EBAC BUSHING ANSI STANDARD IEEE C

Transcription

1 TECHNICAL PRODUCT BROCHURE EBAC BUSHING ANSI STANDARD IEEE C EBAC 69 kv BUSHING

2 EBAC Bushing Applications Top Connector For transformers and oil circuit breakers For interchangeable transformers/circuit breakers EBAC Bushing Features One-piece solid cast insulation (no-oil) Installation possible at any angle Superior performance in earthquake zones compared to porcelain - very resistant to vibration Robust - can be used in mobile equipment Insensitive to moisture Resistant to salt fog High thermal index + 20 C extra margin over traditional OIP porcelain bushings - ideal for hot applications Not affected by temperature variations Less parts per bushing; simpler construction Safe failure mode; does not explode like porcelain Capacitance Tap Dielectric Body Applicable Standards Flange IEEE C IEEE C IEEE C ISO ECI EBAC bushings are designed to meet or exceed these standards. Shield Shed and Core Features Munsell 70 light gray color Cycloaliphatic system - UV resistant and non-tracking High dielectric value Impact resistant Solid dielectric core molded in one piece with integral shield Fire retardant material- FV0 rated Bottom Connector Conductor

3 Draw Lead or Solid Connect Terminal Options Draw Lead: Connector can be designed for brazed or crimped configuration Available in 00A draw-lead or 00/1200A interchangeable with bottom connect terminal Bushing can be used with or without a bottom terminal Fixed Copper Connector: Lower end is supplied with different options such as NEMA blades or standard thread Capacitance Tap The flange is made of machined high strength aluminum with a leak-proof seal between the bushing and the equipment The test tap is integrated into the mounting flange Capacitance taps come standard with transformer bushings; optional for breaker bushings Ground shield connection is provided by a solid welded pin attachment Shield positioning is optimized using electrostatic field calculation software Bushing Name Plate Each bushing is routine tested for partial discharge, power factor, capacitance and dry withstand (hi-pot) A detailed routine test report is provided with each bushing (100% testing and reporting) A name plate is attached to the bushing flange providing information to the field personnel

4 EBAC Bushing Specifications BUSHING MODEL No. VOLT CLASS (kv) BIL (Kv) CURRENT RATING (AMPS) POCKET LENGTH OVERALL LENGTH / / / / / / / / W&T 25 (10.00) (10.00) (10.00) (10.00) 19 6 (27.00) 19 H 768 (30.25) 933 (36.75) 108 (1.25) 806 (31.75) 972 (38.25) 10 (2.75) 819 (32.25) 98 (38.75) 1099 (3.25) 1270 (50.00) 90 (37.00) 1105 (3.50) 1219 (8.00) 125 (9.00) 1397 (55.00) 110 (55.50) 110 (55.50) 110 (55.50) 1622 (63.88) 1892 (7.50) 1892 (7.50) 1892 (7.50) * Nominal dimensions for reference only; refer to official drawing for exact dimensions

