Posts tagged as Vacuum

Applying vacuum switchgear at transmission voltages

  Vacuum switchgear has been in extensive use in distribution systems for 30 years for the making and breaking of (fault) current and the switching of loads of all possible nature. The reliability and performance records of the vacuum switching technology are outstanding in the medium voltage range (up to 52 kV), having led to […]

Thermoselective vacuum encapsulation

  After many years of research, MTM Power has developed a unique encapsulation technology: thermoselective vacuum ecapsulation. Thus, MTM Power modules are completely resistant against shock and vibration as well as dust and humidity. Due to the extreme hard cover – the result of the thermoselective vacuum ecapsulation– they are absolutely robust, shock resistant, insensitive to mechanical stress, and free […]

Portable kit for on-site pressure calibration

  Leitenberger, represented in southern Africa by Instrotech, offers four portable pneumatic and hydraulic pressure kits for on-site calibration. The LPP 40 pressure test pump (pneumatic) generates pressures up to +40 bar, switchable to create vacuum up to -0,95 bar for checking, adjusting and calibrating mechanical and electronic pressure measuring instruments; the LPP 60-T compact calibration […]

EMI shielding effectiveness in conductively coated plastics

  Conductively coated plastics are becoming increasingly popular for EMI shielding. Vacuum metallising is a cost effective way to get fast turnaround in small quantities. Commonly, shapes can be complex, making it impossible to get absolutely uniform coatings. The article covers comparative shielding effectiveness (SE) tests on various configurations, primarily to assess the impact of […]