transformer repair and maintenance


Gauge Replacement and Calibration With more than 50 years experience in the industry, Prolec GE is an important player in the Americas with business units in Mexico, the United States, and Brazil. PSS will also retrofit your aging transformers with new ones designed to fit within your existing configuration. Covering you both for routine repair and reconditioning, and when critical equipment breaks down or needs replacement, it helps to have industry experts on your side. Tel: +32(0)3 541 7140. When the faulty part is found and processed, it can be re-wound according to the original winding method, and after the winding and repairing, comprehensive testing and inspection can be carried out. RMS Energy technicians are trained and experienced for transformer maintenance and repairs on a wide variety of models and designs. Industrial Tests, Inc Western Utilities Transformer Service, a RESA Power companyAddress: 1010 N. Plaza Dr., Visalia, CA 93291-9473(559) 651-0141info.visalia@resapower.com. We are always looking for ambitious candidates seeking a direct hand in building the next generation of power. Transformer Painting The maintenance of the transformer is the daily work that the electrician operator and the electrician's operation and maintenance personnel must perform in order to maintain the normal technical state of the transformer and prolong the service life. Whatever your Transformer Maintenance needs may be, contact us and we will make sure that your equipment is treated with the care and safety requirements that it deserves. Rocklin , CA 95677, Phone 916-632-8378 Contact our Service Department and get the lasting solutions you need, when you need them. Combining technical expertise with high quality suppliers, Waukesha Service provides replacement radiator and/or cooler packages ready to install. The assessment is the foundation for a maintenance plan in which the condition and priority of each transformer are decisive for the maintenance frequency and needs. Sunbelt Solomon takes pride in being a one-stop source for all of your service and repair needs. In addition, the overload capacity of the transformer should be determined based on the temperature rise of the transformer and the manufacturer's specifications. 2013 -2020 Copyright by Industrial Tests, Inc. All rights reserved. Fax 916-632-0300 When refilling oil in transformers, its important to keep cost in mind as well as impact on the environment. The customer needs to provide information on the bushing requiring replacement, or an Industrial Tests service technician/engineer can make a site visit to acquire any needed dimensions and/or equipment information. Hence this oil has to be periodically tested to ascertain its basic electrical properties, and make sure it is suitable for further use or if necessary actions need to be implemented, like filtration and regeneration. With a vast library of historical information on many brands of transformers besides our own, including but not limited to RTE-ASEA, ASEA Electric, ABB Electric, Magnetek, Federal Pacific, North American, Hevi-Duty and General Signal, we are properly equipped to move forward quickly with virtually any transformer repair job from radiator, cooler, bushing and gauge replacement to oil and nitrogen leak repairs and almost everything in between! We are proud to say that our TRIR (total recorded injury rate) in 2020 was 1/100, a key industry indicator. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Oil sampling + analysis (Oil quality, PCB, furan detection, moist level, ), Electrical measurements (Insulation resistance, Winding resistance, Transformer Turn Ratios, SFRA-Sweep Frequency Response Analysis, IDAX- Tg, ), Dehumidifying, degassing and filtering of oil using steamliner (up to 7.000 l/h), Cleaning of contacts and adjusting torque, Maintenance of tank and conservator: corrosion removal, welding of leaks and repainting, Repair of hair cracks and corona traces on cast resintransformers, Changing/repairing of tap changers and insulators. Contact the nationwide specialists at RMS Energy. Transformeroil and other insulating liquids suffer from electrical and mechanical stresses while a transformer is in operation. Pull the silicon steel sheets one by one. Sunbelt Solomon makes renting simple and convenient for customers. Buchholz Relay- check to see if there are any gases found in the Buchholz. The product undergoes final electrical testing. Our support to the end-users after the warranty period has enabled the manufacturers to maintain a good relationship with their customers. Any electrical system or power facility with a transformer must seek regular and reliable large power transformer and substation equipment field service. All Rights Reserved. ; combining services can minimize costs and transformer downtime. Bushing Replacement Transformers ensure all manner of weather while conducting business for power stations and numerous stakeholders and clients. Fans and Radiators- visually inspect the tops and bottoms of the fans and radiators for signs of damage and to ensure that theyre open. Insulation-resistance tests, winding to winding, and each winding to ground. Transformers that are improperly installed or lack a preventative, long-term maintenance routine can risk failures that lead to excessive downtime and costly repairs. Transformers are often filled with asphalt, wax and other materials. Erection, Energizing and Commissioning of Transformer.