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This paper introduces a non-destructive microwave-based detection method which was developed with respect to the detection of internal defects in composite insulators. The test equipment comprised a microwave-generating Gunn oscillator (frequency 24 GHz) combined with an open-ended rectangular waveguide as emitting and receiving sensor operating in the near-field (stand-off distance < 5 mm). The...
The water absorption characteristics of a HTV silicone rubber material were investigated at different relative air humidity (RH). The two-sided water absorption process into disc-like HTV samples at different RH can be described by a Langmuir type diffusion model. The permeation process of water vapor through HTV discs was quantified by adjusting different constant RH at both sides of the discs. The...
Water absorption behavior of disk-like mineral filled epoxy resin insulators is determined by measuring the change of weight at different relative air humidity. Bulk current measurements with epoxy resin samples which have reached their absorption equilibrium during storage at various relative humidity are carried out and a significant decrease of the volume resistivity is observed with increasing...
The SPIROC chip is a dedicated very front-end ASIC chip for an ILC hadronic calorimeter technical prototype with Silicon Photomultiplier (or MPPC) readout. This ASIC is due to equip a 2,000-channel demonstrator in 2009. The SPIROC chip is the successor of the ILC SiPM ASIC presently used for the ILC AHCAL physics prototype, incorporating additional features like auto-triggering, pipelines, digitization...
In multinational companies, English is used more and more as a "lingua franca" for international collaboration. This is for example true for a unit like Siemenspsila Program and System Engineering Division SIS PSE, with headquarters in Austria and subsidiary units in many European countries and China. This article will initially present the concept of ELF (English as a lingua franca), which...
The influence of relative air humidity on the surface charge decay on epoxy resin insulators initially charged by DC corona and on their surface resistivity is investigated at room temperature. It has been observed, that surface resistivity of the epoxy resin insulators decreases significantly at higher relative humidity. Thus, at higher relative humidity surface charge decay is dominated by electric...
Siemens Austria's Program and System Engineering Division SIS PSE has moved away from the classic approach of offering training via an in-house Training Center towards a new approach called "Learning Network ". This Learning Network is part of PSE wide international knowledge networking, and consists of about 100 internal trainers, who perform their training activities beside their main...
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