“K(i) Rated” Medical-Grade Power Protection
What’s A “K(i)” Rating, And Why Is It Important To My Modality?
A “K(i)” rating refers to the intermittent kVA or “momentary power demand” rating. During the time that a medical imaging or treatment modality (e.g. MRI, CT, linear accelerator, gamma knife, etc) performs the actual scan or procedure, that piece of equipment has a high surge current — meaning that the current will rise to (or be higher than!) 3 to 5 times that of the steady state current.
This momentary power demand typically lasts for < 5 seconds, however these seconds are “critical” in that the power source must deliver the required current while staying within the line voltage tolerance of the imaging / treatment equipment.
So Oversizing Should Solve Everything … Right?
No … it won’t! We’ve seen how some medical OEM’s and power quality manufacturers take a “better safe than sorry” approach, and deliberately oversize the distribution transformer, power conditioner, or voltage regulator, treating the momentary power demand as if it was a continuous event.
However, keep in mind that most of the time, the imaging / treatment equipment is in the standby mode and requires only a fraction of its momentary power demand. Therefore, the “oversizing” approach simply leads to an expensive and inefficient installation … yielding increased operating costs, and often requiring a larger space than necessary to accommodate the oversized transformer or power conditioner.
A Better Approach: Controlled Power Company’s Solution!
Our solution: When sizing our product, we consider both the maximum intermittent and the maximum steady state kVA ratings of the modality.
- We size our SureImage product’s K(i) rating to be greater than the modality’s maximum intermittent kVA rating.
- Likewise, we size our SureImage product’s continuous kVA rating to be greater than the modality’s maximum steady state kVA.
Our SureImage medical-grade, K(i) rated power conditioners and voltage regulators are designed to supply both the intermittent and continuous kVA, while continuing to provide tightly-regulated voltage.
So What Does This Mean For You?
Bottom line: Our SureImage products are properly-sized for the continuous load rating; and provide regulated and conditioned power, high efficiency, and lower operating costs.
In addition, all of our SureImage models are surge-rated to optimize performance; and provide your medical modality with exactly the power that it needs!
Contact us for more details! Let us know how we can help you!