CONTRELEC is a team of experienced electrical engineers with over 20 years experience in electrical design, manufacturing and commissioning with particular expertise with Ross Hill and Hill Graham Controls SCR systems. We supply spare parts, repair, test and calibrate AC and DC control modules and PCBs used on Ross Hill and Hill Graham Controls SCR Systems.
We design, deliver and support electrical engineering projects, from simple machine controls to large scale production and process line systems. Our key skills include:
AutoSync (ACII) Module Calibration and Repair
We use our standard AC Simulator with an adapter interface to conduct a comprehensive set of tests and calibrations to return your AutoSync Modules to full health. We simulate and verify the operation of all trip and alarm functions, speed and voltage regulation, and KW and KVAR load sharing. the built-in synchronising and exciter circuits are also thoroughly proved.
Field Regulator Module Calibration and Repair
Our unique Field Regulator Simulator allows us to quickly, comprehensively and accurately test Hill Graham Field Regulator Modules. The module was produced in two basic configurations: Single Field for applications such as Rotary table, Top Drive or single motor Mud Pumps or Drawworks, and Dual Field for dual motor Mud Pumps and Drawworks.
Hill Graham and Ross Hill Printed Circuit BoardsContrelec offer competitive pricing and fast delivery on many Hill Graham Controls printed circuit boards (PCBs). We are able to engineer solutions to replacing obsolete parts with modern substitutes and ensure the upgrade meets the technical requirements.
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A complete programmable flexible control panel for £2500
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