Search Results - "Montanari, G.C."

Polymer nanocomposites as dielectrics and electrical insulation-perspectives for processing technologies, material characterization and future applications by Tanaka, T., Montanari, G.C., Mulhaupt, R.

“…Polymer nanocomposites are defined as polymers in which small amounts of nanometer size fillers are homogeneously dispersed by only several weight percentages…”
Get full text

Electrical aging and life models: the role of space charge by Mazzanti, G., Montanari, G.C.

“…This paper has the aim of providing a view of a lively debated topic which has broad impact on the design of electrical apparatus and new insulating materials,…”
Get full text

Relation between space charge accumulation and partial discharge activity in enameled wires under PWM-like voltage waveforms by Fabiani, D., Montanari, G.C., Cavallini, A., Mazzanti, G.

“…It has been observed that voltage waveforms generated by power electronic converters may affect significantly the reliability of electric motor insulation…”
Get full text

A space-charge based method for the estimation of apparent mobility and trap depth as markers for insulation degradation-theoretical basis and experimental validation by Mazzanti, G., Montanari, G.C., Alison, J.M.

“…Assuming that aging of polymeric insulation consists of irreversible chemical-physical and microstructural modifications, effective ageing markers could be…”
Get full text

Modification of electrical properties and performance of EVA and PP insulation through nanostructure by organophilic silicates by Montanari, G.C., Fabiani, D., Palmieri, F., Kaempfer, D., Thomann, R., Mulhaupt, R.

“…Nanostructured materials are attracting increased interest and applications. Exciting perspectives may be offered by electrical insulation. Polymeric…”
Get full text

The electrical degradation threshold of polyethylene investigated by space charge and conduction current measurements by Montanari, G.C.

“…Measurement of dc charging current and space-charge observations, performed on specimens made by low-density polyethylene (PE) and crosslinked PE, are…”
Get full text

A new methodology for the identification of PD in electrical apparatus: properties and applications by Cavallini, A., Montanari, G.C., Puletti, F., Contin, A.

“…Applications of a new methodology, aimed at the identification of defects occurring in insulation systems of HV apparatus and based on partial discharge (PD)…”
Get full text

Progress in electrothermal life modeling of electrical insulation during the last decades by Montanari, G.C., Mazzanti, G., Simoni, L.

“…This paper has the purpose of highlighting the achievements during the last decades in life modeling under electrothermal stress. Phenomenological and physical…”
Get full text

Effect of supply voltage frequency on testing of insulation system by Cavallini, A., Montanari, G.C.

“…This paper deals with the effect of supply frequency on partial discharge phenomena. Results of measurements performed on artificial and practical test objects…”
Get full text

From LDPE to XLPE: investigating the change of electrical properties. Part I. space charge, conduction and lifetime by Montanari, G.C., Laurent, C., Teyssedre, G., Campus, A., Nilsson, U.H.

“…This paper discusses the results of space charge, conduction current and electrical lifetime measurements performed on widely-used materials for electrical…”
Get full text

Digital detection and fuzzy classification of partial discharge signals by Contin, A., Cavallini, A., Montanari, G.C., Pasini, G., Puletti, F.

“…This paper deals with digital acquisition, classification and analysis of the stochastic features of random pulse signals generated by partial discharge (PD)…”
Get full text

A novel method to diagnose PWM-fed induction motors by Cavallini, A., Fabiani, D., Montanari, G.C.

“…A novel method for measurement and interpretation of PD phenomena in inverter-fed motors is discussed in this paper. The interpretation of PD measurements is…”
Get full text

Space charge phenomenology in polymeric insulating materials by Montanari, G.C., Morshuis, P.H.F.

“…Topics related to space charge phenomenology, particularly the origin of space charge and its interaction with the host insulating polymer, have been widely…”
Get full text

Technical Development on Partial Discharge Measurement and Electrical Insulation Techniques for Low Voltage Motors Driven by Voltage Inverters by Okubo, H., Hayakawa, N., Montanari, G.C.

“…This paper reviews the up-to-date research activities on electrical insulation techniques under repetitive surge voltages with steep wavefront for low voltage…”
Get full text

Quantities extracted from space-charge measurements as markers for insulation aging by Mazzanti, G., Montanari, G.C., Palmieri, F.

“…The relation of space charge-derived quantities with aging stresses and time is discussed in this paper. Polyethylene-based materials, aged for different times…”
Get full text

A novel method to locate PD in polymeric cable systems based on amplitude-frequency (AF) map by Cavallini, A., Montanari, G.C., Puletti, F.

“…A new technique for partial discharge (PD) source location in cable systems is presented in this paper. Such technique, here referred to as amplitude-frequency…”
Get full text

PD detection in extruded power cables: an approximate propagation model by Tozzi, M., Cavallini, A., Montanari, G.C., Burbui, G.L.G.

“…In order to improve partial discharge (PD) detection and location in extruded power cables, Ultra-Wide Bandwidth detectors (UWB) can be preferred to wide- and…”
Get full text

Evaluation of dc insulation performance based on space-charge measurements and accelerated life tests by Montanari, G.C., Fabiani, D.

“…Space charge observation is becoming the most widely used technique to evaluate polymeric materials for dc insulation applications, particularly HV cables…”
Get full text

Demonstrating a threshold for trapped space charge accumulation in solid dielectrics under DC field by Dissado, L.A., Laurent, C., Montanari, G.C., Morshuis, P.H.F.

“…This paper presents a discussion of the concept of threshold for trapped space charge accumulation in solid dielectrics submitted to a DC field. The starting…”
Get full text

The role of trapped space charges in the electrical aging of insulating materials by Dissado, L.A., Mazzanti, G., Montanari, G.C.

“…An investigation of the effect of trapped space charges on the aging of polymeric insulating materials subjected to thermo-electrical stress is reported in…”
Get full text