33 kv transmission line design pdf

Aug 09, 2012 dear sir am from neyveli, i have constructed a 2 story house near 230 kv transmission line, our building clearance is horizontal 3. Simply if any line terminates with surge impedance then the corresponding loading in. This standard for transmission line design specifies the minimum structural, electrical and geotechnical. Oct 30, 2009 in new hampshire there are four commonly used transmission voltage levels. Construction of 220 kv sc transmission line on dc tower wzvi, acsr deer conductor, 25 mm radial ice loading on turnkey basis associated with strengthening of transmission system of jkpdd under pmdp scheme15 for 220 kv transmission line north pullu to diskit. Sag in overhead transmission line and its calculation. Surge impedance and surge impedance loading sil of. Tenaska 8 kv transmission line page 2 of 8 conceptual line design patrick performed the conceptual line design with tenaskas direction. This project paper provides the synopsis assessment of all the systems existing 33 11 kv dhaka palli bidyut samity1, savar. Distribution substation a distribution substation transfers power from the transmission system to the distribution system of an area. The overhead lines will form part of kplcs transmission and distribution system. N transmission line standards barbed wire gate for rightofway fences 112. The range of the possible fault current, the effect of load, the question of directionality and the impact of system configuration are all part of the transmission line protection problem.

A distribution substation transfers power from the transmission system to the distribution system of an area. Integration of protection with cmps bigelow substation. Inaddition, a 1994 ieee conference paper is included that covers an extensive analysis and measurements ofradio noise characteristic oftwo 500kv lines located near atlanta, georgia. Line passes above or adjacent to any building or part of a building. The first step to be taken prior to the design or construction of any line is to conduct. This specification does not cover 33kv overhead lines above an altitude of 200m in. The borrower or borrowers representative is responsible for preparing a complete construction contract consisting of the construction contract form rus form 830 or 831 and all applicable specifications, plans, and drawings to construct a specific transmission line project. Transmission line design manual bureau of reclamation. Up to about 33 kv 33 kv transmission line design drawings 33 kv transmission line design drawings ebook download as pdf file. Specification for construction of overhead lines between 1kv and 33kv with aaac conductors. Standard for distribution line design overhead ergon energy. All overhead line designs must use an overhead line design. Construction of transmission and distribution lines.

Application of thesestandards ensure meeting of s ergon energys requirements. Ferc has required that transmission planning processes be open, and transparent, and that. Aep continues to lead this trend in transmission line innovation with the latest bold initiative. The horizontal clearance between the nearer conductor and any part of such building. Iii stages of power transmission and distribution lines project design. Mechanical design of overhead lines cedengineering. This bulletin is an update and revision of previous rea bulletin 651, design guide for rural substations revised june 1978. Hydropower project has been connected to the substation. The standards, project specifications, standard drawings, and project drawings together completely describe the project to be constructed. Since the phases of a highvoltage overhead transmission line must be spaced further apart to ensure proper insulation, a highvoltage line will have a higher inductance than a lowvoltage line. Configuration linesthe transmission lines shall be routed to avoid length of parallelism between power and communication circuits as far as possible. Pnm approach to protecting overcompensated highvoltage.

Distribution voltages are typically medium voltage, between 2. Transmission line voltages nominal kv rms maximum kv rms 69 72 115 121 8 145 161 169 230 242 345 362 500 550 765 800 voltage 230 kv called extra high voltage ehv lower voltages have higher line losses not all voltages in every region. Handbook on construction techniques asian development bank. The bold, or breakthrough overhead line design, initiative set out to design a cutting edge generation. Vertical conductor configuration angle of line deviation. Module 7 distribution line design and cost estimation for rural electrification projects created date. C transmission line standards electric barbed wire gate for rightofway fences.

Patrick designed single pole wood structures to support the single circuit line. Chapter 2 design parameters specification for the construction of 33kv overhead lines across lagoon using transmission towers. This standard for transmission line design specifies the minimum structural, electrical and geotechnical design required for overhead transmission lines used in transgrids network. A singlecircuit transmission line carries conductors for only one circuit. Since most of the insulation is provided by air, overhead power lines are generally the lowestcost method of transmission for large quantities of electric energy. Pnm approach to protecting overcompensated highvoltage lines. Sil is defined as the maximum load at unity power factor that can delivered by the transmission line when the loads terminates with the value equal to surge impedance zs of line. External companies should not these standards use to construct nonergon energy assets. It typically takes longer to develop, permit and construct a transmission line than it does to develop a generation facility. So one double circuit 2kv transmission lines 54 x 2 108 mw only can satisfy this. Chapter 6 substation and transmission line facilities. Connection to one 1 overhead 115 kv transmission line. The construction plan for the energize eastside project is to upgrade both circuits of the existing 115 kv transmission line to 230 kv standards, initially. For design purposes all 110kv transmission lines shall be built in accordance to the 2kv.

