Understanding partial discharges in low-power relay and silicone cable modified to suit high-voltage requirement of deep sea electrical system

2018 ◽  
Vol 28 (6) ◽  
pp. e2542 ◽  
Author(s):  
Saravanakumar Arumugam ◽  
Yvonne Haba ◽  
Gerhard Koerner ◽  
Dirk Uhrlandt ◽  
Mathias Paschen
Keyword(s):  
Low Power ◽  
High Voltage ◽  
Deep Sea ◽  
Partial Discharges ◽  
Electrical System

scholarly journals STUDY AND PERFORMANCE OF PARTIAL DISCHARGE OF MODEL FOR DIFFERENT TYPE INSULATION MATERIALS WITH CAPACITANCE VALUE

2021 ◽  
Vol 8 (12) ◽  
pp. 323-327
Author(s):  
Neetu Baghelkar ◽  
Abhishek Dubey
Keyword(s):  
High Voltage ◽  
Transmission Lines ◽  
Partial Discharge ◽  
Electrical Equipment ◽  
Partial Discharges ◽  
Electrical System ◽  
Insulating Material ◽  
Different Types ◽  
And Performance ◽  
Short Time

The properties of the insulating material must be the best to avoid failure of electrical equipment. Partial discharges act as electrical sparks that occur within insulation and the high-voltage electrical system. The different types of voltage and current pulses are produced, which last for a very short time. Partial discharge is taking place in high voltage power equipment such as cables, transmission lines and transformers, etc.

scholarly journals Device for online monitoring of insulation faults in high-voltage switchgears

2021 ◽  
Vol 17 (2) ◽  
pp. 155014772199928
Author(s):  
Jiajia Song ◽  
Jinbo Zhang ◽  
Xinnan Fan
Keyword(s):  
Fourier Transform ◽  
High Voltage ◽  
Online Monitoring ◽  
Pulse Current ◽  
Partial Discharge ◽  
Current Method ◽  
Capacitive Sensor ◽  
Accurate Diagnosis ◽  
Partial Discharges ◽  
Urgent Problem

Partial discharges are the major cause of deterioration in the insulation characteristics of switchgears. Therefore, timely detection of partial discharge in switchgear and potential insulation faults is an urgent problem that needs to be addressed in the power supervision industry. In this study, a device was proposed for online monitoring of high-voltage switchgears based on pulse current method and ozone (O3) detection. The pulse current method obtains the PD signal by monitoring the phase holes on the switch indicator. Occurrence of a partial discharge in a certain phase leads to the production of a discharge pulse, which can be coupled out by a capacitive sensor. The current spectrum and the O3 produced by partial discharge were processed via fast Fourier transform for accurate diagnosis of the occurrence of partial discharge and its severity in switchgears. The proposed method allows for convenient acquisition of the partial discharge signal, simple installation of the device, and realization with inexpensive sensors.

A Low Power and Area Scalable High Voltage Switch Technique for Low Operation Voltage in MLC NAND Flash Memory

2010 ◽  
Vol E93-C (2) ◽  
pp. 182-186
Author(s):  
Myounggon KANG ◽  
Ki-Tae PARK ◽  
Youngsun SONG ◽  
Sungsoo LEE ◽  
Yunheub SONG ◽  
...  
Keyword(s):  
Low Power ◽  
High Voltage ◽  
Flash Memory ◽  
Nand Flash ◽  
Nand Flash Memory
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