1. What is Townsent's law? What is streamer mechanism? What are the main differences of them? (20 marks) 2. What are the

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1 What Is Townsent S Law What Is Streamer Mechanism What Are The Main Differences Of Them 20 Marks 2 What Are The 1 (56.54 KiB) Viewed 31 times

1. What is Townsent's law? What is streamer mechanism? What are the main differences of them? (20 marks) 2. What are the main methods to improve the breakdown voltage of insulation liquids? (10 marks) 3. What are the main performances of dielectrics? (10 marks) 4. What are the main ionization types in gases? (10marks) s. What are the polarization type and its time, application range, losses characteristics? (15 marks) 6. What is "bridge mechanism" in liquid dielectric breakdown?(10 marks) 7. U, and U, reach to A point and B point respectively When t=0. See in Fig. 1. Please calculate Uc(t) and i(t). (25 marks) Where: U,=200 kV, U2=100 kV Z=300 92 AC=600 m, CB=300 m v=300 m/us U LU, À Z CZB Fig. 1 رل La