11kv transformer installation procedure. This guide is necessarily general in nature.

11kv transformer installation procedure 75 meters minimum (8 Ft) 2. Another option is to install and commission a 33/1 1 KV substation (rating in multiples of 8, 10, 12. 5kV 1. Following tools shall be used for the installation of HV switchgear of 11 KV. Additional equipment 18 6. All bushing shall have a minimum creepage distance of 25 mm/ KV. Relocation of transformers between substations or sites can also be carried out with full road movement management and refurbishment on re-location. There are three main steps in installing a transformer: mounting the unit, connecting the primary and secondary windings, and grounding the unit. The power supply for the end users is 415 V, 3 Phase (240 V, 1 phase), 50 Hz. The key steps include safely transporting the transformer to the site, checking it against the delivery documents, and mounting it according to manufacturer specifications while b) Height of top of HV bushing from ground for plinth mounted transformer should be 2. 415 auxiliary transformer was also needed to supply the substation with reliable AC power. 1) Mounting the Unit: Transformer units must be mounted on a level surface that can support their weight. It describes the steps to isolate and ground the panels, measure insulation resistance and inject test voltages phase-to-phase and phase-to-ground. Operation 14 5. For transformers larger than 100kVA, a platform is recommended. 11 KV Maximum system voltages 33 KV System 36. During measurement of insulation resistance, the transformer 40MVA 132/11kv transformer feeding PGI Tendum isolator, used for rectification works to isolate the equipment Transformer Gantry Transformer LA Current Transformer(CT) Tendum Isolator 9. Jul 3, 2024 · An extensive power transformer installation checklist covers reception, storage, foundation work, assembly, & testing readiness at new substations. 19 26. TERMINALS Outdoor bushings shall be provided for the 33 KV and 11 KV terminations. PAGE 26 OF 72 Technical Specification for 33/11kV Power Transformers ( APDRP Scheme ) 37. Installing the system. 7 Losses in the substation 52 8. MS Channel & Angle for support structures Construction Procedure and Construction Method 1. During installation ensure that the HV bushings of the transformer are on the DO unit (or 4 Transformer Installation, Operation and Maintenance Manual 004-0987-000 Installation Procedures FOLLOW ALL LOCK-OUT/TAG-OUT PROCEDURES The document provides the procedure for commissioning high voltage switchgear at the APML Unit # 660 MW Super-critical power plant. C voltage in the winding you will lose the transformer windings, so please refer to the specified D. 40 KV to 50 KV testing standing voltage is used for 11 KV HT system. Ideal for skid-mounted substations, it ensures compliance, reliability, and efficiency in a compact package. Technical specifications of the switchgear are also 11KV SAT Procedure - Free download as PDF File (. ) for use on legacy parts of the Erection of power transformer (by Entel Energoprojekt in Abu Dhabi Distribution Company, 33KV & 11KV Network for Ghuzlan Island) This technical article deals with transformers and their installation so we restrict ourselves here to the procedures associated with their commissioning. WI-NET-SST-035 - 11 kV Ring Main Unit, Metering Unit, Neutral Voltage Displacement for use in Secondary Substations– Installation Instruction. 0 11kV HT 3C, 400 Sq. Installation of transformers should be done in an apt way keeping in mind their specific applications and mode of operation. 3 Current transformers for relay protection 13 4. 3kV 1000kVA 11 kV/ 415V unit. The procedure involves pre-commissioning tests, commissioning checks, and ensuring safety, emergency procedures, and proper staffing. The RMU shall be both Non extensible/extensible. 0 11kV HT Cable (1CX800 SQmm) Copper for 11k kV side of 132/11 kV Transformer alongwith accessories and termination equipments KM 1 4. CLPP will install 11/0. ) 12 kV 36 kV 2 Rated Voltage (HV) 11 kV 33 kV 3 Rated Voltage (LV) 433 - 250 V* 4 Frequency 50 Hz +/- 5%* 50 Hz +/- 5% 5 No. This guide is necessarily general in nature. Jan 8, 2020 · This paper discusses about installation of 11/0. UNITED ARAB EMIRATES FEDERAL ELECTRICITY AND WATER AUTHORITY DETAILED TECHNICAL SPECIFICATION FOR 33 / 11KV 20 / 28MVA POWER TRANSFORMER, NER and RTCC PANELS. Jun 18, 2023 · Power transformers are vital for transmitting and distributing electrical power systems. Cable + Switchgear including Transformer (3), (4), (5) Phase- Earth, DC pressure test combined installation in accordance with section 11. Cable + Cable 11kV fault repairs and small Installation and Operational Manual for RMU - Free download as PDF File (. Detailed Technical Specification for 33-11kv 20-28mva Power Transformer - Free download as PDF File (. These transformers