132 kv switchyard pdf

There are different types of power generating substations like thermal, atomic, and hydroelectric. Location of lightning masts shall be finalised after approval of dslp calculations. To overcome the under voltage at both the 33 kv feeder buses and 2 kv buses capacitor bank of suitable ratings are placed in shunt. Isolators can not be operated when circuit is energized. A design layout of 233 kv, 200 mw substation the substation is connected with three substations or load viz. Pdf familiarization of 400 kv, 220 kv, 2 kv substation. 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 this work, the data of outages are collected for high voltage substation equipments of 233 kv nirjuli substation a remote location of. Also design of a new 14bay 500 kv switchyard and a major substation expansion adding two 675 mva.

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. Pdf maintenance and operation of an electrical substation. The project work assigned to us was to 233 kv ehv substation electrical design. There are two main 2 kv bus incoming for the substation. Pdf reliability is an analytical tool used to measure the ability of a power. The project work assigned to us was to design a 2 33 kv ehv substation. A mini project report on operation and maintenance of 2202kv substation submitted in partial fulfillment for the award of the degree of. Our project is to design a 2kv33kv ehv substation where the incoming power is received at 2 kv from a generating station. The project work assigned to us was to design a 233 kv ehv substation. Uttar pradesh power corporation ltd, dohna 220233 kv. Autocad format and manuals in pdf format, for offered item shall be submitted. The 345 kv voltage level is treated as 362 kv and is nolonger advocated by standards. Distribution substation a distribution substation transfers power from the transmission system to the distribution system of an area. Uppcl, dohna, uttar pradesh, india220233kv substation english pdf reference case study wbseb, bishnupur, west bengal, india 220233 kv substation english pdf reference case study abb solutions for ebuses highlights worlwide english pdf leaflet.

For tender purpose only nepal electricity authority. 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. The three curves shown here are for the normal u phasing, and three different line designs. Pdf reliability evaluation of a 233 kv hv substation. Nonsecurity item tender document for construction of 233kv substation on turnkey basis for supply, transportation, erection, commissioning and civil work tender no. The switchyard is located approximately 850 feet southwest of the right abutment of the dam, and approximately 170 feet higher than the top of the dam. The next level range covers 245 kv and 300 kv with one gis type. The equipment required for a transformer substation depends upon the type of substation, service requirement and the degree of protection desired. Uttar pradesh power corporation ltd, dohna 220233 kv substation. Distribution voltages are typically medium voltage, between 2. Scholar, electrical and electronics engineering department, aisect university bhopal, mp, india. Pdf reliability evaluation of ayede 3302kv substation. The 233kv substation is composed of double open type 2kv bus bars four feeder bays, two.

Failure is most possible if the circuit was subsequently loaded and ct windings could be saturated and generate high heat. The fill for embankment ranges up to 27 feet in depth and the cut for excavation ranges up to 24 feet in depth. Abb substations with airinsulated switchgear ais provide a costefficient and wellproven solution without compromising on reliability. In those design where bus bar is continuous, provision is to be made available for isolation of. Jul 07, 2018 switchyard equipments, switchyard in hindi, switchyard single line diagram, switchyard construction, switchyard protection, switchyard maintenance, switchyard animation, switchyard in thermal and. The fourth level range the lets in 362 kv and 420 kv voltages with the same gis type. The current transformers and accessories covered by this specification shall comply with the. Training report on 400220 2 kv switchyard in india design and engineering. Of 2 kv switchgear components of 2 kv switchyard isolators current transformer potential transformer surge arrestor transformer insulators busbars relay and control panel 2 kv isolators isolators are designed to open a circuit under no load. Thus 2 kv can be represented by three sections 1, 2 and 3 and if p 1, p 2 and p 3 are the probabilities of each section being in good condition then the overall reliability can be. Electrical substation components list diagram, working.

In those design where bus bar is continuous, provision is to be made available for isolation of individual bay without disturbing adjacent bay. The incoming voltage level for this substation is 220kv. What is the difference between a substation and a switchyard. Two teams were constituted to work on the 11kv stations so as to meet the crucial deadlines. Typical fields are lower than the maximum field because the clearance is usually higher.

Contact resistance, breaker timing was beyond the limit. Training report on 4002202 kv switchyard in india design. A separate team was formed to oversee the work on the 2kv switchyard and all the standard health and safety parameters. In switchyard we are using hand gloves to open or close isolator and give a earth switch in 66 kv,2 kv and 220 kv but the rating of gloves is maximum 40 kv then why we using that gloves. Statcom, svc and battery transmission ehv nv energy. Pdf modelling 2 kv substation for surge arrester studies. Tender document for construction of 233kv substation on turnkey basis for supply, transportation, erection, commissioning and civil work tender no. Distribution substations michigan technological university. A design layout of 2 33 kv, 200 mw substation the substation is connected with three substations or load viz. Failure of 220 kv circuit breaker cb at idukki switchyard, kseb.

Pdf maintenance and operation of an electrical substation of 220. Training report on 4002202 kv switchyard in india design and engineering. L7 the highest, a smaller pylon design, the l2, and a woodpole design. Conversion of a ring bus station to breakerandonehalf. Uttar pradesh power corporation ltd, dohna state transmission. Abstract the thesis deals with the analysis of construction of power lines and substation switchyard of 3311 kv. Besides changing the voltage, the job of the distribution substation is to isolate faults in. Ayede 3302kv substation feeds six different 233kv substations, such as. We considered incoming power at 2 kv and the power was transferred to main bus through isolatorcircuit breakerisolator combination. Sep 01, 2014 2 kv substation, purukul, dehradun the 2 kv substation was commissioned in the year 27th march, 1983.

The electricity substation is a network of electrical equipment which is connected in a structured way in order to supply electricity to end consumers. Modelling 2 kv substation for surge arrester studies article pdf available in international journal of emerging electric power systems 95 january 2008 with 920 reads how we measure reads. 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. For 220 kv class enclosure it shall be single or phase wise separate metallic type. What is a substation definition, types of substations at present, the demand for electrical power is growing rapidly, and this can be fulfilled by the power generating substations. Removal of 220 kv ocb approx wt 34 mt was challenging. Summer training report on familiarization of 400 kv, 220 kv, 2 kv substation equipment venue 400220233 kv kukurmara grid substation. The input for a distribution substation is typically at least two transmission or subtransmission lines. Electrical clearance in substation electrical notes. Much of the substation cost savings would be lost if the supply cables were laid in separate trenches since the civil trench work, laying and reinstatement costs are typically between 33% and 40% of the total supply and erection contract costs for 2 kv oil filled and 33 kv xlpe, respectively. How solar power is connected to the grid electrical. 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. 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.