PM7000-FLM Fault Level Monitor

THE OUTRAM FLM PRODUCT TRIALS

The Outram FLM is the first ever commercially available Fault Level Monitor. It uses natural disturbances observed on the network to derive it’s results.

UK trials - ScottishPower Energy Networks

After accurate and encouraging results produced during lab trials, and with the help of funding from OFGEM’s Innovation Funding Incentive (IFI), field trials were carried out with Outram Research’s partners Scottish Power Energy Networks (SPEN).

These trials were to compare results generated by the FLM with fault currents calculated by analytical modelling, the most accurate solution previously available. The results demonstrate that the Outram FLM can consistently and accurately calculate fault current in real-world applications.

“Recent trials held in conjunction with ScottishPower Energy Networks confirm that the Outram FLM (predicting fault current using natural disturbances from the network) gives consistent results that compare positively with detailed IPSA and DigSILENT models, typically within 3-5% of the modelled fault current. – The Outram FLM results could be more accurate than the models!”

Geoff Murphy, ScottishPower Energy Networks, 2012

US tests - Western Power Distribution (WPD)

Western Power Distribution, Outram research Ltd, S&C Electric Company and Parsons Brinckerhoff are currently working on a Tier 1 Low Carbon Networks Fund (LCNF) project endorsed and partially funded by OFGEM which aims to use the Outram FLM to speed up distributed generation connections through the monitoring of real time fault level values.

Stage 1 of this project, 11kV lab testing, has already been achieved. In July 2012, WPD carried out trials with the Outram FLM and an IntelliRupter ® PulseCloser, (a unique alternative to conventional automatic circuit reclosers) manufactured by S&C Electric Company, at S&C’s Advanced Technology Center in Chicago, USA. (By comparison with conventional reclosers the IntelliRupter significantly reduces the amount of energy the network is exposed to when testing the circuit to see if a fault is still present).

In the lab, non-customer affecting ¼ to ½ cycle current and voltage disturbances, generated during the IntelliRupter’s pulseclosing operations, were used to enable the FLM to predict the fault currents produced by separate, deliberately instigated and independently measured bolted faults produced under identical source conditions. Thus during the trials it was possible to compare the predicted fault level with the actual measured peak current seen in response to the bolted fault. These trials were outstandingly successful, the results showing that the FLM predictions were between 2.5 and 5% of the current measured by lab instrumentation – an error margin felt very hard to improve upon as noise on the network and sensor deficiencies will always produce some degree of uncertainty.

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…calculation of fault level trivial in comparison to the ‘manual’ methods

The Outram equipment (and associated software) makes calculation of fault level trivial in comparison to the ‘manual’ methods.

Rob Weller, Rina Consulting, UK Power Networks Earth Fault Level Project
Your kit knocks spots of the bigger manufacturers

Your kit knocks spots of the bigger manufacturers.

Andrew Williams, MD, Smart Electrical Systems, Sept 2018
Outram PM7000FLM proved capable of reliably assessing Fault Level

The Outram PM7000FLM and associated software proved to be capable of reliably assessing / calculating fault level from both repeated low-level steps, as well as one-off larger pulses.

Rob Weller, Rina Consulting, UK Power Networks Earth Fault Level Project, March 2018
….Commendable for its ease of use and portability

The Outram equipment is commendable for its ease of use and portability.

Rob Weller, Rina Consulting, UK Power Networks Earth Fault Level Project
Bluetooth functionality with PMScreen and real time monitoring is sensational.

Thank you so much for attending to [my support query], and so quickly! Very impressed with these [PM3000] power analysers and the Bluetooth functionality with PMScreen and real time monitoring is sensational.

Euan Galbally, Operations Project Engineer - Supply Restoration, SSE.
Fault Level Monitors to Validate ENWL RESPOND Project Network models

Fault level monitors – Outram fault level monitors have been installed at seven [Electricity North West] Respond [Project] sites. These monitors will validate our network model and the Fault Level Assessment Tool. Electricity North West Ltd RESPOND Project Newsletter, May 2016.

Electricity North West Ltd RESPOND Project Newsletter, May 2016.
The Outram PM7000FLM … software made analysis of fault-current straightforward

We found the Outram PM7000FLM useful for capturing data, and its software made analysis of fault-current straightforward. Other methods of data capture can be used, but would require further development to accurately give fault level information; the area where the FLM scores is its ease of use, and also that statistical analysis is applied over the whole test period, rather than at a ‘snapshot’ of one event as our analysis. This makes it less prone to noise and other disturbances on the system.

Rob Weller, Rina Consulting, UK Power Networks Earth Fault Level Project, March 2018
…PM3000 is the best product in my shop

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Greg Ellis, Electrical District #3, Arizona USA, 2014