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Browsing by Author "Chahal, J.S."

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Dependence of space charge dynamics in LDPE on history of voltage application

Chahal, J.S.; Reddy, C.C. (2016-11-18)

The space charge phenomenon in PE (polyethylene) particularly in LDPE (low density polyethylene) is being widely researched for more than two decades. Despite various theories proposed by researchers, the charge dynamics ...
Dynamics of leakage current in LDPE under different types of high field application

Reddy, C.C.; Chahal, J.S. (2016-12-12)

—For high voltage dc cable insulation, LDPE is considered as a prospective material. With increasing voltage levels of power transmission, the need for understanding high filed phenomena is also increasing. In general ...
Modeling and simulation of pulsed electroacoustic measurement method

Chahal, J.S.; Reddy, C.C. (2016-11-22)

Pulsed electroacoustic (PEA) method is a very popular method for measurement of charge in dielectrics. In this method, an acoustic wave proportional to charge is generated by a pulsed HV. The acoustic wave traverses several ...
Modelling the effect of amplifier response in pulsed electroacoustic system

Chahal, J.S.; Reddy, C.C.; Tiwana, A.P.S.; Gupta, A. (2016-11-23)

The Pulsed Electroacoustic method has been widely used in research labs and industries for space charge measurement for quite some time. Due to its robustness and simplicity it has attracted great attention of ...
Modelling, simulation development of PEA system for space charge measurements at high electric fields

Chahal, J.S. (2016-12-20)

Insulation design of High Voltage Direct Current (HVDC) cables at high voltages is quite challenging. At higher electric fields peculiar space charge formation might take place in polymeric insulation. One of the effects ...
Role of external and internal parameters on the space charge formation in dielectrics

Reddy, C.C.; Chahal, J.S.; Gupta, A.; Tiwana, A.P.S. (2016-11-23)

Space charge accumulation in dielectrics is a hot topic among dielectric research group for more than a decade. The charge accumulation has been observed to be of various types like homo, hetero and packet charge, etc. ...
Role of interfacial surface area on the physical phenomena of nanocomposites

Reddy, C.C; Tiwana, A.P.S.; Gupta, A.; Chahal, J.S. (2016-11-25)

Improvement in the material properties of nanocomposite materials is often stated to be because of the interfacial surface area (ISA) or interfiller distance (IFD). Several models were suggested for understanding the ...
Some investigations on packet charge formation in LDPE

Chahal, J.S.; Reddy, C.C. (2016-12-12)

The HVDC (high voltage direct current) transmission through cable is being seen as an alternative to augment the regional connectivity. The major hindrance to HVDC transmission, beyond a certain voltage through cable, ...
Space charge dynamics in LDPE

Chahal, J.S.; Reddy, C.C. (2016-11-18)

Now a days HVDC cables with polymeric insulation such as LDPE (Low Density Polyethylene), XLPE (Cross Linked Polyethylene) are widely used as compared to conventional oil impregnated HVDC cables. The polymeric insulation, ...
Transmission line model for acoustic signal propagation in PEA system

Chahal, J.S.; Tiwana, A.P.S.; Gupta, A.; Reddy, C.C. (2016-11-23)

Pulsed Electro-Acoustic Method is widely used for the measurement of charge in polymeric insulation. The method is based upon the generation of acoustic wave proportional to charge and pulsed electric field. This acoustic ...

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