ABB GSB 245 Technical Manual

Transformer bushings

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1 Z S C0 0 0 5 6 3 - A AC E N , R E V. 9
Transformer bushings type GSB
Technical guide

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Summary of Contents for ABB GSB 245

  • Page 1 — 1 Z S C0 0 0 5 6 3 - A AC E N , R E V. 9 Transformer bushings type GSB Technical guide...
  • Page 2 The information provided in this document is intended to be general and does not cover all possible applications. Any specific application not covered should be referred directly to ABB, or its authorized representative. We reserve the right to make technical changes or modify the contents of this document without prior notice.
  • Page 3: Table Of Contents

    — Table of contents Design Standards Features and benefits Transportation and long term storage Testing Test tap Test tap adapter Electrical data Dimensions Connection details Outer terminal Separate terminal plate with bolts Outer shield Inner terminal Draw rod system Fixed bottom contact Standard end-shield Conductor insulation Conductor loading and mechanical loading...
  • Page 5: Design

    T R A N S F O R M E R B U S H I N G S T Y P E G S B T E C H N I C A L G U I D E —...
  • Page 6 Dimensions according to IEEE Potential tap type A. U = 6 kV Capacitance C of test tap: < 5000 pF Conductor: Center tube or flexible draw lead conductor. Markings: Conforming to IEC/IEEE. Cenelec Technical specification Yes, for GSB 245 and GSB 420 50458...
  • Page 7: Testing

    T R A N S F O R M E R B U S H I N G S T Y P E G S B T E C H N I C A L G U I D E —...
  • Page 8: Electrical Data

    ±10 % (pF), with space for current transformer CT = 300/600 mm 663/769 619/701 579/652 553/612 553/612 — Table 3. Draw lead current. GSB 550-1675 GSB 245 GSB 362 GSB 420 and 550-1800 Draw lead current IEEE IEEE IEEE IEEE 1x50 mm...
  • Page 9: Dimensions

    T R A N S F O R M E R B U S H I N G S T Y P E G S B T E C H N I C A L G U I D E —...
  • Page 10 901245-BBA Porcelain, grey Voltage tap 6 kV 901245-AAB Porcelain, brown 901245-BAB Porcelain, grey Test tap 1220 901245-ABB Porcelain, brown 901245-BBB Porcelain, grey Voltage tap 6 kV 901245-CAA / -CCA Composite Test tap -CBA / -CDA Composite Voltage tap 6 kV...
  • Page 11 T R A N S F O R M E R B U S H I N G S T Y P E G S B T E C H N I C A L G U I D E Space for current Creepage distance (mm) Rated current (A)
  • Page 12: Connection Details

    Outer shield This shield is standard for GSB 420 (Cat. No. 2748 682-DN) and 550 (Cat. No. 2748 682-DY). GSB 245 and 362 fulfil all requirements of the IEC and IEEE tests without outer shield. However, if extra shielding of the connected power lines is required, outer shield (Cat.
  • Page 13: Inner Terminal

    T R A N S F O R M E R B U S H I N G S T Y P E G S B T E C H N I C A L G U I D E Inner terminal The inner terminal for connection of the draw lead is made of copper.
  • Page 14: Draw Rod System

    T R A N S F O R M E R B U S H I N G S T Y P E G S B T E C H N I C A L G U I D E Draw rod system If required to meet the transport conditions, an additional The draw rod system offers the following advantages...
  • Page 15: Fixed Bottom Contact

    T R A N S F O R M E R B U S H I N G S T Y P E G S B T E C H N I C A L G U I D E Fixed bottom contact The fixed bottom contact (Cat.
  • Page 16: Conductor Loading And Mechanical Loading

    T R A N S F O R M E R B U S H I N G S T Y P E G S B T E C H N I C A L G U I D E —...
  • Page 17: Recommendations For Positioning

    T R A N S F O R M E R B U S H I N G S T Y P E G S B T E C H N I C A L G U I D E —...
  • Page 18: Ordering Particulars

    • Catalogue number for outer terminal. • Additional accessories or modifications. • Test required, in addition to the normal routine tests. Ordering example 1: Bushing: GSB 245/2000/0,6 Composite, test tap 1ZSC901245-CAB Connection: Draw rod, lower, additional joint H1 = 300 mm 1ZSC999006...
  • Page 20 — ABB AB, Components SE-771 80 Ludvika Sweden E-mail: sales@se.abb.com www.abb.com/transformercomponents © Copyright 2018 ABB. All rights reserved. Specifications subject to change without notice.

This manual is also suitable for:

Gsb 362Gsb 420Gsb 550-1800Gsb 550-1675

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