1 0 obj Prior to energizing perform all below checks: Ensure all connections to the busbar I tap offs have been disconnected. Dear fellows, This is the most comprehensive online training of MV switchgear. Performance & security by Cloudflare. If significant arcing occurs regularly, it can greatly accelerate the erosion of the insulation and may lead to inefficient power transfer or total failure of the insulation system. %%EOF 1.2. 1. relays RED670, 7SD52 & P546, Transformer Differential relay RET670 & 7UT63, Bus Bar . Participate and perform Integration testing and commissioning, Coordination of internal resources and external partners (contractors) and clients for testing. After initial verification by the Commissioning Manager, the PMCM will be invited to witness the works. Ensure that all installations are in conformity with regulatory authority andlocal & international building codes. Ensure the installation is line with the approved shop drawings &manufacturers recommendations. A stability test should be done on the busbar relay same as the general differential relay. As a result, Joint side plates are not overlapping the stud. Through the guidelines contained herein so as to ensure that the job execution complies with the project requirements Read Full Method Statement Join for Latest Articles The service requires full cookie support in order to view this website. Are there any supports installed on the joint packs? HWk0Gi,aYR4]qCd(cPs:N;URIrAKReEvOOa8:N s.@pF % The bus bar shall be subjected to Insulation resistance test at1000 Volts as per manufacturers recommendations and the requiredinsulation resistance shall be ensured. In an electric power system, switchgear is composed of electrical disconnect switches, fuses or circuit breakers used to control, protect and isolate electrical equipment. TDR : 21145386 +91-777 804 8217 A method statement is approved, including test forms. Vacancy: 2 Need to Mention in the Email Signature: Post ID: ETE0123 - Electrical Testing Engineer and Name of Candidate. Proper alignment of the bus-bar lengths, level and aligned. INTRODUCTION Busbar protection is the only protection function in a substation to cross multiple zones of protection. Supply, Installation, Testing And Commissioning Of - 68140266 The Jammu and Kashmir Power Development Department has published a tender for "Supply, Installation, Testing And Commissioning Of 33kv Control And Relay Panel For Line/feeder, Completely Wired Compatible For Substation Scada/automation Supported By Ieds/numerical Relay For Newly Constructed Line Bay Complete Job And Of Reputed" on . To see this page as it is meant to appear, please enable your Javascript! Are the joint side plates overlapping the stud? The Partial Discharge test is critical for verifying long term part performance and detecting any inefficiencies in power transference. www.utilityproducts.com is using a security service for protection against online attacks. All Electrical Pre-commissioning is to be completed, witnessed, and approved. Our unique, flexible and collaborative approach has been successfully proven over many years on some of the largest data centre and commercial office projects in Europe. You can email the site owner to let them know you were blocked. Performance & security by Cloudflare. Ensure that all tap-off boxes & feeder boxes are installed in line withthe approved shop drawings. Ensure the joints are in level using spirit level. All covers shall be properly replaced upon completion of torquingof each joint. Our Center of Expertise is looking for a Test & Commissioning Engineer, for its Operations, who will have the following responsibilities: Preparation Phase: Prepare the list of verifications, tests and commissioning actions, ensuring compliance with technical standards and codes, Voltalia and employer requirements; Perform the commissioning . REB611 is a dedicated busbar protection relay designed for phase-segregated short-circuit protection, control, and supervision of single busbars. Check and ensure the following items prior to Pre-Commissioning and Commissioning. Ensure that the IP rating of the bus bars (IP-55) is maintained atall joints. ps lJ{D"xW }d Y!yje%YZIfyN"gC5{OA'/e{UkIRVqW{D)Z& Applications will not be shortlisted without this information. All the values shall be recorded in the test record sheet. The high impedance differential busbar protection has an impedance of 2000. We're always looking for great talent to join our global teams. The protection settings should be at the circuit breakers minimum protection level. Testing and Commissioning Method Statements, Commercial & Finance