33 11 kv indoor substation layout pdf

Distribution substations michigan technological university. The main bus 33kv is connected to grid located at sector25, indiranagar, lucknow. 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. Now the transmission line first parallel connected with lightning arrester to diverge surge, followed by cvt connected parallel. Single line diagram of 3311 kv jampaijala for tender purpose. The substation are situated at underground is called underground substation. The rec standard mentions that an outdoor type 3311 kv substation should have 2 power transformers and 3 outgoing feeders. Compact substations, indoor substation, outdoor substation, control panels, ht panels, cable glands, on load break switch fuse panel suitable for 11 kv indoor outdoor sub station, manufacturer, supplier, exporter, nashik, maharashtra, india. Technical guide the mvlv transformer substations abb group.

In phasei, a study of existing network and availability of space for the substation and lines up to 11 kv of the campus is to be carried out. 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. Substation substation a station in the power transmission system at which electric power is transformed to a conveniently used form. 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. Technical specification construction of 33 11 kv primary sub stations. I want all the equation which is not shown in pdf file of design study for 3311 kv substation, distribution and protection in the city of kenya so what can i do. Owners supply materials osm 3311 kv power transformers, station 330. Owners supply materials osm 33 11 kv power transformers, station 33 0.

Design study for 3311 kv substation, distribution and protection in. Electrical power substation engineering and layout. A comparison of land area requirements between a conventional single busbar fully switched outdoor 33 11 kv distribution substation 2150 m2, a fully switched onestorey indoor substation 627 m2 and for the transformerfeeder arrangement 420 m2 is shown in fig. The aim of this project is to provide the consultancy service to doctor harisingh gour vishwavidyalaya, sagar mp for substation design, feeder up to 11 kv and estimation of cost. Generally 11 kv and sometime 33 kv substation are of this type. Jun 20, 2018 single line diagram33kv11kv substation this is the easy way to understand the working of substation. Abb substations with gasinsulated switchgear gis are unmatched when it comes to compactness, reliability, efficiency and safety, ensuring maximum power availability for. The sub station size depends on the capacity of the sub station like 2 mw, 5 mw 10 mw etc. The choice of incoming and outgoing voltages of substations is decided by the rated. The substations are constructed under roof is called indoor type substation. Rpg2 are fed from the small 2x2 mw hydroelectric project at ranni perunad works under the tail race of 12 mw, maniyar hydro electric project by carborundum universal ltd. Relays are used for disconnecting the circuits by manual or automatic operation. The standard layout guides for the general arrangement of the equipments, structures, busbars etc. The electricity substation is a network of electrical equipment which is connected in a structured way in order to supply electricity to end consumers.

Scholar, electrical and electronics engineering department, aisect university bhopal, mp, india. Generally, gas insulted substations gis are indoor. Pdf maintenance and operation of an electrical substation. Detailed investigation of substation and preparation of boq. The contractor shall be responsible for the complete design and engineering. I assume an average suburban station of 5 mw of 11 kv substation. Projects product 11kv433v mobileskid mounted substation sheet 2 of 46 details of equipments. Abstract the thesis deals with the analysis of construction of power lines and substation switchyard of 33 11 kv. The gas is put inside the circuit breaker by force i. The long distance transmission is generally at extra high voltages such as 2 kv, 220 kv, 400 kv ac. Oct 07, 2014 the standard instruction for construction of 33 11 kv substation is given in rec standards which specifies the layout along with the switchgear. Sf6 gas having high dielectric property acts as insulating medium between the live parts and ground. Single line diagram33kv11kv substation this is the easy way to understand the working of substation.

What is the minimum area required for constructing an 11. The use of sf6 circuit breaker is mainly in the substations which are having high input kv input, say above 220kv and more. The breaker cells are one 2,000a main breaker, four 1,200a feeder breakers, and one 2,000a future bustie breaker that will serve as the. There must be provision for 2 additional 11 kv outgoing feeder for load enhancements in future. Even the instruments are very costly, so to prevent any damage lightening arrestors are used. The manual is applicable for all substation projects regardless of internalexternal design delivery mode.

Abb substations with gasinsulated switchgear gis are unmatched when it comes to compactness, reliability, efficiency and safety, ensuring maximum power availability for utility, commercial and industrial customers. Technical specification construction of 3311 kv primary sub. Key diagram 11kv400v indoor substation iiteeeestudents. Guidelines for substation and power distribution systems.

