This set of 3 posters visually displays stepbystep oil sampling procedures for inservice lubricants and hydraulics. Page 1 of 8 reference sp0504r01 ver 1 reference owner. To detect such problems, an oil sample is filtered and the particles are analyzed by atomic. Let the oil circulate for about 30 minutes before sampling.
Adjust hose connection to start or stop sampling 8. This sampling method uses a vacuum extraction pump to sample nonpressurized systems. The procedures described in this practice are also applicable to sampling liquefied petroleum gases and chemicals. When deciding on a sampling location, the following rules need to. Practice procedure of transformer oil sampling iec 60475 procedure of oil sampling in aluminum bottle the aluminum bottle is used for oil analysis in general and for analysis of compounds which are sensitive to light such as peroxide and furfural. Standard practice for manual sampling of petroleum and petroleum products1 this standard is issued under the. Make sure that the hose from the transformer is made of pvc, new, and clean. To ensure good data density and minimum data disturbance in oil sampling, the sampling procedure, sampling device and sampling location should be considered. A number in parentheses indicates the year of last reapproval. An oil sampling kit for pulling lubricant samples for used oil analysis includes a vacuum oil sampling pump, tubing, probe, oil sample bottles and purge bottle. A poorly drawn or contaminated sample can invalidate the test results or even lead to a misdiagnosis. Oil condition and dissolved gas analysis to be noticed at sampling. There are several sampling methods used in the industry.
Once a suitable sampling point with a 50 mm diameter valve has been selected, modify to fit an adapter. The collection of transformer oil samples according to the following procedure for d. Transformer oil testing by robert turcotte, manager, electrical loss control the hartford steam boiler inspection and insurance company the value of transformer oil testing transformer oil testing is a proven loss prevention technique which should be a part. For this sampling method, variations can sometimes be seen at different. There are two types of metalin oil tests commonly done on insulating oil. If this is not the case, automatic sampling is the recommended procedure since the continuous or repetitive extraction of small samples from a pipeline ensures that any changes in the bulk contents are reflected in the collected sample. Establishing an oil analysis strategy is a fundamentally identical process whatever the industry. The procedure by which a sample is drawn is critical to the success of oil analysis. These practices apply to liquids having a viscosity of less than 6. The basics of used oil sampling machinery lubrication. Here are stepby step instructions for sampling lube oil and hydraulic fluids correctly. Resampling requirements incur labor and financialcosts. The procedure for sampling bituminous materials is described in practice d140.
Standard guide for sampling, test methods, and speci. Oil sampling is a procedure for collecting a volume of fluid from lubricated or hydraulic machinery for the purpose of oil analysis. Page 2 of 8 reference sp0504r01 ver 1 reference owner. Oil sampling and analysis north vancouver facility we are pleased to submit the insulating fluid report and test sheets for the three 3 transformers and one 1 ocb located at the north vancouver facility. Oil sampling techenomics international mayfield east, nsw, 2304. Transformer chemistry servicestcs po box 1265, westville 3630. The data generated from an oil sample is only as good as the sample itself. Procedures for drawing transformer oil samples general sampling electrical insulating oil for laboratory analysis requires care to ensure that the sample is representative of the product being sampled. This course covers the basics of automatic and manual sampling of water, oil and natural gas for the determination of the chemical composition and heating values. Transformer oil reservoir must be under positive pressure. Much like collecting forensic evidence at a crime scene, when collecting an oil sample, it is important to ensure that procedures are used to minimize disturbance of the sample during and after the sampling process.
Equipment for clean accurate sampling of oil, water, diesel, gasoline and many other fluids. Each poster includes a list of required equipment necessary to follow the procedure. Establishing effective oil sampling frequencies martin williamson. Oil sampling techenomics international mayfield east. Likewise, it is not uncommon to get oil analysis results that look good while in fact, multiple problems exist with the oil or machine.
To achieve this, some sampling systems either bleed gas continually to the atmosphere, or to a low pressure source, ensuring the probe is purged before the sampling cycle begins. Pumped cooling systems are susceptible to bearing wear, which when excessive can create metal particles which are harmful to the insulation system. Department of the interior oil pollution 15080qbj 1269 december 1969. Transformer chemistry servicestcs po box 1265, westville.
Are your lubrication technicians using documented oil sampling procedures. Start the oil pumps of the cooling system, if applicable. Sampling of the transformers correctly is vital to ensuring an accurate oil result, the result is only as good as the sample provided. Spot sampling was the primary method of acquiring a sample for analysis until the early 1970s. Without a representative sample, further oil analysis endeavors are futile. Standard practice for manual sampling of petroleum and. The sample must be representative of the oil in the equipment, which means cleanliness extremely important. Proper sampling techniques the way a sample is collected.
Establish consistent oil sampling procedures to ensure repeatability and accuracy of oil analysis results. Nov 11, 20 use the lt sampling tube from checkfluid to get an oil sample from the active zone in a gearbox or reservoir. Must i test an oil sample to assure that it contains less that 0. Fluid analysis and condition monitoring program parker hannifin. Practice d4306 provides guidance on sample containers and preparation for sampling aviation fuel.
