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Power Capacitors - Power Factor Correction Equipment

MV/LV Power Factor Correction - Cabinets - Capacitor Maintenance - Harmonic Surveys/Modelling

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. Comprehensive stocks of capacitors and associated equipment enable quality products to be produced at competitive prices and to meet the shortest delivery periods.

Quality - Second to None

Working within the policies of BS EN ISO9001:2008 approval, all equipment is manufactured and tested to all appropriate standards.

Power Factor Correction - Multiple Benefits

Power Factor Correction, when correctly specified, completely removes the compulsory charges levied on consumers with a poor power factor. The savings achieved can amount to many thousands of pounds a year, depending on consumption. The reduction in loading on electrical distribution equipment increases supply capacity, reduces losses and also reduces CO2 emissions, which are all crucial to today's commercially and environmentally aware society.

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, designed specially around a particular set of requirements.

Capacitor Elements - The PowerCan

In cylindrical aluminium casings, from 0.25kVAr to 35kVAr, these are perfectly suited to the individual correction of motors in a motor control centre. Their compact dimensions and minimum IP2X rating are unmatched in this application. The market-leading design and optimum temperature rating result in increased reliability, greater lifetime, and improved savings than other, less well specified types.

Capacitor Chassis - The Formula Ranges

The Formula 50 and Formula 150 both comprise capacitors, contactors, main and control fusegear on a backplate mounting assembly, intended for use as the building blocks of an automatic system, housed within a switchboard or MCC. The Formula 50 range has a maximum rating of 50kVAr, the Formula 150 range can be fitted with up to 150kVAr. Both types are available for standard or de¬tuned systems, according to the particular requirements of a system. The efficient utilisation of space and temperature rating exceed the capabilities of any major competitor.

Automatic Systems

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


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.


Intended for the ‘Standard Industrial’ application, the GreenLine range provides the simplest solution to whatever Power Factor Correction scheme is required. With standard ratings available to over 500kVAr in a single cubicle, the compact dimensions enable us to meet constraints our competitors cannot.


With electricity bills now including penalty charges for poor power factor for the smaller consumers, 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.

RealTime Switching - PowerCabFast

By using semiconductor switches and the latest in microprocessor based controllers, almost instantaneous switching can be achieved. All PowerCabFast systems are detuned, and include the optimised smaller stages of the BlueLine range.

Better Components = Lower Losses

By using better specified components across the whole range of designs, Power Capacitors Ltd is able to offer equipment with lower losses than its competitors.

This difference in losses 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.

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 Ltd is able to 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
  • Specialist Product Design Service

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Power Capacitors Ltd Recent Projects

Images top to bottom;
The PowerCab Plus - Blueline
Formula 50 Chassis & The PowerCan

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

Power Capacitors Recent Projects

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