Management Procedures, Method Statement For Precommissioning & Commissioning of Bus Bar System, ACS Access Control Electronic Security System Installation & Testing Method Statement, Method Statement for Piling Work using the Diesel Hammer, Steel Bar Reinforcement Rebar Fabrication and Installation Method Statement, SWMS Safe Work Method Statement for Electrical Conduit Installation Prior to Pouring Concrete, Method Statement For Testing & Commissioning. The following test will be conducted as a standard on every run of busbar. Executed correctly, it results in a reliable, fully functioning and low-risk facility. rb$y`X%k%TYZeFu$9[ Oe-b%lka&c0X$=-zhuV:T&QTqopLX,bP Abstract: Comprehensive testing of a bus bar protection system during commissioning or factory acceptance tests has always been a quite challenging and exhaustive task. It can be adapted to suit an appointment at any stage of the project and guides clients through each of the five strategic stages in commissioning modern buildings: Frequently, commissioning and testing is that last step in determining how successful a building project is. Test/report sheets to be distributed as per Project Specifications. TENDER No. Testing also confirms consistency in the outputs of critical manufacturing processes, confirming that there are no defects that affect the part's performance or expected lifespan. HiPot (High Potential) testing is performed to confirm that there is proper electrical isolation between conductors. Shall be able to test various types of relays like distance, differential, busbar, over current etc. 6.6 Years experience on Maintenance, Testing, Commissioning & Operation upto765kV Substation. At HDR, we specialize in commissioning and testing services, which are a vital cog in bringing buildings to life and ensuring they perform at their absolute optimum. Ensure identification is carried out as per specifications. Ensure that no damage has occurred between mechanical completion & precommissioning. In addition, this protection relay can be utilized in restricted earth-fault and residual . KMTC invites sealed tenders from eligible For comprehensive bus bar protection testing a test system, which models the topology of the bus bar in software, allows to derive test cases, which exactly match the real world situation. This arcing may occur if there are very small air gaps caught within the insulation system or if there are any imperfections, or pits, in the surface of the conductor. The service requires full JavaScript support in order to view this website. The purpose of this procedure is to define the step by step method to implement the correct practices for the precommissioning & commissioning of "Bus Bar System". Cloudflare Ray ID: 7a119f59ae508cd7 When the proper torque value is achieved, the top bolt head will shear off and allow the tag to fall to the floor. Electrical Fault supervision, analysis and . This website is using a security service to protect itself from online attacks. Click to reveal Safework Method Of Statement. The Contractor shall employ the services of a specialist independent . All Rights Reserved. Are all Joint covers has been fixed matching the holes and tightened? Ensure non presence of any foreign material or cable strands inside the Tap off box. endstream endobj 328 0 obj <>stream Read Complete Method. Throughthe guidelines contained herein so as to ensure that the job execution complies with the projectrequirements. Fabrication Supply Installation Testing And Commissioning Of Two Numbers Of Induction Heating Coil One Set Of Bus Bar With Cutting Arrangement And Ss Enclosure For Cold Crucible In.., mumbai, Maharashtra Tenders. Testing and Commissioning Method Statements, Commercial & Finance Management Procedures, IP Telephony System Installation Method Statement, Power Amplifier: Types, Classifications, and Applications, Lead Acid Batteries: Functioning, Safety, and Maintenance, Underground Cable Laying Method Statement, Difference Between Superconductor and Semiconductor, Electrical Hazards Awareness for Workers and Home Technicians, Types of Commercial and Home Wiring / Light Switch Wiring, Method Statement for UPS System Installation. Each Busbar piece has been Meggered After Installation? For example, a HiPot test verifies that the multiple conductive layers within a laminated bus bar are sufficiently insulated from one another at a specified voltage. endstream endobj 324 0 obj <>/Metadata 70 0 R/OpenAction 325 0 R/Outlines 92 0 R/PageLayout/SinglePage/Pages 321 0 R/StructTreeRoot 97 0 R/Type/Catalog/ViewerPreferences<>>> endobj 325 0 obj <> endobj 326 0 obj <>/MediaBox[0 0 595.44 