Although you still have to find out what is wrong with this switch and fix it, at least you've identified the culprit. The Limble team is very quick to respond to any questions and they are very open to suggestions. We draw on the real-life experience of the course tutor and on established good working practice. For instance, consider the example of TDR testing for underground cable. This cookie is set by GDPR Cookie Consent plugin. There is an indirect correlation between the mechanical breaking of rotor bars and the fluctuations in the stator current. This may be a simple task, as in the case referred to above, or it may be a much bigger one. As a general rule, the technique of swapping identical components should be used only when there is minimal chance of causing additional damage. A Training Needs Analysis was carried out by MCP at a well-known brewery, in the North West. We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. And, if your most valuable asset leaves, its not going to be easy to replace them. Determine and remove the cause 3. Read on to find out more. The 6-point fault finding technique is a method for finding and fixing mechanical operating malfunctions. At least, the way I see it: There are 9 types of maintenance split between Preventive Maintenance and Corrective Maintenance. Engineering projects come in all shapes and sizes and require a variety of skills to your projects on track and within budget, often whilst managing multiple projects at the same time. It will notify the packaging operator well ahead of time. b,Bdc8DjXB5l,Y5l,&-Vdc1jql,5l,z5l,:5l,G6I#E-rIu-m ZUFqFu5DF. Your email address will not be published. These are also called balanced faults and are of two types namely line to line to ground (L-L-L-G) and line to line (L-L-L). Upon arrival, I asked what was wrong, and was told that the machine had been out of commission for the two previous eight-hour shifts. Sometimes removing the cause of a system failure is not enough, and the fault must then be rectified. Understanding the importance of multi-skilling your engineers is the first step towards addressing any skills shortages you may have. This is done by retrieving the parameters of equipment performance such as voltage, current, vibration, temperature, pressure and other relevant process variables while the equipment is working under normal conditions. This technique actually consists of several steps. However, if you have a fault indication you are almost there. injection would rcd testing as you inject a fault current to trip it and i thin k so testers may sample certain test mathematically. The second blog looks at an example of technician recruitment. The returned pulse signal from the cable simultaneously indicates the presence and the location of fault through time and velocity of the returned pulsed signal. Its fairly self explanatory, put the input IN then check the output at the OUTPUT. If the cable has a discontinuity or high impedance, the portion of the signal will be reflected back to the test equipment or receiver. What other benefits can a multi-skilled workforce bring. You have 10 left, so half-split those by checking five of them. Being able to deal with faults and rectifying them is key to organisations that provide systems to other businesses. It could also save you money, especially Study of mechanical faults related to mechanical equipment; Failure modes including fracture, fatigue, high temperature creep and corrosion damage; . Example 1. Even better when you consider our business is located in a completely different time zone (somewhere in Australia). xMoA+ #Ji@@Y!Pzhe3qyLf/OptgMy;fc_>zZh9k\1F zupOjH}+_bk*h{]YXktAs?C0Jwp/ 1Evfa_^/o! Their capability to collect, store and analyze data on equipment health and performance was simply too limited. Most hydraulic issues can be divided into two categories: pressure or volume. Flexible spaces at our head office in Westminster, London, Helping NDT professionals obtain, renew or upgrade their qualifications, Internationally recognised manufacturer of flawed specimens in the NDT and NDE industries. MCP's technical training specialises in practical learning programmes for upskilling technicians and operators. The fault injector injects faults into the tar get system as it executes commands fr om the workload generator The next question, Is your card a club? He says yes, eliminating 13 more cards. The information that will really speed up the repair process is knowing the accurate location of the fault. Do you need underlay for laminate flooring on concrete? Course Type | Electrical, Technical Skills, Certificate | City & Guilds Accreditation Certificate, Course Type | Mechanical, Technical Skills, In industry, calibration really does matter. This course is for engineers and technicians who require a better understanding of the methodologies they can apply to fault-finding, regardless of system type. On existing plant add-in the equipment you need for problem-solving. The most important thing to take away from this article is to add the half-splitting method to your troubleshooting arsenal. The goal of the fault isolation process is to localize the fault to the lowest component that can be replaced. connections, open-circuits, short-circuits, device faults (mechanical), supply faults. Most multimeters can provide precise readings of resistance, AC and DC voltage, continuity, capacitance, and frequency. If they show no continuity, then one of those