Line engineering services full detail design of hvac lines up to 765kv and hvdc up to 800kv providing support to over 31 000 km of transmission lines 220kv,275kv,400kv, 533kvhvdc, 765kv 340 000 km of distribution lines 11kv, 22kv,66kv, 88kv,2kv, busy with designs for over 8 000km of new transmission lines to be. The transmission line voltage classes and substation types included in this study are listed in. System planning, design, construction, and protection. In the 1920s rwe ag built the first overhead line for this voltage and in 1926. At a sub station, the level of secondary transmission voltage 2kv, 66 or 33 kv reduced to 11kv by step down transforms. Completion of the conceptual design followed the following steps. The only disadvantages of high power transmission is distance, insulation of the line and height of towers. The conceptual design was completed in plscadd and the results were exported to an excel spreadsheet to complete the estimating process. Use of structural steel in overhead transmission line towers code of practice is. The redington pond range site will contain the following.

Transmission lines 11 design criteria 11 construction practice, their environmental impacts, mitigation and work process 12 b. Operation and maintenance of 3311 kv substation eep. Power distribution lines 33 kv including high voltage distribution system hvds. This paper presents a case study of 33kv overhead line construction crossing a 200m wide lagoon which requires minimum sagtension design and. They do not have noticeable impact on the transients observed included a triggered gap in the fsc bypass time and also a. Specification for construction of hv overhead lines up to 33kv on. Design lightning outage rates outages100 kilometreyear. The transmission line consists of two circuits with the proposed richards creek substation located approximately in the center of the collocation. Redington wind farm power project substation and transmission. Electrical design parametersof typical 230kv and500kv. The standards contain general requirements for constructing substation and transmission line projects. The input for a distribution substation is typically at least two transmission or subtransmission lines. Table 11 transmission and substation facilities included in this study.

Patrick created plan and profile drawings which are located in appendix a. Pdf analysis and design of 220 kv transmission line. The 33 kv overhead lines crossing over buildings or close enough in the horizontal plane to buildings. Butwalgorakhpur 400 kv crossborder transmission line is in the final stage and the preparation of detail design of inaruwapurniya and new lumki dododhara bareli cross border transmission lines are in progress. One transmission line at this high voltage was built near chicago as part of the interconnection for three large nuclear power plants southwest of the city. Iii stages of power transmission and distribution lines project design, construction and. Minimum separation distance between power and communication circuits should be kept as 61 metres 200 ft. All rus borrowers rus electric staff effective date.

Section vi particular technical specifications overhead lines. Reinforcement project and is for design, survey, supply, installation and commissioning of new 66, 33 and 11 kv overhead lines as well as reconductoring of 33 and 11 kv overhead lines as specified herein and in the attachments. According to a 500 kv transmission line tests carried out stress sag design verification, checking ground found stress design errors and were corrected to ensure the safety of the project. Transmission line voltage classes substation types 230 kv single circuit 230 kv 230 kv double circuit 345 kv 345 kv single circuit 500 kv ac. The 33 kv overhead lines crossing over buildings or close enough in the horizontal plane to buildings such that the nearest conductor is within falling distance then h or other approved structures shall be used with reinforced insulator strings. This paper presents a case study of 33kv overhead line construction. The high voltage transmission has some advantages as compared to low voltage and high level of current transmission i. Selected five line arrester locations along gntl after consultations with transmission line design all line arresters are rated 353 kv mcov arresters on the mmtp were not included in the model. Pdf work specification for the construction of 33kv overhead lines. Transmission plans are often evaluated in forward looking ten year plans, and are refined as circumstances change.

Pdf chapter 2 design parameters specification for the. Transmission line tenders online latest info about. Chapter 2 design parameters specification for the construction of 33kv overhead lines across lagoon using transmission towers august 2020 in book. Stages of power substation project design, construction and related environmental. The arrangement of the parameters equivalent circuit model representing the line depends upon the length of the line. Transmission lines are exposed to short circuits between phases or from phase to ground. The emf design guidelines are intended for new construction or major reconstruction of electric utility transmission, substation, and distribution facilities. Standard for subtransmission overhead line design version 4. Module 7 distribution line design and cost estimation for. The primary pnm transmission voltages are 115 kv, 230 kv, and 345 kv, with most of the transmission lines operat ing at 115 kv. Generally, electric supply is given to those heavy consumer whose demand is 11 kv, from these lines which caries 11 kv and a separate. Ministry of power mop, goi has appointed powergrid as design cum. Generally, electric supply is given to those heavy consumer whose demand is 11 kv, from these lines which caries 11 kv and a separate sub station exists to control and utilize this power. The major pnm interconnections are at 345 kv, with a backbone system at 115 kv.

Why electric power transmission is multiple of 11 i. Since the spacing between lines in buried cables is very small, series. E rapdrp jbp survey of the proposed route of line the first step to be taken prior to the design or construction of any line is to conduct survey of the country over which the line. An overhead power line is an electric power transmission line suspended by towers or utility poles. Rajarshi shahu college of engineering,pune 33,maharashtra,india terrain category. If the capacitance between each insulator pin and ground is 11% of self. The following includes electrical design parameters and emf calculations for typical 230kv and 500kv transmission lines terminated into plant vogtle. Design verification of stress and sag for 500 kv transmission. The grid is the network of transmission lines that interconnect most large power plants on the north american continent. Distribution lines 36 design criteria 36 construction practice, their environmental impacts, mitigation and work process 37 iv. This standard and any referenced standards were created and made available for the construction of ergon energy infrastructure.