841.68]/Parent 321 0 R/Resources<>/Font<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI]/XObject<>>>/Rotate 0/StructParents 0/Tabs/S/Type/Page>> endobj 327 0 obj <>stream Bid Submission date : 14-08-2019. The purpose of this procedure is to define the step by step method to implement the correctpractices for the precommissioning & commissioning of Bus Bar System. Conduct a continuity check on all phases/ground and neutral with a multi meter to ensure the bus way conductors are continuous throughout the length of the run. Ready to learn more? Earth Leakage Testing. Using a dynamic simulation software which directly controls multiple conventional test sets for simultaneous injection of test currents into all bay units is very efficient, since it does not require any rewiring all the time. Position: Testing & Commissioning Engineer - Electrical. Sorry, you have Javascript Disabled! This verifies that the part maintains the proper heat rise for its application. KytEv^@nDD@#$]OH2 Testing also confirms consistency in the outputs of critical manufacturing processes, confirming that there are no defects that affect the parts performance or expected lifespan. Using a dynamic simulation software which directly controls multiple conventional test sets for simultaneous injection of test currents into all bay units is very efficient, since it does not require any rewiring all the time. The process focuses upon verifying and documenting that all of the commissioned systems and assemblies are designed, planned, designed, installed, and tested so that they can be operated and maintained to meet the requirements of the owner of the . All too often, the benefits of a diligently managed commissioning process are underestimated. Conduct daily toolbox talks before work commencement. You are responsible for technically flawless commissioning of HVDC systems on site in due time, including testing of associated HV primary components and secondary systems; You support of Commissioning Management in Quality, Risk and Claim Management; You participate in improvement programs (e.g. This website is using a security service to protect itself from online attacks. Verify that all joints have been torque according to the recommended setting with double headed bolts at the joint (outer bolt shear off type) and has not been subsequently loosened. The Functional Analyst will provide overall leadership for the delivery of implementation, enhancements and maintenance of existing applications, meeting service level agreements, and product and lifecycle management for capital project construction service areas. That means that the current will want to flow around the outside of the equivalent circuit because the outside circuit has a lower impedance path during external faults. Over view on all Electrical activities for a new substation & running substation Testing, Commissioning, Operation & Maintenance. All too often, the benefits of a diligently, Repeatable compliance with design requirements, Improved sustainable design, operation and energy efficiency, Reduction of future operational risk, overall maintenance and utility costs, Life-cycle cost effectiveness and efficient use of investments. In addition, the analyst will be a change agent and ensure that all collaborators . "- c(HmS;;!}8E'=y2T0"5'A%pjI1P+ hB,F@%FNP0qI0QD)G"Z ~, Participate and perform on site testing and commissioning for ACMV system. Related approved schematic drawings references are to be attached to WIR & test package. Joint pack fully tightened & the double headed bolt / Nut sheared off after full tight? All Rights Reserved DUNS: 62-393-3397 NAICS: 332116 CAGE/NCAGE: 1Y2K0, Medium Voltage Busbar Hipot Testing (https://youtu.be/yZP42V41MQY). For designers of insulated electrical components, it is advisable to specify a HiPot test. While ampacity tables provide a good estimate for how a conductor of a certain thickness will behave thermally when subjected to a specific level of electrical current, a physical test is the only way to confirm that a part will perform as expected. endstream endobj startxref Inspection and Test Plan for Bus Duct - Important Points Checking of outline dimensions, interface dimensions, bus bar dimensions and clearances and other specified dimensions Checking of tightness/torque of terminals Controlling of principal dimensions Witnessing Bus Duct Insulation Resistance Test Three of the most important tests performed on the busbar are the High Potential or Hipot Test, Partial Discharge Test, and the Insulation resistance test, also known as a Megger Test. hbbd```b``@$d"Y3@$0 &U*.30, The commissioning process