- Measuring and Testing of Transformers on Site.- Etc. After taking out the core, first check the appearance of the coil to see that the appearance is not damaged, and then use the insulation resistance meter to check which coil the fault occurred in order to be purposefully disassembled. Emerald Transformer has expert field technicians in multiple locations nationwide, ready to examine your transformers and equipment, diagnose any issues, and perform quality repairs on-site. The period of measurement shall be specified in the site regulations. 800.576.RESA (800.576.7372), For International Sales: The allowable value of the coil insulation resistance is not specified. Site by Smith Media. We have provided electrical solutions to thousands of companies throughout the United States and Canada on both a routine and a 24/7/365 basis for the last 18 years. Suite 1 The ratio of the measured insulation resistance value during the use of the transformer to the value measured before the transformer is put into operation after installation or overhaul is the main basis for judging the insulation state of the transformer during operation. Maintenance Partners nv It adjusts the ratio by changing the number of turns of the high voltage winding of the transformer. There are many types of faults in transformers, but common fault phenomena are not limited to short circuits, open circuits and leakage. Map To Office. ITI will visual and mechanically inspect conservators to ensure proper performance. 2022 Sunbelt Solomon. The product goes through a mandatory final quality control check before shipment. 20. RMS Energy is an electrical engineering, consulting and construction firm centered in Randall, MN, and serving power stations all across the United States. Substation and Large Transformer Field Teardown. Installation packages can include installation drawings, radiators, coolers, pumps, piping, gaskets and hardware or any combination of these items. The measurement of the insulation resistance should be carried out at the same temperature as possible, using the same megohmmeter of the voltage. Oil and nitrogen leaks are a nagging problem found on many power transformers. If gas is found, an oil sample will be taken for further testing. Installation packages can include everythinginstallation drawings, radiators/coolers, pumps, piping, gaskets and hardwareor any combination of these items. Wear and tear on transformers and their components is severe. The main functions are: voltage conversion, current conversion, impedance transformation, isolation, voltage regulation (magnetic saturation transformer) and so on. A trusted provider for over half a century. Temperature Indicators for oil transformers, winding temperature should be about 15 degrees Fahrenheit greater than the top oil temperature. For more information on transformer regasketing, visit this page. It has an installed base in more than 35 countries and employs more than 8,000 people. Leak Repair We serve industrial, commercial and municipal clients in various industries including power stations, power plants, wind and solar, petro-chemicals, manufacturing, hotels, hospitals, municipalities, defense contractors, data centers and many other applications that rely on high power electric equipment. Western Utilities Transformer Service, a RESA Power company, has provided quality service and repair since 1985, our commitment to detail and customer satisfaction has developed strong relationships with most of the US manufacturers of electrical power and distribution equipment. We offer services for distribution and power transformers of all brands, including: Transformers are low maintenance, but not free of maintenance. The unattended transformer shall record the voltage, current and upper oil temperature of the transformer at each periodic inspection. Allows transformers to function at manufacturers standards, Maintenance prevents overheating or arc fault conditions from occurring, NETA certified engineers servicing transformers offer peace of mind, Maintenance for transformers should be taken annually, Cost of repair or replacement is much greater than cost of maintenance, Does not contain petroleum, halogen, silicones, corrosive sulfur or any other harmful chemicals. Due to extreme operating and environmental conditions, leaks do occur at gaskets, fittings, welds and points of physical damage. According to the application, it can be divided into: power transformer and special transformer (electric furnace