400 kv substation layout pdf merge

Basic elements of substation equipment 1 busbars conductors carrying power to individual branches 2 branches equipment for carrying power to grid lines. The reason for 400kv being step down gradually through 2kv, 66kv and then to 33kv is because direct stepping down would mean a huge transformer at the reciever end. Oct 07, 2014 the standard instruction for construction of 3311 kv substation is given in rec standards which specifies the layout along with the switchgear. Wiring diagram for marshalling box for 400kv current transformer. The 3phase, 3wire 11 kv line is tapped and brought to the gang operating switch installed near the substation.

A design layout of 233 kv, 200 mw substation the substation is connected with three substations or load viz. Scope of work for 220 kv substation neemwala is as under with sas. Scholar, electrical and electronics engineering department, aisect university bhopal, mp, india. This paper presents the design of earthing system for 400 kv substation and calculation of its parameters. Tscnet services the substation is fed 16 mw power from 3 generating stations a,b,c through 400 kv single circuit lines working at around 87% loading. Electrical stations substations by purpose transformer stations switching stations. Electrical power substation engineering and layout. This oneline sketch of a 3phase system shows a simple con.

Guidelines for uprating and upgrading of substations. Key diagram 11kv400v indoor substation iiteeeestudents. It houses 22 bays of abbs stateoftheart elk04 gis, comprising four bays of bus couplers and bus sections, four incoming bays that connect to the supergrid transformers at the adjacent 400 kv national grid substation and 14 feeder circuits. Download as pdf, 400200 kv substation 400200 kv substation design scribd.

Unitech is a leading iraqi company specialized basically in power and oil projects. Building a 230 kv substation to provide dependable power, the energize eastside project will build a new transformer inside of a substation. Existing and proposed single line diagram for 3311 kv. Distribution substation a distribution substation transfers power from the transmission system to the distribution system of an area. Design guide for rural substations usda rural development. In the event of failure of auto channels, manual control shall be possible. The project of construction of ss 400 11035 kv lastva includes the construction of 2x300 mva substation and extension of the existing substation 400 220110 kv pljevlja 2. These power generating stations may be hydroelectric, thermal or atomic. The power will be provided by connecting the factory to 33 kv mv voltage level. Engineering and supply four transformer positions 400 33 kv 150mva and two line. Rev 00 nitrogen injection fire prevention system section 1, page 2 of 7 further the qualified manufacturer should also have type tested the equipments. The dependency of secure power is increasing in the society which leads to higher demands on the availability of electric power. Substations design of substations to be based on the following xii. Tank chy tanks w b d r a i n tanks w a s h in g p o o l furnace d r a in dra in tank d r a i s e v r n r o a d foot bridge tank tank d r a in d r a i n tank l n e t k d r a i n d r ai n gp a b l e t o n l a n e tank chy dr ai n works tank tank d r ai n.

Insitu insulation test of 400 kv gis article pdf available in ieee transactions on dielectrics and electrical insulation 155. Gvk at srinagar to 400kv substation srinagar will be financed. Apart from the new 400 kv line which will run to the chotejovice substation near the ledvice power plant, the construction of a new 400 kv gis station is. It is one of the important high voltage substation in maharashtra. Abstract the thesis deals with the analysis of construction of power lines and substation switchyard of 3311 kv. Engineering and supply four transformer positions 40033 kv 150mva and two line positions, double bar by gis technology location. Design,supply,manufacturing,erection, te sting and. The 400 kv substation needs now to be replaced due to its age and due to the upgrades of active power output capability of the generators in o2 and o3. Hvpnl 400 kv ppp1 transmission project jhajjar power manual of. Distribution voltages are typically medium voltage, between 2.

They step down the ehv to hv as per the requirement of the customers. 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. Further, the substation automation system sas is itself cost1 single line diagram sld of a typical 500 kv substation 2 layout of a typical 500 kv substation using airinsulated. The project is implemented in compliance with the obligations set forth by the project coordination agreement on the interconnection between the electric power systems of. Design of earthing system for 400 kv ac substation a case. It has a daily load transaction of 1600017000 mwatt. Recognizing the grids complexity and relevance, the national academy of sciences declared the electricity system the worlds largest machine and placed it at the top of the list of the. Appendix c table of contents substation drawings singer substation drawing no. This bulletin provides a basic design guide and a reference tool for designing rural substations.

Basically, these provide points for controlling the supply of power on different routes by means of various equipment such as transformers, compensating equipment, circuit breakers. Home our company sustainable development environmental impact assessments kappa 765 400kv substation environmental impact assessments currently selected libraries. This oneline sketch of a 3phase system shows a simple configuration where an autotransformer is used to convert 400 kv from a transmission line to 220 kv for connection to a power system. Pdf report on 400kv substation niraj dandge academia. Sep 20, 2015 the project work assigned to us was to 233 kv ehv substation electrical design. The first step towards the design of a 4002202 kv substation is to determine the load that the substation has to cater and develop it accordingly. The new substation t he electricity grid was invented in the 19th century and greatly expanded in the 20th. The substation is fed 16 mw power from 3 generating stations a,b,c through 400 kv single circuit lines working at around 87% loading. Technical specification construction of 3311 kv primary sub. Successful operation of entire power system depends to a considerable extent on efficient and satisfactory performance of substations. The project of construction of ss 40011035 kv lastva includes the construction of 2x300 mva substation and extension of the existing substation 400220110 kv pljevlja 2. Ptcul during design, construction and maintenance stages altogether to avoid and wherever. Providing 2x100mva, 2202 kv auto transformer and 1x2025mva, 233 kv power. The project is implemented in compliance with the obligations set forth by the project coordination agreement on the interconnection between the electric power systems of italy and montenegro, so that the 110 kv.

