All transformers are oil filled, 65c rise, and designed for usual service conditions per ieee c57. Pdf design of mvlv substation transformer researchgate. 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. For the love of physics walter lewin may 16, 2011 duration. Similarly, a pad mounted transformer in an urban area fed from a. Reclosers are a small pole mounted circuit breaker that can contain. In a pole mounted transformer substation, the maximum number of departures low voltage is fixed at two. 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. Distribution automation handbook prototype elements of power d istribution systems 1mrs757959 4 3 elements of power distribution systems 3.
Electrical4u is dedicated to the teaching and sharing of. In these type of substation fuse protected distribution transformer are mounted on poles along with electrical isolator switches. Scholar, electrical and electronics engineering department, aisect university bhopal, mp, india. The specification for fixed earthing systems within ehv, hv, hvmv and lv substations also applied to terminal towers adjacent to substations and cable sealing end compounds, pole mounted transformer or airbreak switch disconnector installations and pole mounted reclosers with ground level control. It is a distribution substation placed overhead on a pole. From our experience we will be able to advise you the most suitable form of pole mounted substation, from the material requirements to the. Owners supply materials osm 3311 kv power transformers, station 330. In a polemounted transformer substation, the maximum number of departures low voltage is fixed at two. Accordingly, the decision for installation of a pole mounted dt substation or. As the network design and standards authority for nsw transport assets, as specified in. Pole mounted transformers may have lugs allowing direct mounting to a pole, or may be mounted on crossarms bolted to the pole. Outdoor substation a substation which is used for all voltage levels between 55 kv to 765 kv is called outdoor substation.
Ns122 pole mounted substation construction ausgrid. All rus borrowers rus electric staff effective date. For larger transformers we use an h pole configuration which will come complete with all the necessary hardware, cross arms, stay sets and cable accessories according to your on site requirements. Pole mounted substation is the outdoor type cheapest form of substation for voltages not exceeding 33kv in which the equipments are installed overhead on hpole or 4pole structure 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. 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. Single phase pole mounted distribution transformer ermco single phase pole mounted distribution transformers are designed and manufactured in compliance with all applicable ieee and rus standards. Electrical substation components list diagram, working. Distribution transformers english pdf leaflet distribution transformer components product guide english pdf product guide threephase groundmounted transformers drawing for the 1lap016371 english pdf drawing.
The first step in planning a substation layout is the. May 15, 2018 pole mounted substation are mainly distribution substation constructed on two pole, four pole and sometime six or more poles structures. Placement of the pts and cts on the cluster bracket can be interchanged to. Basic substation layout incoming subtransmission lines electric power path through substation outgoing distribution lines lightning arresters airbreak switches stepdown transformer distribution. K substation standards switch operating and equipment platforms electrical design and details 20.
Installation of 11kv440v distribution substation ajinkya lonare1, pravin 2bodadkar, 4shuchiket darunde3. What one company or customer calls a substation may not be what another company or customer defines as a substation. This bulletin is an update and revision of previous rea bulletin 651, design guide for rural substations revised june 1978. Scholar, electrical and electronics engineering department, aisect university bhopal. Singlephase poletype transformers ge grid solutions. Apr, 2017 for the love of physics walter lewin may 16, 2011 duration. It is the cheapest form of substation as it does not involve any building work. Supply in the package materials have been classified as under i. Substation design volume ii physical layout instructor. Ns122 pole mounted substation site selection and construction. Singlephase pole type transformers prolec ge designs and manufactures a complete line of singlephase pole type distribution transformers for installation on utility overhead systems. Meters emwp polemounted primary metering installation, 12 or 21 kv line 058779 page 2 of 8 rev.
I would agree that a polemounted transformer is, strictly speaking, a substation but would generally be called a polemounted transformer. D substation standards lighting fixture pole and bracket mounting 19. Technical guide the mvlv transformer substations abb group. Technical specification construction of 3311 kv primary sub. Technical specification construction of 3311 kv primary substations. El0435620 pole mounted substation 11 kv 433250 v and 11 kv 250120v transformer. Outdoor substation is further classified into two types pole mounted substation plinth or foundation mounted substation comparison between outdoor and indoor substation indoor substation more space required less space required less time required for erection more time required for erection. Single line diagram of 11kv substation substation provides the energy supply for the local area in which the line is located. The design based substations are indoor, outdoor, foundation mounted and pole mounted substations. The main function of the substation is to collect the energy transmitted at high voltage from the generating station and then reduce the voltage to an appropriate value for local distribution and gives facilities for switching. Pole mounted substation is the outdoor type cheapest form of substation for voltages not exceeding 33kv in which the equipments are installed overhead on h pole or 4 pole structure and electric power is almost distributed in localities through such substation. Two poles mounted substation tss2 two poles mounted substation tss2x is used as an endpoint or continuous for overhead mv power lines with voltage up to 35kv.
