Impulse generator is an indispensible high voltage set. It simulates the voltage due to lightning and switching surges and used for testing of insulation of various electrical equipments like transformer, insulators etc.The standard impulse waveform could be used to test the strength of electrical equipments against the lightning.Lightning characteristics and standard impulse wave form are rela...

With the advent of technology and increased use of Internet, we have seen the growth of online shopping increasing throughout the years. This phenomenon has given rise to impulse purchasing behaviour online which is an area that has not been thoroughly studied by marketing researchers. This paper provides insights into consumers’ buying behaviours, both planned and impulse and in both tradition...

The performance of the power system depend on the reliability of its components such as Transformer, transmission lines, circuit breakers etc. National and international standards stipulates a lighting impulse voltage of 1.2/50 when impulse voltage testing electrical equipments. The high voltage Impulse test the with stand capability of power transformer. Then the problems associated in practic...

The application of lightning impulses to polymer insulation, including composite insulators, can result in the deposition and retention of significant quantities of charge on the surfaces. This is very evident after withstand impulses near U50. The presence of retained charge means that the polymer test object has a memory of preceding impulses and this compromises the main requirement for dete...

Determining the voltage linearity of a large impulse voltage divider used in the testing of ultra-high-voltage (UHV) equipment is a challenging task. This leads to the question of whether the uncertainty requirements, specified in the present edition of IEC60060 [1, 2], can be met in the UHV range. This paper presents the results of voltage divider linearity tests at voltages up to 2400 kV. Mea...

Abstrac t This paper describes a method for restraining electromagnetic interference received by reference meter clearly not caused by watt-hour meter under test by means of pulse width testing circuit. The method is adopted to resolve the problems often occurred in the type tests of watt-hour meters. During the EMC test of watt-hour meters, the tester can’t confirm the additional error due to ...