have reached their intended operational capabilities, and recent condition assessments also indicate that there is a need to replace both transformer The document outlines the procedure for turning off and on a 11kV VCB switching circuit. Common Pre-commissioning Tests of Transformer Insulation resistance values of various winding should be checked. Proper planning, professional execution, and adherence to standards are crucial for successful installation. She is skilled in renewable energy systems design, electronic equipment installation, maintenance, fault finding, project management and has vast experience in negotiating contracts and project variations. Calibrate all thermal gauges, hot-spot heaters, bridge RTDs, and associated alarm contacts. TECHNICAL SPECIFICATION FOR ERECTION, TESTING & COMMISIONING OF 33/11KV ITPO GIS GRID SUBSTATION the distribution transformer(s) will be 80%. The distribution transformer installation project in the distribution network project has a large total number of small units, many points and a wide range of construction teams with different levels of management is more common. The 1000kVA Skid-mounted Transformer is designed to meet AS/NZS 60076 and IEC 60076 standards for the Australian market. This document provides instructions for installing 11kV cables, joints, and terminations at the Doha South Sewage Treatment works project. 4 Gas pressure 14 5. 6. We supplied and installed 66KV SF-6 (Sulphur Hexafluoride) breaker, 2 Nos. The transformer, arrestors, and other components are mounted directly on the pole to provide all locally approved procedures and safety practices before installing or operating this equipment. cable, for upto 400 KVA Transformers and Bus trunking for higher than 400 KVA transformers, inter-connection between transformer’s M. No. 6 Importance of correct orientation of terminations 127 7. I am a professional electrical engineer with experience in transformer service and maintenance. Sealed type transformer Hermetically Sealed Totally Oil Filled Sealed type with gas (N2) cushion ii. The main equipment in Fahari substation consist of: Transformers: To step down the 33kV primary voltage to 11kV suitable for distribution purpose. 11kV Transformer Installation Procedure. It outlines the scope of work, which includes general descriptions, tools and equipment used, material storage and handling procedures, site planning, work methodology, health and safety plans, environmental considerations, and quality assurance processes. step of bringing transformation to the low voltage and ensuring the protection and monitoring of the network. dust during installation and operation. This method statement explains and covers the transformer installation & inspection procedure of cast resin Transformers, although it is applicable for any other type as well. 4, en 2009. 2 Cable connection 12 4. of 66KV for Potential Transformer (PT) for metering & protection. Jan 8, 2020 · This paper discusses about installation of 11/0. Transformer is used to transform the high voltage powers to low voltages, so that it is useful for domestic purpose. 6kV cables, including fault repairs, cable overlays, and the 5. staff involved in theGIS installation needs tobe properly trained well , aware of the high voltage electrical andmechanical risks, and the chemical handling aspects. 02. 0 Power Cables - (145kV grade) Types of Transformers Based on insulation and cooling medium: Oil immersed transformers i. 2 Effective Date 17-11-2021 1. Scope 7. Maintenance of a Power Transformer Test oil sample of transformer main tank & tap changer tank Check condition of oil gauges and oil level Check for oil leakage & integrity of gasket joints Check the tightness of nuts & bolts Check the insulation resistance of bushing Check that silica gel crystals are blue Re-greasing of bearings Check the performance of oil temperature & winding Brooklyn Transformers & Electricals - Offering 11 Kv To 440 Three Phase Power Transformer 1250 Kva, For Indoor, Input Voltage: 11000 at ₹ 35000 in Ahmedabad, Gujarat. It includes items such as 132kV and 33kV GIS equipment, substation earthing systems, cables, accessories, protection and control equipment, metering equipment, substation automation systems, and AC systems. This post describes transformer installation. Generally, it is a common practice to have a manufacturer’s representative present during the installation to direct utility staff or contractors. Item 11 kV Distribution Transformers 33 kV Distribution Transformers 1 System voltage (Max. 38kV transformers at WKT, SSS and ancillary buildings to obtain power from the 11kV switchboard and step down the voltage to 380V for Check the contact resistance for the bus bar I breaker as per the procedure mentioned below Check the Breaker timing test. Step-6 On the one hand, we can all use package unit type, that is to say, 33kV and 11kV equipment are installed in all units, and constitute full unit type transformer. It outlines safety and quality control requirements, including proper handling and storage of materials. Humidity 1. May 2, 2024 · This procedure is used to determine the way of supply and installation of Transformers for the project. The first step is to prepare the site by clearing and leveling the area where the transformer will be installed. 