Videos uploaded by user “SDMyers”
Moisture in transformers - Part 1
Moisture in transformer dielectric fluid is a major problem which can mean premature and/or sudden failure of the transformer. In part 1 of this series, we introduce the topic and discuss solutions, including our own DryMax online dryer solution.
Views: 7732 SDMyers
Why is liquid level important in a transformer?
Transformer fluids provide both dielectric strength and cooling. As the temperature of he transformer goes up, that fluid expands. As the temperature of the oil goes down, it contracts. We measure liquid levels with an installed level gauge. How you interpret the data from the gauge and how you cross reference that information with the oil temperature can tell you if you need to top up your transformer with oil. Bob Rasor explains in detail.
Views: 2575 SDMyers
What is the purpose of dielectric fluid in a transformer?
Andy Shkolnik, Technical Support Scientist as SDMyers, explains the purpose of dielectric fluid in transformers. Dielectric fluid has four functions in a transformer: 1) To be an electrical insulator to keep electricity flowing between point you don't want it to flow between. 2) To be a heat transfer fluid, to dissipate heat through conduction and convection from the core to the radiator or shell of the transformer. 3) To protect the paper insulation from moisture and oxygen. 4) To act as a diagnostic tool and give insight into potential problems and faults. For more information, visit us at http://sdmyers.com/testing/diagnostic/
Views: 1588 SDMyers
What is furan testing?
Furan testing tells us about the condition of the solid insulation inside a transformer. Traditionally, the only way to find out the condition of paper insulation was during an outage when a physical sample of the paper could be removed and tested. This has always been inconvenient and expensive. Paper insulation is made of long glucose chain molecules which form into other molecules--furans--as they break down. We can test for furan content in oil (in terms of parts per billion) and tell the condition of the paper. Furan testing from an oil sample is much more convenient and much less expensive than taking physical paper samples. For more information on furans and furan testing, visit https://www.sdmyers.com/knowledge-vault/risk-reliability-of-transformers/
Views: 1573 SDMyers
Why power factor a transformer
Mike Horning talks scheduling and best practices for transformer power factor testing. (The power factor test measures the fundamental AC characteristics of the insulation)
Views: 1785 SDMyers
What is DGA testing
DGA testing is one of the diagnostic tests we can run on the dielectric fluid in a power transformer. DGA stands for Dissolved Gas Analysis. Dielectric fluid inevitably contains a profile of trace gases, so every transformer with fluid has a fingerprint of these gases. Once you establish a baseline, you can watch for trends in how the concentration of those gases change over time. Significant changes are indicative of an incipient fault condition. For more information, visit http://sdmyers.com/testing/tests/#test-1525
Views: 1652 SDMyers
What is Dissolved Metals (ICP) analysis?
Jason Dennison, Production manager of Laboratory Analytical Services at SDMyers, explains the dissolved metals analysis. Inductively Coupled Plasma (ICP) is the technology used to detect metal dissolved in transformer oil. We take a fluid sample and run it through the instrument, which has a torch that runs at such a high heat that it burns off organic materials and just leave behind the metals. You can use ICP data to corroborate DGA data and have high confidence of what is happening inside the transformer. More information on ICP here: http://sdmyers.com/portal/understanding-your-test-results/ Dissolved Metals by ICP, Standard Test Method for Determination of Elements in Insulating Oils by Inductively Coupled Plasma Atomic Emission Spectroscopy (ICP-AES, ASTM D7151) Dissolved copper and other metals act as catalysts to promote oxidation and also serve to elevate liquid power factor to unacceptable levels. Dissolved metals in sufficient quantity to promote aging of the oil can be removed by reclamation. Dissolved metals analysis is also useful to help diagnose fault conditions such as severe overheating or arcing/sparking indicated by other tests such as dissolved gas analysis. Dissolved metals analysis is sometimes performed on new fluids to evaluate whether refining or storage practices are resulting in elevated dissolved metals levels being introduced into the system. Since dissolved metals levels are generally measurable with brand new transformers, once energized, and tend to decrease to “none detected” levels before gradually increasing due to aging or jumping due to fault conditions, the recommendation for in-service oil is to baseline test units and then test every few years to evaluate gradual increases in metals. If dissolved metals content is to be used to help identify a transformer fault, the abnormal dissolved gas analysis will trigger a recommendation to perform metals analysis. Standard procedure is to test samples routinely for copper, iron, and aluminum, although many others can be run if conditions indicate a need.
