The Factory Acceptance Test (FAT) on the delivery of two OXYGEN 500-15-50K units was successfully completed.
This test allowed us to confirm the performance of our technological solution, underlining its effectiveness in solving power quality problems in the customer’s plant, as per the required specifications.
The customer, who conducts tests on electric motors for one of the leading car manufacturers in Germany, was satisfied with the Ortea solution and is considering replicating the installation of this technology in another 4 production units.
Oxygen, thanks to proper sizing of power components and a remarkable response speed (<3 milliseconds) is able to compensate for voltage dips lasting up to one minute.
The required energy is taken directly from the grid.
The supplied voltage sags compensators, with a power of 500kVA, are able to cover voltage dips up to 50% of the nominal value (-50% for 1 minute), furthermore they stabilise the input voltage in the range of ±15%, with an output voltage accuracy of ±0.5%.
Unlike the standard model, Oxygen K includes:
- Input circuit breaker
- Output circuit breaker
- Manual bypass line with interlocked circuit breaker
DEFINITION OF VOLTAGE SAG
Temporary reduction of voltage below a predetermined threshold at a specific point on the electricity grid (as defined by IEC EN 50160).
A voltage sag occurs when the residual voltage drops to values between 90% and 10% of the nominal voltage, with a duration ranging from 10ms to 1 minute.
Most of these sags last less than one second and have a residual voltage above 40% of the nominal value.
ORIGIN OF VOLTAGE SAGS
These dips are commonly caused by faults in the public power grid or in users’ installations, sometimes by transient overloads due to the starting of large motors or the addition of high loads. Causes include floods, explosions, vandalism, wind, fire, inadequate ground resistance, excavators, lightning, fallen trees on lines and equipment failures.
WHY IT IS IMPORTANT TO AVOID VOLTAGE SAGS
The more modern the equipment and the more electronics are required, the more serious the problems caused by voltage dips.
With the increasing number of renewable energy generation plants, voltage dips, fluctuations and frequency deviations are increasing.
Examples of costs due to voltage dips:
- Unproductive personnel costs caused by the discontinuity of the processing cycle.
- Costs for irretrievably lost raw materials.
- Costs for damage and/or malfunctioning of machinery (repair, temporary rental).
- Penalties caused by consequent breach of contract.
- Penalties for environmental damage.
- Increased general insurance costs.
Discover our Oxygen range of sag compensators:
