Discover our Clipsal Smart Home packages as seen on The Block 2018

OR

## I'm looking for

• Wholesalers
• Uncheck All Check All
• EXPERTISE
• Expand
• Expand
• Expand
• Uncheck All Check All
• Switchboard Manufacturers
• Uncheck All Check All
OR

The best way to see what Clipsal electric products can do for your home is seeing them in action at a Clipsal Display Centre.

Product stock may vary according to location. If you're after a specific product range, please check with your chosen location before visiting.

10 Results
Change Location

# FAQ

### What is the power factor for ATV61 drives?

Issue:
What is the power factor for ATV61 drives?

Product Line:
Altivar ATV61

Environment:
All

Cause:
N/A

Resolution:
To have a power factor closed to 1 (not the cos) it is necessary to suppress all the current harmonics.
For that, use an active filter from Merlin Gerin (Sinus filter product range)
This device measures the current harmonics and generates the opposite harmonics in the line supply.

Here is another important point:
The customers often get confused between the power factor needed for all of the installation and the power factor of our ATV drive.
For instance, that means they want the speed drive to have a PF of 0.98 if the total installation needs to have a PF of 0.98.
If an other equipment has a lower PF, all the installation will have a lower PF.
So, even our speed drives have a PF=0.98 it doesn't`t mean the installation will have a PF=0.98.
It is the mains supply of all the installation which has to be addressed, regarding the power factor.

On the other hand, you can improve the PF of the ATV by adding a line choke or passive filter from the catalogue as it is often requested.
With the harmonics levels of ATV you can estimate its Power Factor:
PF = cos phi(1)/SQR(1+THDﾲ) where cosphi(1) is from the fundamental current.
So, you can take into account this formula => PF = 1/SQR(1+THDﾲ) because cosphi is closed to 1.

#### Need further assistance?

Our Customer Care department provides total customer service solutions for our residential, industrial and commercial applications.

• CLIPSAL CUSTOMER SERVICE AND SUPPORT (13SEAU) 137328 Mon to Fri, 7:30AM to 7:00PM AEST