Views: 811 SDMyers
Why perform an SFRA test?
Mike Horning explains why an SFRA test is essential to a Transformer Maintenance program. Mike is a Senior Transformer Advisor and Instructor at SDMyers.
Views: 1810 SDMyers
Why test surge arresters?
Mike Horning explains why it is essential to a test transformer surge arresters. Mike is a Senior Transformer Advisor and Instructor at SDMyers.
Views: 1305 SDMyers
What type of fluids are transformers filled with
Transformers are filled with dielectric fluids, including mineral oil, silicone, natural esters (vegetable oil), synthetic esters, chlorinated fluids, and high-molecular-weight hydrocarbons. Andy Shkolnik provides all the details.
Views: 478 SDMyers
What is the corrosive sulfur issue?
Andy Shkolnik takes a deep dive into the corrosive sulfur issue, exploring solutions ranging from oil replacements to the addition of metal passivator to the oil.
Views: 442 SDMyers
What is the degree of polymerization test
The solid insulation in a transformer is made of paper, which can be damaged by moisture or heat or acids. Andy Shkolnik explains what happens to cellulose as it weakens, and how the degree of polymerization test can quantify the damage done.
Views: 1847 SDMyers
What is the best way to dry out a wet transformer
Bob Rasor explains the three basic ways to dry a transformer: 1) Package it up and send it to a winding facility where it can be dried out. 2) Perform a vacuum dryout in the field, which is effective but puts comes with 7-10 days downtime. 3) Use an online dryer, like DryMax. For more information on Moisture Reduction Services from SDMyers, visit http://sdmyers.com/maintenance/equipment/moisture-reduction/
Views: 668 SDMyers
What is the corrosive sulfur test?
Andy Shkolnik, Technical Support Scientist at SDMyers, explains the corrosive sulfur test. Corrosive sulfur is a chemical property of the oil, and the test for it is either pass or fail. While sulfur content relates to the composition of the oil, the presence or absence of corrosive sulfur in new oil is more appropriately considered to be a test for purity – properly refined new transformer oil should pass the corrosive sulfur test. For information on this test and to see a list of the other test packages we offer, go to https://www.sdmyers.com or call us on 330 630 7000
Views: 527 SDMyers
DryMax by SDMyers
There is more than one way to dry out a wet transformer, but an online passive dryer like DryMax is the best way to keep your transformer humming as it dries.
Views: 342 SDMyers
What is Karl Fischer testing
The Karl Fischer test is great for transformers because of the level of sensitivity--it is good down to about 10 micrograms of water in a fluid. We want to keep transformers dry because moisture is a bad actor... it can cause accelerated oxidation and shorten the lifespan of a transformer. SDMyers performs the Karl Fischer test (along with a host of others when needed) on transformer oil for its customers. Find out more about testing packages at https://www.sdmyers.com/testing/tests/
Views: 604 SDMyers
What is liquid power factor testing?
This analytical test is specific to dielectric fluids in an alternating current field. It measures how much energy dissipates in the fluid. What affects the numbers in a liquid power factor test is contamination, oxidation, and moisture--three of the things we associate with overall transformer health. It's a great tool to substantiate other tests that indicate those things. For more information visit http://sdmyers.com/portal/understanding-your-test-results/
Views: 252 SDMyers
How do you remove moisture from a transformer?
