Inspections and tests in situ prior to putting into service 61. The decision of a mv or lv supply will depend on local circumstances and considerations such as those me n tioned above, and will generally be imposed by the utility for the district concerned. Minisubstation monitoring system block diagram detailed iv. Portable sid mounted substation with pci 5 kv 200 amp mini load break switch, kva dry transformer 4160480y277 volt, eaton cutler hammer nd31200 secondary circuit breaker, startco se105 ground fault pilot check relay, neutral grounding resistor, 750 kva control power transformer, incoming cable gland. All rus borrowers rus electric staff effective date. Minisubstation minisubstations will be strategically positioned on site alongside the internal streets connected by an underground mv cable in a ring feed configuration.
Between the generating station and consumer, electric power may flow through several substations at different voltage levels. Cost sufficient reliability without excessive cost 3. Mts series miniature tunnel substation the mts series unit has been designed to operate at voltages below 1100v. Distribution transformers, mini substations camelion. To better understand the importance of electrical substations, lets start with a discussion about the structure of the power systems and. Eaton s minipower center incorporates an encapsulated transformer, interior, primary and secondary main circuit breakers in to a single assembly. 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. Mini substation mini substations will be strategically positioned on site alongside the internal streets connected by an underground mv cable in a ring feed configuration.
Selection of the location of a substation must consider many factors. Portablemobile substations product categories atlas electric. To better understand the importance of electrical substations, lets start with a discussion about the structure of the power systems and their main components. The design based substations are indoor, outdoor, foundation mounted and pole mounted substations.
The electricity substation is a network of electrical equipment which is connected in a structured way in order to supply electricity to end consumers. Substation transformer installation, operation, and maintenance instructions and parts replacement information coope ower effective june 2016 series supersedes s2101510 february 20 substation transformers mn202002en. Thus, measurements should be made at multiple locations within the site. The input for a distribution substation is typically at least two transmission or subtransmission lines. Siemens compact substation manufactured by raban al safina group of companies\iraq. This model was chosen because of the number of pins available.
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. A mini project report on operation and maintenance of 2202kv power substation. 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. Electrical substation equipment for transferring of electrical power from generating unit to distributing units various types of electrical equipment are required. Guidelines to properly designed substation grounding. Fundamentals of modern electrical substations part 1.
The oneline diagram defines the design parameters and scope of the designa road map. Oct 20, 2014 siemens compact substation manufactured by raban al safina group of companies\iraq. Standard mini substation 800kva 11 000v 50hz transformer information. Airports company soc ltd invites tenders for the maintenance of mv switchgear, transformers, ring main units and minisubstation at or tambo international airport.
Utilising standard voltages of v and 415v the design enables the user to power remote machinery whilst remaining in the low voltage. Type b miniature substation with all compartment doors open. Distribution transformers shall be in accordance withapplicable parts of c57 ieee and westerns requirements which include limits on percent impedance voltage ratings. Two portable skid mounted mini substations with 5 kv fused mini load break switch, 150 kva 4160480277 volt dry transformer, 112. Before the design of the grounding system begins, soil resistivity measurements need to be taken at the substation. A substation is a part of an electrical generation, transmission, and distribution system. Customer substation manual 6272019 preface page 8 of 82 010. Monitor electrical values for a simulated miniature power substation. The correct application of a mini substation requires an appropriate design of a reticulation system. Substation transformer installation, operation, and maintenance instructions and parts replacement information coope ower. Pdf design and installation of a mini hydro electric.
From the above information, finally, we can conclude that a subsystem is an essential part of a power grid, and forms a. Threephase dry type power transformers provide more ideas for electrical design. Substation transformer installation, operation and. All minisubstations shall be as per eskom approved specifications.
Freehand sketches or skewed scans will not be accepted. Oil gauge yes rating plate yes thermometer pocket yes drain and filler valves no trr. Design the main considerations taking into account during the design process are. The mini substation monitoring system will be comprised of a functioning substation protection relay, wireless communications, a data collection and monitoring device, a graphical user interface, and a fault recognition and notification system. Maintenance of mv switchgear, transformers, ring main units. In particular, attention should be paid to faultcurrent interruption, which should be provided for by the appropriately rated fault interrupting switchgear in the mini substation or elsewhere in the system. When a decision to supply power at mv has been made, there are two widelyfol lowed methods of proceeding.
