Distribution transformer components Product guide

Transcription

1 Distribution transformer components Product guide

2 Bushings ABB offers both high voltage and low voltage bushings designed for use in pad or surface mounted transformers. The bushings insulate the current carrying conductor from the tank, allowing for termination of both the airside conductor and the transformer leads. Both the high and low voltage bushings have been designed to conform with ANSI/IEEE standards. ABB high voltage bushing wells are molded from a glassreinforced, high temperature nylon (HTN) resin. They are designed to mate with all bushing inserts conforming to the appropriate sections of IEEE In addition to the fixed stud bushing well, ABB offers a removable stud version. ABB one inch and five-eighths inch low voltage bushings are molded from a glass-reinforced, high temperature nylon resin. The. inch low voltage bushings are molded from a polyester resin. All of the low voltage bushings provide a spade terminal for internal connection and a threaded stud for external connection. High voltage bushing well options BIL (kv) Continuous current (A) Package quantity Part number Integral copper stud ZUA760-AKC Removable copper stud ZUA760-AKD HV bushing mounting HV bushing well key dimensions reference diameter for the mounting studs tank mounting hole 0. mounting stud * Dimensions are presented in inches Bushings ABB distribution components

3 Low voltage bushing options BIL (kv) Continuous current (A) Package quantity Part number 0.6 copper standard length ZUA760-AFC 0.6 copper extended length ZUA760-AFD.000 copper standard length ZUA760-AGC.000 copper extended length ZUA760-AGD.0 copper with hole C6G04.0 copper with holes C6G07 5/8 inch low voltage bushing key dimensions inch low voltage bushing key dimensions and 5/8 inch low voltage bushing mounting.590 A B. C D.80 reference diameter for the mounting studs.8 tank mounting hole 0. mounting stud Stud style Dimension A Dimension B Standard Extended Stud style Dimension C Dimension D Standard Extended inch low voltage bushing key dimensions and mounting. inch low voltage bushing mounting reference diameter for the mounting studs.80 tank mounting hole 0. mounting stud * Dimensions are presented in inches ABB distribution components Bushings

4 Fuse holders ABB offers two types of fuse holders - the Type K and the DO-III fuse holder. Both fuse holders are designed for use in pad-mounted transformers. The fuse holders are available in a variety of ratings and configurations which are detailed on the next few pages. The ABB DO-III fuse holder is a draw-out, load-break expulsion fuse holder. It is intended to protect the distribution system in the event of an internal transformer fault, secondary fault, or severe overload when used with properly coordinated expulsion fuses. The DO-III fuse holder is designed for use at voltages up to kv (line-to-ground) and kv BIL. The fuse holder works in conjunction with ABB DO-III fuse links which can be found on page 6 of this guide. DO-III fuse holder standard options Vent hole Check valve Cartridge Silver plating Package quantity Part number x x 44 C07G0 x x 44 C07G0 x x x 44 C07G0 x x 44 C07G04 x x x 44 C07G06 x x x 44 C07G07 x x 44 C07G08 x x x x 44 C07G09 x x 44 C07G0 DO-III mounting DO-III fuse holder accessories Description Package quantity Part number Cartridge with end plug 7 B4G0 Silver plated cartridge with end plug 7 B4G0 Puller assembly, cartridge, and end plug 6 C0765G0 Puller assembly 6 C0765G0 Puller assembly, silver plated cartridge, and end plug 6 C0765G0 Mounting nut and gasket 0 C07G05 Drip shield 0 C0880H0 End plug 0 A98H0 Gasket A49H radius mounting index.6 tank mounting hole * Dimensions are presented in inches 4 Fuse holders ABB distribution components

5 The Type K current limiting fuse canister provides an air-insluated receptacle for general purpose current limiting fuses used in pad-mounted or submersible transformers such as the Hi-Tech Trans-Guard FX fuse. The Type K fuse holder features dead front construction, hermetic sealing, self-aligning spring contacts and stainless steel, corrosion-resistant components. Additionally, the canister can be welded or clamped onto the transformer tank. The Type K fuse holder allows the operator easy access to the current limiting fuse for inspection or replacement. The table below provides the maximum fuse dimensions suitable for use in the Type K canister. Voltage class (kv) Maximum diameter A Maximum length B Terminal length C Terminal diameter D C B D A The Type K canister is available in three different voltage classes and is either welded into place or clamped. Type K canister options Voltage (kv) BIL (kv) Package quantity Part number - welded Part number - clamped Type K mounting reference diameter for the mounting studs.80 tank mounting hole 0. x. mounting stud (clamped version only) Type K accessories Description Package quantity Part number Mounting clamp 4 980AH0 Gasket Fuse holder adapter 8. kv to 5.5 kv Fuse holder adapter 8. kv to kv Fuse holder adapter 5.5 kv to kv * Dimensions are presented in inches ABB distribution components Fuse holders 5

