Now showing items 1-19 of 19

    • AC High Potential Testing of Large Hydro-Generator Stators Using Open Core Transformers 

      Bendre, V.D.; Bell, S.; Enright, W.; Bodger, P.S. (University of Canterbury. Electrical and Computer Engineering., 2007)
      When generator stators are rewound or undergo major repairs, there is often a desire to perform a high potential test. These tests can be completed using d.c., very low frequency or a.c. power frequency test voltages. A.c. ...
    • Design and construction of a triggered spark gap for long distance exploding wire experiments 

      Sinton, R.; van Herel, R.; Enright, W.; Bodger, P. (University of Canterbury. Electrical and Computer Engineering, 2010)
      This paper gives the technical information required to build a triggered spark gap (TSG) for igniting exploding wire experiments. The TSG, which uses a concentric three-electrode configuration, reliably triggers on test ...
    • An Experimental High Temperature Superconducting Transformer: Design, Construction and Testing 

      Lapthorn, A.; Chew, I.; Bodger, P.; Enright, W. (University of Canterbury. Electrical and Computer Engineering, 2010)
      In 2005, the development of a 50Hz, 15kVA, 30V:115V partial core high temperature superconductor (HTS) transformer was completed. The transformer was designed purely as a proof of concept, rather than as a unit that would ...
    • Formation of a Plasma Conductor by Induction 

      van Herel, R.; Sinton, R.; Enright, W.; Bodger, P. (University of Canterbury. Electrical and Computer Engineering, 2011)
      Plasma has been formed by exploding a wire in an inductively coupled circuit. Capacitors are discharged through air-cored mutually coupled coils. The exploding wire section of the electrically isolated coil is 0.2 mm ...
    • Generating high voltages with a plasma coil transformer 

      Sinton, R.P.W.; Hammond, C.; Enright, W.; Bodger, P.S. (University of Canterbury. Electrical and Computer Engineering, 2009)
      A novel prototype plasma coil based dry-type transformer has been built and used to create 75kV peak impulse voltages from a 40kVd.c. capacitor bank. This device uses an air-cored coil of exploding wire to produce a high ...
    • Investigating Long-Distance Exploding-Wire Restrike 

      Sinton, R.; van Herel, R.; Enright, W.; Bodger, P.S. (University of Canterbury. Electrical and Computer Engineering, 2010)
      An experimental setup was built using commonly available high-voltage laboratory equipment to investigate the creation of exploding-wire restrikes up to 9 m long. Sets of voltage traces are presented with varying applied ...
    • Lightning Arc Drawings - Dielectric Barrier Discharges for Artwork 

      Bell, S.; Enright, W.; Tunstall, K.; Bodger, P.S. (University of Canterbury. Electrical and Computer Engineering., 2007)
      Dielectric barrier discharges provide a simple means to generate non-thermal, non-equilibrium plasma. In this paper the use of the dielectric barrier discharge in the surface discharge arrangement in atmospheric-air under ...
    • A low voltage, mains frequency, partial core, high temperature, superconducting transformer 

      Bodger, P.; Enright, W.; Ho, V. (University of Canterbury. Electrical and Computer Engineering, 2005)
      A high temperature super-conducting transformer (HTST) has been built. It has been designed to operate in liquid nitrogen, an environmentally benign element that represents little fire and personnel safety risk. ...
    • A low-voltage, mains frequency, partial core, high temperature, superconducting transformer 

      Bodger, P.S.; Enright, W.; Ho, V. (University of Canterbury. Electrical and Computer Engineering., 2005)
      A high temperature super-conducting transformer (HTST) has been built. It has been designed to operate in liquid nitrogen, an environmentally benign element that represents little fire and personnel safety risk. The ...
    • A Marx Generator for Exploding Wire Experiments 

      Sinton, R.; van Herel, R.; Enright, W.; Bodger, P. (University of Canterbury. Electrical and Computer Engineering, 2011)
      A two-stage Marx generator was designed, constructed and tested for the purpose of investigating long distance exploding wire experiments. The voltage and energy requirements for the experiments are unique; up to 180 ...
    • Partial Core Transformer for Energization of High Voltage Arc-Signs 

      Lynch, K.; Bodger, P.S.; Enright, W.; Bell, S. (University of Canterbury. Electrical and Computer Engineering., 2007)
      A high voltage partial core resonating transformer has been designed and constructed such that its magnetising current reactance is matched to the reactive current drawn by the capacitance of an arc-sign. The supply only ...
    • The performance of silicon and amorphous steel core, distribution transformers at ambient and cryogenic temperatures 

      Bodger, P.S.; Harper, D.; Gazzard, M.; O'Neill, M.; Enright, W. (University of Canterbury. Electrical and Computer Engineering., 2002)
      Four, single phase, 50 Hz, l1/0.23kV pole mount distribution transformers were purchased from a manufacturer. The transformers were fitted with either silicon or amorphous steel cores. The transformer tanks were filled ...
    • Plasma Conductors and Windings 

      Sinton, R.; van Herel, R.; Enright, W.; Bodger, P.S. (University of Canterbury. Electrical and Computer Engineering, 2009)
      A novel type of high voltage transformer has been constructed, achieving a high voltage step-up using only a short length of magnet wire and no magnetic core. This is just one example of the exciting applications which may ...
    • A resonant transformer for high voltage testing of generator stators 

      Bodger, P.S.; Enright, W. (University of Canterbury. Electrical and Computer Engineering., 2004)
      A partial core transformer has been designed such that its magnetising reactance has been matched to a generator stator insulation capacitance. The reactive current drawn by the stator insulation is provided by the transformer ...
    • A resonant transformer for high voltage testing of generator stators 

      Bodger, P.S.; Enright, W. (University of Canterbury. Electrical and Computer Engineering., 2003)
      A partial core transformer has been designed such that its magnetising reactance has been matched to a generator stator insulation capacitance. The reactive current drawn by the stator insulation is provided by the transformer ...
    • Superconductor Transformer Failure: Testing and Investigation 

      Chew, I.; Lapthorn, A.; Bodger, P.; Enright, W. (University of Canterbury. Electrical and Computer Engineering, 2009)
      A partial core superconducting transformer, that was built in the Electrical and Computer Engineering Department, was tested under no-load, short-circuit, full-load and a two minute full-load endurance run. The first ...
    • Testing full-core and partial-core transformers at ambient and cryogenic temperatures 

      Bodger, P.S.; Harper, D.; Gazzard, M.; O'Neill, M.; Enright, W. (University of Canterbury. Electrical and Computer Engineering., 2002)
      Single phase, full-core transformers were fitted with either silicon or amorphous steel cores and immersed in either standard transformer oil or liquid nitrogen. Each transformer was subjected to a capacitance and dissipation ...
    • Towards a usable mains frequency partial core transformer 

      Bodger, P.S.; Harper, D.; Gazzard, M.; O'Neill, M.; Enright, W. (University of Canterbury. Electrical and Computer Engineering., 2002)
      A partial core transformer has been designed, built and tested for its performance in air and while immersed in liquid nitrogen. The transformer was designed as a mock up of a proposed high temperature superconducting ...
    • Vibration monitoring of hydropower generator unit transformers for the purpose of winding set condition monitoring 

      Obaid, B.; Enright, W.; Bodger, P.S. (University of Canterbury. Electrical and Computer Engineering., 2001)