rb$y`X%k%TYZeFu$9[ Oe-b%lka&c0X$=-zhuV:T&QTqopLX,bP Required Skills. The Inspection request with all relevant documents to be sent to Main Contractor for review and inspection. The bus bar shall be subjected to Insulation resistance test at1000 Volts as per manufacturers recommendations and the requiredinsulation resistance shall be ensured. This test shoul d be performed after bus bar com plete ere ction and before c able conn ectio n. 3.2. . Safework Method Of Statement. Correct use & Maintenance of tools and equipment. 2 0 obj 4 0 obj Travel to job sites, customer offices and vendors factories expected to be around 75% of total time. This test should only be carried out by competent personnel. 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. Provisioning appropriate PPEs based on the nature of the works. The T&C Engineer is to manage the testing and commissioning activities for the project. 1.2. It includes the setting-to-work of installation, the regulation of the system and the fine-tuning of the system.. Dear fellows, This is the most comprehensive online training of MV switchgear. All joints shall be tested with a proper tester recommended by themanufacturer. Index TermsBusbar protection, busbar testing, digital substation, IEC 61850-9-2LE, process bus, simulation bit and test mode. Move to the next joint and perform the same procedure. Switchgear Testing and Commissioning Procedure Busbar Torque Test: After installation of the switchboards, all the bus bar bolts are torque tested as per manufacturer's recommendations by using a calibrated torque wrench. Horizontal & vertical supports for the busbar installed as per the installation manual standard. <>/ExtGState<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 595.32 842.04] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> Ensure identification is carried out as per specifications. Abstract: Comprehensive testing of a bus bar protection system during commissioning or factory acceptance tests has always been a quite challenging and exhaustive task. As a result, HWk0Gi,aYR4]qCd(cPs:N;URIrAKReEvOOa8:N s.@pF Ensure that the phase sequence are same throughout the length. Click to reveal Are any joint packs installed along the slab. You will be redirected once the validation is complete. Electricalengineering123.com. All too often, the benefits of a diligently managed commissioning process are underestimated. Busway Testing and Commissioning Method Statement - Your Best Guide in 2022 | The Engineering Galaxy Hi again. Important: Ensure equipment is disconnected from any possible source of electrical supply; disconnect I draw out ACB I MCCB feeder; switch off all tap off units, disconnect neutral and earth cables. Lean, Reviews and Lessons Learned) What You Bring Ensure that the tap-off & feeder boxes are easily accessible foroperation. Sorry, you have Javascript Disabled! \kwnzlr2Z^/zaw{Vvh"4D[S5/D m{6}#* D/p.Fp6DGzex0Gp>SAzZLrdXV%@D\'$p:iVjgWKX2Sz]~9;>4;=4\Q}7NtR s3Wcd2ds8[OHg?Zg6cbRQS"b{bR~}~Z_.uK7 Conduct daily toolbox talks before work commencement. a. You can email the site owner to let them know you were blocked. endstream endobj 328 0 obj <>stream A stability test should be done on the busbar relay same as the general differential relay. This test is performed by initiating a specific amperage through the test specimen and measuring the heat rise with thermo-couples. Put the busbar protection out of service during this testthis means the buswires will be short-circuited and trip links will be opened. The support system for the bus bars is complete. 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. The action you just performed triggered the security solution. Bus duct will be tested end to end with the readings taken atLV room. Click to reveal Prior to energizing perform all below checks: Ensure all connections to the busbar I tap offs have been disconnected. 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. New TriRaptor testing device by EuroSMC . 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 Ensure all tap offs are turned off again prior to energizing. Applications will not be shortlisted without this information. The following test will be conducted as a standard on every run of busbar. 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. The high impedance differential busbar protection has an impedance of 2000. Safework Method Of Statement. <>>> Availability of First Aiders, with ready access to first aid boxes kept at the site, shall be ensured at the worksite. Performance & security by Cloudflare. ps lJ{D"xW }d Y!yje%YZIfyN"gC5{OA'/e{UkIRVqW{D)Z& The Contractor shall employ the services of a specialist independent . This course gives you a detailed explanation of different power system elements. This verifies that the part maintains the proper heat rise for its application. Generally, the HiPot test is run at an exaggerated voltage level of 2X the operating voltage plus 1,000 volts to ensure safety and performance even in extreme scenarios. You can email the site owner to let them know you were blocked. Principle involvement in following