6 Fuses Safety, including the protection of people and property, is at the forefront of today s business. Fuses offer a simple and cost effective solution to some of the risk associated with electric distribution. The fuses listed in the next few pages are intended for use under oil in distribution equipment. ABB offers a variety of expulsion fuses. Both ABB protective links and draw-out fuses offer protection to the distribution system should an internal transformer fault occur. ABB s drawout expulsion fuses also offer some protection for overload and secondary faults. Isolation links, though not true fuses with an interrupting rating, are used to protect those who work on transformers from connecting into a faulted circuit. ABB draw-out fuses are designed for use in ABB s DOIII type fuse holder, but are interchangeable with most draw-out fuse holders on the market today. These fuses are available in three different configurations for a wide array of current ratings. The draw-out fuses are generally limited to 4.94 kv line-to-line grounded Y. However, when paired with a current limiting fuse the voltage rating can be extended slightly. ABB isolation links are not fuses in the sense that they are not designed to interupt current. However, isolation links are intended to be used in conjunction with draw-out expulsion fuses to prevent the unintentional re-energization of a faulted transformer. In the table below use the current rating and fuse type to locate the needed draw-out expulsion fuse and associated isolation link part numbers in the right two columns. Draw-out fuses Current rating (Amperes) Fuse type Package quantity Draw-out fuse part number Optional isolation link part number 6 current sensing 0 B4G04 C0G0 0 current sensing 0 B4G06 C0G0 5 current sensing 0 B4G08 C0G0 current sensing 0 B4G0 C0G0 40 current sensing 0 B4G C0G0 65 current sensing 0 B4G4 C0G05 current sensing 0 B4G6 C0G05 40 current sensing 0 B4G7 C0G05 dual sensing 0 B44G0 C0G0 8 dual sensing 0 B44G05 C0G0 5 dual sensing 0 B44G08 C0G0 dual sensing 0 B44G0 C0G05 dual sensing 0 B44G C0G06 65 dual sensing 0 B44G4 C0G07 5 dual element 0 B45G0 C0G0 6 dual element 0 B45G04 C0G0 8 dual element 0 B45G05 C0G0 dual element 0 B45G06 C0G0 5 dual element 0 B45G07 C0G0 dual element 0 B45G09 C0G0 40 dual element 0 B45G C0G0 dual element 0 B45G C0G0 6 Fuses ABB distribution components

7 The ABB protective link is an oil-immersed, expulsion type fuse designed for use in the high voltage circuit of distribution equipment. Protective links are available in a variety of fuse sizes and voltage ranges up to 4.5 kv line-to-line grounded Y. In most applications today, the protective link is used in series with a partial range or back-up current limiting fuse such as the Hi-Tech Trans-Guard family of current limiting fuses. The standard offering for the 5 kv protective link featured below includes a long lead. This product is also offered with a short lead or for block mounting. Please contact ABB for details. Protective links Current rating (Amperes) Fuse curve Package quantity Part number through 5 kv Part number through kv Part number through 4.5 kv B58G0 779C667G0 45B995G B58G0 779C667G0 45B995G9 7 A 0 59B58G 779C667G0 45B995G B58G06 779C667G08 45B995G B58G0 779C667G04 45B995G 5A 0 59B58G 779C667G09 45B995G B58G04 779C667G05 45B995G B58G05 779C667G06 45B995G 4 7A 0 59B58G 779C667G 45B995G B58G07 779C667G07 45B995G B58G08 779C667G4 45B995G B58G09 779C667G5 45B995G B58G4 779C667G6 45B995G B58G Not available Not available B58G Not available Not available ABB distribution components Fuses 7

8 Switches ABB distribution transformer tap changers and dual voltage switches are de-energized, rotary type switches suitable for use in both pole and pad-mounted transformers. Tap changers are available that can handle up to 00 kv BIL and amps, while dual voltage switches are available that can handle up to kv BIL and amps. The switches are configurable with many options including the number of decks, termination choices, handle styles, and dial plate designations. These switches were designed and tested in accordance with IEEE standard C ABB distribution tap changers and dual voltage switches feature a wide range of configurations. To select a standard switch, please refer to the following tables and locate the appropriate ratings and requirements. For other configurations not listed in these tables, please contact your ABB representative. Dual voltage (DV) Number of decks Current rating (Amperes) Stationary contacts description Moving contact description Package quantity DV switch part number #-0 Crimp short 609C76G05 #-0 Crimp 0 609C76G09 #-0 Crimp C76G5 #-0 Crimp C76G6 0. bolt hole C76G 0. bolt hole C76G stud C76G stud C76G08 #-0 Crimp short 609C77G09 #-0 Crimp 0 609C77G05 #-0 Crimp C77G5 #-0 Crimp C77G6 0. bolt hole C77G 0. bolt hole C77G stud C77G stud C77G08 #-0 Crimp short 609C8G #-0 Crimp 0 609C8G05 #-0 Crimp C8G5 #-0 Crimp C8G6 0. bolt hole C8G08 0. bolt hole C8G stud C8G stud C8G09 8 Switches ABB distribution components

