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 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. 8k[tee.gU}'5nhwV,8G?'Jh4c~fuC[o}|[^)O9e8{ZvSko Performance & security by Cloudflare. Check and ensure the following items prior to Pre-Commissioning and Commissioning. Education: KMTC/16/2022-2023: SUPPLY, DELIVERY, INSTALLATION, TESTING AND COMMISSIONING OF E- LIBRARY AND DIGITAL REPOSITORY SYTEMS. %PDF-1.7 % Abstract: Comprehensive testing of a bus bar protection system during commissioning or factory acceptance tests has always been a quite challenging and exhaustive task. 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". In addition, this protection relay can be utilized in restricted earth-fault and residual . 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 . The torquing of the bus bar joins shall be carried out using torquewrench as per the values recommended by the manufacturer. The high impedance differential busbar protection has an impedance of 2000. 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. Sorry, you have Javascript Disabled! 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? Performance & security by Cloudflare. |cj/M-(CwK@ZGehrZ DyhN-$ 4 0 obj 323 0 obj <> endobj This is the testing of busbar protection. %PDF-1.5 Put the busbar protection out of service during this testthis means the buswires will be short-circuited and trip links will be opened. Busway Testing and Commissioning Method Statement - Your Best Guide in 2022 | The Engineering Galaxy Hi again. A method statement is approved, including test forms. There are several actions that could trigger this block including submitting a certain word or phrase, a SQL command or malformed data. Following tools and equipment shall be arranged before the activity. HWk0Gi,aYR4]qCd(cPs:N;URIrAKReEvOOa8:N s.@pF Ensure that all installations are in conformity with regulatory authority andlocal & international building codes. The commissioning process is a quality-focused process for enhancing the delivery of a project. Cloudflare Ray ID: 7a119f2aac11206a % All Rights Reserved. |LEfz8CeX?3]>t"Kzfz:KzZ!99CiP^d^|y}YNoWAuSgU6)$'~Q1%yP;$W@z8z(Ugf NPKe#f DsLQdDkd,J2~GamG5jbmn.8&#bd'Jo`,b"L1rIeP(9m^[}s To see this page as it is meant to appear, please enable your Javascript! 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. Here you will learn all thing about MV Switchgears. The commissioning process is a quality-focused process for enhancing the delivery of a project. Installation Completion Inspection Check List, Pre Commissioning and commissioning Checklists. Applications will not be shortlisted without this information. Serving Construction Industry Since 10 years. All removable installation covers are fixed back properly. Related approved Material Submittal references are to be attached to WIR & test package. jumper cables, terminals and various devices by using an infrared scanner. hb```a``6c`c`} L@YR|pY:]9l7@Ezi1 )aTgdlp[` %i?S I'f18n-okPb#_/ N|2].v,Hy0m*S0 + Check all joints for tightness as per manufactures torquing recommendation: Provide scaffolding or ladder for easy access on joints to be tightened. Electricalengineering123.com. To see this page as it is meant to appear, please enable your Javascript! Only authorized, competent personnel should energize electrical circuits in line with switching procedure and permit to work forms provided by the site supervisor. Availability of First Aiders, with ready access to first aid boxes kept at the site, shall be ensured at the worksite. After attaining approval, test/report sheets to be signed off from all mentioned in the signature block. For designers of insulated electrical components, it is advisable to specify a HiPot test. This check is to verify the integrity of the insulation of the busbar following the installation and site conditions. 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. <> Ensure that all tap-off boxes & feeder boxes are installed in line withthe approved shop drawings. Ensure all joint covers are firmly secured. Serving Construction Industry Since 10 years. If a particular test fails, an acceptable period will be allocated to rectify the fault during the inspection. endobj Throughthe guidelines contained herein so as to ensure that the job execution complies with the projectrequirements. As a result, The purpose of this method statement is to outline the sequence and method of Testing & Commissioning of Bus Bar Trunking system. Check the bus bars are levelled & aligned properly. Read Complete Method. 6.6 Years experience on Maintenance, Testing, Commissioning & Operation upto765kV Substation. 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. The commissioning procedure of substation busbars for differential protection and other busbar protection schemes involves a large number of input and output circuits that require a verification check in both the primary and secondary circuits. 3.3. Each Busbar piece has been Meggered before Installation? <>>> Inject the current to each module of the busbar protection to check the pickup value, which should be 5% of the normal pickup setting of the relay. Following the successful closing off the supply breaker, close the circuit breaker(s) supplying the connected loads (via Tap-offs) one by one. The service requires full JavaScript support in order to view this website. Prior to energizing perform all below checks: Ensure all connections to the busbar I tap offs have been disconnected. All joints shall be tested with a proper tester recommended by the manufacturer. 2 0 obj This is all the concept of busbar protection. Vacancy: 2 Need to Mention in the Email Signature: Post ID: ETE0123 - Electrical Testing Engineer and Name of Candidate. Powered by Elevator Commissioning Checklist Download Free Template The support system for the bus bars is complete. Reading will vary widely between site due to length of run, humidity etc. 384 0 obj <>stream Fall away instruction tags are furnished on the torque indicating bolt heads to allow for visual inspection from a distance. In addition, the analyst will be a change agent and ensure that all collaborators . 