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Federal Pacific Medium Voltage Transformer Catalog

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Federal Pacific Medium Voltage Transformer Catalog Federal Pacific Medium Voltage Transformer Catalog Federal Pacific History In 1987, Electro-Mechanical Corporation acquired the dry-type transformer division of Federal Pacific Electric in Des Plaines, Illinois. It was moved to Bristol, Virginia and the name was changed to Federal Pacific (FP). A new 100,000 square foot facility was constructed where time- proven designs and modern technology were combined and deployed under new management. Expansion in early 1993 provided an additional 36,000 square feet of manufacturing space. Federal Pacific Today Federal Pacific is a major manufacturer of dry- type transformers which serve the industrial, construction, commercial, mining, OEM and utility markets. The product scope is 50 VA through 10,000 kVA and 120 volts through 25,000 volts. The 600 volt class offering includes industrial control transformers, encapsulated/ compound-filled general purpose and buck- boost transformers, ventilated designs for general purpose applications, electrostatically shielded transformers and a complete line of motor drive isolation transformers. The medium voltage offering includes core and coil transformers, general purpose designs, pad mount transformers, unit substation transformers, vacuum pressure impregnated transformers (VPI), and VPI/epoxy shielded transformers. K-Factor rated transformers are offered for the entire product scope. Distribution Regional warehouse stocks have been implemented across the United States, ensuring quick delivery anywhere in the country. 2 Table of Contents Medium Voltage Transformers ...........................................................................................................4-8 High Voltage General Purpose Transformers ................................................................................9-11 Unit Substation Style Transformers ...............................................................................................12-16 Pad-Mounted Transformers ................................................................................................................. 17 High-Rise Building Transformers ........................................................................................................ 18 Motor Drive Isolation Transformers .................................................................................................... 19 ABS Type Transformers ........................................................................................................................ 20 Upgrade, Refurbish / KVA Upgrade, Voltage Upgrade .................................................................... 21 Transformer Basics .............................................................................................................................. 22 Transformer Selection Considerations ......................................................................................... 23-26 Advantages of Ventilated Dry-Type Medium Voltage Over Liquid Filled ...................................... 27 Advantages of VPI Epoxy Shield Compared to Cast Coil ................................................................ 28 Unit Substation Style (USST) Transformer Specification Guide .............................................. 29-30 Glossary ............................................................................................................................................. 31-34 Dimensions in this catalog not to be used for construction purposes. Consult factory for detailed construction drawings. 3 Medium Voltage Dry-Type Transformers Overview Insulation System Federal Pacific is an industry leader in providing custom Federal Pacific transformers utilize a 220°C insulation system engineered dry-type transformers for low and medium that combines inorganic materials and resins to provide a voltage applications. Designs are available in a wide fire resistant, high dielectric capability. All materials have variety of types and ratings to provide reliable and versatile been thoroughly tested and proven with respect to their electrical distribution for lighting and power loads in stability at required operating temperatures. industrial and commercial applications. Whether the ® application requires a dedicated use, engineered design The major components of the 220°C system include Nomex or a commonly-used transformer with a simple voltage paper for conductor insulation plus resin-glass laminates, transformation for special equipment, Federal Pacific can silicon rubber and polyester varnish. The combination of design and build your transformer quickly and reliably. materials is specifically chosen to assure long operating life and quiet operations Federal Pacific