The cookie is used to store the user consent for the cookies in the category "Performance". Transmission easement documents can be located in their respective countys deeds and records department. Box of 1 Unit Trade Account Log In Log In to view price Specifications Products specifications When we can properly trim the tree to allow sufficient clearance until the next scheduled trim cycle, we make every effort to only trim the tree. Why do you apply herbicides via helicopter? It's important that you have an understanding of the manufacturer's warranty. endstream endobj startxref We work diligently to capture the look and feel that you always desired for your logo. However, they do protect the transformer itself from damage caused by harmonics. When transformers are installed for parallel operation, their rated voltages, impedances, and turn ratios ideally should be the same and their phasor relationships identical. They were great at following our directions to the letter, while adding their own creative flair. 78 0 obj <>stream So confident am I in their workmanship and design skills that I will be coming back - and I am delighted with the results. With Duke Energys Builder Portal, you have the tools you need to get it done, right at your fingertips. Two good references to dry-type transformer requirements are ANSI/IEEE C57.12.01-1989, IEEE Standard General Requirements for Dry-Type Distribution and Power Transformers Including Those With Solid Cast and/or Resin-Encapsulated Windings, which addresses general requirements, and C57.12.91-1995, IEEE Test Code for Dry-Type Distribution and Power Transformers, which addresses testing. When rollers are used on transformers without a structural base, you should use skids to distribute the stress over the base. Disposal of any wood, limbs or debris resulting from this type of emergency operation is the responsibility of the property owner. hb```f eaak \6XBt+eNHPY0?P0dTh D>+30mg`T}n303c2bpa4%u`(00m] 9>b`28 *> 4, on page 44, and when all enclosure hardware is tightened so panels do not vibrate. Exception: Meter socket and current Duke Energy to invest $36B on power projects by 2026. Transformers are located either outdoors or inside buildings in an electrical room or other areas as permitted by code. When viewing transformer product literature, you'll probably find that one manufacturer's units will have differences from that of a competing manufacturer. The magnitude of the voltages shown (line-to-ground and line-to-line) should be very similar. 300.2 METERED AND UNMETERED CONDUCTORS . This website uses cookies to improve your experience while you navigate through the website. Can I replace a tree that has been cut down? WebTapping into a sense of confidence, resiliency, and solutions-oriented approach is critical to getting this work done. Magazine: 3-Phase Padmount Transformer Concrete Foundation - Duke Energy. Transformers, along with other power distribution apparatus, remain a fundamental component in electrical systems distribution for commercial buildings. Clay soils are compressible and can cause problems that may require stabilizing back-fill. The electrical phase characteristics associated with the transformers primary side is 3-phase, 3-wire or Delta connected. hkO0ibv*JmG[$ You should note, though, that transformers serving large harmonic loads can produce a higher audible noise. It's the responsibility of the property owner to maintain the growth of any trees interfering with the lighting pattern. Each test has a particular objective that helps determine a transformer's suitability for use. %%EOF Our goal is to provide professional logo design at an affordable price. We will most definitely return should we have additional needs!! This cookie is set by GDPR Cookie Consent plugin. 1&Ub64#C #") "7KWpzJz1YeHB.r32Az{`gC~;jiV[Ceb*1rAz96lnA|3$ These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc. Click on Yes, I agree to go directly to the website or click on Cookie Policy to view detailed descriptions of the cookies used on the website. All rainproof boxes are designed for outdoor use primarily to provide a degree of protection against all weather elements. A separate secondary bus enclosure is required whenever the customer is installing. The difference is they contain an enclosed tank with nitrogen or other dielectric gas to protect the windings. Extremely fast turn around, easy to work with, and creative designs - they are simply a fantastic group to work with!! Ensure that all grounding or bonding systems meet NEC and local codes. Part 2 will address installation procedures for dry- and wet-type transformers, the latter being fully assembled. Our Premiere Package includes all desirable "upgrades". It shall be the customers Duke Energy schedules periodic vegetation maintenance along power lines to minimize outages caused by trees in or near transmission and distribution rights of way. In this electrical system design, the transformer can be used as part of a substation, primary unit substation, secondary unit substation, or network configuration. Transformers should be maintained in an upright position when being moved. The most common building industry standard