testing & commissioning activities *Testing of main relays (Line Dist/Diff. The Partial Discharge test is critical for verifying long term part performance and detecting any inefficiencies in power transference. Powered by Elevator Commissioning Checklist Download Free Template Cloudflare Ray ID: 7a119f2aac11206a Please include what you were doing when this page came up and the Cloudflare Ray ID found at the bottom of this page. Please include what you were doing when this page came up and the Cloudflare Ray ID found at the bottom of this page. jumper cables, terminals and various devices by using an infrared scanner. `u;?A'Ne`rH @vB9l(hc2f%_n}vnuotkkX-yw,2l Contact Us, We design solutions to the world's greatest challenges. This website is using a security service to protect itself from online attacks. REB611 is used in high-impedance-based applications within utility substations and industrial power systems. Following the successful closing off the supply breaker, close the circuit breaker(s) supplying the connected loads (via Tap-offs) one by one. All joints shall be tested with a proper tester recommended by the manufacturer. To see this page as it is meant to appear, please enable your Javascript! This check is to verify the integrity of the insulation of the busbar following the installation and site conditions. Ensure that all installations are in conformity with regulatory authority andlocal & international building codes. Repair / replace damaged components, if any. Ensure all joint covers are firmly secured. Read Complete Method. Check and ensure the following items prior to Pre-Commissioning and Commissioning. The action you just performed triggered the security solution. Participate and perform Integration testing and commissioning, Coordination of internal resources and external partners (contractors) and clients for testing. 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. All removable installation covers are fixed back properly. 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 words controlled and coordinated are key here. 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=^) Electrical Fault supervision, analysis and . <> Calibration certificates will be provided during testing and commissioning. <> When reconnecting the system prior to energization ensure correct phase rotation is achieved by testing prior to energizing the supply. Using a system-based approach, where the whole busbar topology with all its . Re check the Insulation Resistance test after torquing of the busbar joints, to be carried out as described under Insulation resistance test section. 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. "- c(HmS;;!}8E'=y2T0"5'A%pjI1P+ hB,F@%FNP0qI0QD)G"Z ~, The article has provided an explanation of what is busbar protection, various types of protection schemes, and how the testing of busbars is done. Are the Tap off box clamps fixed properly as per the Installation Manual? 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. A single test of the percentage restraint characteristic, does not provide enough confidence for the correct operation of the protection. Today we will know step by step how to perform Busway Testing & Commissioning on-Site from A to Z. The protection settings should be at the circuit breakers minimum protection level. Insulation resistance will be carried out by IR tester at DC 1000 Volts to ensure that the system is free from short circuits and grounds. The commissioning process is a quality-focused process for enhancing the delivery of a project. Are there any supports installed on the joint packs? 384 0 obj <>stream 6.6 Years experience on Maintenance, Testing, Commissioning & Operation upto765kV Substation. 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. It is an all-inclusive process consisting: . 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. All covers shall be properly replaced upon completion of torquing of each joint. Ensure that the Bus Bar System installation is completeand mechanical completion is approved & all comments on theinstallation inspection are incorporated. 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. A method statement is approved, including test forms. 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 Ensure that all the precommissioning checks are carried out successfully. Breakers, CTs, VTs, Busbar, Meters etc.) After initial verification by the Commissioning Manager, the PMCM will be invited to witness the works. 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. Isolate the bus way run by disconnecting all connections to transformers, switchboards, meters, and so forth. There are several actions that could trigger this block including submitting a certain word or phrase, a SQL command or malformed data. Storm Power Components. 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. endobj 64.111.109.93 When 52-2 CT fully saturates, its magnetic field impedance is effectively 0.00. 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testing and commissioning of busbar
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