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Power Capacitors - Power Quality / Power Factor Correction Equipment

Power Factor Correction - PowerCab - EnviroCab - Capacitor Maintenance - Harmonic Surveys - PowerSoak

Power Capacitors Limited is “Power Factor Correction” having specialised in all aspects of power quality since 1973.

Power Capacitors Ltd supplies capacitors for Power Factor Correction, Harmonic Filters and Power Electronics applications to Industrialists, Equipment Manufacturers, Electricity Supply Companies and Contractors alike.

Quality - Second to None

Working within the framework of our ISO 9001:2015 approval, all equipment is manufactured and tested to all appropriate standards, including IEC 60831, IEC 60439, and IEC 61921.

Power Factor Correction - Multiple Benefits

Power Factor Correction, when correctly specified, completely removes the charges levied on consumers with a poor power factor, and the savings achieved can amount to many thousands of pounds a year. The reduction in loading on electrical distribution equipment increases supply capacity, reduces losses and reduces CO2 emissions.

Capacitor Products - Total Capability

The comprehensive range of capacitor products available enables almost every requirement for power factor correction to be satisfied by a standard product. Where a solution does not already exist, our specialist engineers are able to offer a custom solution, accommodating the unique requirements of any set of specifications.

Automatic Systems

To meet the diverse needs of ALL industries and applications, Power Capacitors has developed two distinct ranges of automatic PFC systems:

PowerCab - BlueLine

Designed with unparalleled performance and reliability in mind, the BlueLine range offers the most robust solution bar none for the most demanding applications, with the emphasis on performance and extended lifetime.


The EnviroCab range offers a technically compliant and cost-effective solution to smaller equipment requirements. Ratings from 10kVAr to 75kVAr meet the most cost-sensitive requirements in ways our competitors can’t match.

Better Components = Lower Losses

By using better specified components across the whole range of designs, Power Capacitors’ equipment has lower losses than its competitors.

This difference can amount to a significant financial saving, for example, a 300kVAr detuned system from one of the ‘market leading’ PFC companies would cost over £350 per annum more to operate than our BlueLine system.

Where cost of ownership is more important than a low initial purchase price, Power Capacitors offers the optimum solution.

Active Harmonic Filters

The ever-increasing utilisation of ‘smart’ loads and Energy Efficient technologies means that Power Quality Management has never been more important.

Power Capacitors has a versatile and World-Class clean technology solution to these demands based on the MERUS A2 series Active Harmonic Filters. Built on a class-leading 3-level topology, the A2 series is suitable for all applications including technological, industrial and commercial buildings, rated for supplies up to 480V or 690V as standard, for both 3 wire and 4 wire applications.

The scalable systems range from 50A to 1400A and are easily integrated to deliver simultaneous solutions to the multiple Power Quality problems of Harmonic Distortion, Power Factor Correction, Flicker and Load Balancing.

Surge Suppression – The Power Capacitors ‘PowerSoak’ Surge Arrestor

There is no business today which would not suffer from the failure of a piece of sensitive equipment as a result of a mains-borne voltage spike. The safe attenuation of mains-borne spikes and short-term surges is an important part of any co-ordinated power quality strategy.

Power Capacitors is able to offer a “one-size fits all” approach, which is easily understood and simple to integrate into an existing distribution system.

Capacitor Maintenance - Total Service

Power Factor Correction equipment is a piece of capital equipment and regular maintenance is essential. Regular servicing ensures that the rated output is maintained, maximising the financial and technical benefits.

Unlike our competitors, Power Capacitors can service and repair every LV capacitor installation regardless of manufacturer.

Our team of fully qualified and experienced specialist Capacitor Engineers perform these services across the whole of the UK.

Technical Support & Site Services

The services performed by the company’s specialist engineers include:

  • Power Factor Surveys performed free of charge on the UK mainland
  • Load Profiling with report & recommendations
  • Harmonic Surveys with full technical report & recommendations
  • Installation of Capacitor Equipment

Power Factor Correction

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Power Capacitors Limited
30 Redfern Road
B11 2BH

Email Power Capacitors

Tel: 0121 708 4511
Fax: 0121 765 4054
Sales: Tim Brown
Technical: Matt Robbins

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