Bob Rasor, Director of Transformer Services at SDMyers, explores the damage done by moisture and the methods transformer owners use to get rid of it. The reliable life of a transformer is so very connected to the reliable life of the paper insulation. Liquid-filled transformers have an enemy in oxidation, and you have to control moisture to mitigate it. There are three basic ways: - Take it out of service and send it to a shop - If it is vacuum rated, you can do a vacuum dryout - Use an online dryer For more information on Moisture Reduction from SDMyers, visit http://sdmyers.com/maintenance/equipment/moisture-reduction/
Views: 921 SDMyers
SDMyers Load Tap Changer Maintenance & Service
A Load Tap Changer (LTC) failure can be catastrophic to the rest of the system. We estimate that about 40 percent of LTC-equipped transformer failures are caused by failure of the LTC. With regular oil testing and analysis, you’ll know when it is time to calibrate or replace wear parts and perform maintenance before they become a legitimate threat to your operation. The moving parts of a load tap changer make it far more susceptible to routine wear and tear than passive components. When an LTC fails, it can take the transformer with it. Protect this vulnerable component of your electrical system with regular inspection and testing. https://www.sdmyers.com/transformer-services/maintenance/field-service/load-tap-changer/
Views: 283 SDMyers
SDMyers - What we do
SDMyers introduces Intelligent Transformer Management... a philosophy that governs everything we do to protect and preserve the life of your transformers. For more information visit www.sdmyers.com
Views: 236 SDMyers
Why power factor bushings
Bushings can fail, and they can often fail violently--sometimes violently enough to take the transformer with it. Mike Horning explains how power factor testing can detect problems before that damage is done. There's really no other practical way to test a bushing other than a power factor test. Most bushings rated 15 KvA or higher offer access to the insulation for testing purposes. If you find a problem? Get it out of service, or replaced, before it fails.
Views: 524 SDMyers
Why perform an infrared scan during routine maintenance?
When an infrared (IR) scan is performed at the same time as a visual inspection and oil sampling/testing, it provides another valuable data point, affording a more complete picture of the overall health of the transformer. For more information on IR scanning, visit http://sdmyers.com/testing/sampling/
Views: 137 SDMyers
How can you tell if a transformer is wet?
There are a couple of different ways to determine if a transformer is wet. The traditional way is to pull a fluid sample and send it to a lab for a Karl Fischer Titration test, which will tell you the water content in the fluid in parts per million. When analyzed alongside other data from the transformer (especially temperature) it is possible to calculate the percent saturation--basically the water in the fluid at different temperatures. For more information on oil testing packages and the Karl Fischer test visit http://sdmyers.com/testing/tests/
Views: 331 SDMyers
Can you estimate or predict the lifespan of a transformer
The short answer is that there really is no perfect prediction or estimate of how long a transformer should live. At SDMyers, we say that, if you take a proactive approach to maintenance, there's no reason a transformer can't have fifty years of life. The good news is that we can get in the ballpark using available maintenance data. For more information visit: http://sdmyers.com/about/maxlife/
Views: 208 SDMyers
What is inhibitor testing
When you purchase mineral oil to fill a transformer you can buy Type 1 or Type 2 fluid. These are the same except that Type 2 contains inhibitor, an additive that prevents/consumes the acids produced by the oxidation process. It's sacrificial in nature; as acids form they consume the inhibitor. We watch for trends in inhibitor content. if we see a decrease in the percent weight of the inhibitor, then that is strong evidence that something is happening inside the transformer. The test is, essentially, an early warning signal. Find more information about inhibitor testing at http://sdmyers.com/testing/tests/#test-1528 and reinhibiting at https://www.sdmyers.com/maintenance/field-service/reinhibiting/
Views: 258 SDMyers
What are the benefits of remote fault-gas monitoring?