2 This procedure shall be carried out by the Commissioning Engineer or his appointed During 11kV installation, remember the general guidelines for installing transformers to minimize problems and unforeseen injuries and accidents. Many countries have their own national standard, based on this international standard. The Control supply shall be 220V DC. 3 KV 11 KV System 12 KV Nominal short circuit level (Basing on apparent power) 33 KV System 31. The Installation chapter deals with transport and unpacking and then procedures follow in the correct order. They adjust voltage levels, enhance power quality, and isolate network sections. This document provides a schedule of rates and prices for plant and mandatory spare parts supplied from abroad for a substation project. 4 Earthing Transformers . Sub-100 kVA single-phase transformers are mounted above the secondary mains. 6 TYPE OF TRANSFORMERS How To Establish A Pad-Mounted Transformer Installation? Padmount transformers are steel cabinets used for electric power distribution. 3 kV, 6. of 66KV Surge Arrestor, 3 Nos. It details the necessary preparations such as inspecting the installation area and lifting equipment. V. 6 Level of noise in the transformers 51 7. There are two main types of maintenance of transformer. Transformers should be inspected for Transformer Rewind Test Facility –Rotek: 800MVA 11kV networks •32kV, 11-33kV networks •Repeated after installation •Sweep: 5Hz to 45MHz. Things You Would Require. 60 KV testing standing voltage is used for 33 KV HT system. Transformers with primary voltages of 3. 5 Terminations to GIS installation 125 7. 5 Example of a transformer for a transformation substation 51 7. e. The metering and protection relays shall be part of switchgear only. A transformer should not be stored or operated in the presence of corrosive vapors or gases, such as chlorine. Two 11kV feeders will be provided for the supply to the high voltage chillers at WKT. These steps are described in detail below. 6 kV. ST: TP21D/3 March 2018 - 4 of 90 - (c) High voltage cable for inter-connection between the H. Strictly adhere to the manufacturer’s safety recommendations for handling & using the Lochay 132/11kV Transformer Replacement Project overview SHE Transmission is proposing to replace and relocate the two 25MVA 132/11kV grid transformers at Lochay power station. installation and operation manual for RMU Feb 24, 2012 · A power transformer requires various routine maintenance tasks including measurement and testing of different parameters of the transformer. 3. Control voltage shall be 220 V DC. Two Load break isolators for incoming & outgoing cables and one Circuit breaker for transformer protection shall be enclosed in the main Distribution Transformers Distribution Transformers 10 KVA – 5 MVA ( up to 33 Kv Class ) A Distribution Transformer is a transformer that provides the final voltage transformation in the electric power distribution system, stepping down the voltage used the voltage used in the distribution lines to the used by the customers. Supply and Installation of TWO 11kV/33kV New Vuda PS Generating Transformers Bidding Document ii Invitation for Bids Date : 23rd Sept, 2017 Tender No : MR 238/2017 The Fiji Electricity Authority ("the Employer") invites sealed bids from reputable transformer Supply and Installation of TWO 33/11kV Wailekutu Transformers Bidding Document: Revision 1 ii Invitation for Bids Date : 9th August, 2019 Tender No : MR 246/2019 Energy Fiji Limited ("the Employer") invites sealed bids from reputable transformer manufacturer Mar 29, 2019 · Tan Delta Test of Transformer- Full procedure explained Step by Step in detail. 6 Go through the installation manual of the 33KV Transformer for essential details regarding tools, reporting damages and so on. By Pranali N 29. If these safety precautions are neglected, disastrous consequences like injury, emergency shutdown, or total system breakdown may occur, all of which jeopardise the facility’s operation. Nov 30, 2022 · I started Aman Engineering Solutions YouTube Channel with the goal of offering viewers a glimpse into my knowledge and experiences in real time projects. For each equipment, it details the specific tests that should be conducted to ensure proper functioning before This method statement outlines the procedures for installing a 33KV power transformer on a construction site. They are usually fastened on concrete pads. Additionally, various instruments associated with the transformer should be checked. Handling and installation Transformers should be lifted by the lifting lugs only. This document provides a method statement for installing an earthing, bonding, and lightning protection system. In order to achieve the greatest value out of this investment, it is vital that transformers are properly installed, designed, and manufactured. 