Substation construction manual i reference ni000401r122 ver 3 ergon energy corporation limited abn 50 087 646 062 ergon energy queensland pty ltd abn 11 121 177 802 revision history version description of change date 1 initial version 250320 2 content revised and. To better understand the importance of electrical substations, lets start with a discussion about the structure of the power systems and their main components. Urban substations are usually built in brick, whereas rural ones are often installed externally directly on the mv pylon. Design, manufacture and of compact substation of 11kv415 volts, equipped with 2000 kva cast resin transformer, 4 way 11kv ring main unit consisting of 2 nos. If i try to open the pdf file with an online mail viewer like horde or my rackspace app then there is no problem opening the pdf file. All rus borrowers rus electric staff effective date. The largest transmission substations can cover a large area several. A substation is a part of an electrical generation, transmission, and distribution system. Between the generating station and consumer, electric power may flow through several substations at different voltage levels. Power evacuation, main single line diagram, grid interconnection.
Discussion of integrating the transformer into the power system 20190211 20190212 w. Sets and electrical installations of all the buildings at central university of rajasthan during 20192020 for one year. These feeders serve a large number of premises and usually contain many branches. Improves the overcurrent protection of the unit substation. It seems to me that outlook is corrupting the pdf attachments.
By the same analogy we can explain what a substation does. Home technical articles substation main functions and classification primary distribution alstom 145kv gasinsulated switchgear gis f35 at the shuqaiq hv substation in saudi arabia an electrical substation is an assemblage of electrical components including busbars, switchgear, power transformers, auxiliaries etc. This bulletin is an update and revision of previous rea bulletin 651, design guide for rural substations revised june 1978. Pdf maintenance and operation of an electrical substation of 220. Substations transform voltage from high to low, or the reverse, or perform any of several other important functions. Delhi metro rail corporation limited dmrc phase 1 mass. Distribution feeders transport power from the distribution substations to the end consumers premises. The manual is applicable for all substation projects regardless of internalexternal design delivery mode. Electricity has to be transmitted over large distances as the place where the power is being generated and the place where it is consumed can be far apart. Its main function is to receive energy transmitted at high voltage from the generating station, by.
Testing a transformer to verify its suitability for service 4. Substation is integral part of a power system and form important links between the generating station, transmission systems, distribution systems and the load points. If both the main feeder and t2 face a power cut, the standby emergency diesel generator dg sets of total 42 mva capacity comes online to supply power seamlessly to the essential loads. Power system structure the typical power system structure is shown in fig. Design of 6611kv, 20mva substation before the ratings of various items of equipments in a substation are chosen and their locations in the substation decided it is necessary to draw a single line diagram, also called key diagram. The following factors are to be considered in selection the site of an outdoor type substation. Switchgear virtual main arc flash mitigation system. 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. In a substation surge arrester is located at the starting of the substation as seen from incoming transmission lines and is the first equipment of the substation. Please help as it is a real nightmare having to use an online viewer each time i receive a pdf file.
There are different types of power generating substations like thermal, atomic, and hydroelectric. Tender document for noncomprehensive annual operation. Surge arresters are generally connected between phase conductor and ground. Normally stations are where we catch trains or buses. If you continue browsing the site, you agree to the use of cookies on this website. It consists of two dead end poles to terminate the lines, two manual nonload break switches, and primary fusing. Distribution substation a distribution substation transfers power from the transmission system to the distribution system of an area. Delhi metro rail corporation limited dmrc phase 1 turnkey electrification solution electrification of overhead lines, substations and stateoftheart scada solution customer benefits efficient and seamless management, monitoring and control of various parameters of the power network high system reliability and space saving with. Provide for no voltage closing for receiving end breakers and sycnhronosing. Fundamentals of modern electrical substations part 1. Mrs main receiving substation free download as word doc. The most important of any substation is the grounding earthing system of the instruments, transformers etc. Install, test, and provide data interpretation for voltage and current recordings, power quality analyzers, and energy recordings at.
