equipment piece of equipment within an electrical substation. Multicriteria approach for maintenance management in hv substations sorina costinas, cristina s orana ionescu, ioana op ris, daniela nistoran, gabriela nicoleta sava. Abb supports customers developing pragmatic longterm maintenance management strategies to improve reliability, minimize service disruptions, enable. Substation equipment maintenance, tests and checkings eep. Safety and protection of equipment as well as working personnel is also a considerable factor. In case transformer is having a tertiary windings, ensure the isolation are.
A mini project report on operation and maintenance of 2202kv substation submitted in partial fulfillment for the award of the degree of bachelor of technology in electrical and electronics engineering submitted by v. Maintenance basis utilizing the epri tier classification for the substation. Solutions for electrical substation maintenance smc. High voltage safety operating procedures for engineers and. In case where all transmission lines have the same voltage. Department of energys federal energy management program femp. Power circuit breaker seminar march 1719, 2020 most of the work performed by high voltage hv substation maintenance electricians and technicians is focused on power circuit breakers pcb. Comparison of gis and ais systems for urban supply networks. There are many conferences and training courses dealing with transformers, but not. They are renowned for highest reliability, economical operation, and low maintenance requirements. November this offer can only be applied to courses registered after october 17, 2017 and attended on or before november 30, 2017. Substations transform voltage from high to low, or the reverse, or perform any of several other important functions. Hvsm offer a full routine, corrective, fault analyses fault repair maintenance service for hv and mv transformers.
Enersol are a high voltage installation and maintenance company specialising in contracts to look after customers high and low voltage equipment whilst taking on the role of authorised person duties if. There are many conferences and training courses dealing with transformers, but not many that offer complete hv circuit breaker training. We also provide a full emergency change out service. Substation operation and maintentance heres a comprehensive reference on how to operate and maintain all the essential components of substations. We carry a number of spare trafos that are available at short notice when required. The input for a distribution substation is typically at least two transmission or subtransmission lines. This comprehensive overview brings these disciplines together to give you an interactive guide to high voltage, air or gas insulated substation design.