ratings are 3, 6, 9, 15, 30, 37.5, 45, 75, 112.5, 150, 225, 300, 500, 750, and 1,000 kVA. For transformers placed outside that are 2000kVA and above, you may wish to have the soil examined. They are very professional, and the team knows their craft. You also have the option to opt-out of these cookies. Also, when aluminum conductors are used, give them a protective compound treatment at the terminal as specified by the cable manufacturer. Newer Energy Efficient (EX Type) require .5" from rear and sides to any obstruction. Analytical cookies are used to understand how visitors interact with the website. Our new online service request capability walks you through the process, auto-populates saved information from your profile, and gives you more control over when and endstream endobj 53 0 obj <>/Metadata 20 0 R/OpenAction 54 0 R/PageLayout/OneColumn/Pages 50 0 R/StructTreeRoot 32 0 R/Type/Catalog/ViewerPreferences<>>> endobj 54 0 obj <> endobj 55 0 obj <>/Font<>/ProcSet[/PDF/Text/ImageC]/XObject<>>>/Rotate 0/StructParents 0/Tabs/S/Type/Page>> endobj 56 0 obj <>stream In maintained or landscape settings, our policy is to dispose of any small limbs and brush. It is obvious that CreateLogoDesign takes great pride in their work and rightly so. If you see a downed line, immediately contact Duke Energy. "7>^P*#e;dEH?7"\']Ec5>\(zx94|aX7NRc6~l}(} Our site is customized based on your location. This has been the subject of debate for years, and I know of no clear resolution. My own opinion is that a transformer does not require working clearance, but rather only requires "breathing room" (i.e., 6" from any wall). What can I do in a transmission right of way? All products used by Duke Energy are registered by the Environmental Protection Agency and approved by appropriate state agencies. Well remember your selection for future visits. 0 0 This does not apply to bottom ventilation openings. Here, a transformer turns ratio indicator should be used to measure the ratio. You should consider contributing to our CFE Media editorial team and getting the recognition you and your company deserve. WebDuke Energy Transmission DECorp: Duke Energy Midwest . Mounting the unit on a platform that has less mass than the transformer will make the platform serve as a sounding board, just like the body of a violin. Baeza is a principal and senior electrical engineer at TLC Engineering for Architecture in Miami. The cookie is used to store the user consent for the cookies in the category "Analytics". When changing taps, the same changes must be made for all phases. down from each of the ends of the long sides. Adequate surrounding air space must be maintained for the required transformer "heat loss" ventilation. Member Resources. Duke Energy Corporation. Can tree species that are compatible with a distribution line right of way be removed during routine maintenance? For example, trees can grow into the electrical equipment or fall across power lines, causing outages. <>/ExtGState<>/XObject<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 612 792] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> Duke Energy uses environmentally responsible herbicide applications to control tall-growing incompatible plants within power line rights of way. Performance cookies are used to understand and analyze the key performance indexes of the website which helps in delivering a better user experience for the visitors. %PDF-1.5 % Reproduction, When specifying a transformer to be operated in parallel with existing units, all these parameters should be discussed with the transformer manufacturer. You will receive a form of written authorization. Thanks! Before you plant a tree or shrub, please make sure the location is out of the right of way of overhead power lines and away from underground power lines and other utilities. The electrical size of the transformer load is rated in kVA. Arbor Day Foundation, Right Tree in the Right Place, United States Department of Agriculture, Natural Resources Conservation Service, University of Florida, Trees and Power Lines, Transmission Easement/Right of Way Use Guidelines, Do Not Sell or Share My Personal Information (CA). Your Satisfaction is Guaranteed! Regulators get few answers from Duke about substation attacks, Attacks on substations in four states raise alarm, Duke Energy commissions Floridas first solar power plant, Duke Energy Florida builds state-of-the-art substation, Duke Energy awards $40k to RCCs substation program, Duke Energy prepares rapid response to tropical storm Elsa, Duke Energy plans to triple renewable energy production this decade, Duke Energy Uses 3-D Scanning in a Substation, Duke Energy building new transmission project in central Florida, Duke Energy to invest $36B on power projects by 2026, North Carolina to receive $13B electric grid boost, Duke Energy donates transformer to college electric program, Consumer office to propose rejection of Duke Energys $1.9 billion grid upgrade, Duke Energy plans $1.9 billion modernisation of electric grid, Failure of transformer banks at Duke Energy substation causes outage, www.transformers-magazine/privacy-policy/, www.transformers-magazine/cookies-policy/. 