Testing is the process of checking the condition of a hardware without supply of energy while Commisioning is the final testing of the hardware with supply in the field.
ex. a transformer after its fabrication is tested in the manufacturing company (TESTING) while when the transformer is installed in its designated field, the manufacturer will do another testing but this time with supply (COMMISIONING).
Testing and commissioning are to be carried out on installations to assure that they are reliable and meet the design requirements. The witnessing of tests on and off-site shall be determined by Design specifications, Mechanical and Electrical.
Pre-commissioning is the testing of non-energized systems. Commissioning is the testing of energized systems.
Power Advantage is the best service providers when it comes to Relay Testing & Commissioning.
commissioning mean adjustment, testing, and tuning.
Systems Commissioning is the process of testing final versions of software, hardware and configuration in their final locations. Once completed, it is "Live" (Available for use) and will not require further testing.
You may find several GIS testing & commissioning companies in UAE, but in my opinion Power Advantage is reliable & cost-effective of all.
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Depending on the equipment required for the substation,some of the tests are as follows: meggering,hi-pot testing,continuity checks,c.t. testing,relay testing,ngr testing, capacitance bridge test's on transformers.
designing point of installation & testing commissioning
Testing and commissioning are to be carried out on installations to assure that they are reliable and meet the design requirements. The witnessing of tests on and off-site shall be determined by Design specifications, Mechanical and Electrical
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There are a great many. but to keep it simple: (a) pressure-testing the cables/switchgear/transformers/etc. (i.e. testing the insulation using high-voltage test sets); (b) testing the operation of the switchgear; (c) testing the operation of the protective relays. ...but lots more.