A.R. Penfold

Are you A.R. Penfold?

Claim your profile

Publications (2)1.35 Total impact

  • Article: An investigation of transient overvoltage generation when switching high voltage shunt reactors by SF6 circuit breaker
    Z. Ma, C.A. Bliss, A.R. Penfold, A.F.W. Harris, S.B. Tennakoon
    [show abstract] [hide abstract]
    ABSTRACT: The work reported in this paper can be grouped into three categories: empirical investigations; analytical studies; and computer simulations. The studies have identified the causes of high transient overvoltages which are produced when switching high voltage shunt reactors. Laboratory and site testing have shown that multiple reignition is the most likely cause of the high overvoltages. Circuit analysis has been carried out to identify the conditions which lead to multiple reignitions. A computer model has been developed to allow the likelihood of multiple reignitions occurring to be assessed
    IEEE Transactions on Power Delivery 05/1998; · 1.35 Impact Factor
  • Conference Proceeding: New 145 kV dead tank spring operated circuit breaker
    D.J. Royle, A.R. Penfold
    [show abstract] [hide abstract]
    ABSTRACT: The authors describe a new dead tank SF<sub>6</sub> circuit breaker which can be used as a replacement for bulk oil circuit breakers as well in a new substations. It utilises a modern SF<sub>6</sub> single pressure design and a spring mechanism of known reliability. The circuit breaker incorporates slip-over current transformers and has a 40 kA short circuit capability. The circuit breaker is the result of a common development for both the USA and UK
    Trends in Distribution Switchgear, 1994., Fourth International Conference on; 12/1994

Institutions

Browse more researchers