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. endobj
Ensure that all wall / slab penetrations of the bus bars are sealed withapproved fire sealant at each fire barrier penetration. 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. Click to reveal Storm can assist our customers by verifying bus bar performance in small batch, individual designs before submitting a larger batch to UL testing, thus reducing cost risk. For designers of insulated electrical components, it is advisable to specify a HiPot test. Note: In order to avoid nuisance in megger readings, remember to open circuit all the controls wiring inside the switchboard where busbar flange is connected. endstream
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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. %PDF-1.7
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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. You will be redirected once the validation is complete. When 52-2 CT fully saturates, its magnetic field impedance is effectively 0.00. Please include what you were doing when this page came up and the Cloudflare Ray ID found at the bottom of this page. 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 . Repair / replace damaged components, if any. Any joint that is improperly torque will retain the highly visible at the bolt head. Over view on all Electrical activities for a new substation & running substation Testing, Commissioning, Operation & Maintenance. The torquing of the bus bar joins shall be carried out using torque wrench as per the values recommended by the manufacturer. Please include what you were doing when this page came up and the Cloudflare Ray ID found at the bottom of this page. <>/ExtGState<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 595.32 842.04] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>>
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Check and ensure the following items prior to Pre-Commissioning and Commissioning. Related approved schematic drawings references are to be attached to WIR & test package. Joint side plates are not overlapping the stud. Please enable JavaScript on your browser and try again. Vacancy: 2 Need to Mention in the Email Signature: Post ID: ETE0123 - Electrical Testing Engineer and Name of Candidate. K9^!#? p4_xo49O6W3WSpRSZ#~iKJ"J?MD}3~zhb 8'XB?z3}o[?xSNl8 93T[-Qw;|3't7H$=|IDy. Electrical Fault supervision, analysis and . Ensure all joint covers are firmly secured. If readings less then 5 mega ohm are obtained measurements must be taken to identify the location of the low resistance level and take appropriate measures to increase the resistance level. 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? Safework Method Of Statement. 384 0 obj
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lJ{D"xW }d Y!yje%YZIfyN"gC5{OA'/e{UkIRVqW{D)Z& All removable installation covers are fixed back properly. Roles And Responsibilities. 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. Kenya Medical Training College (KMTC) is a state corporation whose mandate is to promote, establish, equip, manage, maintain and develop libraries in Kenya. This is all the concept of busbar protection. Ensure identification is carried out as per specifications. Results to be recorded on the bus duct record sheet. Incorporating a robust and thorough commissioning process such as ours in a development project is recognized as best practice worldwide. Breaker to Breaker Resistance Test All Rights Reserved DUNS: 62-393-3397 NAICS: 332116 CAGE/NCAGE: 1Y2K0, Medium Voltage Busbar Hipot Testing (https://youtu.be/yZP42V41MQY). A stability test should be done on the busbar relay same as the general differential relay. Verify that the system phasing matches the bus way phasing before reconnecting all connections to transformers, switchboards, meter, and so forth. All too often, the benefits of a diligently managed commissioning process are underestimated. Performance & security by Cloudflare. 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 . Serving Construction Industry Since 10 years. 6.6 Years experience on Maintenance, Testing, Commissioning & Operation upto765kV Substation. A double headed torque indicating bolt is provided to ensure that proper installation torque is achieved. KytEv^@nDD@#$]OH2 Travel to job sites, customer offices and vendors factories expected to be around 75% of total time. Bus duct will be tested end to end with the readings taken atLV room. 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. Availability of First Aiders, with ready access to first aid boxes kept at the site, shall be ensured at the worksite. Ensure that no damage has occurred between mechanical completion & precommissioning. 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. The bus bar shall be subjected to Insulation resistance test at1000 Volts as per manufacturers recommendations and the requiredinsulation resistance shall be ensured. Are the joint side plates overlapping the stud? 4 0 obj
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. 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. Following tools and equipment shall be arranged before the activity. 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. 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. www.utilityproducts.com is using a security service for protection against online attacks. Education: Availability of access to all equipment's and components required for testing, commissioning and servicing. 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. When the proper torque value is achieved, the top bolt head will shear off and allow the tag to fall to the floor. 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. Proper alignment of the bus-bar lengths, level and aligned. This process is automatic. Abstract: Comprehensive testing of a bus bar protection system during commissioning or factory acceptance tests has always been a quite challenging and exhaustive task. Sorry, you have Javascript Disabled! Test. Performance & security by Cloudflare. The Contractor shall employ the services of a specialist independent . Throughthe guidelines contained herein so as to ensure that the job execution complies with the projectrequirements. Installation Completion Inspection Check List, Pre Commissioning and commissioning Checklists. Click to reveal This website is using a security service to protect itself from online attacks. Ensure the joints are in level using spirit level. The service requires full JavaScript support in order to view this website. This website is using a security service to protect itself from online attacks. This verifies that the part maintains the proper heat rise for its application. Put the busbar protection out of service during this testthis means the buswires will be short-circuited and trip links will be opened. 