9 Tap changer (TC) Number of decks Current rating (Amperes) Stationary contacts description Moving contact description Package quantity TC switch part number #-0 Crimp short Wiping C0G0 #-0 Crimp 0 Wiping C0G0 #-0 Crimp 45 Wiping C0G0 #-0 Crimp 90 Wiping C0G04 0. bolt hole CG 0. bolt hole CG stud CG stud CG08 #-0 Crimp short 609C7G09 #-0 Crimp 0 609C7G8 #-0 Crimp C7G5 #-0 Crimp C7G6 0. bolt hole C7G 0. bolt hole C7G stud C7G stud C7G4 #-0 Crimp short 609C78G #-0 Crimp 0 609C78G05 #-0 Crimp C78G5 #-0 Crimp C78G6 0. bolt hole C78G09 0. bolt hole C78G stud C78G stud C78G De-Energized switch mounting 45 terminal angle. tank mounting hole Decks 90 terminal angle 0.4 radius mounting index Terminal angle options Decks 0 terminal angle 0 * Dimensions are presented in inches Deck ABB distribution components Switches 9

10 Switches The ABB LBOR-II switch is a manually operated, two position, load make or break, oil immersed, rotary switch. It is designed for use with distribution transformers (pad-mounted or submersible) and self contained distribution switchgear. With a smaller mounting envelope than most switches on the market today, the LBOR-II switch has been designed to save you money. The reduced envelope allows for smaller equipment that requires less oil and steel to manufacture. ABB LBOR II switches feature a wide range of configurations. To select a switch, please refer to the tables below and locate the appropriate ratings, then select a style number for the required mounting configuration. If interlock kits are required for a nut mount switch, please order the suitable style without and add the interlock kit, style A949G0. For non-standard configuration options that are not listed in these tables, please contact your ABB representative. LBOR-II ordering information One deck Style numbers Continuous current (A) BIL (kv) Maximum voltage (L-G kv) Mounting orientation Weld-in without Weld-in with standard Weld-in with interlock Nut mounting with Nut mounting without Wall 7D94G0 7D94G 7D94G4 L095NC00 L095JC Wall/Cover 7D9G0 7D9G 7D9G4 LNC00 LJC Wall/Cover 7D9G0 7D9G 7D9G4 LNC400 LJC400 Two deck Style numbers Continuous Current (A) BIL (kv) Maximum voltage (L-G kv) Mounting orientation Weld-in without Weld-in with standard Weld-in with interlock Nut mounting with Nut mounting without Wall 7D94G0 7D94G 7D94G5 L095NC00 L095JC Wall/Cover 7D9G0 7D9G 7D9G5 LNC00 LJC Wall/Cover 7D9G0 7D9G 7D9G5 LNC400 LJC400 Three deck Style numbers Continuous current (A) BIL (kv) Maximum voltage (L-L kv) Mounting orientation Weld-in without Weld-in with standard Weld-in with interlock Nut mounting with Nut mounting without Grd-Y Wall 7D94G0 7D94G 7D94G6 L095NC00 L095JC00 00 * 8 Grd-Y Wall/Cover 7D9G0 7D9G 7D9G6 LNC00 LJC * 7 Grd-Y Wall/Cover 7D9G0 7D9G 7D9G6 LNC400 LJC400 * Per IEC 65- the BIL rating for these styles is 80 kv 0 Switches ABB distribution components

11 LBOR nut mounting LBOR weld-in mounting. tank mounting hole.00 Mounting surface for A frame must be clear from obstruction 0.4 radius mounting index.06 tank mounting hole.8 Mounting boss with retained gasket Mounting nut Mounting bolts Mounting boss Operating handle Tank wall Cantilever feet Operating handle Spirol pin Tank wall A frame mounting bracket * Dimensions are presented in inches ABB distribution components Switches

12 Contact us ABB Inc. South Cavalier Drive Alamo, Tennessee 800, USA Phone: Fax: Note: The information contained in this document is for general information purposes only. While ABB strives to keep the information up to date and correct, it makes no representations or warranties of any kind, express or implied, about the completeness, accuracy, reliability, suitability or availability with respect to the information, products, services, or related graphics contained in the document for any purpose. Any reliance placed on such information is therefore strictly at your own risk. ABB reserves the right to discontinue any product or service at any time. ZUA Copyright 05 ABB. All rights reserved.