Case Study
Active Harmonic Filter
Client
AF Switchgear
Product
A2 Filter Module
Sector
Manufacturing
How an Active Harmonic Filter Installation Solved Network Instability Problems
Summary
After commissioning a new HV/LV substation, a North Wales manufacturer experienced instability and
tripping. We identified harmonics from VSDs as the root cause and installed Active Harmonic Filters to
stabilise the system.
Client Background
A large manufacturing site in North Wales struggling with electrical system instability following
substation expansion.
Problem
High harmonic distortion from VSDs caused spurious tripping and overheating of electrical systems.
Solution
A power quality survey confirmed the issue, and we installed Active Harmonic Filters to bring the
harmonic levels under control.
Results
-
Network instability eliminated
-
Equipment protection improved
-
Annual maintenance strategy in place
Testimonial
“Power Capacitors took the time to understand what was going wrong and got it sorted faster than we
expected. We wouldn’t hesitate to recommend them.” – Site Engineering Lead
If you have a power quality problem with no apparent solution, get in touch with us today and we will work
with you to solve it!
“We always use Power Capacitors Ltd. Nothing
is ever too much trouble, and the quality is second
to none!”
Operations Manager
AF Switchgear
AF Switchgear