five you just checked is the problem switch. KS01-EG108A Electrical circuit and equipment faults and fault finding techniques Evidence shall show an understanding of electrical circuit and equipment faults and fault finding techniques to an extent indicated by the following aspects: . Injection and sampling Location of a defect or fault found through inserting known data signals or functions at selected test points of the system or process. In TDR, the signal is sent across the test cable and is received after being reflected from the point of fault. The customer support has been outstanding. Fault detection is the process of discovering the presence of a fault in any equipment before it manifests itself in the form of a breakdown. Chiew Seng Chung That's why fault diagnosis techniques have been developed for these systems as well. The 6-point fault finding technique is a method for finding and fixing mechanical operating malfunctions. Fault finding techniques discussed and investigated. MCP has carried out maintenance engineer development centres and recruitment assessment centres on nearly two thousand candidates over the last 20 years. Also that I can track how much time I'm spending on certain jobs over an extended period of time. Proposed Method. These cookies ensure basic functionalities and security features of the website, anonymously. Trust me when I say it will save you hours of time spent in vain. London, 04 Oct 2023, Members: 1,095 + VAT Putting the lead in the middle of the series-connected switches half-splits the circuit. Contact us if you have any questions about our training courses. Reject it afterwards at the first opportunity if it clearly is not relevant. Moreover, the necessary alarms can be triggered and fault diagnosis can be conducted, so the operator/technician can take appropriate action. Tell us your team's CPD needs and we'll come to you with a specialised training programme, customised for your engineering sector. In general, hardware-based fault diagnosis methods are broadly classified into hardware redundancy, voting techniques, special hardware, limit checking and frequency analysis. All professional electricians own one of these tools. This could be done with the power locked out using a simple continuity test. These steps include collecting evidence, analyzing evidence, locating faults, determining and removing causes, rectifying faults and running a systems check. Example 1: You're working on a CNC machine tool with X, Y, and Z-axis drives. We can customise any of our courses and deliver them in-house, After that, the same parameters are retrieved continuously and correlated with the healthy signature to capture the deviation through a statistical analysis interface pattern recognition done through machine learning or an artificial neural network. Locate the Fault. This is because the processes of detecting and localizing the fault are happening at basically the same time, both done by the Fault Detection and Isolation (FDI) algorithm. Robin Pain was originally trained to service colour TV, and has worked as an industrial fault finder for . Terms & conditions of booking IMechE training. 7 Steps to Electrical Fault Finding Turn all circuit breakers off. Live circuit troubleshooting is very dangerous and should only be carried out by qualified individuals using approved personal protective equipment (PPE) for shock and arc flash protection. Turn all switches off again. Solid-state electronic AC motor drives are becoming more Rectification of the Fault. This may occur due to misalignment of the shaft and damaged bearing. OJ QJ ^J h! In some applications, fault detection and isolation go hand in hand; they can, of course, be separate modules of the process. In the early days, equipment maintenance was restricted to repairing faulty assets and performing basic routine maintenance based on rigid time intervals. Why does MCP use a logical approach to fault finding? Fault diagnosis is an important part of the condition monitoring process, allowing operators to not only detect mechanical irregularities buy also pinpoint the root cause of the issue and carry out repairs accordingly. Design extra equipment into a new plant for problem analysis. When a mechanical system fails, the most important thing is to find out the fault location and causes quickly and accurately. Observe the system running, if you consider it safe to do so. Analyse the reading, 3. Lewellyn is president of Lewellyn Technology, Inc., Linton, Ind. 3 The type of fault finding techniques or procedures, diagnostic aids and equipment could include: 3.1 Function testing 3.2 Comparison diagnosis This mindset also introduces additional problems into the mix, which can make troubleshooting efforts even more difficult. Other faults may include improper operating voltage, mechanical failure of components, and excessive heating or corrosion. We use cookies to make parts of our website work, and to improve your visitor experience. > J L I q` 0 bjbjqPqP 8( : : Z ^ @ @ @ @ ( ( ( ( $ L , 2 2 1( 1( 1( 42 62 62 62 62 62 62 $ 3 h O6 f Z2 1( % 1( 1( 1( Z2 @ @ o2 * * * 1( F @ 42 * 1( 42 * * 0 h 1 x $ ( w( p \1 2 2 0 2 l1 X 6 ( 6 1 6 1 T 1( 1( * 1( 1( 1( 1( 1( Z2 Z2 * 1( 1( 1( 2 1( 1( 1( 1( D ( ( @ @ @ @ @ @ Six-point Technique Six point technique Visual examination Examine gather and analyse visual evidence of the plant or process that isnt operating or functioning correctly. 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