5 EBAC Bushings: Meeting Standard IEEE C EBAC stands for Electro Bushing ANSI Compatible and is your assurance that our bushings are designed and manufactured according to ANSI Standards. EBAC BUSHING SPECIFICATION TABLE * ABOVE FLANGE LENGTH 25 (16.75) 25 (16.75) 25 (16.75) 521 (20.50) 521 (20.50) 521 (20.50) 521 (20.50) 70 (18.50) 70 (18.50) (22.00) 559 (22.00) 771 (30.38) 90 (37.00) 889 (35.00) 889 (35.00) BELOW FLANGE LENGTH MAX LOWER TYPE TOP TERMINAL BOTTOM TERMINAL SEALING SURFACE FLANGE BOLTING DETAILS MIN. USABLE THREAD THREAD CLASS TYPE MIN. USABLE THREAD THREAD CLASS MAX. INSIDE MIN. OUTSIDE No. OF BOLTS HOLE BOLT CIRCLE A L D G F J E P Q C K 33 (13.50) 508 (20.00) 622 (2.50) (23.00) 698 (27.50) 32 (17.00) 597 (23.50) 711 (28.00) (29.50) (23.00) 698 (27.50) 775 (30.50) 927 (36.50) 800 (31.50) 8 (33.50) 8 (33.50) 8 (33.50) 952 (37.50) 1003 (39.50) 1003 (39.50) (.00) (.00) (.00) 89 (3.50) (.00) 127 (5.00) (.00) 133 (5.25) 10 (5.50) 165 (6.50) (2.50) 76 (3.00) (2.50) 76 (3.00) 1 1/8-12 BT1 1 1/8-12 BT1 1 1/8-12 BT1 BT1 BT1 BT1 BT2 38 (1.50) 38 (1.50) 38 (1.50) 5 1 1/ / /8-12 BT1 BT1 BT BT N/A N/A 2-12 BT5 N/A N/A BT2 BT2 5 5 BT N/A N/A 2-12 BT5 N/A N/A 108 (.25) 108 (.25) 108 (.25) (.00) (.00) (.00) (.00) (.00) (.00) (.00) (.00) 127 (5.00) (7.00) (8.25) 210 (8.25) 235 (9.25) (9.25) (8.25) (9.25) (9.25) 260. (10.25) OUTSIDE (10.63) 2 (9.63) 270 (10.63) 270 (10.63) 295 (11.63)

6 ECI Reverse Engineering Service ECI provides reverse engineering services for old bushings which are not ANSI compatible. Based on the dimensional characteristics and the electrical requirements, we can propose a model meeting your requirements and test it according to ANSI/IEEE standards. Any non standard requirement, such as longer creep or higher temperature application, must be specified at the time of the request for quote. To facilitate the process, fill out and send a copy of the form, on the opposite page, to our sales office. Factory and testing facilities

7 EBAC BUSHING SPECIFICATION REQUEST FORM Please complete all information boxes and fax to our Sales and Technical office: (50) Date: From Name: Title: Company: Telephone: Description 1. Nominal Current: Amps 2. Nominal Voltage: kv 3. Dimensions for quotation only, do not use for production.. Dimensions in millimeters; otherwise please specify: 5. Additional Notes: Model No.: Original Manufacturer: Application: Transformer Breaker Recloser Other: Telephone: Fax: eci-co.com

8 EBAC SOLID INSULATION BUSHINGS FEATURES The design features and characteristics of EBAC bushings provide many benefits and advantages over traditional OIP (Oil Impregnated Paper) porcelain bushings. Meeting standard IEEE C requirements: Partial discharge values below 2pC (required value less than 25pC) resulting from void-free casting process, provides enhanced longevity Bushing construction (cycloaliphatic resin body combined with dry type assembly) provides current overload capacity while maintaining maximum temperature rise limit All ECI bushings are oil-free: NO oil and NO PCBs Can be stored and mounted at ANY angle since there is no oil No oil reservoir required, therefore no oil-level maintenance No need for stabilization period prior to installation - simply receive and install Minimized environmental impact Non-tracking insulation is suitable for more compact designs and allows for providing longer creep distances; optimized for highly polluted areas and more demanding applications: - salt fog (coastal and highways) - heavy industrial areas - continued UV exposure Fire retardant material and no oil to burn provides added safety benefits Safe failure mode cycloaliphatic bushings do not explode like porcelain bushings High resistance to damage since bushings do not shatter under impact (dropped tool, gun shot), equipment operation is not compromised allowing for continued operation and minimized shut-downs Insulation is moisture resistant (note that this type of material is often used to seal broken porcelain!) Copyright 2009 Hubbell Incorporated Electro Composites Inc. Sales and Technical Service 1919 Lionel Bertrand, Suite 107, Boisbriand, QC, Canada J7H 1N8 Telephone: Fax: info@eci-co.com hpsliterature@hps.hubbell.com eci-co.com hubbellpowersystems.com Bulletin #: EC-2 A&J 2M 3/09 February, 2009