Transformers are aging at failing at an ever-increasing rate. Every transformer reaches the end of its life eventually, but it is possible to extend the reliable life. Oil testing helps diagnose problems and can be done once a year, twice a year, four times a year... the intensity of testing increases if a problem is discovered. One way to stay away from problems is to use an online fault-gas monitor. A hydrogen monitor, particularly, makes an excellent "check engine light" early warning indicator. Online monitors help you stay on top of your transformer's health and make more informed decisions to ultimately keep your transformer running reliably for longer. For more information visit http://sdmyers.com/guardian-monitoring/
Views: 121 SDMyers
Let's compare apples to transformers
Let's compare apples to transformers. Oxidization is bad. It ruins apples and ages transformers. Oxidization byproducts ruin the paper insulation, which is a major threat to your transformer. SDMyers reinhibits transformers to stop the damage, protecting the paper for a longer life. For more information, contact SDMyers today 330.630.700 www.sdmyers.com
Views: 229 SDMyers
Transformer Dashboard: Comparison Tool
For more information on the features of Transformer Dashboard, visit us online: https://www.sdmyers.com/transformer-services/testing-monitoring/transformer-dashboard/
Views: 52 SDMyers
Health Center on Transformer Dashboard
Health Center on Transformer Dashboard does more than show you the condition of all your transformers in one place—it helps you to prioritize next steps and make informed maintenance decisions. The new Health Center allows you to: - Audit the specific level of risk for any of the transformers in your fleet - Prioritize your maintenance allocations with greater judgment - Ensure your most critical transformers are receiving the attention they deserve - Economize on the amount of time that is associated with interpreting your data In essence, the Health Center provides you with a quick summary of your transformers, which makes your own reporting that much easier and more efficient. This feature alone will give you an additional measure of clarity and confidence in your business communications. Transformer Dashboard: https://bit.ly/2sZEv6X Health Center: https://bit.ly/2l3DZ4e For more information on Health Center, Transformer Dashboard, and all of our equipment, tools, and services, visit SDMyers at https://www.SDMyers.com
Views: 190 SDMyers
Transformer Dashboard: Health Center
If your Chemical Test Results or Visual Inspection data are classified as unacceptable, it does not necessarily mean your equipment is at risk of failure. But it will affect your transformer reliability plan. What should you do next? Health Center, part of Transformer Dashboard Premium, answers that question – and Empowers you to take control of your maintenance data. It helps you understand your test results by sorting your transformers into distinct health categories, so you can see instantly what equipment needs your immediate attention. Get a risk overview of your equipment too, and direct access to the knowledge you need to keep your system healthy. Health Center combines algorithms with expert analysis from transformer specialists to help sort your equipment into 4 categories: Satisfactory –testing indicates acceptable operating condition, and no action beyond routine testing. Watch – for transformers in your fleet that require more frequent testing intervals to keep track of potential issues. Service – for results that indicate a fault that requires repairs or servicing to remain reliable in the long term. And At Risk – where conditions exist that could lead to a serious fault or failure. With Health Center, you can Manage the condition at your entire fleet at once, assess the level of risk for any one of your transformers, focus on critical equipment, and save time when it comes to interpreting data. As always, transformer experts are available anytime to consult with you on next steps for your equipment. Find out more information on Transformer Dashboard here: https://www.sdmyers.com/transformer-services/testing-monitoring/transformer-dashboard/
Views: 27 SDMyers
Electric Power IQ from SDMyers: Customized on-site courses
We’re bringing our industry-leading transformer maintenance and management training right to your doorstep. From classes that cover the fundamentals of maintenance right through to advanced program management courses, we have the content you need to fill your knowledge gaps and boost the Electric Power IQ of everyone at your organization. Customized, personalized, and relevant. Bring the industry’s best customized transformer maintenance training to your place in 2019: https://www.sdmyers.com/training/course-catalog/custom-on-site/ Find out more about customized courses here, and get in touch with Traci Hopkins [email protected] or by calling 330.630.7000 x. 3485 for more information about on-site courses.
Views: 186 SDMyers
Why is it important for a testing facility to implement ISO 17025?
Using the standardization you can streamline processes and continually improve. Standardization also means consistency. For more information visit https://www.sdmyers.com/testing/tests/
Views: 201 SDMyers
Transformer Dashboard: Guardian Monitoring
The online monitoring functionality on Transformer Dashboard allows users to view graphs, diagnostic tools, and view “at-a-glance” recommendations. The simple user interface accepts from a variety of different monitors, including our G1. You can view your data in several ways, including: “at-a-glance” recommendations for quick actionable advice, View graphs to see trends, And diagnostic tools, for advanced diagnostics Transformer Dashboard Cloud-hosted so you can access your data form anywhere with an internet connection. Using Transformer Dashboard simplifies transformer management with online software solution. This means that you don’t need to maintain multiple software solutions to manage test data and monitoring data, and the software is continually updated and improved. You’ll save time by using only one data management software. All levels of an organization can have permissions to view transformer maintenance data, and you’ll have one cohesive story about the operating conditions through sampling and monitoring. Just another way SDMyers helps you increase the reliability of your electric system. Check out https://www.sdmyers.com/transformer-services/testing-monitoring/transformer-dashboard/ for more information.