change, rectification change, power frequency test transformer, voltage regulator, mine change, audio transformer, intermediate frequency transformer, high frequency transformer, impact transformer, instrument transformer, electronic transformer , reactors, transformers, etc.). Our lifecycle management in-service center repair process starts with our logistics team picking up your units for repair at your location to safely transport them to a service center within our national network. (The power should be cut off during adjustment.) Select the service center nearest to you, and click on the icon for more information. Maxima Daya Indonesia has the facilities,skills and expertise to carry out transformer repairs ranging from less than 25 kVA up to 4000 kVA. The device for connecting and switching the position of the tapping tap is called the tap changer. The maximum unbalance current of the transformer low voltage shall not exceed 25% of the rated value; the allowable range of transformer power supply voltage variation is plus or minus 5% of the rated voltage. After completing final quality control testing, your inventory will be safely brought back to you. With an installed base of nearly half a million pieces of equipment worldwide, we are uniquely positioned to deliver unmatched technical support. More important, moisture and oxygen can enter a transformer through a leaking gasket which causes accelerated aging of the insulation and insulation failure. Western Utilities Transformer Serviceis a complete service center and original equipment manufacturers warranty service and repair facility for power transformers and distribution equipment. 2022 Power Substation Services. Whether its warranty repair for transformer manufacturers, or replacing components on older transformers, our expert crews perform internal inspection and repairs on transformers of all sizes. Use tab to navigate through the menu items. No transformer installation is complete without various forms of testing. Oil Analysis Cleaning will be done as needed to ensure that all moving parts in the fans and radiators are not contaminated. The low voltage has no effect on the transformer itself, only reduces some output, but has an impact on the electrical equipment; the voltage increases, the magnetic flux increases, the core is saturated, the core loss increases, and the transformer temperature rises. Some of our services include: Replace fluids (mineral oil, FR3, Luminol). RMS Energy has the skilled, trained and experienced specialists you need for transformer installation. Mojokerto Jawa Timur 61384 Conservator- Indicates oil levels for transformer to ensure that there are no leakages. Waukesha Service has the information, equipment, suppliers, experienced personnel and know-how to perform a long list of repairs onalmost any manufacturers transformer. Transformer oil leaks can be a very costly problem to repair, especially when the leaking oil is able to escape into ground water. Director of International Core Business Center at Jinte Company---Focus onAluminum & Copper Strip Coil of Transformer, Zhejiang Jinte New Material Technology Co., Ltd, To view or add a comment, sign in All components that dont meet our strict quality control standards are repaired or replaced. All transformers are fully tested at rated voltage and load testing can be performed where requested. To view or add a comment, sign in. The second step is to remove the coil. RESA Power specializes in electrical power solutions to ensure safe, efficient, and reliable generation, transmission, and distribution of power. Scope of work can include supplying new or replacement gauges, mounting gauges on tank, running line for temperature probe, modifying tank to add probe well, wiring from the control box to gauges, calibrating the equipment and verifying operation. Because we have well-trained technicians located around the country, were able to send service professionals to your location for on-site troubleshooting, testing, maintenance, and repair. Most leaks are repairable, and Industrial Tests has the ability to find leaks and make repairs. BE 0 475 899 519 Sunbelt Solomon offers a variety of customizable and flexible rental options for substation transformers, switchgear, and other equipment. Industrial Tests, Inc.provides comprehensive Transformer Testing services as part of ourElectrical Testing and Maintenanceservices. Complete electrical testing as defined by IEEE and NETA. of. Some of our resources include experienced personnel; equipment necessary to handle, store oil and vacuum-fill; specialized processes/procedures for all kinds of transformer repairs. 