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Portable transformer and method for improving reliability of electric power delivery

A transformer, portable technology, applied in the direction of interchangeable inductors/transformers/coils, transformer handling devices, substations, etc., can solve problems such as undesired maintenance

Inactive Publication Date: 2010-06-09
GENERAL ELECTRIC CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for economic or other reasons, it may not be desirable to maintain spare parts on hand to handle transformer outages

Method used

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  • Portable transformer and method for improving reliability of electric power delivery
  • Portable transformer and method for improving reliability of electric power delivery
  • Portable transformer and method for improving reliability of electric power delivery

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Embodiment Construction

[0028] The following embodiments of the invention have many advantages, including rapidly providing fast access to large portable MVA generator step-up (GSU) transformer components, thereby allowing for unavailability of installed step-up transformers for power stations to be restored phase replacement power.

[0029] The portable single-phase transformer unit of the present invention can be provided within the output range for augmentation or temporary replacement of installed equipment. Once on site, usually the portable transformer can be installed quickly. This embodiment may be rated at approximately 70MVA, however, other embodiments may be as high as 100MVA or even greater.

[0030] This portable single-phase GSU transformer can be transported by road, rail, barge, or other standard vehicle to be used as a short-cycle, return-to-service equipment replacement solution for generator step-up transformers and autotransformers . The advanced design allows optimal MVA and v...

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PUM

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Abstract

An apparatus and method for improving the transportation and installation of portable step-up power transformers for a power generating station due to failure or unavailability of installed step up transformers. A large MVA portable single phase generator step up transformer (310) may be used to alleviate or minimize these issues by being purpose built for transportability and commissioning speed. The portable single phase generator step up transformer (310) is transportable by road trailer (320) or lighter rail. Its size and weight are arranged to overcome restrictions such was weight limits, bridge constraints, and power line constraints. This portable single phase generator step up transformer (310) may also provide for rapid commissioning and decommissioning. The portable single phase generator step up transformer (310) may be a set of three single-phase units of sufficient size to be used as a generator step up transformer in three-phase operation in a variety of configurations.

Description

technical field [0001] The present invention relates generally to improving the continuity and reliability of electrical power delivery, and more particularly to large-scale portable power transformers that can be carried on roads on trailers and the use of such portable power transformers to improve power delivery for electrical utility users Continuity and reliability approach. Background technique [0002] A transformer is a device in which alternating current (AC) is converted from one voltage to another by electromagnetic induction without changing the frequency. Transformers are widely used in various electric devices, and especially in power transmission in which high voltage and low current are utilized. [0003] A transformer has two coils wound on a common core: a primary coil for input and a secondary coil for output. The primary to secondary voltage ratio is proportional to the number of turns in the primary and secondary coils; the current ratio is inversely p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02B5/00H02J11/00
CPCH01F27/002H01F27/004H02B1/52
Inventor G·A·科布E·J·考夫曼S·R·罗斯滕E·M·杜马斯
Owner GENERAL ELECTRIC CO
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