Hence substations in general can be considered as heart of overall power system. The key diagram of this substation can be explained as under. The standard instruction for construction of 3311 kv substation is given in rec standards which specifies the layout along with the switchgear. Obviously, primary equipment, such as transformers and circuit breakers, are very expensive, especially when these are for extra high voltages. Conceptual primary design drawings of 15533kv offshore windfarm substation. To make way for the convention center this 66kv substation had to be relocated. Technical standards for construction of electrical plants and electric. Electrical design of 233kv substation line diagram. A substation is a part of an electrical generation, transmission, and distribution system. The input for a distribution substation is typically at least two transmission or subtransmission lines. The standard layout guides for the general arrangement of the equipments, structures, busbars etc. Substation area including manholes, covers wherever essential complete shall be evolved by the successful bidder and got approved from hvpnl before execution.

Impact of new grid developments on substation design. Design of 400 220 2 kv 16 mw power substation photo credit. Figure 5 depicts the layout of a ring bus configuration, which is an extension of the sectionalized. Why in transmission substations 400kv is not directly stepped.

Substation configuration reliability 1 reliability of substation configurations daniel nack, iowa state university, 2005 introduction while one of the strongest points in a power system is the electric substation, it still contains what could be described as weak points or points of failure that would lead to loss of load. Typical coupling capacitor voltage transformer with carrier coupling. 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. O1 is as well connected to the 400 kv substation but through a kv substation. Now a 400kv transmission line tower could be more or less something like this. Conceptual primary design drawings of 400kv gis and ais equipment, 2kv demolition drawings in stages. The first step in planning a substation layout is the preparation of a one line. Primary vp kv ll n transformers capacity s mva reactance x p. Distribution substations michigan technological university. Design of earthing system for 400 kv ac substation a case study. Introduction sub stations are important link between generating stations and distribution networks. In this case, the turns ratio of the transformer is 1.

The hit plus transformers also combine extremely reduced. Single line diagram of 11kv substation substation provides the energy supply for the local area in which the line is located. Technical guide the mvlv transformer substations abb group. Substation design volume ii physical layout instructor. The substation is fed 16 mw power from 3 generating stations a,b,c through 400 kv single circuit lines working at around 87% loading the power is received on 400 kv busbar double main and transfer bus scheme. Substation 40011035 kv lastva crnogorski elektroprenosni. Pgcil, new delhi 400220 kv gis substation with central. The construction of the new substation was the first step on the critical path of the convention center.

Circuit breakers and disconnectors with merging unit can also be considered for. Depending upon the availability of resources these stations are constructed. Aug 22, 2016 the primary function of a 400220 kv substation would be to provide a conversion of different voltage levels so that power systems can be connected together to form a power system grid. The transformer steps down the voltage to 400 v, 3phase, 4wire. Egu high voltage laboratory in prague observes that there will be a clear need to increase the capacity of local transmission lines. For fulfilling these huge power demands the modern time requires creation of bigger and bigger power generating stations. Design parameters and standard layout of a 3311 kv substation. Drawing title 25251400 singer substation arrangement plan 25251401 singer substation sections 1 and 2 25251402 singer substation section 3 gis enclosure 25251500 singer substation grading plan 25251501 singer substation foundation plan 25251502 singer substation. Early electrical substations required manual switching or adjustment of. The availability willis 2000 can be defined as the fraction of time that the electric power is available in a certain point in the network during a given time interval. Ehv substation layouts for busbar systems up to 400 kv eep. Reliability of substation configurations daniel nack, iowa state university, 2005 introduction while one of the strongest points in a power system is the electric substation, it still contains. Stability of the system, reliability of power depends on the type of layout chosen and components used in the sub stations. Mediumvoltage shielded power cable 2 kv up to 35 kv.

The power from main bus was fed into a 20mva transformer which. No description of technical parameter unit data 1 nominal system voltage kv rms 33kv 2 maximum system voltage kv rms 36. Powering the economy small footprint, high performance. Design,supply,manufacturing,erection, te 211 kv substation with sas at i. The primary function of a 400220 kv substation would be to provide a conversion of different voltage levels so that power systems can be connected together to form a power system grid. Substation ng0252 pins sheet 31 site elevations, sandford 400kv2kv 10 b b ld jb. Hence great care has to be taken to select the layout and. Consider that you would like to choose a transformer to supply power to a factory which requires maximum of 270 kva of power at 400 v on the lv side and no expension is considered for near future.

Numbers of breakers, disconnect switches, transformers, auxiliaries, protective devices, lines and other equipment. Why in transmission substations 400kv is not directly. List of drawings page 1 of 2 substation package tripura state. The availability willis 2000 can be defined as the fraction of time that the electric power is available in a certain point in the network during a. Substation layout substation layout single line diagram check. The substation will transform the voltage from 230 kv to 115 kv, a lower level that powers the local electric system. Wind farm collector substation, with a rated power of 300 mwa, boosting capacity of 2kv400 kv, composed of a bank of four singlephase autotransformers, three in operation and one as backup, transferring both 400 kv and 2 kv by means of a pilot bar. For 400kv and above voltage levels, it shall be isolated. Drawing title 25251 400 singer substation arrangement plan 25251401 singer substation sections 1 and 2 25251402 singer substation section 3 gis enclosure 25251500 singer substation grading plan 25251501 singer substation foundation plan 25251502 singer substation.