Views: 27 SDMyers
Transformer Dashboard: Maintenance History
Under the Equipment tab, in the Equipment/Summary view for a given piece of equipment, you have the ability to enter maintenance data on your equipment. You can select a maintenance item you performed and add commentary, such as a custom message or note the service provider. This not only help you document and keep all your equipment data in one place, it also informs our diagnostic staff so that the next time they see your data they can give you the most appropriate recommendation. Simply select the dropdown menu, select “Add Field Service,” make your note, and save. Just another way SDMyers helps you increase the reliability of your electric system. https://www.sdmyers.com/transformer-services/testing-monitoring/transformer-dashboard/ Transformer Dashboard: Nameplate Changes Transformer Dashboard helps you organize your equipment data simply and efficiently. When naming conventions change (or when data is incorrect) it’s difficult to identify, track, or maintain your assets. On transformer Dashboard you can now make changes to the nameplate information. Select the edit pencil in the nameplate section and edit any major values. Just another way SDMyers helps you increase the reliability of your electric system. More information: https://www.sdmyers.com/transformer-services/testing-monitoring/transformer-dashboard/
Views: 30 SDMyers
What is degassing/degasification?
SDMyers can help prevent potential hazards and downtime caused the the buildup of combustible gases in your transformers. When test results indicate the presence of combustible gases in your transformer oil, degassing can remove them and restore your unit to its optimal performance level. Degassing can be performed on an energized transformer so you can eliminate the need to shut down during maintenance. The process involves pulling oil from the transformer to the degasification unit where it is heated, vacuum degassed and filtered. The transformer oil purification process is complete when oil quality meets OEM, IEEE, IEC or other applicable standards. Find out more about this service here: https://www.sdmyers.com/transformer-services/maintenance/field-service/degassing-vacuum-processing/ Visit SDMyers and learn more about Intelligent Transformer Management: https://www.sdmyers.com/
Views: 121 SDMyers
Transformer Management 1
Electric Power IQ Training: Transformer Management 1 and Transformer Management 1 Plus at our Tallmadge, Ohio facility.
Views: 62 SDMyers
What is hot oil cleaning?
Bob Rasor, Director of Transformer Services at SDMyers, explains how hot oil cleaning works, the benefits associated with the process, and the long-term effects of using the method to increase transformer reliability.
Views: 211 SDMyers
NFPA Standards for Safe Cabinet Transformer Oil Sampling
Read the SDMyers Arc Flash Safety Protocol here for more information on NFPA 70E : https://www.sdmyers.com/transformer-services/testing-monitoring/inspection-sampling/arc-flash-safety-protocol/ De-energize Your System—Powering down your cabinet transformer provides the highest level of protection. Of course, it also comes with unplanned downtime, inherent safety concerns, and significant startup costs. Sample Externally—SDMyers offers an external sampling device that attaches to your transformer and enables your technician to also safely complete required inspections, including fluid levels, oil temperature, leak viewing and more. Use Personal Protective Equipment (PPE)—Although PPE is the least effective form of protection, it can be the difference between life and death. The NFPA requires PPE that exceeds the incident energy (the amount of energy released during an arc flash.) No transformer owner wants to de-energize their electrical system and be inconvenienced with downtime. Sometimes, shutting down isn't even possible.If you elect not to de-energize, NFPA 70E requires that we have an Energized Electrical Work Permit. A justification of why work on the unit must be performed in an energized condition must be listed on the permit.