Electrical substation components list diagram, working. Sep 16, 2012 the use of sf6 circuit breaker is mainly in the substations which are having high input kv input, say above 220kv and more. Design,supply,manufacturing,erection, te sting and. Single line diagram of 3311 kv jampaijala for tender. The station may consist of transformers, switches, circuit breakers and other auxilliary equipment. In our substation, we have chosen one main bus and one transfer bus system.

Gbawe outdoor substation 33 11 kv construction steps duration. A distribution substation transfers power from the transmission system to the distribution system of an area. Nov 14, 2011 i 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 substations. No description of technical parameter unit data 1 nominal system voltage kv rms 33kv 2 maximum system voltage kv rms 36. Distribution voltages are typically medium voltage, between 2. Indoor switchgear must be installed in a building for protection from the elements. Jun 24, 2017 the substation size depends on the capacity of the sub station like 2 mw, 5 mw 10 mw etc.

The station will have a stepdown transformer of 11 kv to 440 volts 3 phase. Power evacuation, main single line diagram, grid interconnection. A comparison of land area requirements between a conventional single busbar fully switched outdoor 3311 kv distribution substation 2150 m2, a fully switched onestorey indoor substation 627 m2 and for the transformerfeeder arrangement 420 m2 is shown in fig. Hv substation project brief history et bihl d i 1987 f th il ti f l hv mv d established in 1987 for the realization of complex hv, mv and lv projects. The subtransmission is at medium high voltage such as 33 kv, 11 kv ac.

The input for a distribution substation is typically at least two transmission or subtransmission lines. Design,supply,manufacturing,erection, te 211 kv substation with sas at i. Sep 30, 2012 a sample of my work, take a tour in 3311 kv outdoor substation. The outdoor substations are mainly classified into two types, namely polemounted substation and foundationmounted substations. Substation design references ansi c37 series protection and control equipment ansi c57 series transformers ieee standard 80 substation grounding. In such substations the apparatus is installed within the substation building. Abstract the thesis deals with the analysis of construction of power lines and substation switchyard of 3311 kv. Single line diagram 33kv11kv substation in hindi youtube. Technical specification construction of 3311 kv primary. Outdoor installation is preferred because of the saving in civil works. Existing and proposed single line diagram for 3311 kv. 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. May 15, 2018 the substations are constructed under roof is called indoor type substation.

The requirements in the design and other factors to be considered before the design as well as the beme for the design are thoroughly looked at. In congested places where place for constructing distribution substation is difficult to find out, one. What are the advantages and disadvantages of an outdoor type substation over an indoor type substation. The contractor shall finalize the layout arrangements in. The substation design manual is not intended to replace asset management standards, but rather. Distribution substation a distribution substation transfers power from the transmission system to the distribution system of an area. Compact substations, indoor substation, outdoor substation. The substation equipments such as conductors, transformers, etc. Perunad substation inaugurated by minister aryadan muhammed. Basic substation layout incoming subtransmission lines electric power path through substation. This high voltage is very dangerous to the instruments used in the substation. Between the generating station and consumer, electric power may flow through several substations at different voltage levels. Such type of substation requires less time for construction but uses more space. Substations transform voltage from high to low, or the reverse, or perform any of several other important functions.

The outdoor type substation has the following advantages over indoor sub station. Such substations are usually for a voltage up to 11 kv but can be erected for the 33 kv and 66 kv when the surrounding atmosphere is contaminated with impurities such as metal corroding gases and fumes, conductive dust etc. Some designs achieve minimum emf emission by installing the low voltage cables and switchboard in a trench down the middle of the room. The hybrid switchgear is a mix of ais and gis technology and can be installed indoor as well as outdoor.

The requirements in the design and other factors to be considered before the design as well. A unit scheme providing outdoor switching of the generator and transformer bank as a unit on the. The two primary distribution feeders of the substation illustrated in figure 1 are protected by either power circuit breakers or automatic circuit reclosers. Established in 2012, the agency comes under the authority of the department of power. The number of 33 kv incoming feeder may be one or two. An ac substation has generally 2 or 3 main voltage levels. In addition manual, operation by means of a suitable operating.

A substation is a part of an electrical generation, transmission, and distribution system. In phasei, a study of existing network and availability of space for the substation and lines up. Supply in the package materials have been classified as under i. Substation work, equipments data, operational manual, etc for the owners. The substation is fed from 110 kv substation pathanamthitta through one 33 kv feeder 33 kv ptpe feeder. Design parameters and standard layout of a 3311 kv substation.