Electrical consumables on offer is a wide variety of elctrical consumables including lugs, ferrules, cable, breakers, disconnectors, insulators, meters and measuring instruments. Substation construction manual page 2 of 57 reference ni000401r122 ver 3 ergon energy corporation limited abn 50 087 646 062 ergon energy queensland pty ltd abn 11 121 177 802 4. Yuebian power transformer yuebian switchgear and substation s 400kva test report scb11 2000 test report. Prepared by the subcommittee on the design of substation structures of the. All our mini substations are powder coated to customers specification and supplied coastal ready where applicable. What they are really capable of delivering by rhett kelly and greg whyte, actom medium voltage switchgear the latest edition of the south african national standard for miniature substations, sans 1029 edition 3, was published in 2010 and has thus been in place for at least six years.
Compliance with all technical requirements all energize elements comply with the required clearances clearances verify compliance with the last requirements of the national electrical safety code or prepa diseno subw\copy of svc subst profile 2. A mini project operation and maintenance of a 2202 kv. Medium voltage products technical guide the mvlv transformer. The minisubstation monitoring system will be comprised of a functioning substation protection relay, wireless communications, a data collection and monitoring device, a graphical user interface, and a fault recognition and notification system. Substations transform voltage from high to low, or the reverse, or perform any of several other important functions. Weg transformers africa is a group company of the zest weg group. Actom mobile miniature substations 2 magnet road, knights, 14, po box 24, knights, 14 tel.
The ergon energy design philosophy is to provide substations. Distribution substation a distribution substation transfers power from the transmission system to the distribution system of an area. All mini substations shall be as per eskom approved specifications. The correct application of a minisubstation requires an appropriate design of a reticulation system. Other requirements of the substation electrical system 56 10. Only tenderers that satisfy the eligibility criteria as stated elsewhere in this document can tender. Pdf design and installation of a mini hydro electric power. South african national standard miniature substations for. Mini substation monitoring system block diagram detailed iv. Substation single line diagram sld a single line diagram sld of an electrical system is the line diagram of the concerned electrical system which includes all the required electrical equipment connection sequence wise from the point of entrance of power up to the end of the scope of the mentioned work. The difference between the ground potential rise and the surface potential at the point where the person is standing while at the same time having a hand in contact with a grounded structure.
Microcontroller for our project we will use the pic18f4550. In particular, attention should be paid to faultcurrent interruption, which should be provided for by the appropriately rated fault interrupting switchgear in the minisubstation or elsewhere in the system. Substation design volume ii physical layout instructor. Portablemobile substations product categories atlas. Guidelines to properly designed substation grounding system eep. Maintenance of mv switchgear, transformers, ring main. This bulletin is an update and revision of previous rea bulletin 651, design guide for rural substations revised june 1978. Distribution voltages are typically medium voltage, between 2. Stations with uniform resistivity throughout the entire area are rarely found. Dec 25, 2018 the electricity substation is a network of electrical equipment which is connected in a structured way in order to supply electricity to end consumers. A small switching station may be little more than a bus plus some circuit breakers. Western will require 40 calendar days to answer correspondence pertaining to each submittal of data or drawings. Mini substation in south africa gumtree classifieds in.
Substation transformers are designed for installation on. What they are really capable of delivering by rhett kelly and greg whyte, actom medium voltage switchgear. The microcontroller seen in figure 3 is the heart of the project. The mini subs will be mounted on top of a purpose made precast concrete base. The equipment like bus bars, isolator, power transformer etc. Tambo international airport ort 1012017 tender notice and invitation to bid t1. Primary voltage 11 000v secondary voltage 420v frequency 5060hz 50hz impedance % 5 vector group dyn11 hvlv winding material al welded or. Distribution substations michigan technological university. Method 1 substation with a single transformer when the plant foresees installation of an. This paper presents a general description for di f ferent mvlv substation a nd a methodo logy to design t he various ele. As in the case of 2kv substation, the single line diagram sld shall show. Transmission substations can range from simple to complex.
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