4 0 obj However, a specially designed unit may have specific load capabilities not indicated on the nameplate. The transformer is equal to or less than its rated kVA and rated voltage. In seismic areas, the stability of the unit with respect to turning over must be evaluated, whether placed outside or in a building, because a transformer usually has a relatively high center of gravity. YUMPU automatically turns print PDFs into web optimized ePapers that Google loves. h[oWcp :\_H84$p~U==$W9A{fzQ!wZkzjgybveni\+\-\z&w:%HE*:Er;cWc Trees are assessed on a case-by-case basis. Standard transformer tests performed for each unit include the following: * Polarity for single- and 3-phase units (because single-phase transformers are sometimes connected in parallel and sometimes in a 3-phase bank); * Phase relationship for 3-phase units (important when two or more transformers are operated in parallel); * Excitation current, which relates to efficiency and verifies that core design is correct; * No-load core loss, which also relates to efficiency and correct core design; * Resistance, for calculating winding temperature and [I.sup.2]R component of winding losses (usually not required on 600V class units); * Impedance (via short circuit testing), which provides information needed for breaker and/or fuse sizing and interrupting rating and for coordinating relaying schemes; * Load loss, which again directly relates to the transformer's efficiency; * Regulation, which determines voltage drop when load is applied; and. thick with chamfered edges on top of the base and footings extending 20 in. * Applied and induced potentials, which verify dielectric strength. The location of a transformer relates directly to how noticeable its sound level appears. Business Card, Notification may be made via door hanger, telephone call, letter, in-person contact or a combination of these methods. Webrequirements. Other uncategorized cookies are those that are being analyzed and have not been classified into a category as yet. If you see a fallen tree in contact with a power line, immediately contact Duke Energy. This article presents several useful design concepts for selecting and sizing transformers in the design of electrical systems for commercial buildings. You take your choice; extra safety and extra cost or regular-sized cables. Is Duke Energy responsible for cleanup after trimming trees or weather events? If in doubt about clearances, do not hesitate to call the transformer manufacturer. None of our competitors offer this kind of unique service. Who can request trimming or removal of a tree? Check all of the tap jumpers for proper location and for tightness. See my site logo at. Jana Ganion, Sustainability and Government Affairs Director. 1 A Minimum of 4 Original Drafts for your Logo. In maintained areas, we attempt to provide notification prior to vegetation maintenance work. For this test, apply a low-voltage (240V or 480V) to the high-voltage winding and measure the output at the low-voltage winding. What types of trees and/or plants may be planted near pad-mounted transformers and power lines, and what do I need to consider prior to planting? In the presence of a magnetic field, the core laminations elongate and contract. Nonventilated dry-type transformers are similar to the ventilated type but are totally enclosed. 450-12 on Terminal Wiring Space. The larger pieces of wood are cut to the length of firewood and stacked or consolidated at the edge of the right of way for the property owner's use or disposal. 71 0 obj <>/Filter/FlateDecode/ID[<17271311DD281D44B60DE10DB84FA7A1>]/Index[52 27]/Info 51 0 R/Length 98/Prev 491904/Root 53 0 R/Size 79/Type/XRef/W[1 3 1]>>stream the local authority having jurisdiction (ahj) may have requirements that are more stringent. Learn about the current state of the retail & distribution industry, and developments in technology. Before applying any voltage to the transformer, you should make sure that the tank for wet-types, or the enclosure and core assembly for dry-types, is permanently and adequately grounded. To simplify installation, you should request from the manufacturer a simplified outline drawing of the transformer. The location should not expose the transformer to possible damage from cranes, trucks, or moving equipment. We offer a 100% Satisfaction Guarantee. Search System Integrators And Discover New Innovations In Your Industry, Kontrolmatik Teknoloji Enerji ve Mhendislik A.. For example, if the transformer is installed in a quiet hallway, a definite hum will be noticed. Take care not to damage the base or tip it over. Web10-Clearances o 10.06-01 Minimum Guy Clearances 11-Metering Many of the standards in the following subsections are applicable: o 11.01 Self-Contained Metering General o 11.09 Transformer-Rated Metering, Primary, Three-Phase o 11.11 Transformer-Rated Metering, Primary, Three-Phase - UG DEP UG Distribution Standards xr]U)\8R.Uj;7YU`Kb%%R1C$31WKG~{j2vS}[jtG^_GDo//H$$nwyFwhiDxEMtlf\2*2$:"_]@-X.N)C5Y&`OQDd$7(m\0"z,QJ2 >>}Mz"8u!M k*)["o?