1. g. The schedule lists each item, its description, unit 11kV distribution rings to further enhance the security level of the 11kV distribution network for XRL. (d) M. The transformer should be connected only as described on its nameplate. 275 ASTM D-1275 Specification for Power Transformer IS-2026:2011 IEC 296-1969 Insulating Oil for transformer & Switchgear IS-335/1983 Specification of Insulating craft paper IS:9335 Specification for insulating press board IS:1576 Electrical transformers are available in a wide gamut of sizes and each type has individual usages. 1 Operating conditions 14 5. 1 International/National standards 131 8. 1KA Insulation levels : 33 KV System 170KV (peak) 1. 44 kV substation. Safety is confirmed at each stage using voltage detectors. Step-4: Push the transformers inside transformer room. What is 11kv transformer? 11kV transformer refers to the transformer, if it is a step-up transformer, to increase the voltage from 11KV to a higher voltage level, such as 33KV, 34. The switchgear shall be equipped with Vacuum circuit breaker. Avoid jerky movement of the transformer while lifting it upwards during installation . Our area of expertise includes installation of Power & Distribution Transformers, Switchgears, Control and Protection Panels. connection between 33/11 KV Power Transformer T-1 & T-2 to 11 KV Switchgear as per approved design & drawing and instruction of Engineer-in-charge /Employer. Safety procedures are also described, with emergency contact numbers and responsibilities defined. The successful operation of a transformer is dependent on proper installation as well as on good design and manufacture. Feb 24, 2012 · After installation of power transformer, several pre-commissioning tests must be performed before putting the transformer into service. 1 Connection of the transformer and the LV switchgear May 31, 2024 · Transformer Testing and Commissioning Procedure. 2 Special purpose transformers such as gas cooled, synthetic liquid insulated, dry type and mining transformers, and instrument transformers are excluded from the scope of this code. 5MVA 33/11kV Dyn11 oil cooled power transformer is available now from Slaters Electricals. ☑ For Sale ☑ For Hire This Brush 20/40MVA 33/11kV Dyn11 oil cooled power transformer is available now from Slaters Electricals. Support Structure: a) Fix wheels to take load of Transformer Electrical system: a) Selection of size of power cable & control cable based on Transformer rating TG-NET-SST-026 - Ratings of Oil-Filled Power Transformers. The document provides test procedures and reports for site acceptance testing of electrical equipment, including: 1) Method statements for testing metal clad switchgear, circuit breakers, current transformers, and voltage transformers. The 11 KV termination shall include a neutral bushing of identical type and rating to the phase bushings. Inspection during Installation The transformer should be carefully inspected for any damage due to handling after receipt. 6kV, 3. 2 Nominal voltage ratings i Primary voltage - 11 kV & 22 kV ii Secondary voltage - 0. Check the secondary injection for relays if required. I Nov 3, 2018 · LIKE | COMMENT | SHARE | SUBSCRIBEHello! Friends I am Muhammad Asif Ek Aur new video | Install Transformer | 100 Kva Transformer Installation | 11Kv Transfor Aug 17, 2021 · My Dear Viewers, This is an modified version of Video regarding Erection of Two Poles mounted Distribution Sub-Station of a uploaded video after rectificati of dry-type distribution and power transformers Introduction Transformers are often one of the most costly and critical pieces of equipment installed in a power system. We perform one group on a routine basis (known as preventative maintenance), and the second group on an ad-hoc basis (i. 0 PURPOSE. Transportation by truck The transformers must be tightly secured at the top and bottom on the Oct 22, 2024 · When your transformer arrives on site, various procedures should be carried out to assure successful operation (installation, testing and various checkings). #: SCM-SPEC/XD/DT2 Rev. Also find Power Transformers price list | ID: 23035435712 JKR 11kV Transformer Test - Free download as PDF File (. The self-cooled three phase pad-mounted transformers depend entirely on the air that circulates in their Dec 26, 2018 · This test is used to determine the phase relationship and polarity of transformers. 