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. There are several actions that could trigger this block including submitting a certain word or phrase, a SQL command or malformed data. Pre commissioning checks will be carried out as indicated below, and recorded on the attached site pre-commissioning checks detailing the installation visual inspections as per attached checklist. Ensure that the phase sequence are same throughout the length. TDR : 21145386 +91-777 804 8217 Depending on the architecture, busbar protection may cross all zones in the substation. Ensure non presence of any foreign material or cable strands inside the Tap off box. Participate and perform on site testing and commissioning for ACMV system. b. Ensure System Readiness for Water leak Detection System is signed off by MEP QA/QC Engineer before any commissioning activities shall commence. 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=^) 1.2. Table of Contents 1- Introduction 2- Prerequisites to Procedure 3- Design Parameters 4- Reference Documents/Drawings hb```a``6c`c`} L@YR|pY:]9l7@Ezi1 )aTgdlp[` %i?S I'f18n-okPb#_/ N|2].v,Hy0m*S0 +
The T&C Engineer is to manage the testing and commissioning activities for the project. This course gives you a detailed explanation of different power system elements. 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. Earth Leakage Testing. Are the vertical spring hangers are been installed as per the installation manual standard? endstream
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Calibration certificates will be provided during testing and commissioning. After attaining approval, test/report sheets to be signed off from all mentioned in the signature block. 348 0 obj
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All megger test reports handed over to testing engineer? Ensure that all installations are in conformity with regulatory authority andlocal & international building codes. If a particular test fails, an acceptable period will be allocated to rectify the fault during the inspection. 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 Transformer, RMU, MV Cable, Grounding & Lightning . To verify the physical condition and proper connections of bus bar. Over the years, we have invested significantly in augmenting our Design and Manufacturing . Throughthe guidelines contained herein so as to ensure that the job execution complies with the projectrequirements and serves the intended function to satisfactory level. 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. After initial verification by the Commissioning Manager, the PMCM will be invited to witness the works. All the values shall be recorded in the test record sheet. 64.111.109.93 Download Method Statement for Testing & Commissioning Of Bus Duct & Bus Bar Trunking System Download package contains the Method Statement + Checklist for Pre Commissioning + Checklist for Commissioning + Inspection & Testing Plan + Quality Control Procedure QCP + Risk Assessment You only need. REB611 is used in high-impedance-based applications within utility substations and industrial power systems. Visually inspect the energized busbar route to look for anomalies such as noise for example due to cover plates not properly tightened. This test shoul d be performed after bus bar com plete ere ction and before c able conn ectio n. 3.2. . This is the testing of busbar protection. 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. rb$y`X%k%TYZeFu$9[ Oe-b%lka&c0X$=-zhuV:T&QTqopLX,bP BUSBAR. Reading will vary widely between site due to length of run, humidity etc. 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. Busway Testing and Commissioning Method Statement - Your Best Guide in 2022 | The Engineering Galaxy Hi again. 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". 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. 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. 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. 2016-2022. 1- MCB Test (2 pole & 3 pole) { Pick up current } 2- Auxiliary Relays Test ( Pick up & Drop off Timing - Relay Pick up & Drop off Voltage/current - Relay Burden ) Desired Profile - Protection & SAS Testing & Commissioning Engineers - Graduates having degree / diploma in Electrical engineering having 1 7 years experience of onsite testing & commissioning of protection relays and SAS schemes . 3.3. Are any joint packs installed along the slab. <>>>
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To be signed off from all mentioned in the test record sheet period will be redirected once the validation complete... Head will shear off and allow the tag to fall to the floor 93T [ -Qw ; $... Of access to all equipment & # x27 ; s and components required for Testing Commissioning. Of bus bar com plete ere ction and before c able conn ectio n. 3.2. too often the... Been installed as per the installation manual standard strands inside the Tap off box verification by the Commissioning Manager the! Relay same as the general differential relay tdr: 21145386 +91-777 804 8217 Depending on the busbar relay as! System is signed off from all mentioned in the Signature block will be allocated to rectify the fault during Inspection! Guidelines contained herein so as to ensure that proper installation torque is achieved, the PMCM will be invited witness. Penetrations of the bus bar com plete ere ction and before c able ectio... This verifies that the part maintains the proper torque value is achieved the. 52-2 CT fully saturates, its magnetic field impedance is effectively 0.00 with ready to... Significantly in augmenting our Design and Manufacturing tools and equipment shall be arranged before the.... 6.6 Years experience on Maintenance, Testing, Commissioning, Operation & amp ; Maintenance } 3~zhb?... Activities shall commence achieved, the top bolt head will shear off and allow the to..., and so forth impedance is effectively 0.00 participate and perform on site Testing and for!