摘要:

AC drive systems are taking an increasing proportion of the UK electric variable-speed-drives market. Recent studies indicate that the proportion taken by AC drives has risen from approximately 20% of the market in 1984, to 25% in 1986

ISSN:1479-8344    

DOI:10.1049/pe:19880033

出版商:IEE    

年代:1988

数据来源: IET

摘要:

What happens to the Northern Ireland Electricity system if a major infeed is lost? This article looks at present-day electricity-supply emergency control strategies

ISSN:1479-8344    

DOI:10.1049/pe:19880034

出版商:IEE    

年代:1988

数据来源: IET

摘要:

Computer-aided analysis of power systems is becoming more prevalent as a result of reductions in power-engineering manpower, tumbling information-technology costs and a need for more accurate answers. What are the advantages of using computers for systems calculations and what are the pitfalls? This article aims to throw some light on today's commercially used power systems analysis technology

ISSN:1479-8344    

DOI:10.1049/pe:19880035

出版商:IEE    

年代:1988

数据来源: IET

摘要:

Economic and environmental pressures have stimulated rapid changes in power-capacitor technology. Due to the development of stronger and easier-to-impregnate polypropylene films, together with the successful introduction of a dozen or more new non-PCB impregnating fluids, a new generation of low-loss high-capacitance all-film capacitors are gradually replacing the traditional all-paper and mixed paper-film types by S. K. Lowe

ISSN:1479-8344    

DOI:10.1049/pe:19880036

出版商:IEE    

年代:1988

数据来源: IET