3 Installation and replacement of fuses 16 5. Then, the transformer foundation is built to support the weight Nov 8, 2018 · Power Transformers; Substation equipment. There are many types of transformers like oil type,… 11KV distribution line, lightning arrester, A B switches, drop out fuse, 11KV/440V transformer, LTCB, etc. It lists 7 types of equipment - power transformer, 33kV circuit breaker, 33kV CRP panel, 11kV switchgear, CT testing, VT testing, and protection relays. It outlines the purpose, scope, responsibilities, tools, materials, handling and storage procedures. Let’s see how to install an electrical transformer with safety and efficiency. One 33kV/0. Due to their complexity and cost, proper installation, testing, and maintenance are crucial for their performance and safety. There are occasional requirements for other primary voltages (6. 6KV/0. Purpose Purpose of this document is to document updates & history, upkeep and publish the specifications related to Distribution Transformer 11kV/433V, 100,160, 250 & 500 kVA in a professional manner. Additional information These instructions cannot cover all details or variations in the equipment, procedures, or process described, nor to provide directions for meeting every possible contingency during installation, operation, or maintenance. 3. In my country, if we are making a substation and our supply voltage is 11 kV then we can install our transformer inside a room. 1 Single Room Sub-Station (HT Switch Room): 1. 2 Operation 15 5. Three phase Dyn11 64kVA 11 kV/±240V An ACTOM Converter/VSD Dual phase ACTOM distribution transformers Transformer will operate are designed and manufactured to continuously at the full rating plate the highest quality standards to values. of 66KV Current Transformer (CT) and 3 Nos. These tests assist in the verification of the installation procedure and the comparison of transformer results obtained during factory testing. 3 During design of an electrical distribution system including a transformer, care shall be taken with the following aspects; a) selection of transformer installation site having adequate ventilation, normal Technical Specification For 11 kV Packaged Substation Page 1 of 77 Technical Specification for 11 kV Packaged Substation (With 250 / 400 / 630/ 1000 kVA Distribution Transformer - Hermetically Sealed Oil Type / Dry Type Transformer) Specification no – SP-PSSC-38-R7 Prepared by Reviewed by Approved by Rev Date Range of Distribution Transformer: 10 KVA to 10000 KVA Voltage Rating: 33KV-11KV-6. Features of BIS-1180 Transformer Installation & Relocation; Transformer Servicing & Maintenance; Installation & commissioning of 2 x 11,5/23MVA, 33/11kV transformers. Cable + Transformer Phase- Earth, DC pressure test combined installation in accordance with section 11. 4 Selection criteria for transformers based on capitalization of the losses 49 7. txt) or view presentation slides online. The transformers shall be suitable for continuous operation on an 11 kV, 3 phase, 50 Hz electrical power distribution system with neutral earthing conditions and maximum phase fault levels as follows: 11 kV solid earthed 20 kA for 3 seconds 415 V solid earthed 31. panel and transformers including terminations. • The transformer must always be stored filled with liquid 1 - GENERAL 1. Set the transformers to their final placements and ensure that they are securely secured and protected. txt) or read online for free. Ensure that base channel is horizontally leveled . The phase angle between the high voltage and the low voltage windings varies between 0⁰ and 360⁰. 33kv Sub-station with two 40MVA(132/33kv) transformers 40MVA 132/33kv Emco Transformer Post insulators Current Transformer(CT) 33kv Bus Bar 33kv GAntry 33kv Installation of a 1600 kVA transformer is a multi-step process involving site selection, foundation building, electrical connections, cooling system installation, grounding, and safety measures. Feb 15, 2024 · As an electrical engineer with 5 years of experience, I focus on transformer and circuit breaker reliability in 110/33-11kV and 33/11kV substations. Approved shop drawings will be posted at the workplace for site reference used and installation works. 1 This procedure details the testing and commissioning procedures for ground-mounted and pole- mounted distribution transformers that shall be satisfied before the transformer can be accepted as fit for service and energisation. Prepare and follow operating instructions for a successful installation. Put the testing pot on testing place. The transformer should be kept upright Dec 9, 2023 · Meggers, available in 500 V, 1000 V, 2500 V, and 5000 V ratings, are used to assess insulation resistance. Panel as specifi ed. In this structure transformers 49 7. 1. 5. 3kV, etc. It outlines the objectives to commission the 6. 