Space charge distribution measurements in polymers under needle-plane electrode configurations by pulsed electro-acoustic method

Liu, Y.; Salama, Mohamed

doi:10.1109/ceidp.1995.483721

Cited by 1 publication

(1 citation statement)

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“…The dependence of the formation and injection of space charge on the electrode materials (metals, semicon) has been investigated in many works. 8,10,17, Although various different electrode shapes have been considered in PEA systems, sphere-plane, 11,42 needle-plane, 38 line-plane, 24 and plane-plane 22,39-45 electrodes are widely used nowadays. While the ground electrode is always a plate, the top electrode may take various forms.…”

Section: Electrodesmentioning

confidence: 99%

Research progress on space charge characteristics in polymeric insulation

Zhang¹,

Christen

Meng³

et al. 2016

J. Adv. Dielect.

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Due to their excellent electrical insulation properties and processability, polymer materials are used in many electrical products. It is widely believed that space charge plays an important role for the electric field distribution, conduction, ageing, and electric breakdown of polymeric insulation. This paper reviews measurements and characteristics of space charge behavior which mainly determined by the pulsed electro-acoustic (PEA) measurement technique. Particular interests are the effects of the applied voltage, the electrodes, temperature, humidity, microstructure, additives, and filler materials on accumulation, distribution, transport, and the decay of space charge in polymeric materials. This review paper is to provide an overview on various space charge effects under different conditions, and also to summarize the information for polymeric materials with suppressed space charge and improved electrical behavior.

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