Results 91 to 100 of about 23,922 (257)
, 2020 Humid insulating gas (SF6) has been observed in a case study of 631 CB-bays of Gas Insulated Switchgear (GIS) operating under tropical conditions. The routine gas quality check in the case study reported that 20% of the non-Circuit Breaker enclosures ...
A. Purnomoadi, A. Mor, J. Smit
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Flashover Characteristics of Dry Band-water band on Hydrophobic Surfaces
CSEE Journal of Power and Energy SystemsDue to their outstanding anti-flashover characteristics, composite insulators have been extensively applied in power systems. A lot of research has investigated flashover characteristics of hydrophobic specimens with artificial water droplets.
Xiaohan Wu +5 more
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High Voltage, 2018 Under dc electric field, pollution may be more easily deposited around insulator string caps and pins, distributing non-uniformly on its inner and outer parts, and presenting ring-like shape.
Zhijin Zhang +6 more
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, 2010 Establishing a compartment fire's area of origin when it has been burning at post-flashover conditions is a difficult process. Burn patterns traditionally used by fire investigators following post-flashover fires can be erroneous.
Carey, Nicholas, NicDaeid, N.
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Flashover Features in Aircraft Cargo Compartment at Low Pressure
FireThe flashover mechanism in an aircraft cargo compartment under low pressure was investigated in this study. A series of fire experiments were conducted in a scale model of a one-quarter volume FAA standard aircraft cargo compartment at 96 kPa and 60 kPa.
Zitong Li +3 more
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An Underappreciated Radiation Hazard from High Voltage Electrodes in Vacuum
, 2016 The use of high voltage (HV) electrodes in vacuum is commonplace in physics laboratories. In such systems, it has long been known that electron emission from an HV cathode can lead to bremsstrahlung X-rays; indeed, this is the basic principle behind the ...
DeMille, David +8 more
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Sessile water droplets on insulating surfaces subject to high AC stress effect of contact angle [PDF]
, 2002 Surface pollution of outdoor high-voltage insulators is an important cause of flashover. We have undertaken an experimental study of electrical breakdown at the edges of a sessile water droplet on a planar, polymeric, insulating surface when subject to ...
Crichton, B.H. +3 more
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Characteristics of EMI generated by negative metal-positive dielectric voltage stresses due to spacecraft charging [PDF]
, 1985 Charging of spacecraft surfaces by the environmental plasma can result in differential potentials between metallic structure and adjacent dielectric surfaces in which the relative polarity of the voltage stress is either negative dielectric/positive ...
Chaky, R. C., Inouye, G. T.
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AIP Advances, 2018 Creeping flashover easily occurs at the interface between oil and pressboard in transformer and thus results in outage of power transmission system. Investigations have shown that creeping flashover characteristics at oil/pressboard interface can be ...
Meng Huang +5 more
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Dielectric molding apparatus Patent [PDF]
, 1971 Dielectric apparatus for heating, fusing, and hardening of organic matrix to form plastic material into shaped ...
King, C. B., Menges, M. J., Swann, R. T.
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