Leak management clean up any oil that may have spilled during the sample process. Transformers oil sampling the comprehensive transformer. Use the lt sampling tube from checkfluid to get an oil sample from the active zone in a gearbox or reservoir. Manual methods of pipeline sampling are adequate for homogeneous liquids whose composition and quality do not significantly vary with time. To obtain a fluid sample that is representative of the actual condition of the fluid in the system in terms of cleanliness, dryness, additives, and the presence of wear particles being generated by the fluid wetted parts. Before attempting to draw the sample identify the type of cooling liquid in the transformer. Sampling of transformer oil sampling point the oil sample should preferably be taken at a point where the oil is normally in circulation e. Acronyms and abbreviations a air ana selfcooled, nonventilated kw kilowatt ansi american national standards ieee institute of electrical and institute electronic engineers cegb central electric generating mdw moisture by dry weight board mg milligram cfm cubic feet per minute mva megavoltamps ch 4 methane nd not detected c 2 h 2 acetylene n 2 nitrogen. Transformer oil analysis testing service for monitoring the condition of transformer oils routine testing of transformer insulating oil is an essential maintenance function that ensures a safe working environment and helps eliminate the possibility of disrupted production resulting from a transformer failure or explosion.
Standard practices for sampling electrical insulating liquids. In order that the sample shall be as representative as possible it is essential to ensure. As previously stated, the primary objectives for oil sampling are validity and repeatability. Maximize data density minimize data disturbance ensure best practice oil sampling train your staff to sample oil properly for protection, each procedure is enclosed in its own sheet protector. Job safety analysis power transformer testing check this is the latest process zone version before use. Safely dispose the oil at the end of the work or store it in another sealed container to be disposed according to environmental standards. Understanding our goal when taking oil samples helps us understand why proper sampling is vital. Astm d4057 19 standard practice for manual sampling of. Spot sampling while there are several methods for spot sampling natural gas, two common methods in use today are the fill and purge method detailed in gpa216686 section 7. Taking oil sample from power transformers dissolved gases astm d 3612, iec 60567, dissolved water astm d 1533, iec 60814 the following is one of the procedures to collect transformer oil sample. There are two primary goals in obtaining a representative oil sample. Gray transformer chemistry services introduction the fault free operation of power transformers is a factor of major economic importance and safety in power supply utilities and.
Oil testing capabilities doble engineering company. This sampling method uses a vacuum extraction pump to sample non pressurized systems. Neil dwyer, manager technical services ergon energy corporation limited abn 50 087 646 062 ergon energy queensland pty ltd abn 11 121 177 802 key tools and equipment. It has been a few years since the publication of the first edition of spectro scientifics inservice oil analysis handbook. Uspi nh3 sample probe sampling procedures figure 1.
The 1l oil jar used must be opaque or shipped in a cardboard box so as not to allow daylight to alter the sample. However, this leads to the perception that the implementation is a straightforward, paintbynumbers exercise using default values. Troyer all of our sophisticated oil analysis tools, techniques, and diagnostic processes are meaningless if the oil sample fails to effectively represent. This video shows how to activate the valve using a slf4 probe and vacuum. A sampling kit for drawing representative oil samples from the cmps included oil sampling valve. Failure to follow the recommendations in this chapter will make the oil analysis program cost more time and money and lower its effectiveness.
Sampling procedures build solid foundation for oil analysis success. Product information sampling for oil condition test and dissolved. Basics, maintenance, and diagnostics vii contents continued page 4. Recommended sampling procedures us petrolon industrial. In order for an oil sample to offer valid data it must come from a correct location. Remove shield from outlet sampling point 6 of a transformer. When collecting an oil sample, it is highly important to make sure that procedures are used to minimize sample disturbance during and after the sampling process. Transformer oil sampling abbs service engineers have been trained in the strict routines needed to obtain a clean sample to bs 5263 just as a blood test provides a doctor with a wealth of information about the health of a patient, a sample of transformer oil, taken correctly, can tell service engineers a great deal about the condition of a. You must know the concentration at the time of disposal in. The greatest hindrance to a successful oil analysis program is improper oil sampling procedures. Slightly loosen protector nut enough to allow a small stream of oil. Oil sampling is a method of collecting a volume of fluid from lubricated or hydraulic machinery for the purpose of oil analysis.
Samples are normally drawn from a drain valve or sampling cock, and this must be cleaned both inside and out before the sample is taken to ensure dirt does not fall into the sampling container. Our original goal was to compile a comprehensive reference book of common inservice oil analysis techniques to help readers understand and choose the right technique and. Potential sources of interference what to watch out for when sampling to avoid potential problems with the quality of the sample. At abb we have recently upgraded our sampling procedure to use the tfss turbulent flush sampling system. In general, use this method for geared compartments. In any sampling procedure, always begin by flushing the sampling pathway with approximately 5 to 10 times the volume of the pathway. If a bubble appears in a sample within a few minutes of sampling, the bubble considered as belonging to the sample the air was surely trapped in oil and should not be removed. For best results, take sample while fuel is flowing plug downstream sampling from clean solutions single or dual heads parts how to take representative oil or fuel samples p573415 p563224 p563251 indicator port adapter assembly downstream sae minimess sample port to use with p573415 mini. A detailed list of everything you need to take with you when you sample using the procedure. Good oil analysis starts with good sampling practices. Oil sampling pumps, sampling bottles, tubing and complete kits for sampling. Label this point as the oil sampling point, so that all future samples will be taken from this point. All maintenance personnel should follow the same procedure for sampling, sample from the same location, and sample at the set frequency.
The critical first step to successful oil analysis is to pull a representative oil sample using correct and accurate oil sampling tools and techniques. The basics of used oil sampling by jim fitch and drew troyer, noria corporation proper oil sampling is critical to an effective oil analysis program. Sampling procedures should be documented and followed uniformly by all. Dissolved gases astm d 3612, iec 60567, dissolved water astm d 1533, iec 60814 the following is one of the procedures to collect transformer oil sample. Establish consistent sampling procedure and location. Sampling procedure stepbystep instructions detailing exactly how to extract a quality oil sample.
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