138 kv substation layout pdf

The input for a distribution substation is typically at least two transmission or subtransmission lines. Load flow analysis of 869 kv substation using etap eep. Upgraded protection and controls for 869 kv substation including two 8 kv lines, one 869 kv autotransformer and two 69 kv lines. Simplified design and complete factory assembly and testing mean. Mje has also completed the line cutins for the new morocco substation. Electric transmission specifications and drawings, 115 kv through 230 kv incorporated by reference in 7 cfr part 1728 to.

The next level range covers 245 kv and 300 kv with one gis type. Plans also involve completing minor upgrades to the distribution system before connecting it to the new substation. This site is served by a combination of allweather, gravel and unimproved dirt roads. System planning, design, construction, and protection. It is used to switch generators, equipment, and circuits or lines in and out of a system. Power system fundamentals transmission facilities pjm2014 090920. One purpose of a substation is to contain the equipment for changing electric. Chapter 7 33 kv switching substation, savar of dpbs1 7. Substations a substation is a highvoltage electric system facility. Design,supply,manufacturing,erection, te sting and. The substation design manual is not intended to replace asset management standards, but rather to act as a reference document that crossreferences existing standards and process documentation and.

They step down the ehv to hv as per the requirement of the customers. Trade zone 8kilovolt substation american electric power. Technical specification construction of 3311 kv primary sub. This substation was a 15breaker, 10position breakeranda. Siemens has proven to be a reliable, trustworthy supplier of highvoltage substations for all voltage levels and for all applications from basic substations with a single busbar to interconnection substations with multiple busbars or a breakerandahalf arrangement for up to 800 kv, 8,000 a, and shortcircuit currents of up to 100 ka. Numbers of breakers, disconnect switches, transformers, auxiliaries, protective devices, lines and other equipment.

A design layout of 233 kv, 200 mw substation the substation is connected with three substations or load viz. The fourth level range the lets in 362 kv and 420 kv voltages with the same gis type. Table 1 in service years of transmission substations operating at 8 kv or higher in service years number of substations % 0 5 69 9. Line relay upgrades florida upgraded 230 kv protective primary and secondary line relays for a central florida transmission line and upgraded control relays for two 230 kv breakers. Scholar, electrical and electronics engineering department, aisect university bhopal, mp, india. Patrick created plan and profile drawings which are. No description of technical parameter unit data 1 nominal system voltage kv. Distribution substation a distribution substation transfers power from the transmission system to the distribution system of an area. St marys sugar mill evaporator installation project. Abstract the thesis deals with the analysis of construction of power lines and substation switchyard of 3311 kv.

Transmission lines, and converting the 230 kv to a breaker and a. The existing substation footprint is approximately 25,200 sq. Series 2000 circuitswitcher for substation switching and. The scope of this report encompasses the load flow results, and explains how these were used to implement changes on the feeders that resulted in an improved voltage profile. Up to 170 kv, 4000 a, 50 ka and 63 ka up to 145 kv. Substation layout consists essentially in arranging a number of switchgear components in an ordered pattern governed by their function and rules of spatial separation. Substation layout substation layout single line diagram check. The project included installation of a second 23069 kv transformer, expansion of a 69 kv breaker and a. No description of technical parameter unit data 1 nominal system voltage kv rms 33kv 2 maximum system voltage kv rms 36. The input for a distribution substation is typically at least two. Sometimes, power is tapped from the subtransmission line for use in an industrial facility along the way. Wood county by expanding the brim 698 kv substation, adding a second 869 kv transformer, and converting the substation from a single bus into a 4breaker 8 kv ring bus. All rus borrowers rus electric staff effective date. The substation design manual is not intended to replace asset management standards, but rather to act as a reference document that crossreferences existing standards and process documentation and plugs any gaps where asset management documentation does not exist.