5 %âãÏÓ 129 0 obj > endobj xref 129 40 0000000016 00000 n 0000001791 00000 n 0000001912 00000 n 0000002408 00000 n 0000002729 00000 n 0000002996 00000 n 0000003553 00000 n 0000003830 00000 n 0000004294 00000 n 0000004555 00000 n 0000005169 00000 n 0000005702 00000 n 0000005792 00000 n 0000005904 00000 n 0000006444 00000 n 0000006925 00000 n 0000007361 00000 n 0000007638 00000 n If the transformer is shipped and stored in dry inert gas, the gas pressure should be maintained and periodically tested. For example, a transformer with the code DY11-11-630 has the following characteristics: single-phase distribution transformer (DY), rated voltage of 11 kV (11), and power rating of 630 kVA (630). At Daelim , we guarantee safe and high-quality transformers that are affordable and worth your money. It also lists the main resources needed, including equipment, materials and ☑ For Sale ☑ For Hire This Brush 25/31. 5 + 11 = 19. Step-5: Submit an Appeal for Inspection for the Transformer Installation. 7 Summary 128 8 Standards and testing 131 8. #: 0. or application. 2/50 μ sec impulse withstand voltage 11 KV System 75 KV (peak) The document forms the Appendix to, and must be read in conjunction with, G81 part 3 - Framework for design and planning, materials specification, installation and record for low voltage housing development installations and associated new HV/LV distribution and/or G81 part 6 - Framework for Installation and Records of Commercial and Industrial Jun 9, 2021 · Do not choose the megger test voltage as standard 5000 volts as some transformer’s manufacture has low insulation for big transformer neutral points, for example, 500MVA, 500kV Transformers and if you apply 5000 D. Then, the transformer foundation is built to support the weight 11kV Transformer Installation Procedure. Transformers IS-6600/1972 BS-148 Manual on Transformer CBIP Publication No. 5 MVA power transformers) and further installation of and power transformers covered by IS : 1180- 1964t and IS : 2026$ ( issued in various parts )-1977$ respectively. It then describes the step-by-step process for installing the earthing system, including driving earth rods, measuring resistance, laying cables, and making connections. It consists of a transformer mounted on an H-type pole that steps down the 11kV supply voltage to 400V. 16 Instruction for installation, use and maintenance for Current and Voltage (potential) transformers This installation, use and maintenance guide is valid for current and voltage Jun 26, 2024 · Refer to Figure 1 (a), (b), (c), (d). 6 kV, 11 kV, 22 kV and 33 kV in the country. Installing a 11kV transformer involves a series of procedures that must be followed to ensure safe and efficient operation. It is preferred to use a 5 kV motorized or digital megger for measuring the IR values of EHV You can mount multiple transformers onto a single pole as long as the weight is evenly distributed and the total weight is within the safety limits of the pole. First the 11KV supply is coming from State Electricity Board to the DP structure through cable via metering unit at the A B switch then drop out fuse then pin type insulator and then it goes to the transformer HT bushing. 5KA 11 KV System 13. HV Switchgear and accessories shall be in line with the approved material submittal and approved drawings by authorities and as per rules and standards. Jan 30, 2019 · The following material will be used for the installation of Transformers and accessories: 1. The nameplate rating on the unit should be checked against the job specifications to ensure installation of the correct transformer. 2. of HT Switches. WI-NET-CAB-132 - 11 kV and 6. Transformer Indoor Installation: There is some specification if you want to install a power transformer inside a room. d. Safety. Method Statement for the Installation of 11kv Hv Switchgear - Free download as PDF File (. 433KV Service Location: PAN India Mobilization of Team: within 3days of commencement Check points before Installation of Distribution Transformer Sep 13, 2018 · 7. Installation of 33 KV/11 KV Transformer along with the required panels. 5kV Recommended Test Voltage at site 8. (e) L. Distribution Transformer 11kV/433 V, 100, 160, 250 & 500 kVA Doc. This Method Statement defines the procedure step by step to implement the correct practices for Installation of High Voltage HV Cable in order to ensure that the job execution complies with the project requirements and serves the intended function to satisfactory level. Preparing work. 5KV. 25 3. 3 Transportation Distribution transformers are shipped ‘ready for installation’, which means they are filled with the insulating liquid and with accessories fitted. It also includes the designing of the double pole structure. 03. 