The PFC Installation Process: How Long Does PFC Installation Take and Will It Disrupt Production?
Some of the biggest questions businesses ask before installing power factor correction is not about the savings but about the installation itself.
Will production have to stop?
How much downtime will there be?
Will the installation affect PLC systems, SCADA systems, or other critical operations?
These are sensible questions. Any interruption to production carries a cost, so businesses want to understand exactly what to expect before moving ahead.
The good news is that installing a power factor correction (PFC) system is usually far less disruptive than most people imagine. In fact, the vast majority of the work is completed while your facility continues operating normally.
The biggest concern is usually downtime
When businesses hear that new electrical equipment needs to be installed, they often picture lengthy shutdowns and major disruption across the site.
In reality, that is rarely the case.
Most of the installation work can be completed without interrupting your electrical supply. The only planned shutdown is normally required for the final electrical connections, and that period is kept as short as possible through careful planning.
The goal is simple: complete the installation with the least possible impact on production.
What does a typical PFC installation involve?
Although every site is different, the installation process follows the same general sequence.
First, the power factor correction panel is moved into its final position. Depending on the size of the equipment, this can be one of the more labour intensive parts of the project.
Once the equipment is in place, the installation team completes all of the supporting electrical work. This includes:
Installing the power, earth, and control cabling
Installing the circuit breaker that protects the PFC system
Preparing all final electrical connections before the planned shutdown
Because none of this work requires the system to be connected to the main electrical supply, it can usually be completed while normal operations continue.
Only once everything has been prepared does the planned shutdown take place.
How long does installation normally take?
The overall installation time depends on the size of the system and the physical layout of the site. Smaller power factor correction systems can often be installed in around four hours. Larger systems typically require between ten and twelve hours to complete.
However, it is important not to confuse installation time with production downtime. Most of those hours are spent carrying out work that does not interrupt the electrical supply to the facility.
Will the factory need to shut down?
Most installations do require a planned shutdown, but it is usually much shorter than businesses expect.
The shutdown is needed to complete the final electrical connections to the main distribution board and install the current transformers required for the system to operate correctly.
In most cases, this shutdown lasts between 15 and 30 minutes.
Occasionally it may take longer where access to the main distribution board is particularly difficult or the installation is more complex, but these situations are the exception rather than the rule.
To minimise disruption, shutdowns are normally scheduled during periods that already have minimal impact on production, such as:
Tea or lunch breaks
Planned maintenance windows
After production hours where appropriate
This planning allows the business to continue operating with minimal interruption.
What happens after the final connections?
Once the final electrical connections have been completed, power is restored and the commissioning process begins. The system is tested to confirm that it is operating correctly and delivering the expected performance.
All required electrical testing is then completed before a supplementary Certificate of Compliance (COC) is issued for the new installation. This ensures the installation complies with the relevant electrical standards and is ready for normal operation.
Preparation is what keeps downtime short
One of the reasons power factor correction installations cause so little disruption is that almost all of the work is completed before the shutdown begins.
By installing the panel, routing the cables, fitting the circuit breaker, and preparing the connections in advance, the installation team only needs a short interruption to complete the final connections safely.
Careful preparation is what allows production to resume quickly.
The installation is usually simpler than businesses expect
Many decision makers expect installing power factor correction to be a complicated electrical project. The reality is often much simpler. The biggest challenges are usually practical rather than technical. Larger systems can be heavy and difficult to position, and some sites have limited access for routing large electrical cables.
The installation itself, however, follows a well established process that experienced teams carry out regularly. For most businesses, the actual disruption is far less than they anticipated before the project began.
Final thoughts
Concerns about downtime are completely understandable when considering any electrical upgrade. Fortunately, power factor correction installations are designed to minimise disruption from start to finish. Most of the work takes place while your business continues operating normally. The planned shutdown is usually brief, carefully scheduled, and limited to the final electrical connections.
With the right planning, businesses can begin reducing unnecessary electricity costs without lengthy interruptions to production.
If you're considering power factor correction and would like to estimate the potential savings before taking the next step, use Alpha Power Solutions' free Power Factor Correction Calculator. It provides a quick estimate of the savings your business could achieve and helps you decide whether a detailed assessment is worthwhile.