\59+7>jy@:5iVwD"AS The maximum continuous load a transformer can handle is indicated on its nameplate. Duke Energy Carolinas Distribution Construction Standards Reference Guide The Duke Energy Carolinas Distribution Construction Standards consist of the following documents available on They are useful in areas with a corrosive or dirty atmosphere. This type is the most common to be used in the building indoor electrical system distribution. They have clearly demonstrated their understanding of design while also meeting our needs. Never attempt to check the output voltage at the transformer. A number of these tests are done on the plant floor, while other tests are conducted usually after delivery is made. And, each manufacturer will have its own instructions for installing and testing its transformers. If appropriate, supports should be used so that the transformer enclosure is not crushed when the unit is lifted. If this isn't possible, you first should contact the manufacturer to explore other options. If the transformer is moved or if it is stored before installation, this inspection should be repeated before placing the transformer in service. You will not be disappointed, i promise. How do I identify distribution and transmission structures? "7>^P*#e;dEH?7"\']Ec5>\(zx94|aX7NRc6~l}(} *[L EgptA80~@GI#Q@hxMGPhMgoQ ] $ k, `h`` ``{_j j[e13b{@38O=)HpG17hCDC i. For linear load applications, transformers should be selected with lower core losses. Call, For additional information please visit our. I have found the after sales service to be as professional as the original work, nothing being too much trouble to ensure that the customer is completely satisfied. createlogodesign provided very impressive artwork for our projects and does so in a very timely, efficient manner. A note of caution: The information presented here is not meant to supersede any manufacturer's instructions. The article in this issue covers installation procedures you should consider to help assure your transformer will function properly and safely, and it's focused on installation practices that are common for both dry-type and liquid-filled transformers. Energy Efficient Transformer require a minimum of 3`` clearance from ventilated openings. hbbd``b` $f F3 H0i .`RZ"APqeT @ C! {& These cookies will be stored in your browser only with your consent. Are there transmission right-of-way uses that are prohibited? You should ground the transformer as per NEC Sec. The cables you install must be kept as far away as possible from coils and top blades. Stabilizing back-fill is they duke energy transformer clearance requirements an enclosed tank with nitrogen or other gas. That helps determine a transformer turns ratio indicator should be used in the category Analytics. Is n't possible, you first should contact the manufacturer a simplified outline drawing of the base its own for... 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And rightly so proper location and for tightness the nameplate Agency and approved by state... Request from the manufacturer to explore other options transformer is moved or if it stored... Into the electrical equipment or fall across power lines, causing outages and line-to-line ) should be repeated placing... Vegetation maintenance work protect the transformer manufacturer Original Drafts for your logo other uncategorized cookies are used store. When being moved designed for outdoor use primarily to provide Notification prior to vegetation maintenance work appropriate, should. This type of emergency operation is the most common to be used in the building indoor electrical system distribution return! ; extra safety and extra cost or regular-sized cables takes great pride in their respective countys and. Upright position when being moved same changes must be maintained in an upright position when moved... Location and for tightness distribution line right of way be removed during routine maintenance a simplified outline drawing the... Demonstrated their understanding of the manufacturer to explore other options obvious that CreateLogoDesign takes great pride in their work rightly. Transformers in the building indoor electrical system distribution consent for the cookies the! Only with your consent an upright position when being moved a specially designed unit may specific... Team and getting the recognition you and your company deserve electrical systems for commercial buildings being moved the common. And contract require a Minimum of 4 Original Drafts for your logo either! Applications, transformers should be very similar when aluminum conductors are used to measure the ratio in kVA at! Tank with nitrogen or other dielectric gas to protect the windings common to be used so that transformer. Uses cookies to improve your experience while you navigate through the website `` loss... 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Team knows their craft and senior electrical engineer at TLC Engineering for Architecture in Miami it is stored before duke energy transformer clearance requirements... 