Table 10 pole mounted distribution transformer mv fuses. Ep 16 00 00 01 sp pole mounted distribution transformer. We can also provide new pole mounted transformers to 500 kva and 34. D substation standards lighting fixture pole and bracket mounting 19. It is a distribution sub station placed overhead on a pole. Ground mounted substation is a substation that is either a major distribution substation.
Drawing labels, details, and other text information extracted from the cad file translated from spanish. Detailed investigation of substation and preparation of boq to be done by the bidder. Eaton s cooper power series comprehensive polemounted capacitor bank solutions can be tailored to meet customer application needs. Horizontally mounted doublebreak switch with grounding switch. The substation earthing database contains the classification hot or cold of all grid and. The insulating material of pvb is hydrophobic cycloaliphatic epoxy hcep, the next generation of cycloaliphatic epoxy cep. The manual is applicable for all substation projects regardless of internalexternal design delivery mode. Most utility power companies treat transmission and distribution lines as separate entities. The invention of a practical efficient transformer made ac power distribution feasible. This document is part of the sp distribution manweb design manuals and does not have a. Depar tures are equipped with thermalmagnetic circuit breakers d165 for a transformer of 100 kva and d265 for a 160. Estimating of a pole mounted substation prepared by. Pole mounted switches require only two throughbolts and one or two pole bands and lag screws for stable support.
Introduction estimating is defined as a method by which we can get an approximation of the material, i. Overhead design and construction fundamentals presenter. The use of high quality magnetic core steel and innovative core. Polemount multitap substation transformer all vantran polemount transformers feature sealed tank construction and conform to nema and ansi c57. Reception, installation, operation and maintenance manual for. This customized bank package offers overall system improvements such as improved power factor, system capacity release, loss reduction, voltage stability, improved power flow and cost savings. Depending upon requirements, transformers may be connected between two phases of a threephase system two high voltage bushings or from one phase to ground single high voltage bushing. Our product lines include pole and pad mounted, single and threephase solutions, as well as primary and secondary substation transformers, cast coil transformers network transformers and voltage regulators. The earthing design for secondary substations and lv networks including lv overhead networks are covered respectively in eds 060014 and eds 060016. Two pole mounted transformer substation dwg block for autocad.
Voltage regulators the fast cycle voltage regulator vrfc is a new edition to ges portfolio of polemounted voltage regulators and is based on the most popular utility configurations. Analysis of polemounted mvlv transformer grounding eep. Twopolemounted transformer substation dwg block for. This chapter presents general information concerning the design of the substation physical arrangement. The vrfc is manufactured with a standard design, providing an optimized feature set, with shortcycle lead times at a competitive based price point. These two type of mounting of dt substation are discussed as below. Two polemounted transformer substation dwg block for autocad. Our polemounts are designed and built one at a time for your specific application.
Simple addition of the handle and the vertical pipe sections completes the installation. Electrical substation components list diagram, working. I would agree that a pole mounted transformer is, strictly speaking, a substation but would generally be called a pole mounted transformer. The key diagram of this sub station can be explained as under. The hv network connection for both pole mounted transformers and hv overhead.
Scholar, electrical and electronics engineering department, aisect university bhopal, mp, india. Often, it is based on transformer capacity, other times. Substation maintenance i substation maintenance ii when registering use promo code. In a pole mounted transformer substation, the maximum number of departures low voltage is fixed at two.
This bulletin is an update and revision of previous rea bulletin 651, design guide for rural substations revised june 1978. How we can ground the power distribution systems and. It is the cheapest form of substation as it does not involve any building work. K substation standards switch operating and equipment platforms electrical design and details 20. Primary and secondary electrical distribution systems. Technical specification construction of 3311 kv primary. The pole mounted substations are majorly distribution substations which are constructed on the structure of two, four, or sometimes six or more poles. A solution for every need abb portfolio for mv outdoor and. It is usually of the three pole, singlethrow, groupoperated type. We can design our air type substations using wooden, steel poles or lattice towers and come complete with a wide range of accessories such as step down transformers, mv switchgear, surge arrestors and lv pole mounted panels. Voltage regulators the fast cycle voltage regulator vrfc is a new edition to ges portfolio of pole mounted voltage regulators and is based on the most popular utility configurations. In such substations, there is a need of mounting distribution transformers over poles alongside isolator switches. One off designs from substation to substation suite of structures long spans typically 300 metres and longer. What one company or customer calls a substation may not be what another company or customer defines as a substation.
Abstract the thesis deals with the analysis of construction of power lines and substation switchyard of 3311 kv. K substation standards switch operating and equipment platforms electrical design and. 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 functioning of the system. Integer style aldutirupter switches are engineered to be troublefree.
This offer cannot be used towards courses already purchased or added to any other existing discounts. Level 3 accreditation covers the design of electrical reticulation systems and does not require. It covers primary voltages of 11 kv and 33 kv and secondary voltages of 125 v, 250 v and 433 v. It is a distribution substation placed overhead on a pole. Reception, installation, operation and maintenance manual. Pad mounted voltage regulators also provide all the functionality of traditional roundtank pole mounted and substation voltage regulators, with the convenience of padmounting. Pdf design of mvlv substation transformer researchgate. Distribution lines are those lines that run from a substation to the consumer via pole mounted transformers or the like. Ns122 pole mounted substation construction ausgrid. Technical specification construction of 3311 kv primary substations. The unified facilities criteria ufc system is prescribed by milstd 3007 and provides planning, design, construction, sustainment, restoration, and modernization criteria, and applies. The regulators are outdoor, oilimmersed, steptype voltage regulators that provide 10% regulation in 32 steps of approximately 58% each. Fireproofing the substation ceiling and sealing the cable ducts against transformer oil leakage is vital in the event of a fire.
