400 kv switchyard details in pdf

Dec 11, 2017 substation and switchyard both are different and these two switchyard is the inter connector between generation and transmission, and same voltage is mentained in switchyard, substation is the inter connector between transmission and distribution. The 400 kv switchyard of the substation had two power transformer feeders and four outgoing transmission line feeders. Download as pdf, 400 200 kv substation 400 200 kv substation design scribd. The aim of this paper is to study electric fields at a 400 kv substation to find out whether they exceed occupational exposure guidelines, 10 kvm, by international commission on nonionizing radiation protection icnirp. General arrangement a designer perspective, but fine tuned at site. What is the difference between a substation and a switchyard. Post insulators for 400kv switchyard for uprvunl p tender. Siemens highvoltage substations with airinsulated switchgear ais are the costefficient choice for rated voltages of up to 800 kv. They are renowned for highest reliability, economical operation, and low maintenance requirements.

Conclusion the overview of this project is about the various techniques involved in 400 kv switchyard of ramagundam power plant. A 400 kv switchyard was near the statcom building at a distance of approximately 50 m and energized at all the time during measurement. Now a 400kv transmission line tower could be more or less something like this. Pdf maintenance and operation of an electrical substation. Distribution substation a distribution substation transfers power from the transmission system to the distribution system of an area. 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. The rating of 400 kv hcb shall be considered as indicated in schedule a or boq of respective tender. Capacity status rating status capacity status rating status 22066 kv,100 mva tfr. 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. Chapter 7 400 kv substation free download pdf ebook. The siemens experts always consider the electrical parameters as well as the environmental conditions to which a. It is one of the important high voltage substation in maharashtra.

No description of technical parameter unit data 1 nominal system voltage kv rms 33kv 2 maximum system voltage kv rms 36. Jul 07, 2018 switchyard equipments, switchyard in hindi, switchyard single line diagram, switchyard construction, switchyard protection, switchyard maintenance, switchyard animation, switchyard in thermal and. Measurements of electric fields have increased because of public concern about their health effects. Power frequency electric fields at a 400 kv substation. Pictorial view of 400kv switchyard at vstps bay details there are 38 nos. 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.

Distribution substations michigan technological university. Substations design of substations to be based on the following xii. Switchyard consists of four 400 kv busbars fed by 7 nos. The whole substation is divided into three part 400kv,220kv and 33 kv and a common control room is used 5 6. The power is received on 400 kv busbar double main and transfer bus scheme.

Distribution voltages are typically medium voltage, between 2. Technical specification construction of 3311 kv primary sub. It has a daily load transaction of 1600017000 mwatt. Attachment 3k sub qualifying requirements for the 400. The 220 kv gis switchgear shall be of double bus bar design having phase wise separate or threephase common single enclosure.

The foundations were constructed over piles as site is located close to river bed substation commissioned in 2007. Besides changing the voltage, the job of the distribution substation is to isolate faults in. Read about company and get contact details and address. Failure of 315 mva, 400 22033 kv auto transformer at 400 kv bawana substation of dtl a. Pdf report on 400kv substation niraj dandge academia. Autocad format and manuals in pdf format, for offered item shall be submitted. Placement of switchyard control room placement fire fighting pump house. In case of partial blackout of region with survival of kothatudem 5th stage of ap genco request ap ldcioccsrldcpgcil to change. Pdf transients due to switching of 400 kv shunt reactor. Electrical works 400 kv substation chapter7 400 kv substation 1. Download as pdf, 400200 kv substation 400200 kv substation design scribd.

The aim of this paper is to study electric fields at a 400 kv substation to find out whether they exceed occupational exposure guidelines, 10 kv m, by international commission on nonionizing radiation protection icnirp. The measurements were carried at ten locations around the statcom value building. Substation and switchyard both are different and these two switchyard is the inter connector between generation and transmission, and same voltage is mentained in switchyard, substation is the inter connector between transmission and distribution. Pgcil, new delhi 400220 kv gis substation with central. Operational description of 400kv switchyard ntpc ramagundam rstps. Plcc details index description fibre optic details 1.

Failure of 315 mva, 40022033 kv auto transformer at 400 kv bawana substation of dtl a. An electrical substation is a part of an electricity. Transients due to switching of 400 k v shunt reactor. Nepal electricity authority project management directorate. The remaining 680 mw is fed to three 315 mva 3 x 105 mva units autotransformers working at an average 80% loading and 0. Why in transmission substations 400kv is not directly. Mppgcl testing of disc insulators strings of 400 kv switchyard through pid test kit and submission of test reports with analysis at, due date. Pioneer and technology leader driving gis innovations. 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 input for a distribution substation is typically at least two transmission or subtransmission lines. 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.

Switchyard equipments, switchyard in hindi, switchyard single line diagram, switchyard construction, switchyard protection, switchyard maintenance, switchyard animation, switchyard in. Bhel post insulators for 400kv switchyard for uprvunl panki tps extn 400 kv post insulators for 400kv switchyard for uprvunl panki, due date. Technical specification construction of 3311 kv primary. By this we get to know about the operation of different equipments in switch yard and its maintainance. Automation philosophy for 400 kv asoj sub station extension of 22066kv yard a technical details of 22066kv system 1. Testing of disc insulators strings of 400 kv switc tender. For creepage distance refer to clarification number 166 of tac4 for power va rating refer to procurement document volume 2 of 2 item 6. This is a sparking view when two isolators comes in contact and are closed. Nov 15, 20 this is a sparking view when two isolators comes in contact and are closed.