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4. In HVT (High profile Technology), any voltage above 11 kilo-volts is regarded as within the hollywood range. It may either be alternating or dc. Most industries are offered with this particular array of voltages in the national grid while some generates their unique high profile power using generators. Elevated voltages are often stepped right down to some specific lower voltages, to operate their electrical machinery for example motors, heaters, HVAC systems, and the like. For these industries, regular checks must be conducted by authorized personnel to gauge the healthiness of their equipment. Equipment testing is very essential in determining the soundness of an machine so as to avoid equipment breakdown and massive production losses. These tests also aid in determining if the newly purchased devices are worth, before installing it. Most manufacturers use hollywood testing to test the insulation with their equipment before supplying them for their customers.
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10. The main advantages of applying hollywood insulation testing are often looked down upon by so many industries, as being a technique of finding out the conditionality with their electrical equipment. This could be greatly due to the truth that much pressure and emphasis is usually wear production activities with the expense of proactive repair off the gear. A dependable and effective insulation to have an electrical machine is most important for the correct operation whenever. Since insulation of it technology degrades after a while, the respective electrical department for any industry have to be regularly conducting regular check-ups for machines within their normal working schedule. Do that to even low and medium voltage systems.
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12. In many instances, a four stage process is followed. The stages are briefly described below:
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14. In-process testing
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16. This can be the simplest process which is often done even around the readily installed equipment, provided that it's not at all running. This method necessitates the usage of a meggering instrument to evaluate the insulation integrity of the coils before it is linked to phases, neutral, and earth. Occasionally, a multimeter can also be used. Inter-winding and winding-to-body resistances are checked at this stage. Therefore, the dielectric withstanding voltage and insulation resistance from the coil can be determined.
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18. Ancillary Equipment Testing
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20. This calls for testing for insulation resistance and dielectric withstanding voltage for interconnecting cables, high profile bushings, busbars, and terminations. This is often conducted once the components are interconnected or separated.
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22. Generator Assembly Test
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24. In this instance the generator is visually inspected. Cleaning is done along with the machine's stability is also assessed. The pulse with the machine is observed at close range using a special display instrument. The equipment is also meggered for insulation resistance and dielectric withstanding voltage test.
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26. One of the things to consider in testing equipment are; voltage and right testing equipment. For the most dependable results testing voltage needs to be enough to effectively appraise the insulating resistance. However, it should not be too much to overstress the device insulation. The appropriate testing equipment which may effectively store results permits them to be saved in a pc for archiving and analysis. This process saves serious amounts of cuts down on chance of error.
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