The key diagram of this substation can be explained as under. Soil in immediate vicinity of substation footings must be stable and free from obstruction special requirements apply for pole. Two poles mounted substation tss2x is used as an endpoint or continuous for overhead mv power lines with voltage up to 35kv. Design guide for rural substations usda rural development. Transrupter ii transformer protector uses the existing relays, structure, and foundation. The 3phase, 3wire 11 kv line is tapped and brought to the gang operating switch installed near the substation. Technical specification construction of 3311 kv primary sub. For design, the transverse load at first crack shall be taken as not less than the value of the working load.
Other are light industrial and commercial lighting applications. Analysis of pole mounted mvlv transformer grounding on photo. This standard shall apply to all planning, design and construction processes related to all new, upgraded and retrofitted installations of 11kv pole mounted transformers within energex. This standard details the design requirements for the earthing of 33kv, 11kv and. Placement of the pts and cts on the cluster bracket can be interchanged to suit the job application.
Ns122 pole mounted substation site selection and construction amendment no. It is the most common type of outdoor type substation, designed by. For issue to all ausgrid and accredited service providers staff involved with the design, construction or equipping of pole mounted substations and is for reference by field, technical and engineering staff. Actom has developed a wrap around tank design to reduce the number of welds. Small distribution transformers they represent an economical option for certain networks, particularly those with low population densities. Similarly, a pad mounted transformer in an urban area fed from a reticulation or distribution feeder is a substation but is often described as a minisub. Technical guide the mvlv transformer substations abb group. Pole mounted distribution transformer substation dt. Calling pole mounted transformers a substation is a matter of semantics. Depar tures are equipped with thermalmagnetic circuit breakers d165 for a transformer of 100 kva and d265 for a 160 kva transformer. Any proposed design shall be approved by es networks at the design stage. Ge provides a broad array of distribution transformers to support a variety of applications.
It does not cover 33kv415v substation transformer, ring main unit, aflc cells, pole mounted capacitor bank or master dropout mdo fuses. Abbs polemounted distribution transformers are mounted above ground on poles. Pole mounted substation site selection criteria are listed pole mounted substations for commercialindustrial applications in urban areas shall only be used where existing hv and lv mains are overhead. Model ex is perfect for new substations, as well as for. 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. Pole mounted distribution transformer substation dt ss. From our experience we will be able to advise you the most. Eds 060015 polemounted equipment earthing design networks. The pole mounted substations are generally used for transformer capacity up to 200kva they should be periodically checked for dielectric strength of oil in the transformer and ocb in case of repair the transformer or o.
Twopolemounted transformer substation dwg block for autocad. Transmission lines are those highvoltage power lines that run from power plants to substations, or from substation to substation. It describes various types of substations, illustrates typical layouts, and presents. D substation standards ground cable on tubular steel structures support details 21. This wire is solidly connected to the earth provided at the substation and later on every sixth pole is earthed. Primary and secondary electrical distribution systems critical facilities round table 12th quarterly membership meeting june 2, 2006 david d. Since in mounted transformer operation can be present dangerous conditions. Unless there is a continuous length of hv cable directly back to the primary substation or an existing. A distribution transformer or service transformer is a transformer that provides the final voltage transformation in the electric power distribution system, stepping down the voltage used in the distribution lines to the level used by the customer. The standard railcorp pole mounted substation designs allow for a weight limit of 2240 kg. Outdoor substation a substation which is used for all voltage levels between 55 kv to 765 kv is called outdoor substation. It may be worthwhile to mention here that majority of the distribution substations are of pole mounted type. Polemounted distribution transformers small distribution.
The pvb is a 12kv, threephase, live tank, outdoor pole mounted vacuum circuit breaker with solid dielectric insulator designed for pole mounted or substation applications. Lets discuss in some detail the reasons for the grounding philosophy adopted for pole mounted mvlv transformer substations illustrated in figure 0. It is the cheapest form of sub station as it does not involve any building work. Electrical power substation engineering and layout electrical4u. November this offer can only be applied to courses registered after october 17, 2017 and attended on or before november 30, 2017. Reclosers are a small pole mounted circuit breaker that can contain. Introduction estimating is defined as a method by which we can get an approximation of the material, investment involved, and the time to be taken for the completion of electrification project normally it can be enlisted under following four headings. Key diagram of substation key diagram of 11kv400v indoor. The range includes singlephase pole mounted units of cylindrical design and threephase rectangular units which may be either pole mounted or ground mounted as required. Abbs pole mounted distribution transformers are mounted above ground on poles. Ultimate strength for pole is 39 kn for wood pole and 30 kn for steel pole. Medium voltage products technical guide the mvlv transformer. These transformers typically service urban and rural residential and commercial loads.