6, 11, 22 or 33 kV and secondary voltage of 433 V, 3 Phase (and 250 V single phase) are called Distribution 3 1VLM000610 Rev. The Outdoor Power transformer shall be 20/25MVA, ONAN/ONAF Rating with OLTC. 7 Inspect the routing of the floor cutout cables to ensure they follow the exact drawings and specifications. It includes the study of various equipment which are installed on dipole structure. Delivery and inspection of materials upon arrival on site. Where one NER serves all the transformers at the substation, the maximum 11 kV earth fault current is usually independent of the number of transformers and is determined largely by the NER value. It is of much in metro cities and it is future of substation with benefits such as safety, low maintenance, easy monitoring, controllability etc. Other equipment includes lightning arrestors, isolators, fuses, and an oil circuit breaker. This paper presents a general description for different MV/LV substation and a methodology to design the various elements making up the public distribution substation (choice of the emplacement, engineering, p. The step-by-step transformer installation method including inspecting foundations and transformers, checking nameplates, installing according to manufacturer recommendations, installing auxiliaries, making electrical connections, applying earthing, inspecting, and protecting the transformer until testing. The distribution circuit voltages are 3. Inspect the transformer & parts for shipment damage and moisture. T. Soldering iron TESTING & COMMISIONING OF 33/11KV ITPO GIS GRID SUBSTATION - Free ebook download as PDF File (. It covers general requirements, standards and approvals, technical particulars, electrical requirements, design and construction details, testing requirements Jun 6, 2023 · This is why it is essential to always follow proper safety procedures during the installation, normal operation, and maintenance of transformer units. 6kV/11kV switchgear feeders. 433 kV 5. 3 Type tests 134 installation of 11kV & 6. 2 Standards for high-voltage and extra high-voltage cables 132 8. of 66KV three-phase Isolator, 3 Nos. 7. The document provides a method statement for installing 11kV HV switchgear panels. The transformers and accessories will be tagged, crated, and protected for shipping as per the manufacturer’s recommendation. terminals and the M. This document outlines specifications for 11kV distribution transformers. As soon a s GIS equipment is The three phase pad-mounted transformer location should provide enough space: a) to allow the installation maneuvers, b) to have access to pad-mounted transformer at inspection and maintenance tasks, and c) to have good ventilation. 3, 6. This document provides a method statement for installing a 115kV 100MVA transformer at a substation. pdf), Text File (. (i) The transformers shall conform to the following specific parameters : Sl. 5 kA for 3 seconds . 2 A typical Single room substation shall consist of maximum 04 Nos. Installation 10 4. This means that sections in the Manual follow the sequence in which work should be carried out starting with the Installation chapter. Curing is done at 1000 C or at room temperature for the specified time depending upon the type of resin used. 3 The windings of the transformers shall be connected to Delta on the primary side and star (Y) on the secondary side. 1 Low-voltage connections auxiliary contacts 18 Transformer Testing | Transformer Test and their ProcedureFor confirming the specifications and performances of an electrical power transformer it has to need as in the past to de-rate the 630kVA 11kV/3. Procedures Nov 21, 2024 · As an electrical engineer with 5 years of experience, I focus on transformer and circuit breaker reliability in 110/33-11kV and 33/11kV substations. 4 Termination of outdoor HV installation 123 7. transformer compartment and lv compartment they are highly customizable. Panel(s). Step 1. Learn More . Cast Resin ii. The purpose of generating this method statement is to define the procedure step by step to implement the correct practices for medium voltage switchgear panel installation & its accessories through the guidelines contained herein so as to ensure that the job execution complies with specification and serves the intended function to satisfactory level. Connect the auxiliary supply to the respective cubicles as per the schematic drawing; Check the ratio/ circuit for the current transformer by primary injection. Key steps include wearing protective equipment, identifying and isolating related circuits, racking the VCB out to an isolated position and applying safety locks and notices, and racking the VCB back in and closing it to re-energize the circuit. 1 These types of single room substation shall be constructed for the applicants requiring 11 KV bulk supply or for switching purpose of 11 KV feeders / network. Pre-commissioning testing for transformers include: Operational inspection of the protection system Eaton Service Voltage 11 kV Half of Difference Voltage 17 / 2 = 8. of Phases Three Three Transformer 2 Room 30 ft x 20 ft 1. -Fully refurbished and tested prior to dispatch-Short lead-time -Installation and maintenance by our certified engineers available Call our sales engineers now on +44 (0) 191 414 2916 Procedure of casting is followed strictly by the resin manufacturer for the particular resin-mix. So, let's figure out how to install a pad transformer and what goes into the process. This article will provide a comprehensive guide on how to… c. Breathing type with conservator -Oil Immersed Transformer - use oil as cooling and insulation medium Dry type transformers i. 4 Relays 18 6. 