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Power quality measurements - DI-Teknik
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di-teknik.dk / Power supply / Power quality measurements 13. November 2017
To see te power quality at our customer’s plants, DI-Teknik can perform power quality measurements and offer permanent logging equipment at all voltage levels from 400V to 132kV, thus continuously monitoring te power supply. This logging equipment can measure against different standards such as EN50160, Defu16 and more. Each week, reports are generated in a database at te customer, which can monitor whether events beyond te standardized limits have been taking place.
This device can send a text message via a GSM module if an alarm limit has been exceeded, for example, if te customer has been subjected to a drop of power. Te equipment comes with a user-friendly analysis software that can indicate whether te disturbance is from te supply network or if it is generated in te customer’s own installation.
It is important to follow your voltage quality, as newly installed consumables quickly can distort te power, and in worst cases affect costly uptime.
Harmonic voltages also shortened as THDv, are derived from harmonic currents. Te sinusoidal voltage curve is influenced by harmonic current, then you get a sinusoidal curve that does not have its sinusoidal shape. THD stands for “Total Harmonic Distortion”.
Why pay attention to THD?
Harmonic currents may have some undesirable side effects in te electrical installation. This may be because of excessive power loss, which may shorten te life of motors/transformers, power supplies, etc., or potentially damage te consumables connected to te installation.
DI-Teknik can analyze te customer’s installation with mobile logging equipment and report with a survey of te power of te installation. Thereafter, there may be many different solutions depending on how te power quality appears.
You are very welcome to contact us by telephone +45 5657 0066 and we will connect you with te right employee in our high voltage department for your assistance.
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