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Outram Research PM7500DF’s Fast Frequency Measurement for Dynamic Containment

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Outram Research Ltd manufactures and supplies high-quality Power Quality Analysers and monitoring equipment to help you fulfil the National Grid ESO’s Dynamic Containment criteria.

Find out all you need to know about how our high-quality, multifunctional analysers work in helping providers – both existing and new – achieve Dynamic Containment Provision.

What is the Dynamic Containment Frequency Response Service?

Dynamic Containment is a frequency response scheme that has been launched by the National Grid ESO. The scheme was introduced to combat the reduction in stability of the electricity system, using energy storage assets on the network along with high-calibre power quality measurement devices to implement this requirement.

These fast-acting frequency response products are necessary since the network is finding it harder to keep standard mains frequency at the required 50Hz. As it stands, the National Grid has an obligation to control that frequency within ±1% of 50Hz, meaning it should never dip below 49.5Hz nor should it surpass 50.5Hz. Furthermore, recently, the grid has been experiencing decreasing levels of inertia, and consequently, larger losses.

The Dynamic Containment provision is the first of several end-state services to help deliver a faster-acting response, deployed ‘post-fault’ (i.e. after a significant frequency deviation). The National Grid plans to deliver more similar services (including Dynamic Moderation, Dynamic Regulation and so on) to support the network as the electricity system becomes more decarbonised and the UK moves towards national net-zero targets.

How does the PM7500 help providers achieve Dynamic Containment Provision?

System frequency is a continually changing variable determined in real-time between system demand and generation. If the demand is bigger than the generation, the frequency falls, whereas if the generation is bigger than the demand, the frequency rises.

Providers have to submit their baseline (i.e., the expected output) at specified times via their operational metering method. Providers must show they have systems that can react quickly enough to stabilise the frequency in the event of a fault. They must also prove that the incumbent system they have is capable of responding via a backup should the frequency drop below a certain level. The National Grid requests hourly log files to be submitted in real-time to ensure providers are fulfilling these obligations.

While delivering this Dynamic Containment Service, providers must submit ongoing, gapless and synchronous data packets of all relevant power and fast frequency measurements every hour to fulfil the National Grid’s requirement to prove that they are capable of responding as per the Dynamic Containment agreement.

Outram Research designs and manufactures the rack mounted PM7500DF (Dual Frequency) substation Power Quality Analyser. This analyser not only facilitates the submission of these hourly log files with their fast frequency measurements to 0.001Hz resolution delivered over TCP-IP, but it can also be used to trigger the feed-back loop mechanism prompting the battery storage reaction in case of relevant frequency changes.

Fast and Accurate Frequency Measurement

Outram Research’s power quality analyser measures the frequency to the required accuracy and resolution compliant with the National Grid’s expectations. This analyser can therefore facilitate you, as a provider, to fulfil your Dynamic Containment obligations.

Power quality monitoring equipment will need to be integrated within your existing systems and proprietary methods of data delivery. Outram Research can not only supply the measurement products most fit for purpose, but our experienced team can be on hand to support those concerned with aggregation and consolidation of the required data before it is uploaded to the National Grid’s database.

The PM7500DF is resilient, hardwearing and capable of withstanding temperatures from -20 to +60°C. If you want a reliable product that delivers accurate and timely data you can send to the National Grid as evidence to receive your financial rewards, look no further than Outram Research’s PM7500.

Meeting Feedback Loop Specifications

As part of the Dynamic Containment process, the power sources used to stabilise the frequency, predominantly Battery Energy Storage Systems (BESS), have to be triggered to react in an appropriate time scale. This needs to be done when the frequency falls or rises below or above the specified thresholds.

As well as providing accurate frequency measurements for system validation, when configured appropriately, the unit can deliver that fast frequency measurement over MODBUS within 270ms, an output which can then be used in the feedback loop to stimulate the required action from a battery storage asset within National Grid’s required time frame.