Views: 90 SDMyers
Transformer Dashboard: Getting Started
Transformer Dashboard simplifies transformer reliability. It translates technical data into easy to understand insights. This web-based tool gives you secure access to your data anywhere, anytime, allowing you to quickly understand the condition of your equipment so you can act on the information. It all starts with the homepage. The “My Results” section shows you every piece of equipment at your facility or in your fleet, along with a summary of the most recent Chemical, Mechanical, and Electrical data. Color-coded icons make it easy to spot test results that need your immediate attention, such as “unacceptable” or “questionable.” Next to the breakdown of the test results are summary recommendations for each piece of equipment. Click “requests” in the “Action” column for a consultation with one of our transformer specialists on how to properly resolve the issue or if you have questions. Immediate action items are shown at the top of the list, or you can sort this information however you wish. Ready to talk? Use the “Live Chat” icon on the bottom right hand corner for immediate assistance, select the “Contact Us” form in the banner to get in touch, or find the “Help” section in the Account Settings. Transformer Dashboard helps you maintain a reliable electric system by empowering you with the information and insight you need to make smart decisions as quickly as possible. For more information on Transformer Dashboard, visit https://www.sdmyers.com/transformer-services/testing-monitoring/transformer-dashboard/
Views: 281 SDMyers
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A message from Alan Ross...
Tell us who we should call: http://tinyurl.com/ycvv25uo or Have us call you directly: http://sdmyers.com/contact-sdmyers/ or Call us today: on 330 630 7000.
Views: 71 SDMyers
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Transformer Dashboard: Premium
Transformer Dashboard Premium is a service that combines ALL the powerful analytic and diagnostic tools of the Dashboard in one place. This service includes Health Center, the Comparison Tool, Data Export capability, and Fleet View functionality to ensure that you have every tool you need to make wise decisions for equipment fleet at a discounted bundle rate. Upgrade to TD Premium today to access these tools. For more information on the features of Transformer Dashboard, visit us online: https://www.sdmyers.com/transformer-services/testing-monitoring/transformer-dashboard/
Views: 124 SDMyers
Transformer Dashboard: Criticality & Status
Ever wanted to identify your most important assets from your less critical ones? Now you can edit the status of each piece of equipment in either the “Set Attributes” section or directly on the “Equipment Summary” page. Identify the criticality appropriately to help you prioritize your actionable items. You can also identify your equipment’s status. If you take a unit out of service, move a unit from a spare part to being active, just notate the status to keep track of each unit. This is particularly helpful when used to sort and filter in the Custom Reports tool. Check out https://www.sdmyers.com/transformer-services/testing-monitoring/transformer-dashboard/ for more information.
Views: 20 SDMyers
Transformer Dashboard: Custom Reports
One of the most beneficial tools of Transformer Dashboard is the ability to build custom reports. Here you can filter by equipment attributes and recommendation codes to sort custom lists of equipment you can work from. For example, you can build a list of all “critical” pieces of equipment that require a specific service, such as a Hot Oil Clean. Then you can request assistance or a consultation with a Transformer Specialist right from there with the Take Action column. This is a powerful tool that can dramatically decrease the amount of time you spend flipping through test reports and evaluating service recommendations. Just another way SDMyers helps you increase the reliability of your electric system. Check out https://www.sdmyers.com/transformer-services/testing-monitoring/transformer-dashboard/ for more information.
Views: 23 SDMyers
Transformer Dashboard: Take Action
The new TAKE ACTION feature on Transformer Dashboard allows you to see which units we recommend some type of follow up services for, and allows you to request a consultation to resolve these items. The red “Fix” button opens up a window that will walk you through submitting the consultation request. First, identify the piece of equipment. Then you can select a time where one of our Transformer Advisors will call you to discuss best possible next steps. Just another way we help you to quickly understand the condition of your equipment. See https://www.sdmyers.com/transformer-services/testing-monitoring/transformer-dashboard/ for more information.
Views: 77 SDMyers
Transformer Dashboard: Nameplate Changes
Transformer Dashboard helps you organize your equipment data simply and efficiently. When naming conventions change (or when data is incorrect) it’s difficult to identify, track, or maintain your assets. On transformer Dashboard you can now make changes to the nameplate information. Select the edit pencil in the nameplate section and edit any major values. Just another way SDMyers helps you increase the reliability of your electric system. More information: https://www.sdmyers.com/transformer-services/testing-monitoring/transformer-dashboard/
Views: 46 SDMyers