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. All the values shall be recorded in the test record sheet. 3.4. Bus duct will be tested end to end with the readings taken atLV room. The test works by measuring the amount of partial discharge in Coulombs, also called arcing, between the copper or aluminum conductor and the insulation that is applied to the surface of the bus bar. 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. 0 To verify the physical condition and proper connections of bus bar. A single test of the percentage restraint characteristic, does not provide enough confidence for the correct operation of the protection. Customer handling and proper coordination with clients. Ensure all tap offs are turned off again prior to energizing. 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. After completing the procedures mentioned in section 6.0. The action you just performed triggered the security solution. www.utilityproducts.com is using a security service for protection against online attacks. Using a system-based approach, where the whole busbar topology with all its . Safework Method Of Statement. For simple bus bars, the ampacity tables are often enough, but parts with more complex geometries or multiple input/output connections, introduce variables that will skew performance from basic estimations. The protection settings should be at the circuit breakers minimum protection level. This process is automatic. Test/report sheets to be distributed as per Project Specifications. Breaker to Breaker Resistance Test I want to get the Word File of this Method Statement, 12- Safety Aspects & Permit to Work Requirements, Torque Table used with Busway Testing and Commissioning Method Statement, Free access is provided to officially appointed personnel only, A safe environment is provided in electrical rooms. The bus bar shall be subjected to Insulation resistance test at1000 Volts as per manufacturers recommendations and the requiredinsulation resistance shall be ensured. Any joint that is improperly torque will retain the highly visible at the bolt head. Executed correctly, it results in a reliable, fully functioning and low-risk facility. The T&C Engineer is to manage the testing and commissioning activities for the project. Results to be recorded on the bus duct record sheet. Ensure that the tap-off & feeder boxes are easily accessible foroperation. Ensure that the IP rating of the bus bars (IP-55) is maintained atall joints. Verify that the system phasing matches the bus way phasing before reconnecting all connections to transformers, switchboards, meter, and so forth. 348 0 obj <>/Filter/FlateDecode/ID[]/Index[323 62]/Info 322 0 R/Length 118/Prev 964785/Root 324 0 R/Size 385/Type/XRef/W[1 3 1]>>stream 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. This verifies that the part maintains the proper heat rise for its application. Using a new simulation-based test software it is possible to draw the bus bar topology within a graphical editor as shown in Fig. Breakers, CTs, VTs, Busbar, Meters etc.) Initially the bolt can be tightened with a standard spanner, if it has to be removed in future, the re tightening torque, using a torque wrench 50 60 ft pounds. Ensure that all wall / slab penetrations of the bus bars are sealed withapproved fire sealant at each fire barrier penetration. About. The article has provided an explanation of what is busbar protection, various types of protection schemes, and how the testing of busbars is done. INTRODUCTION Busbar protection is the only protection function in a substation to cross multiple zones of protection. rb$y`X%k%TYZeFu$9[ Oe-b%lka&c0X$=-zhuV:T&QTqopLX,bP All too often, the benefits of a diligently managed commissioning process are underestimated. Joint side plates are not overlapping the stud. 162.243.31.236 Are any joint packs installed along the slab. Visually inspect the energized busbar route to look for anomalies such as noise for example due to cover plates not properly tightened. Re check the Insulation Resistance test after torquing of the busbar joints, to be carried out as described under Insulation resistance test section. Click to reveal 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. Sorry, you have Javascript Disabled! It should be proven that the building can withstand the rigors of everyday use. This test is especially important for medium voltage, multilayer laminated bus bars, inverters, and any critical power conductor applications where electrical insulation is of paramount importance. 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. endobj HiPot (High Potential) testing is performed to confirm that there is proper electrical isolation between conductors. busbar topologies with multiple buses, bus couplers, and bays has always been one of the most challenging tasks for commissioning. "- c(HmS;;!}8E'=y2T0"5'A%pjI1P+ hB,F@%FNP0qI0QD)G"Z ~, 3 0 obj 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. Shall be able to test various types of relays like distance, differential, busbar, over current etc. Related approved schematic drawings references are to be attached to WIR & test package. REB611 is a dedicated busbar protection relay designed for phase-segregated short-circuit protection, control, and supervision of single busbars. Testing and Commissioning Method Statements, Commercial & Finance Management Procedures, 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. Your IP: The test runs a specific electrical voltage (AC or DC) through the conductor while a ground is created on the adjacent conductors to verify that there is no electrical path between them. Table of Contents 1- Introduction 2- Prerequisites to Procedure 3- Design Parameters 4- Reference Documents/Drawings
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