Renewable energy Site Work Work undertaken Case Studies Wind farms Power generation Marine energy Hydro-power Power stations C.H.P. L.F.G Remanufacture Hand-held digital tools Loom repairs Ignition controllers Tec jet repairs Dungs valves Flare systems R.T.U. units Scada Laptop/software Made cable harness H.M.I.s PCBs Wind turbine repairs Calibration O.E.M. Digital engine management unit contains components that are now obselete. The cost for a new system was £15,000. Servotech ‘reverse engineered’ the unit and replaced the components with modern electronics. This not only allowed the customer to save many thousands of pounds, it also enabled the latest technology which allows the gas engine to run efficiently. ① A customer had a fire within the gas engine container. This resulted in part of the wiring harness loom to be destroyed. The O.E.M. held the harness for three days and quoted two weeks delivery. Servotech collected the harness from the O.E.M. and produced a new harness within three days. ② A bank of six gas engines had been out of action for five days due to a power supply failure. The power supply was collected from site, repaired and returned within 24 hours. All six engines were returned to action. ③ Tel: +44 (0)1538 753918 Email: [email protected] www.servotech-ltd.com
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Transcript
Renewable energy
Site Work
Work undertaken
Case Studies
Wind farms Power generation Marine energyHydro-power Power stations C.H.P. L.F.G
Remanufacture Hand-held digital tools Loom repairsIgnition controllers Tec jet repairs Dungs valvesFlare systems R.T.U. units ScadaLaptop/software Made cable harness H.M.I.sPCBs Wind turbine repairs Calibration
O.E.M. Digital engine management unit contains components thatare now obselete. The cost for a new system was £15,000.Servotech ‘reverse engineered’ the unit and replaced thecomponents with modern electronics. This not only allowed thecustomer to save many thousands of pounds, it also enabled thelatest technology which allows the gas engine to run efficiently.
①
A customer had a fire within the gas engine container. Thisresulted in part of the wiring harness loom to be destroyed. TheO.E.M. held the harness for three days and quoted two weeksdelivery. Servotech collected the harness from the O.E.M. andproduced a new harness within three days.
②
A bank of six gas engines had been out of action for five days dueto a power supply failure. The power supply was collected fromsite, repaired and returned within 24 hours. All six engines werereturned to action.
Discharge unit P.I.D.S. RadiocommunicationCab handset Door motors E.C.U.Ignition controller Research & development Testing solutionsScada Calibration Braking systemsDoor systems Air conditioning/HVAC Windscreen wipersCrossing lights Cab and site C.C.T.V. U.P.S. systemsPowers supply Train/tram safety systems Clock and P.I.D boards
Due to a misunderstanding, the air conditioning systems in thedriver’s cabs were never installed at a tram company. Servotechwere asked to design a control P.C.B., prove the system andcommission. With the assistance of an aircon specialist,Servotech produced a P.C.B., connected all equipment andenabled the system to be fully functional.
①
Many of the trams at a tram company were failing due to ‘overtemperatures’ in the drive control systems. This was due to a lackof ventilation in the cases of the drive control systems. Obviously,cutting external holes in the cases was not acceptable, due to thisallowing moisture ingress. It was decided to install cooling fansinternally to ‘stir’ the air away from hot components, allowing theair to cool sufficiently to prevent ‘over temperature’ in the drive.
②
A tram company had to convert the radio systems to digital fromtheir existing analog format. Servotech were asked to provide theinterface between the two systems. This project was extremelycomplex, having to liaise between a digital supplier and the tramcompany. With support from all parties, the project was completedwithin budget, and on time.
Servotech were asked to support a water utility in theirmaintenance and commissioning of uninterrupted power supplies(U.P.S.) within their catchment area. Servotech have surveyed anumber of sites, and have arranged for follow-up visits to eitherrepair or replace broken units.
①
Obsolescence was causing a power utility many problems due toequipment being deemed unrepairable by the O.E.M. To replacethe battery back-up systems was going to cost millions of pounds.Servotech were asked to evaluate the obsolete boards andestablish if the equipment could be supported. In general, when aP.C.B. is deemed obsolete by the O.E.M. there is a period of timebefore the individual components become obsolete.
Consequently, Servotech can continue to support the equipmentby sourcing components individually and repairing the P.C.B.s.
Several ‘oven temperature’ faults were detected by an engineer inthe north of England. It was obvious that a method of cooling wasrequired. Due to the abundance of compressed air available, itwas deemed suitable to use ‘vortex’ tubes to carry out the coolingon two specific large A.C. drives. The installation of the coolingsystem was carried out on a Sunday to prevent any productionissues.
The end result was a cabinet that did not fail due to ‘oventemperatures’.
①
A food processing customer was losing A.C. drives on a regularbasis.
Servotech identified the common failure mode and rebuilt thecircuitry to include voltage protection. This ensured that the drivesdid not fail.
Encoders Monitors H.M.I.Scheduled maintenance Motors Power suppliesDrives Condition monitoring Energy efficiencyReducing downtimes Programming Site surveysMotor rebuilds Modifications Drive retro-fitsKey-pad displays Light guards/curtains Loan worker unitsSupply and management of obselete parts
Mon 8:45 am Customer rings in, production line down sinceFriday, asks for an engineer to attend site A.S.A.P.
Mon 11:30 am Engineer on the plane to Aberdeen.
Mon 1:15 pm Engineer on site with customer.
Mon 6:15 pm First batch of paper through corrugator. Production now operational.
A security printing company was losing a large amount of moneydue to a faulty A.C. drive.
Over the course of a weekend Servotech sourced, programmed,installed and commissioned a new drive to ensure that theproduction line was available for Monday morning.