Distribution substations michigan technological university. Deptt66kv xmerjune 11 special instructions to bidder please read following instructions carefully before submitting your bid. Incoming and outgoing for 66kv and 11kv underground lines, cable jointing, terminations, grounding work including civil works, installation of acdc control panel, battery bank and charger installation, testing, and commissioning. Abbs innovative hybrid substations combine gas and airinsulated switchgear technologies to make the installation more compact, minimize maintenance requirements and maximize availability and reliability. Key diagram of substation key diagram of 11kv400v indoor. Technical specification for 3311kv power transformers apdrp scheme page 6 of 72 the purchaser reserves the right to reject an item of equipment if the test results do not comply with the values specified or with the data given in the technical data schedule. The 220 kv grid substation at sarita vihar is a air insulated outdoor substation.
Economical voltage rating has been categorised for different power range to be received thumb rule. Single line diagrams of 220kv66kv11kv transmissiondg 01 and 01a. Single line diagram33kv 11kv substation this is the easy way to understand the working of. Electrical substation components list diagram, working. Many factors like system voltages, basic impulse insulation level, arrestor rating, station layout. 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. Western power distribution is the electricity distribution network operator for the midlands, south wales and the south west. For more information, please visit out webpage and download the pdf. In large substations, arrestors should be installed at takeoff points of the lines and of the terminal apparatus. There are four 220 kv incoming feeders for this substation coming from. You can contact us 24 hours a day, 7 days a week, 365 day a year. Supply and erection of 66kv conventional outdoor equipments as per respective technical specifications for transformer bay.
The electricity substation is a network of electrical equipment which is connected in a structured way in order to supply electricity to end consumers. Why electric power transmission is multiple of 11 i. This substation is constructed using steel lattice structures to support strain bus wires and apparatus. Figure attached shows key diagram of a typical 2206611 kv. This will be applicable to the effectively earthed 11 kv systems coefficient of earth not exceeding 80 percent as per is. This substation is located on sports and surgical complex near bawakhel on the inskirts of jalandhar city distance.
Nov 14, 2011 key diagram 11kv400v i the 3phase, 3wire 11 kv line is tapped and brought to the gang operating switch installed near the substation. The design of the entire substation was made keeping in mind the most basic requirements of a proper. Technical specification for design, supply, installation and. This is showing three of the five 220 kv66 kv transformers, as well as. 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. The 3phase, 3wire 11 kv line is tapped and brought to the gang operating switch installed near the substation.
Jun 20, 2018 single line diagram33kv 11kv substation this is the easy way to understand the working of substation. Design calculation of voltage transformer 66kv line in 23066. Pdf the adoption of the substation automation sa technology for the grids and. Ns specification for laying undgerground cable up to. Any proposed variations from this specification must be referred to substation assets manager for approval prior to acceptance. Single line diagrams of 220kv66kv11kv transmissiondg 01. Atlas of hpsebl power grid with detail of substations 66kv.
Practical training report on 2206611 kv substation eep. Distribution substation a distribution substation transfers power from the transmission system to the distribution system of an area. Distribution substations may also be the points of voltage regulation, although on long distribution circuits several kmmiles, voltage regulation equipment may also be installed along the line. Single line diagram 33kv11kv substation in hindi youtube. Above pdf contains two slds of substations 220kv into 400v. The main purpose of the substation is to provide reliable and continuous electric power supply related to the. Single line diagram33kv11kv substation this is the easy way to understand the working of. Our portfolio of highquality products and advanced technologies, including disconnecting circuit breakers dcb and iec 61850 substation automation systems, reduce substation footprint and enable smart grid integration. Single line diagrams of 220kv66kv11kv transmissiondg.
Besides changing the voltage, the job of the distribution substation is to isolate faults in either the transmission or distribution systems. Specification for erection, testing and commissioning of. Abb substations with airinsulated switchgear ais provide a costefficient and wellproven solution without compromising on reliability. Key diagram 11kv400v indoor substation iiteeeestudents. Design, supply, installation, testing and commissioning of 15 mva, 6611kv, 3 phase, 50hz, power transformer with on load tap changer at main receiving station rail wheel factory yelahanka, bangalore. Pdf single line diagram of substations pankaj choudhary. Specification for erection, testing and commissioning of 66. In this video you will see 66kv substation switch yards different equipment s like lighting arrestor, isolator, ct,pt, sf6 circuit. Compliance with regulations all the equipment shall comply in all respects with the indian regulations and acts in force. In the right corner of the image, we can see a sld of 11kv to 400 v step down. Design calculation of voltage transformer 66kv line in 2306611kv substation khin myo mu dept of electronic engineering, mandalay technological university, mandalay, myanmar, email. Now the commonly used ac waveform we know is sine wave. The control centres all run abbs network manager ws500 which is the software used for.
