Equipments for High-Frequency Heating

Partial discharge signal detection using ultra high frequency method in high voltage power equipments: a review

Partial discharge (PD) can be detected using ultra high frequency (UHF) method to increase the detection threshold and to improve the performance of on-line measurement of PD in noise environment. The PD emitted energy as electromagnetic emission, acoustic emission and ozone and nitrous oxide gases. We can use this emitted energy to detected PD signal. The best method to detect PD in gas insula...

High Frequency Gyrotrons and Their Application to Tokamak Plasma Heating

High frequency (> 200 GHz) gyrotrons are potentially useful for several important applications, including plasma heating and radar. For electron cyclotron resonance heating of a moderate-size, high power density tokamak power reactor to ignition temperatures, a gyrotron frequency around 200 GHz appears to be necessary. The design of high frequency gyrotrons is discussed. Analysis of overall gyr...

protection against electromagnetic fields of industrial frequency, in electrical equipments of ultra high voltage

in the two issues (no 26 & 27) we gave a brief knowledge about the influence of electromagnetic fields on human beings. to protect against headache, insomnie, tiredness, and heart troubles, special metallized cloth is discribed, the efficiency of the metallized cloth and other protectives in u. h. v , finally is discussed.

Microwave and Radio Frequency Heating

Frequency Selectable Induction Heating Targets

This paper examines a scheme for developing frequency selectable induction heating targets for stimulating temperature sensitive polymer actuators. “Frequency selectable” implies that each target has a frequency at which it heats preferentially compared to other remaining targets. Single-turn conductors whose critical dimensions are small compared to their associated skin depth (over the freque...