BANGLADESH POWER DEVELOPMENT BOARD TENDER ... - BPDB

circuit of unit motor control centre shall be made with totalising meters.Generator power output shall be held as constant as possible during theperformance test.The gas turbine generator shall run at 25%, 50%, 75% and 100% of base ratingand peak load prior to placing the unit into commercial operation and to provethat sudden load rejections from loads up to maximum capability can beaccommodated by the turbine without the speed rise being sufficient to cause theover-speed trip to initiate.The output and heat rate tests will be carried out on each unit in the followingmanner:i) 1/2 hour at 1/4 loadii) 1/2 hour at 1/2 loadiii) 1 hour at 3/4 loadiv) 1 hour at 4/4 loadv) 1 hour at peak loadFull load at the generator terminal for the purpose of the test will be calculatedfrom the guaranteed output according to the site ambient installation conditions.Correction factors for variations of test conditions from the specified designconditions shall be stated in the Tender.(5) Test ReportsThe Contractor shall submit to the Board within three(3) months after the signingof the Contract, the detailed procedure for the conductance of the performanceand acceptance tests for approval.The procedure shall include the following for such test or group of tests:-a. The time duration of each test at each load.b. The number of test runs at each load.c. The sequence of the tests to be conducted.d. A list of instruments that will be used for each test.The list shall designate which instruments are:i) Special test instrumentsii) Certifiediii) To be calibrated before and after each testiv) Check instrumentsv) Station supply instruments.Schematic diagrams showing all test points and cross references to the instrumentlist shall also be included.e. All formulas, calculations, conversion factors, curves, correction curves,etc., to be used in the conductance of the tests and the calculations of the testresults.Ghorasal 200 MW to 300 MW Gas Turbine Peaking Power Plant Project (Vol-2 of 3)148