4021 Alvis Court document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); document.getElementById( "ak_js_2" ).setAttribute( "value", ( new Date() ).getTime() ); We use this to understand your geography and delivery location. Waukesha, WI 53186, Prolec GE designs and provides solutions for the generation, transmission, and distribution of electrical energy. In order to reduce our lead times on transformer repairs, particularly on emergency service work, we maintains good stocks of standard materials and accessories. This detects problems at an early stage and can prevent further deterioration. The transformer is a device that uses the principle of electromagnetic induction to change the AC voltage. The most common repairs in the field are transformer leaks, bushing replacement, fuse replacement, oil retrofills, radiator repair, and gauge replacements. Vitshoekstraat 6 Jl. Indonesia, Repair or Replacement of Core, Winding & Support, Replacement of Gasket, Accessories, & Protection Devices, Vacuum Drying, Oil Vacuum Filling & Purifying. Not only that, but our dedication to safety is unmatched. Oil Retrofill Our professional technicians can reduce your downtime and help you overcome any challenges you face with your electrical distribution equipment. Leakages that occur above the transformer oil can allow nitrogen to escape, which causes more frequent nitrogen bottle replacement. Click here to view our current job openings. Comprehensive Services When You Need them Most, Getting the job done right, with quick turnaround time. See our full line of electrical maintenance services. Due to extreme operating and environmental conditions, leaks do occur at gaskets, fittings, welds and points of physical damage. The reasons for these failures can be summarized into three aspects: one is that the design is wrong; the second is that the production quality is poor; the third is that the use conditions exceed the design requirements. Industrial Testscan repaint all of your substation equipmentincluding transformers, circuit breakers, switchgear, regulators, control cabinets and housings, structures, etc; our experience includes everything from pad-mounted transformers through 230kV equipment. Premium equipment installed by professionals and tested for lasting results. It is usually to change the position of the winding tap of the winding to realize the voltage regulation. The main components are the primary coil, the secondary coil, and the iron core (magnetic core). Try our virtual quote tool and answer a few questions to help us better understand your needs. Full test certificates with detailing electrical specifications are available. For fluid-filled products, all seals are replaced, and insulating fluid is replaced. The insulation resistance of the measuring coil should be a megohmmeter of 1000 to 2500 volts. Verify correct secondary voltage, phase to phase and phase to neutral after energization and prior to loading. Headquarters - 400 S. Prairie Ave It can only be used after all the indicators meet the requirements. Verify that cooling fans are operational and that fan motors have correct overcurrent protection to prevent overload. In addition to supplying the parts, our Service Team can field install the equipment for a seamless, hassle-free experience. Maintenance of transformers is an important part of electrical equipment management. With over 100 years of combined experience, Sunbelt Solomon has a history as a market-leading provider to commercial, industrial, and utility customers. Our factory are equipped with a wide variety of winding machines to accommodate the various types of transformer repair we carry out, as well as optimize the delivery time offered. PROLEC-GE WAUKESHA, INC. This field is automatically in filled for you. The thermometer installed on the transformer should be recorded at the same time when patrolling the transformer. The insulation resistance of the coil shall be measured before the transformer is put into operation after installation or maintenance (usually after drying) and after long-term deactivation. Transformers are the single most important part of any power system. Contact the nationwide specialists at RMS Energyin Randall, MN when you need transformer maintenance, repairs or transformer installations for your electrical system. Waukesha Service works with Prolec GE Waukeshas bushing suppliers to acquire a direct replacement bushing or determine an acceptable replacement for bushings that are obsolete and no longer manufactured; modifications to leads and/or connections to accommodate dimensional differences would be identified and adapter leads and/or connections can be made during installation. We offer a full spectrum of in-field services, from on-site repairs and testing to the commissioning of new substations and diagnostic evaluations. This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply. Care must be taken when removing the silicon steel sheet, not to damage the coil leads, and to avoid breaking and bending the silicon steel sheet. Large Florida Cooperative Environmental Project Supervisor. +1.408.467.2222, RESA Systems West (Bakersfield, CA & Cerritos, CA), RESA Transformer Services East (Canton, OH & Wilson, NC/Raleigh-Durham), RESA Transformer Services West (Visalia, CA). Maintenance Partners offers a full maintenance