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In HVT (High Voltage Technology), any voltage above 11 kilo-volts is known as in the high profile range. It might either be alternating or dc. Majority of industries are offered using this type of array of voltages in the national grid even though some generates their own high voltage power using generators. Extremely high voltages are generally stepped into some specific lower voltages, to operate their electrical machinery like motors, heaters, HVAC systems, and the like. Of these industries, regular checks have to be conducted by authorized personnel to gauge the health of their equipment. Equipment tests are very crucial in determining the steadiness of an machine in an attempt to avoid equipment breakdown and massive production losses. These tests also help in determining if the newly purchased tools are worth, before installing it. Most manufacturers use high profile testing to evaluate the insulation of these equipment before supplying them to their customers.

Some great benefits of applying hollywood insulation testing are usually looked down upon by so many industries, being a technique of discovering the conditionality with their electrical equipment. This could be greatly attributed to the fact much pressure and emphasis is definitely place on production activities with the cost of proactive maintenance of the device. The best and efficient insulation for an electrical machine is so very important for the correct operation every time. Since insulation of kit degrades as time passes, the respective electrical department for virtually any industry should be regularly conducting regular check-ups for machines within their normal working schedule. Do this to even low and medium voltage systems.

In many instances, a four stage process is followed. The stages are briefly described below:

In-process testing

This is actually the simplest process that may be done even around the readily installed equipment, as long as it is not running. This method involves the utilization of a meggering instrument to test the insulation integrity from the coils prior to it being associated with phases, neutral, and earth. In some instances, a multimeter doubles. Inter-winding and winding-to-body resistances are checked at this stage. Therefore, the dielectric withstanding voltage and insulation resistance with the coil can be established.

Ancillary Equipment Testing

This requires testing for insulation resistance and dielectric withstanding voltage for interconnecting cables, high voltage bushings, busbars, and terminations. This could be conducted in the event the components are interconnected or separated.

Generator Assembly Test

In this instance the generator is visually inspected. Cleaning is performed and the machine’s stability is also assessed. The pulse from the machine is closely monitored by using a special display instrument. The gear is also meggered for insulation resistance and dielectric withstanding voltage test.

One of the things to consider in testing equipment are; voltage and right testing equipment. For the best dependable results testing voltage should be high enough to effectively measure the insulating resistance. However, it should not be way too high to overstress the gear insulation. The appropriate testing equipment which may effectively store results permits them to be saved in a computer for archiving and analysis. This action saves some time and cuts down on chance of error.

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