The 345 kv voltage level is treated as 362 kv and is nolonger advocated by standards. An allinone solution in a footprintsaving package, the maintenancefree interrupters for straightforward installations are customized to your needs for 69. D substation standards control switches escutcheons, lamps and developments 61. The standards and manuals were subsequently expanded to include 230 kv and 345 kv structures. This project is recommended by pjm and identified by the rtep number b2875. Short circuit and current capacity of equipment, bus and other equipment compliance with projects scope and requirements number of feeders and load circuits. Hence great care has to be taken to select the layout.

Distribution voltages are typically medium voltage, between 2. A distribution substation transfers power from the transmission system to the distribution system of an area. An allinone solution in a footprintsaving package, the maintenancefree interrupters for straightforward installations are customized to your needs for 69 kv through 230 kv transmission applications. Distribution substations michigan technological university. The subtransmission voltage lines can then serve as a source to distribution substations. Given two types of substation configurations, determine.

Siemens has proven to be a reliable, trustworthy supplier of highvoltage substations for all voltage levels and for all applications from basic substations with a single busbar to interconnection substations. Revised east county substation footprint project description. 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. Wood county by expanding the brim 69 8 kv substation, adding a second 8 69 kv transformer, and converting the substation from a single bus into a 4breaker 8 kv ring bus. The seminole 8 kv substation is located on the west side of i45 in league city, texas.

The seminole 8kv substation is located on the west side of i45 in league city, texas. This substation was a 15breaker, 10position breakerandahalf scheme, for a new combined cycle power plant for calpine corporation in fremont, ohio. The scope of this report encompasses the load flow. Anthony near oleary to the sherbrooke substation near summerside, a. Substation allows costeffective knowledge gathering on how new substation components perform over time, how online monitoring technologies respond to a wide range of repeatable and realistic scenarios. The project was finished and energized as scheduled in may 2004. Upgraded protection and controls for 8 69 kv substation including two 8 kv lines, one 8 69 kv autotransformer and two 69 kv lines. Earth clearance this is the clearance between live parts and earthed structures, walls, screens and ground. Permanent workspace requirements, one additional permanent maintenance pad would be required for steel pole 108a. C substation standards typical duplex switchboard surge suppressor networks detail layout 60.

Patrick created plan and profile drawings which are located in appendix a. D substation standards control switches escutcheons, lamps and. Introduction sub stations are important link between generating stations and distribution networks. Maritime electric company, limited mecl is proposing to construct and operate a 8 kv transmission line from its substation in st. Mission of electrical substations and their main components course no. Design,supply,manufacturing,erection, te 211 kv substation with sas at i. Dead tank circuit breaker 123 170 kv compact and preset from factory for rapid installation the 123170 kv dead tank breakers feature a small footprint and a single piece interrupter with factory aligned. The 8 kv yard consists of three rows of breakerandahalf configuration, including eight gas circuit breakers, sixteen disconnect switches, and a control house. Mission of electrical substations and their main components. First version of the catalogue is in use for everyone.

Product brochure gasinsulated switchgear elk04 modular. Substation capacitor bank design engineering various locations designed capacitor bank installations consisting of 34. Patrick designed single pole wood structures to support the single circuit line. Transmission, sub transmission and distribution substation 4. Gasinsulated switchgear elk04 modular system up to 170 kv, 4000 a, 63 ka. Crews installed three towers on the 345 kv side and twenty monopoles on the 8 kv side.

Line relay upgrades florida upgraded 230 kv protective primary. This bulletin is an update and revision of previous rea bulletin 651, design guide for rural substations revised june 1978. First substation project with 3d cad design by a engineering consultant end in early 2007. Fundamentals of modern electrical substations part 1. This line is overloaded to 101% of the summer emergency rating when a fault at the 8 kv l bus at richland substation occurs. Electric substations with equipment used to convert highvoltage, extrahighvoltage ehv, or ultrahighvoltage uhv transmission lines to the intermediate voltage subtransmission lines or to switch subtransmission circuits operating at voltages in the range of 34. The stepdown substation can change the transmission voltage to a subtransmission voltage, usually 69 kv. Highvoltage substations highvoltage power transmission.