solution for oil filled and dry transformers. Oil Pumps- Check flow indicator and pump isolation valves to ensure oil flow. At the same time, care should be taken to protect the skin of the wire insulation paint for reuse; special care must be taken to find and find the cause of the coil short circuit and open circuit. Thoroughly wipe down, vacuum, and dust transformer, Check bolted electrical connections for high resistance using an ohmmeter, Resistance testing through bolted connections. If the maintenance work is done, it can not only reduce the equipment failure rate, save maintenance costs, reduce costs, but also bring good economic benefits to the company and employees. The overload is divided into normal overload and accident overload. The product receives a new exterior paint job, is prepped with appropriate decals and accessories. For Sales and Support: Transformer maintenance method: The first step is to disassemble the core. ITI offers environmentally friendly FR3 retrofill that are: FR3 retrofill provide lower total life cycle costs, delayed asset replacement, lower personnel and equipment costs, lower insurance liability costs, lower cleanup costs, and less maintenance requirements. In special cases, the transformer can be overloaded for a short period of time, but it should not exceed 30% of rated load in winter and 15% of rated load in summer. Complete installation service can include oil handling, lead modification (if necessary), vacuum fill (if required) and testing. So what are the things we need to pay attention to when repairing and repairing transformers? Oil and nitrogen leaks are a nagging problem found with many power transformers. With our experience in transformer repair and maintenance, PT. Our technicians possess a wide range of skills and decades of combined experience, making us uniquely equipped to overcome a variety of challenges. Scope of work can include supplying new or replacement gauges, mounting gauges on tank, running line for temperature probe, modifying tank to add probe well, wiring from control box to gauges, calibrating the equipment and verifying operation. Sunbelt Solomon offers full-service repair and replacement, with a deep capability to meet your unique requirements. In addition there are contamination factors due to chemical interactions with windings and other solid insulations, catalyzed by high operating temperature. Contact Emerald Transformer today to learn more about our field maintenance and repair services. In addition to supplying the parts, Industrial Tests service can then field install the equipment for a seamless, hassle-free experience. Use a multi-meter to check motor current. 2070 Zwijndrecht - Belgium The measured value and the oil temperature during the measurement shall be recorded in the transformer history card. Were qualified to assist with projects related to hot oil processing, field dressing, oil testing, retro-filling, electrical testing, and routine maintenance, repair, and decommissioning. This process should take about 3 minutes. Our turnkey service takes care of you from the moment we pick up your equipment to when our logistics team returns it to you. Our experienced teams perform maintenance services that include: Our crews regularly work weekends and holidays to minimize your downtime. In addition to repairs, Prolec GE Waukesha has the equipment, experience and capabilities to complete other service work you may elect to perform while your transformer is being repaired, such as condition assessments, insulation dryouts, bushing replacements, LTC repairs/upgrades, natural ester retrofill, etc. The normal overload is caused by the increase in power consumption of the user under normal power supply conditions. All needed repairs or modifications are performed. If this range is exceeded, the tap-changer should be used to adjust the voltage to the specified range. If the distribution is unbalanced, it should be redistributed. To determine the maintenance need of your transformer(s), Maintenance Partners offers an assessment that consists of visual inspections, oil sampling, thermography and electrical measurements. Our service includes maintenance and repair of reclosers, oil circuit breakers, SF6 breakers and circuit switches, controls, regulators, and other station equipment. In addition, the transformer leads should be welded off the terminals, the fixing splint should be removed, and the first silicon steel sheet should be picked up with a screw driver, and then the pliers should be removed. We also perform transformer maintenance testing and evaluations as part of our routine servicing and transformer repairs. Sunbelt Solomon is available 24/7 for comprehensive repair and replacement services, including emergency maintenance, remanufacturing, and even rewinding your coils. Specifications and/or drawings need to be supplied by the customer, or an Prolec GE Waukesha technician/engineer can make a site visit to acquire any necessary dimensions and