Case Studies
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Sludge Tank Level Monitoring
AMS was contacted by a client to utilise our instrumentation expertise to propose a solution to an obsolescence issue surrounding the level measurement of radioactive effluent in a nuclear power station’s effluent storage tanks.
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Instrument Cubicles
As part of a boiler lifetime modification program, AMS were engaged by the client to design, substantiate, build, test and deliver a suite of instrument cubicles to support a risk reduction initiative to meet the station’s Safety Case.
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PCB Reverse Engineering
When an old piece of instrumentation became obsolete, AMS reverse engineered the PCB enabling the client to avoid the costly exercise of qualifying a new piece of equipment for the application.
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PA System Replacement
The Public Address (PA) system at Hinkley Point ‘A’ was suffering the effects of ageing and obsolescence. AMS were contracted to conduct an optioneering study and to ultimately implement a replacement system.
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C&I Overlay System
Following the final shutdown and defuelling of Hinkley Point ‘A’, AMS delivered a new and separate C&I ‘overlay’ system to meet the plants monitoring and communication needs for the next phase of decommissioning.
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Solenoid Panels
EDF Energy – Dungeness B
The second phase of a 3-phase project saw AMS engineer a solution and subsequently deliver a series of solenoid valve control panels.
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SRVI & ABDS Logic Cubicles
EDF Energy – Dungeness B
The Automatic Boiler Depressurisation System (ABDS) and Reactor Safety Relief Valve Isolation (SRVI) System were two of the three modifications being prioritised for immediate implementation at DNB.
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IFD Control Room Pneumatic Panel
EDF Energy – Hinkley Point B
AMS undertook a site survey and produced a detailed P&ID of the existing system before completing the detailed design, build, installation and commissioning activities.
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Nitrogen Plant Interface Cubicles
EDF Energy – Dungeness B
AMS’ scope was to utilise the existing controls and indications within the CCR whilst providing an interface which allows the controls and indication to operate with either the old or new plant
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Control System Upgrade
St Cuthbert’s Mill
AMS implemented the modifications to the control system and commissioned on site to the client’s satisfaction.
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Polar Crane
EDF Energy – Sizewell B
AMS’ report needed to specify component qualification requirements, recommend modern component equivalents and substantiate the use of these components on a technical basis.
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EMI/ RFI Resilience – Survey & Recommendations
EDF Energy – Several Sites
AMS will undertake detailed site walk downs of the required stations and produce optioneering reports providing recommendations for the individual panel modifications.
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PA System Technical Support
EDF Energy – Sizewell B
AMS provisioned a Senior C&I Engineer with suitable qualifications and experience in working on PA systems to establish thorough visual inspections.
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Alternative Indication Centre (AIC) – Scada System Upgrade
EDF Energy – Hinkley Point B
AMS partnered with Servelec Controls (Now ITI) to deliver a new SCADA system that mimics the functionality of the existing system.
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Steam Dump Isolation Valve Control System
EDF Energy – Dungeness B
AMS evaluated the proposed EDF concept design and expanded the concept whilst working closely with the site engineers to ensure the system was fit for purpose and compatible with existing infrastructure.
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EMI/ RFI Resilience – Surveys, Recommendations & Modifications
EDF Energy – Several Sites
AMS has undertaken detailed site walk downs on some stations and produced optioneering reports providing recommendations for the individual panel modifications to improve cabinet RFI resilience.
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Stator Water Caustic Dosing System
EDF Energy – Heysham 2
Due to chemical control issues with TG7 and 8 stator winding cooling water systems, there became a requirement to improve the pH control within the circuit.
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Cold Eye Review – Level Control System
EDF Energy – Hartlepool
AMS was asked to provide a cold eye review of the TG2 Turbine Extract Condenser (TEC) Level controller system that had proven problematic following an upgrade.
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RAETP Alarm Management System
EDF Energy – Heysham 1
The existing RAETP (Radioactive Active Effluent Treatment Plant) alarm panel showed signs of ageing and needed replacing with a new alarm panel with the same functionality and maximum size.
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Superheater Overpressure Instrumentation Replacement
EDF Energy – Dungeness B
AMS was tasked to find a suitable modern replacement for the two signal isolators and the power supply based upon an item equivalency evaluation.
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Reactor CO2/ O2 Injection System
EDF Energy – Heysham 1
AMS designed, built, tested, delivered and site tested a flow monitoring and valve control panel for the oxygen injection system to be used at Heysham 1 power station
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Replacement CCR Hardwire Fire Alarm System
EDF Energy – Hinkley Point B
AMS provided a detailed design for a replacement hard wired fire alarm system for Hinkley Point B Nuclear Power Station.
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Gaseous Activity Monitoring (GAM) System – Installation Assistance
EDF Energy – Heysham 1
To assess the interface feasibility and detailed design which will be required prior to the installation of the new fleet wide Gaseous Activity Monitoring (GAM) system.
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B/G/90 Valve Installation
EDF Energy – Hinkley Point B
This project involved the design of a modification to valve B/G/90 to provide automatic operation of the valve to overcome the potential local hazards which could prevent isolation of the system if a seismic event were to occur.
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