Substation working in hindi, pole mounted 11kv400v youtube. Electrical power substation engineering and layout. The 3phase, 3wire 11 kv line is tapped and brought to the gang operating switch installed near the substation. 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. The key diagram of this substation can be explained as under. Connection diagram between the distributors substation at the user site and the users passive system cei 016, figure 7. Substations generally have switching, protection and control equipment, and transformers. Such type of substation requires less time for construction but uses more space. The specification for fixed earthing systems within ehv, hv, hvmv and lv substations also applied to terminal towers adjacent to substations and cable sealing end compounds. The construction is designed for mounting pole mounted transformer up to 630kva, cabinet svs with lv switchgear rst and electrical installation.
Aerial transformers, larger than around 75 kva, may be mounted on a platform supported by one or more poles. Design guide for rural substations usda rural development. Singlephase poletype transformers prolec ge designs and manufactures a complete line of singlephase poletype distribution transformers for installation on utility overhead systems. Abstract the thesis deals with the analysis of construction of power lines and substation switchyard of 3311 kv. Pole mounted substation are mainly distribution substation constructed on two pole, four pole and sometime six or more poles structures. Basic substation layout incoming subtransmission lines electric power path through substation outgoing distribution lines lightning arresters airbreak switches stepdown transformer distribution bus cutout switches oil circuit breaker voltage regulators metalclad switchgear control house. We utilize stateoftheart technology in our design and. Depar tures are equipped with thermalmagnetic circuit breakers d165 for a transformer of 100 kva and d265 for a 160 kva transformer. In these type of substation fuse protected distribution.
Placement of the pts and cts on the cluster bracket can be interchanged to suit the job application. Highvoltage substations, the node points of todays complex power transmission infrastructure, play a key role in meeting this demand safely and reliably. 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. A substation is a part of an electrical generation, transmission, and distribution system, where voltage is transformed from high to low, or low to high, or many other important functions. Abbs polemounted distribution transformers are mounted above ground on poles. The electricity substation is a network of electrical equipment which is connected in a structured way in order to supply electricity to end consumers. Introduction estimating is defined as a method by which we can get an. Calling pole mounted transformers a substation is a matter of semantics.
The rated voltage of lightning arresters shall be 9. These highly reliable transformers are available in a wide variety of ratings and accessory combinations. Reduced emission painting for transformers brochure english pdf. Key diagram of substation key diagram of 11kv400v indoor. The main function of the substation is to collect the energy transmitted at high.
It consists of two dead end poles to terminate the lines, two manual nonload. The smrc series recloser incorporates field proven technology regarding integrated line sensors, vacuum interrupters, solenoid dual latch. D substation standards ground cable on tubular steel structures support details 21. Two poles mounted substation tss2x is used as an endpoint or continuous for overhead mv power lines with voltage up to 35kv. Contestable work is work such as the design, construction and installation of electricity works. Horizontally mounted doublebreak switch with grounding switch. Some designs achieve minimum emf emission by installing the low voltage cables and switchboard in a trench down the middle of the room. Farady 50kva power transformer,50 kva pole mount transformer. Thus, this is all about different types of substations and you can refer more information for substation. Single phase pole mounted distribution transformer ermco single phase pole mounted distribution transformers are designed and manufactured in compliance with all applicable ieee and rus.
The following layout designs of indoor distribution substation are typical only and should not be used as construction drawings as they are presented as an example. 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. Estimating of a pole mounted substation prepared by. How a singlephase, as is the case in one pole mounted distribution transformer, as well uses the neutral from a three phase. Other are light industrial and commercial lighting applications. Abbs pole mounted distribution transformers are mounted above ground on poles. I would agree that a pole mounted transformer is, strictly speaking, a substation but would generally be called a pole mounted transformer. Typical layout of a substation linkedin slideshare. Polemounted distribution transformers small distribution. Pole mounted distribution transformer transport for nsw. 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. 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.
Jun 23, 2011 estimating of a pole mounted substation prepared by. These transformers typically service urban and rural residential and commercial loads. From the above information, finally, we can conclude that a subsystem is an essential part of a power grid, and forms a. A substation is a part of an electrical generation, transmission, and distribution system.
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