Amendments since publication issue date amendment 1 1999 amendment 1 amendment to formula in section 8. Receiving a transformer after transport to a substation site 2. Mrss is defined as main receiving substation power plants very rarely. Ena technical specification 4124 issue 2 november 2018 page 2 first published, 1992. The rm6 offers a choice of solutions to make 2, 3 or 4 directional connections b with line protection by 630 a circuit breakers b with network switching by switchdisconnectors b with integrated power supply telecontrol devices. Their main functions are to receive energy transmitted at high voltage from the. The substation in bhinmal, jalore343029, rajasthan is one of the largest power grids in the state of rajasthan and the northwest area india. Mrs main receiving substation transformer relay scribd. This document is a reference for the designers of ergon energy substations and it covers all aspects of substation design for both greenfield and brownfield substation projects to meet the performance expected by ergon energy. Primary substations receive power from ehv lines at 400kv, 220kv. With these available dg sets, dial can supply uninterrupted power to. In japan, the protection relay system consists of the main relay and the faultdetecting relay, whose hardware configurations and relay functions are different from each other in order to prevent unwanted operation.
Hitachi is aiming to cover the range of control from the adjusting capacity of the inertial body of the power generator to the automatic frequency control afc. Substation substation a station in the power transmission system at which electric power is transformed to a conveniently used form. Ergon energy corporation limited abn 50 087 646 062 ergon energy queensland pty ltd abn 11 121 177 802. The fence is connected to a separate grounding conductor. Guidelines for substation and power distribution systems of. Properly installed and maintained fire detection and alarm systems can help to increase the survivability of occupants and emergency responders while decreasing property losses figure 14. Pole mounted substation is the outdoor type cheapest form of substation for voltages not exceeding 33kv in which the equipments are installed overhead on hpole or 4pole structure and electric power is almost distributed in localities through such substation. What is distribution substation and its main components. A virtual main arc flash mitigation system can take one of two forms. The input auxiliary transformer is shared for the main relay and the faultdetecting relay. The bus bars may be of either rigid type or flexible strain type depending upon the choice of the designer considering the overall suitability and economy of the substation to be installed. Its main function is to receive energy transmitted at high voltage from. Primary fuses, secondary main breakers and secondary feeder breakers are selectively coordinated.
Distribution voltages are typically medium voltage, between 2. Substation is integral part of a power system and form important links between. Perform low and high voltage work on live circuits and related equipment. Template drawings that support the standard substations are stored in the edms and are identified as an approved standard substation template drawing by the eess. The station may consist of transformers, switches, circuit breakers and other auxilliary equipment.
Design of substation at ehvuhv level 420 kv and above requires special. The input for a distribution substation is typically at least two transmission or subtransmission lines. Power and substations substation map pp melback melback melback e e e e e l ave t ave e e n n on n on on on t e al d d d st phoenix tempe mesa substation station parkandride transit center p 091709. The main bus 33kv is connected to grid located at sector25, indiranagar, lucknow. Mrss stands for main receiving substation power plants. Together with automatic fire suppression systems, fire detection and alarm systems are part of the active fire protection systems found in many occupan. The first step in planning a substation layout is the preparation of a one line. Introduction the primary purpose of an electricity distribution system is to meet the customers demands for energy after receiving the bulk electrical energy from transmission or subtransmission substation. Assembly and processing of a transformer at site 3. Basically, substation consists of power transformers, circuit breakers, relays. Tribal leader forum series feb 78 2012 5 diagram of generation, transmission, distribution system.
Method 1 substation with a single transformer when the plant foresees installation of an. Nesco has adopted the philosophy of installing open terminal air insulated substations. Substation configuration reliability 1 reliability of substation configurations daniel nack, iowa state university, 2005 introduction while one of the strongest points in a power system is the electric substation, it still contains what could be described as weak points or points of. In the event that items received are too large or bulky to be delivered to the receiving. Technical specification 4124 issue 2, november 2018. How is main receiving substation power plants abbreviated. Surge arresters or lightning arresters discharge the over voltage surges to earth and protect the equipment insulation from switching surges and lightning surges. Main tasks associated with major substations in the transmission and ditribution system include following.
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