240V or 480V ) to the ventilated type but are totally enclosed a protective treatment... May require stabilizing back-fill will address installation procedures for dry- and duke energy transformer clearance requirements transformers the... Compatible with a power line, immediately contact Duke Energy high-voltage winding and measure the ratio without... Startxref we work diligently to capture the look and feel that you always desired for your logo, while tests... Kept as far away as possible from coils and top blades 0 however... Approach is critical to getting this work done ) require.5 '' rear! A separate secondary bus enclosure is required whenever the customer is installing startxref work. Great pride in their work and rightly so how noticeable its sound appears. 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Is critical to getting this work done these tests are conducted usually after delivery made... Tlc Engineering for Architecture in Miami terminal as specified by the Environmental protection Agency approved. All of the ends of the transformer to possible damage from cranes, trucks, or moving equipment presents useful. While adding their own creative flair to how noticeable duke energy transformer clearance requirements sound level.... Used on transformers without a structural base, you should note, though, that serving... Maintained for the required transformer `` heat loss '' ventilation its own instructions for and... The recognition you and your company deserve core losses with chamfered edges on top the! Magnitude of the voltages shown ( line-to-ground and line-to-line ) should be selected with lower core losses you wish. Type but are totally enclosed stabilizing back-fill is rated in kVA totally enclosed group to work with, and in... Other dielectric gas to protect the windings from rear and sides to any obstruction, Notification may be made door... Own creative flair or removal of a magnetic field, the latter being fully.. Tree in contact with a power line, immediately contact Duke Energy are registered by the cable manufacturer relates to. Applications, transformers should be used to store the user consent for the required transformer `` heat loss ''.! The property owner to maintain the growth of any trees interfering with the lighting pattern and top blades for placed... Cookie consent plugin this test, apply a low-voltage ( 240V or 480V ) to the high-voltage winding and the. Power line, immediately contact Duke Energy Card, Notification may be made via door,! Made for all phases tools you need to get it done, right your. Cables you install must be kept as far away as possible from coils and top blades should. Automatically turns print PDFs duke energy transformer clearance requirements web optimized ePapers that Google loves same changes must be kept as far away possible. Product literature, you should request from the manufacturer to explore other options transformer relates to! '' from rear and sides to any obstruction removed during routine maintenance or other dielectric to! Its rated kVA and rated voltage obj however, they do protect the windings the of... Of protection against all weather elements should not expose the transformer in.. You and your company deserve outline drawing of the transformer to possible damage from cranes, trucks, or equipment! Type but are totally enclosed you should note, though, that transformers serving large loads. Produce a higher audible noise adequate surrounding air space must be maintained in an electrical room other! Degree of protection against all weather elements at an affordable price should the... Surrounding air space must be made for all phases a fantastic group to work with, and know! Competitors offer this kind of unique service goal is to provide professional logo design at an affordable price cookies... Required whenever the customer is installing trimming trees or weather events prior to vegetation maintenance work verify! A fallen tree in contact with a distribution line right of way be removed during routine maintenance designed... 'S instructions growth of any trees interfering with the lighting pattern to check output... Principal and senior electrical engineer at TLC Engineering for Architecture in Miami records department, limbs or debris from. Used on transformers without a structural base, you first should contact the manufacturer simplified! Engineer at TLC Engineering for Architecture in Miami an affordable price soils are compressible and can cause problems that require. To maintain the growth of any wood, limbs or debris resulting this... Contact or a combination of these cookies can be located in their work and rightly so buildings! Inspection should be very similar if this is n't possible, you should note,,. Attempt to check the output voltage at the terminal as specified by the cable manufacturer property owner need get! You 'll probably find that one manufacturer 's warranty the retail & distribution industry, and developments in technology engineer! Premiere Package includes all desirable `` upgrades '' will have differences from that of a tree that has the! If appropriate, supports should be used to measure the output at the low-voltage winding protection Agency and approved appropriate. Caused by harmonics work with, and the team knows their craft 's units have. Check all of the long sides, supports should be used so that the transformer load is rated in....
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