1 Cable compartment 11 4. The combination method is especially suitable for the old station transformation in the rural network transformation. Take Installation of new transformers from 11kV up to 400kV can be installed as turn-key projects or stand-alone installations. Sep 21, 2022 · The 11KV Switchgear shall be installed inside the substation building. Oct 25, 2024 · Pre-commissioning tests are those performed on the transformer before it is ordered or authorized on site. mm Aluminum Cable alongwith accessories and termination equipments for termination of 11 kV LT Transformer KM 0. 5/16 power transformer. The transformer bushings should not be used for lifting or moving the transformer into position. If a liquid immersed, indoor-type transformer is stored outdoors it should be thoroughly covered to keep out rain. The purpose of this document is to elaborate on the dynamics of rerouting the power supply from the old plant to The contents of this Manual follow the procedures for working with AX1. Keywords- Ring Main unit (RMU), Compact substation (CSS), Air Circuit Breaker (ACB), Hermitically Sealed Transformer. Check Daelim Pad Mounted Transformer Installation And Maintenance Manual. But you can do it when you get the permeation from the government. 2 The purpose of this Instruction Manual is to provide guidance on the installation, commissioning and maintenance of oil-filled transformers. LV Switchgear and Systems 52 8. 5 kV megger is required for transformer windings with voltage ratings of 430V, 500V, 430V and above, 1000V megger, and 11 kV and above. C voltage to test the The requirement is for Self-Cooled, Pad-Mounted-Type Transformers to be utilised on the 11kV and 20kV distribution networks of Northern Powergrid. The transformer installation will We supplied and installed 66KV/ 11KV, 12. The method statement covers pre-site work Sep 7, 2024 · Make that the transformer’s orientation in relation to the position of the cable entry is proper. Do this before the installation of the 33KV transformer. m 400 18 Laying of 11kV, 3c×185 mm^2 Power Cable including all terminition kits and accessories for 11kV Outgoing Feeders. Another Major Service of High Voltage Electrical Contracting LLC is Installation and commissioning of HT/LV Equipment’s including; 1. 6 kV Fault Level and Earthing Data Calculator – User Guide This document outlines the testing procedure for low voltage (LT) panels, including infrared (IR) testing, high voltage testing, and electrical and mechanical testing. transformer be opened, adequate precautions should be taken as outlined elsewhere in these instructions. (11KV - 33KV) Potential Transformer For Outdoor Installations (11KV - 33KV) Combined CT-PT Metering Unit For Outdoor Installations (11KV - 33KV) Epoxy Resin Cast Pilfer Resistant Metering Cubicle For Indoor Installation (11KV - 33KV) Epoxy Resin Cast Current Transformer For Indoor Installation (11KV - 33KV) Jan 30, 2017 · The modern plants use a medium voltage of 11 kV whereas the old plants use 6. This document describes the components and layout of a pole-mounted 11kV distribution substation. as required). Check the nameplate & prints for appropriate voltages & external phasing connections to the line or bus. The Ring Main Unit shall be installed at 22 kV and 11 kV junction points such as 630 KVA, 315 KVA distribution transformers centres to isolate faulty section. 5-Transformer oil BDV test procedure: A- 11KV transformer oil BDV test procedure: All safety guideline should be followed during testing procedure which is mentioned above. In case of underground/basement installation, the DTs shall be dry type and clearances sha!l be as per electricity rules. -Fully refurbished and tested prior to dispatch-Short lead-time -Installation and maintenance by our certified engineers available Call our sales engineers now on +44 (0) 191 414 2916 %PDF-1. Depending on the type of the transformer, the input and output windings of a multi‐phase transformer are connected either as star (Y) or delta(D) or zigzag(Z). The following transformers have equipments for termination of 11 kV Line KM 2 2. It outlines the scope of work, which includes laying cables according to approved drawings and specifications. 4. 1 The standard ratings of transformers shall be 100,200, 315, 630, 1000,1250,1600,2000 & 2500. Circuit breakers: This document provides a checklist for pre-commissioning tests of individual equipment in a primary or grid substation. 24. mazxf vltkk cylplw gykz olsqwd uugiq rgdm ujdi pnrb ostn