The PD-Alarm is an asset mounted device for indicating the presence of partial discharge in high voltage switchgear, ring main units (RMUs) and dry type transformers. Designed for use in small substations, the instrument can activate local and remote alarms in addition to local indication. Alarms can be configured to operate either locally with SCADA or remotely using an optional integrated modem.
The PD-SG1 is a Switchgear PD detection and location instrument. The unit detects TEV signals generated by internal discharge, as well as acoustic discharge generated by surface tracking or corona. The dual CC-TEV sensors allow for accurate the location of PD in Switchgear up to 8cm in length.
The PD-SGS is a dual transducer PD detector for Switchgear. The instrument detects TEV signals generated by internal discharge, as well as acoustic discharge generated by surface tracking or corona.
Partial Discharge is attributed to the failure of 80% of electrical plants. Early detection of PD can be essential in protecting equipment and personnel. By incorporating expert Partial Discharge assessment and investigation by IPEC's professional team of service engineers and consultants, a full assessment of key plants offer advantages to asset managers.
Our range of Partial Discharge monitors are designed for application on critical assets; including MV, HV and EHV cables, Switchgear and accessories. Partial discharge data collected from distributed monitors is stored in a central database. Customers have password protected access to this data via the Internet, allowing them to browse the data and analyse plant conditions from any PC.

Introduction to IPEC


Our Clients

IPEC work with network operators, large and small, around the world, including:

UK Power Networks [GB], National Grid [GB], Network Rail [GB], Siemens, Heathrow Airport [GB], Dubai Electricity and Water Authority – DEWA [AE], Saudi Electric Company – SEC [SA], Korea Electric Power Corporation – KEPCO [KR], LG Group [KR], Vietnam Electricity – EVN [VN], Tenaga Nasional Berhad – TNB [MY], Provincial Electricity Authority – PEA [TH], China Steel Corporation [TW], Taiwan Power Company [TW], Hong Kong Electric – HKE [HK] and many more.

About IPEC

IPEC are experts in On-line Partial Discharge (PD) testing of MV and HV plants. We develop world leading technology in the detection and location of PD in cables, switchgear and accessories. The ASM, our PD monitor for permanent installation, is used on over 3,500 HV assets around the world; by both utilities and industrial.

Based in Manchester in the UK, IPEC offer turnkey solutions for asset monitoring and testing. Our products range from simple to use instruments for routine spot testing, to sophisticated permanently installed systems that can, for instance, be used to monitor every joint and termination on a 20km long EHV cable.

  • Partial Discharge detection and location in MV, HV and EHV power cables
  • Commissioning testing for PD in newly installed HV subsea cables
  • Location of PD cable terminations
  • PD Detection and location in critical MV switchgear
  • Long term PD monitoring
  • Routine PD spot testing
  • Personnel safety devices
Bringing expertise and market leading products and services to the power industry by listening to customer needs and creating innovative, quality, technical solutions that are sustainable, reliable and long term.

Technology. Service. Support.

IPEC Background

IPEC Limited was founded in 1995, with the objective of transferring cutting edge technology to the power industry by generating a dialogue between academic research, industry and commerce. This has enabled the power industry not only to fully exploit the research and innovation of scientists at the forefront of power engineering but to make an active contribution to the direction of future research and development. In turn, IPEC has been able to respond efficiently to market demands and develop commercially viable products that bring real monitoring and control solutions to the power industry. Read our company values here.


Contact Details

Head Office

  • IPEC Ltd, Carrington House, 39 Carrington Field Street, Stockport, Manchester, SK1 3JN, United Kingdom
  • +44 (0) 161 226 0045


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