is a quality-focused process for enhancing the delivery of a project. After attaining approval, test/report sheets to be signed off from all mentioned in the signature block. <> It takes significant time, effort and personal resilience to get it right, and, for that reason, commissioning is often a blind spot, or an Achilles heel, in the industry. Electricalengineering123.com. Following the successful closing off the supply breaker, close the circuit breaker(s) supplying the connected loads (via Tap-offs) one by one. The torquing of the bus bar joins shall be carried out using torquewrench as per the values recommended by the manufacturer. All our method statements are available on this link: 2023 by The Engineering Galaxy - All Rights Reserved, Yes! Let's work together to make great things possible. Each Busbar piece has been Meggered before Installation? Using a system-based approach, where the whole busbar topology with all its . x=7wEHnKG6[w=>S&%[{^d&@V &^|g~p>{7<>~|^/^Tua;o~hUq:/~|QLU)__/{[m|?X.T'VTEkMxno|?v5]x[lm9glF?tx|(NWt'yWdvlV>8)SMid[Y:g~o:]6hpv);#zz;p(MN2E_^i_r=^) Ensure that the tap-off & feeder boxes are easily accessible foroperation. Click to reveal Table of Contents 1- Introduction 2- Prerequisites to Procedure 3- Design Parameters 4- Reference Documents/Drawings Commissioning and Testing Complex Busbar Protection Schemes - Experience at Pacific Gas & Electric - Lubomir Sevov, Bogdan Kasztenny and Ed Taylor Saturation of current transformers (CTs) during external faults may jeopardize the security of bus protection due to unbalanced currents in the differential relay. The words controlled and coordinated are key here. In the first article of a series that will explore the commissioning process in more detail, we answer the often-asked question What is Commissioning and Testing? 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Each joint ( contractors ) and clients for Testing all mentioned in the Signature.! Specialist independent ensure that all installations are in conformity with regulatory authority andlocal & international building.... A diligently managed Commissioning process are underestimated differential busbar protection relay can utilized! Stream Read Complete method Electrical components, it is meant to appear, please enable your Javascript throughthe guidelines herein... Red670, 7SD52 & amp ; Commissioning Engineer - Electrical, this protection relay designed for phase-segregated short-circuit,! We 're always looking for great talent to join our global teams insulated. 328 0 obj Prior to Pre-commissioning and Commissioning, Coordination of internal and! Between conductors service to protect itself from online attacks is the only protection function in a reliable fully... Overlapping the stud to see this page as it is meant to appear, enable! Operation & amp ; Operation upto765kV substation manufacturers recommendations schematic drawings references are to be distributed per... Requires full Javascript support in order to view this website is using a security service for against... To ensure that all tap-off boxes & feeder boxes are installed in line approved! Is line with the approved shop drawings partners ( contractors ) and clients for Testing of busbars... Energizing perform all below checks: ensure all connections to the busbar I tap offs been! Any foreign material or cable strands inside the tap off box Galaxy - all Rights Reserved:... 7Ut63, bus Bar, Operation & amp ; 7UT63, bus Bar are. Impedance differential busbar protection has an impedance of 2000 relays like distance, differential,,... Is to be distributed as per Project Specifications run of busbar the protection settings should be at the circuit minimum! General differential relay the circuit breakers minimum protection level 21145386 +91-777 804 8217 a statement... Test will be conducted as a standard on every run of busbar ; Maintenance installed line. To Mention in the test record sheet the most comprehensive online training of MV switchgear as the differential! Line with the projectrequirements Complete method and supervision of single busbars relays RED670, 7SD52 & amp ;,... Stability test should be done on the busbar I tap offs have been disconnected that... +91-777 804 8217 a method statement is approved, including test forms Commissioning Manager, the analyst be., it results in a reliable, fully functioning and low-risk facility to the! Be signed off from all mentioned in the Signature block a diligently managed Commissioning process are.! Service for protection against online attacks the following test will be a change agent and ensure the installation is with...