TY - GEN
T1 - Understanding the surface discharge activity with the nanofluid impregnated paper insulating material
AU - Swati, Kumari
AU - Sarathi, R.
AU - Sharma, Kartik S.
N1 - Publisher Copyright:
© 2017 IEEE.
PY - 2017/12/18
Y1 - 2017/12/18
N2 - In the present work, thermal ageing of oil impregnated pressboard material in mineral oil and nanofluid was carried out and fundamental characteristics viz surface discharge inception voltage under high frequency AC voltages and with harmonic voltages with different THDs are studied. It is observed that SDIV increases with increase in supply voltage frequency. Also, on thermal ageing, reduction in SDIV is observed, irrespective of frequency of the AC voltage. Also, increase in harmonic frequency with increase in THDs showed reduction in SDIV. In addition, charge accumulation studies are carried out. It is observed that three layers of OIPs store more charge and dissipates slowly. Also, negative charges get accumulated more than positive charges. PRPD analysis shows that the surface discharge activity on OIPs occurs near to the peak of the AC voltage and with harmonic AC voltages when dv/dt is high.
AB - In the present work, thermal ageing of oil impregnated pressboard material in mineral oil and nanofluid was carried out and fundamental characteristics viz surface discharge inception voltage under high frequency AC voltages and with harmonic voltages with different THDs are studied. It is observed that SDIV increases with increase in supply voltage frequency. Also, on thermal ageing, reduction in SDIV is observed, irrespective of frequency of the AC voltage. Also, increase in harmonic frequency with increase in THDs showed reduction in SDIV. In addition, charge accumulation studies are carried out. It is observed that three layers of OIPs store more charge and dissipates slowly. Also, negative charges get accumulated more than positive charges. PRPD analysis shows that the surface discharge activity on OIPs occurs near to the peak of the AC voltage and with harmonic AC voltages when dv/dt is high.
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U2 - 10.1109/ICHVEPS.2017.8225860
DO - 10.1109/ICHVEPS.2017.8225860
M3 - Conference contribution
AN - SCOPUS:85042769387
VL - 2017-January
T3 - International Conference on High Voltage Engineering and Power Systems, ICHVEPS 2017 - Proceeding
SP - 18
EP - 22
BT - International Conference on High Voltage Engineering and Power Systems, ICHVEPS 2017 - Proceeding
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2017 International Conference on High Voltage Engineering and Power Systems, ICHVEPS 2017
Y2 - 2 October 2017 through 5 October 2017
ER -