offers a full line of medium voltage ® transformers. Base styles and ratings are shown below. Nomex is a Registered Trademark of Dupont Co. These transformers can be configured to meet most any Industry Standards & Certifications application requirement. All medium voltage transformers ® are engineered-to-order to the requested specifications. Federal Pacific dry-type transformers are UL Listed and are designed, tested, and manufactured in accordance with High Voltage General Purpose Transformers applicable industry standards of ANSI, NEMA and IEEE. 2.4kV to 15kV, 15kVA through 1500kVA Unit Substation Transformers Industry-Leading Ship Times 2.4kV through 25kV, 15kVA through 10MVA Under the Lightning Fast Program Federal Pacific can deliver engineered-to-order low and medium voltage transformers Pad-Mounted Transformers with significantly reduced lead time (additional charges 2.4kV through 25kV, 15kVA through 10MVA apply). Lightning Fast shipments should be requested at the time of quotation as some designs may be exempt from The air-cooled, dry-type construction requires no special the service. vault for installation. Units may be located in almost any indoor location convenient to the load being served. Most Medium Voltage Typical Shipment Lead Times transformers are also available for outdoor installations. Standard Lightning Fast Maintenance requires only periodic inspection of cable kVA Lead Time Lead Time connections and removal of any dust accumulation. ≤ 500 4-6 Weeks ≤ 2 Weeks Special Applications 750 4-6 Weeks ≤ 3 Weeks Below are a few examples of the many variations of ≥ 1000 4-6 Weeks ≤ 4 Weeks specialty transformers Federal Pacific has designed and manufactured. Special sound levels Test transformers Reconnectables Mine Duty Multiple primaries/secondaries ABS Marine Duty Special Impedance Drive Isolation Auto-Transformers Plus many others Special Paint 4 Medium Voltage Dry-Type Transformers Standard Tested Performance Sound Levels Federal Pacific performs a standard series of tests to ensure Federal Pacific transformers are designed, built, and comply proper operation, adherence to applicable standards and with NEMA and IEEE maximum sound level requirements. product quality. Tests performed include: Medium Voltage Sound Levels and Typical Impedance Ratio Testing is performed on rated voltage connection In accordance with IEEE C57.12.01 and tap connections to assure the proper turns ratio on all Percent Impedance - 3 Phase Audible Sound Levels (db) - 3 Phase KVA Forced Air connections. 5 kV Class 15kV Class Self Cooled Cooled (FA) (30 kV BIL) (60 kV BIL) (AA) Average Average Polarity Test and Phase Relation Tests are made to ensure proper polarity and marking because of their importance in 112.5 Consult Factory Consult Factory 50 — paralleling or banking two or more transformers. 150 Consult Factory Consult Factory 50 — 225 Consult Factory Consult Factory 55 — No-load (Excitation) Loss Testing determines the losses of a 300 5.00 5.00 55 67 transformer which is excited at rated voltage and frequency, 500 5.75 5.75 60 67 but which is not supplying a load. Transformer excitation 750 5.75 5.75 64 67 losses consist mainly of losses in the core of the transformer. 1000 5.75 5.75 64 68 Impedance Voltage & Load Loss Test determines the 1500 5.75 5.75 65 69 impedance voltage and the amount of losses (excluding no- 2000 5.75 5.75 66 71 load losses) in the transformer when carrying full rated load. 2500 5.75 5.75 68 71 2 These losses consist primarily of I R losses in the primary 3000 5.75 5.75 68 73 and secondary winding and ensure that specifications of >3000 Consult Factory Consult Factory Consult Factory Consult Factory the transformer design are met. Excitation Current Testing determines the current necessary to maintain transformer excitation. Resistance Testing is performed on the transformer windings and is used to determine I2R loss. Dielectric Tests (applied and induced potential) check the insulation and workmanship to demonstrate that the transformer has been designed and manufactured to meet the insulation levels required by the standards and/or customer. – Applied Potential Testing is performed by impressing a low frequency voltage between windings and between each winding and ground. – Induced Potential Tests over-excite the transformer by applying between the terminals on one winding a voltage of twice the normal voltage developed in the winding for a period of 7200 cycles. 5 Medium Voltage Dry-Type Transformers The United States Department of Energy (DOE) establishes energy efficiency standards for all transformers under DOE Article 10 CFR 431. The latest updates to the standards went into effect on January 1, 2016. Federal Pacific’s transformers meet the requirement set forth by the Department of Energy. The established standards and efficiency requirements have been
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