We can facilitate your Dynamic Containment compliance in both system delivery and system validation

Benefits of Using Outram PQ Monitoring Equipment as part of the Dynamic Containment Provision

  • Seamless hourly data download capabilities, including Fast Frequency Measurement to 0.001Hz resolution, available over TCP-IP.
  • Fast Frequency Measurement to 0.001Hz resolution available over MODBUS in no more than 270ms.
  • Bespoke data logs with customisable parameters set by the provider.
  • Analyser works autonomously, reducing the need for manual supervision and input, improving productivity.
  • Helps providers remain compliant with multiple schemes and reap financial rewards with complete peace of mind.
  • Highly accurate measurement of the frequency to 0.001Hz resolution on V4, along with other highly desirable recorded parameters
  • Helps the end customer improve overall grid reliability and safety, while minimising interruptions in power.

For a complete list of PM7500 product features and specifications, click here.

At Outram Research we have more than 30 years of experience designing and manufacturing power quality analysers and fault-level monitoring equipment.

Our experienced and friendly team understands the technical requirements to meet Dynamic Containment and can help you to choose the most effective solution for your infrastructure.

If you would like to learn more or get a quote for the measurement equipment required, please contact the team at Outram today.

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+44 (0) 1243 573050

 

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….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
Your kit knocks spots of the bigger manufacturers

Your kit knocks spots of the bigger manufacturers.

Andrew Williams, MD, Smart Electrical Systems, Sept 2018
The analyser did everything that we needed. We were also impressed with how quickly it got across the US.

The analyser did everything that we needed. Rob was surprised at how easily it went on.

We were also impressed with how quickly it got across the US. It was there before we even left [the UK] and we didn’t expect that to happen.

It’s a specialised subject and the support we received from Duncan was second to none.

Chris Brookes, Simpson and Wood, UK Feb 2019
By far the best project partner I have ever worked with!

Thank you for all the help and support you all gave me on the RTFLM project… It was an absolute privilege to work with you all and Outram are by far the best project partner I have ever worked with!

Cameron Scott, Innovation Engineer, UK Power Networks, 2022
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
It’s an amazing piece of Kit!

I certainly will be hiring another PM7000 again. It’s an amazing piece of kit!

Stuart Turner, PCAS (Power Control and Automation Solutions) Ltd, Feb 2020
…PM3000 is the best product in my shop

The reason I think your PM3000 is the best product in my shop is the reliability and the software. I use 5 different brands of recorders and this one by far has been the most reliable. The software updates are great, with the 60 day reminders. The layout of the software and every single function make it simple and user friendly unlike most products.

Greg Ellis, Electrical District #3, Arizona USA, 2014
That’s a hell of a piece of Kit!

That’s a hell of a piece of Kit!

Now I’ve seen what it can do I’m going to mention it to another customer here in the UK who I know is having trouble.”

Rob Rose, Simpson and Wood, UK Feb 2019
“These [PM7000s] really are pucker units”

Following successful measurements using 2 of our PM7000 Power Quality Hire units…

“We captured some good stuff, these [PM7000s] really are pucker units.”

Shaun Smith, Firstfield Electrical Ltd, March 2021

 

Shaun Smith, Firstfield Electrical Ltd, March 2021
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.
I have been quite astounded at the detail the Outram Data Logger has captured.

During communications regarding the 3 PM7000TIs that Bob is managing remotely, with new data sent back to him over email every 24 hrs, he told us that he has been finding detail in the recordings he never thought he would see. “I have been quite astounded at the detail the Outram Data Logger has captured.”

Bob King, Power Phase Services, UK
…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
I have used data loggers in the past… Not in the same league as the Outram equipment

Thank you for all your fantastic efforts yesterday.

I have used data loggers in the past but they were not in the same league as the Outram equipment.

Last December when Network Rail asked me to install PQ monitoring I looked at hiring a couple of [competitor] PQ monitors. I had a Network Rail Graduate alongside me and I thought it would be a good learning exercise for him. As I began to understand the railway electrification system I realised [these] were a non-starter, so when the local electricity board ‘turned the screw’ I decided to look deeper.

I discovered Outram and when I read about your collaboration with Scottish Power I immediately realised the Outram equipment was the only one to consider. From what I have seen since yesterday morning I know I was correct in contacting your company.

Bob King, Power Phase Services, UK (Contracting for Network Rail)
It’s shown me just how much time your software is going to save me!

What you showed me this morning and what I’ve been doing this afternoon has shown me just how much time your software is going to save me!

Bob King, Power Phase Services, UK (Contracting for Network Rail)
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
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