space charges造句
1. Space charges are easy to be formed in insulating polymers under dc stress because of the trapped charges.
2. Experimental results show that space charges play an important role in the Pre-breakdown of solid dielectrics.
3. Space charges is often created by trapping or preventing their movement due to various traps, as a result trap properties decide the store and transport of the charge.
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4. Space charges might be due to the injection charges, the impurity ions and the orientation of small molecule dipoles , among which the orientation of small molecule dipoles seem predominate.
5. After grounding, polarization charges and shallow charges will be released. The space charges still existing in water tree are called residual charge.
6. The mechanisms of slow polarize relaxation come from the diffuse of space charges and traps, it is absorption current in the macroscopic.
7. On the basis of experiment of electrical tree initiation, the effects of space charges on divergent fields are discussed.
8. It is primarily considered that, the contact barrier between electrode and material and the space charges inside polymers greatly affect their EL characteristics.
9. To blend a small amount of chlorinated polyethylene(CPE)into polyethylene, the space charges in samples are greatly decreased and the field distribution trends to uniform.
10. With great progresses of space charge measurement technologies in the last three decades, lots of researches were focused on space charges in solid dielectrics.
11. The invention is used for measuring the distribution of the space charges in the high-voltage direct current power equipment insulation in the temperature gradient field.
12. When direct current (DC) voltage is applied to water tree degraded cable, space charges will be formed in water tree.
13. Experimental results point out that the said copolymer electret film is a polar material, i. e. there exist both oriented dipoles and deposited space charges in the film after charging.