Kenya power and lighting co ltd vi 3 contract a39 distribution reinforcement and upgrade technical specifications and drawings 4. The key diagram of this substation can be explained as under. Why is transmission line 11kv or 33kv, 66kv not in 10kv, 20kv. Ei 020019 installation of underground cables lv to 2kv. Why is transmission line 11kv or 33kv, 66kv not in 10kv. Distribution voltages are typically medium voltage, between 2. This specification is intended to cover complete design, engineering, assembling, testing at manufacturers works, substation building, complete erection, testing, commissioning and putting into successful commercial operation of 6611 kv substation. Supply in the package materials have been classified as under i. Eess10480 6611kv z632d single line diagrams pdf file, 3. 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. Secondary substations receive power at 6633kv which is stepped down usually to. This is showing three of the five 220 kv 66 kv transformers, as well as highvoltage transformer fire barriers, each with a capacity of 150 mva.
The bidder should be original equipment manufacturer oem. Between the generating station and consumer, electric power may flow through several substations at different voltage levels. 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. In order to perform this function the model includes details on all 11kv and 66kv substations and transformer ratings on the network.
From the same bus bars,outgoing line is taken which goes to the other substation. The input for a distribution substation is typically at least two transmission or subtransmission lines. A 66 kv33kv,star delta transformer is connected to the 66kv bus bars. Design,supply,manufacturing,erection, te sting and. Earthing design of 11kv and 33kv rural substations in the uk. In the substation switchyard, installation of 66kv incoming gas insulated switchgear outdoor gis. Western power distribution substation construction. Guidelines for substation and power distribution systems. A planning approach for urban distribution networks in. Kenya power and lighting co ltd vi 2 contract a39 distribution reinforcement and upgrade technical specifications and drawings 4. The standard is limited to scope identified below and provides controls for associated risks as listed below.
Our portfolio of highquality products and advanced technologies, including disconnecting circuit breakers dcb and iec 61850 substatio. The rated voltage of lightning arresters shall be 9 kv rms. With the progress of this development, the availability factor of abou zaabal substation rose rapidly to 88. Substations transform voltage from high to low, or the reverse, or perform any of several other important functions. What is the criteria for selection of 33kv11kv or 66kv. The 11kv cables and overhead lines are also modelled in detail. Technical specification for design, supply, installation. Lightning arrester should be located close to the equipment that it is expected to protect.
Design calculation of voltage transformer 66kv line in 230. Measured peak load readings from the scada system are used to assign loads to the individual. Design,supply,manufacturing,erection, te 211 kv substation with sas at i. The stepped down 33kv is further stepped down to 11kv and then finally to 440v to. Single line diagram of 6611 kv substation click to enlarge sld. Technical specification for 33 11kv power transformers apdrp scheme page 4 of 72 6. Technical specification construction of 3311 kv primary. First of all, it is not true that all the transmissions and distribution voltages are multiple of 11. Areas outside the substation do not need to be considered. Detailed investigation of substation and preparation of boq to be done by the bidder.
Substation 30v battery systems for protection andor circuit breaker tripping. Pdf maintenance and operation of an electrical substation. In plan layout of direct stroke lightning protection, the whole area of substation should be covered by shield wire and masts. Maintenance and operation of an electrical substation of. Any technicalcourseis incompletewithoutsome type of training. The neutral earthing resistors on the 11kv and 33kv limit fault levels so secondary substations will not be classed as hot. The substation equipments such as conductors, transformers, etc. The needs of ausgrid, developers, customers, roads and maritime services, local councils and other service utilities have. Owners supply materials osm 3311 kv power transformers, station 330. A substation is a part of an electrical generation, transmission, and distribution system. Technical specification construction of 3311 kv primary sub. But 400kv, 765kv and 800kv etc are not multiple of 11 in case of electric power system generation, transmission and distribution in power lines from the generation.
It must not be used directly or indirectly in anyway detrimental to the interest to the company. Also the hard copies as per specification shall be submitted. Substation 0 66kv integral energy supply point substation 1 6611kv 16mva substation substation 3 11kv433v 2. Single line diagram33kv11kv substation this is the easy way to understand the working of substation. Abstract the thesis deals with the analysis of construction of power lines and substation switchyard of 3311 kv. A 50 hz electrical substation in melbourne, australia. Specification for erection, testing and commissioning of 6611 kv. Where a substation is fed via overhead line and has no metallic return path, all the earth fault current. Depending on the quantum of power required and local regulations, the power may be supplied at. Single line diagrams of 220kv 66kv 11kv transmissiondg 01 and 01a. Form factor is defined as rms value to average value of a given ac voltage and it is different for different waveforms. Deviations on account of inadequate data for substation works shall not be. Scholar, electrical and electronics engineering department, aisect university bhopal, mp, india.