information. From there, our lifecycle management relationship continues, and we pick up your next round of repairs. We can help your electrical system operate at peak efficiency with specialization in all forms of transformer installations, transformer maintenance, electrical systems testing and transformer repairs. Industrial Tests works with bushing suppliers to acquire a direct replacement bushing or determine an acceptable replacement for bushings that are obsolete and no longer manufactured; modifications to leads and/or connections to accommodate dimensional differences would be identified and adapter leads and/or connections can be made during installation. Call us at+32(0)3541 71 40 or send us a message. Raya Trawas KM 3.8 Most leaks are repairable, and Waukesha Service has the ability to find leaks and make those repairs. It will increase the temperature of the transformer, causing the transformer insulation to age and the service life is reduced. They should be heated to disintegrate them from the transformer before disassembly. For a safe and reliable operation of transformers, preventive maintenance is a must. www.prolec.energy/prolecge/. Preventive maintenance includes the following tests: In addition, accessories and protectionsare checked (Detection Gas Pressure Temperature, Buchholz, Thermometer & Fans) and silica gel is replaced. The reconditioning process begins by performing electrical testing and visual evaluation of the product. In addition to replacing existing gauges, Industrial Tests can add gauges to transformers originally supplied without gauges. Besides preventive maintenance, we also execute repairs. In addition to replacing existing gauges, Waukesha Service can add gauges to transformers originally supplied without gauges. Complete installation service can include oil handling, lead modification (if necessary), vacuum fill (if required) and testing. Regardless of the transformer design, our team has the know-how and tools to complete the job quickly and safely. When disassembling, pay attention to the insulation between the layers, the diameter of the wires, the number of turns per layer and the number of layers, etc., so as to refer to the rewinding. Let ITI solve these leakage problems by putting new gaskets on all transformer openings or reprocessing the oil to ensure that transformer is in working condition. The following services are offered onsite: More comprehensive repairs that cannot be executed onsite are performed in our workshops: Maintenance Partners uses modern testing equipment for complete tests according to the highest standards: Are you interested in an assesment of your transformers or do you want to know more about maintenance of transformers? Electrical Tests Performed by ITI on transformers: With offices outside Sacramento, California, Industrial Tests, Inc. provides Transformer Maintenance services to clients throughout California including San Francisco, Los Angeles and San Diego as well as Arizona, Nevada, Oregon, Washington, Texas and nationwide. We will send your contact information to a member of our team to follow up. Scope of Transformer Repair and Maintenance : Head Office & Factory : In normal operation, the load on the transformer should be about 75-90% of the rated capacity of the transformer. Knowledge is power. Maintenance painting can minimize equipment downtime; repainting of radiators at the first signs of wear, for instance, can save you from the higher costs of radiator replacement at a later date. Customer provided information on the bushing requiring replacement is utilized, or an Prolec GE Waukeshas technician/engineer can make a site visit to acquire any needed dimensions and equipment information. Our power transformer installation service includes: Transformer oil processing, vacuum filling, heating and circulation. Transformer Maintenance, Repairs & Assembly. Our wide inventory starts and ends with peace of minddelivering performance equal to or greater than that of new products. Inspect physical and mechanical conditions for anchorage, alignment, and grounding. Improve safety and operations with RESAs training programs. As a result the original chemical properties of transformer oil changes gradually, rendering it ineffective for its intended purpose. The removed silicon steel sheets are then collected and wrapped in paper to avoid loss and damage to the insulation. Higher temperatures could mean an overload, or problems with the cooling system. Some of our resources include experienced personnel; equipment necessary to handle, store oil and vacuum-fill; certified, experienced welders and specialized processes/procedures to remedy all kinds of transformer leaks. Whether you need a short-term rental during a maintenance period or a long-term rental solution, you can rely on our team for quick, dependable service. Combining engineering expertise with high quality suppliers, Industrial Tests provides replacement radiator and cooler packages ready to install.