PPPS 2019

Session

5.5 Insulation and Dielectric Breakdown III

O10D

28 Jun 2019, 15:30

DoubleTree at the Entrance to Universal Orlando

Conveners

5.5 Insulation and Dielectric Breakdown III

• Jacob Stephens (MIT)

1140. Characterizing breakdown voltage in micro-gaps with multiple field emitters at atmospheric pressure*

Dr Yangyang Fu (Michigan State University)

28/06/2019, 15:30

5.5 Insulation and Dielectric Breakdown

Oral

Insulation between high voltage electrodes is often in the form of micro-gaps which leverage the high breakdown voltage that occurs on the near-side of Paschen’s curve. Structures on the electrodes are a concern due to electric field enhancement that can occur. The breakdown voltage in atmospheric pressure micro-gaps having multiple cathode field emitters was computationally investigated using...

606. Spatio-temporal dynamics of pulsed gas breakdown in microgaps

Guodong Meng (Xi'an Jiaotong University)

28/06/2019, 15:45

5.5 Insulation and Dielectric Breakdown

Oral

Microscale gas breakdown plays a critical role in microplasma generation for numerous applications and device lifetime for miniaturized electronics. This work provides further insight into the spatio-temporal dynamics of pulsed gas breakdown for different gap distances using an in-situ electrical-optical measurement method. Time-resolved sequential images and the corresponding photon number ...

601. A pulse-sequence resolved study on evolution of streamer dynamics and discharge mode transition under repetitive frequency nanosecond pulses in high-pressure nitrogen

Mr Zheng Zhao (Xi'an Jiaotong University)

28/06/2019, 16:00

5.5 Insulation and Dielectric Breakdown

Oral

Nanosecond repetitively pulsed discharge (NRPD) is attracting extensive attention recently due to its unique chemistry and physics properties, which are important for various applications including the plasma fruit sterilization. Streamer dynamics and discharge mode transition were fundamental properties of NRPD. Previous studies mainly investigated the NRPD by using two consecutive pulses and...

1097. Buried Conductor Detection in The Seabed

David Sanabria (University of New Mexico)

28/06/2019, 16:15

5.5 Insulation and Dielectric Breakdown

Oral

Unlike pure water, electrical breakdown in seawater has not been studied broadly, in seawater the ions are provided by the salt content leading to a conductivity of about 53mS/cm in contrast, purified water has a theoretical conductivity of 55nS/cm, when short pulses are applied the contribution of the ions to current conduction is weakened due to the low drift velocity of the ions and...

1162. Investigation of Sterolithographic Laser Additive Manufacturing Resins for Pulsed Power Applications

Robert Beattie-Rossberg (University of New Mexico)

28/06/2019, 16:30

5.5 Insulation and Dielectric Breakdown

Oral

Investigation of Sterolithographic Laser Additive Manufacturing Resins for Pulsed Power Applications
R. Beattie-Rossberg, A. Kuskov, S. Portillo, E. Schamiloglu
Electrical and Computer Engineering
The University of New Mexico

Polycarbonate dielectrics like Lexan and polyetherimides such as Ultem have long been used as dielectrics in Marx generators, Blumlein lines, and in other pulsed...

635. Study on Insulation Characteristics Evolution of Oil-impregnated Paperboard under Mechanical Stress

Mr Yao Xiao (School of Electrical Engineering, Xi’an Jiaotong University)

28/06/2019, 17:00

5.5 Insulation and Dielectric Breakdown

Oral

I.INTRODUCTION
During the long-term running of transformer, its oil-paper insulation system withstands various stresses of temperature, mechanical stresses and electric fields, which will continue to age. There is much research on electrical aging and heat aging, but few research on aging under mechanical stress.
II.EXPERIMENTAL PLATFORM AND PROCESS
In order to simulate the pressing...