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  • Transient voltage aspects of grounding
    Index Terms - Lightning protection, transient voltage surge suppressors, TVSS , surge protective devices, SPD, Oilfield lightning, Medium voltage lightning protection, metal oxide varistors, MOV, power system lightning protection, Electric Submersible Pumps, ESP, Medium voltage lightning protection.
  • Microgrids and Active Distribution Networks
    This type of equipment includes the following: (i) UPS (ii) Single-phase TVSS (iii) Single-phase power conditioners, isolation transformers and voltage regulators 2) Medium -scale equipment (less than and up to 100 kVA) is used to protect the low …
  • Transient-Voltage Aspects of Grounding
    The result is that, in these connections, the TVSS voltage must be selected higher than needed to avoid damage from such repetitive peak voltages. For medium -voltage power, current trans- formers and potential transformers are necessary for metering, and they can …
  • A student design project to improve power quality for a commercial facility
    The panelboard-mounted, shunt-connected TVSS is shown in Fig. 1. … an example, the following specifications are provided for the Joslyn Model 1455-1I Medium Duty Subpanel Surge … nominal line voltage : 208 Y I 120volt, 60Hz,3Q, Qwire listinp: UnderwritersLaboratories (a)1449 technolopv:multipleMetal Oxide …
  • Why and how do surge protective devices (SPD) fail: a safety article
    SPD is a common generic term used to define arrestors, transient voltage surge suppressors ( N S S … Arrestors and TVSS are applied to the AC power circuit while protectorsare applied to communicationcircuits. SPD systems use various conductive mediums such as Zinc Oxide, Silicon Carbide, Air, Gaseous Mediums, Carbon, Metal …
  • Cascade Protection with Transient Voltage Surge Suppressors (TVSS) in Variable Speed Drive for Electro-Submergible Pumps
    In Campo Boscan, in order to determine what the best selection of TVSS would be, the residual voltages have been assessed, from which the following Fig. 7 with the correspondent summary graph was obtained: … Wave Voltage and Current Surges Expected in Location Categories A and B Low, Medium and High Exposures …
  • Experimental investigations on triggering characteristic of TVS under DC and AC load
    Triggered vacuum switches ( TVSs ), which are also named as triggered vacuum gaps (TVGs), have fast growing applications … … supply of an electromagnetic launcher (EML) system and synthetic making test of high- voltage circuit breakers for … High insulation level of vacuum medium and the fast diffusion of post-arc plasma make TVS have …
  • Alltec Introduces PowerTrip PTM Series Medium Voltage Surge Protection Devices
    Alltec Introduces PowerTrip PTM Series Medium Voltage Surge Protection Devices This Transient Voltage Surge Suppression ( TVSS ) is specifically designed for heavy duty applications such as: Oil & …
  • EC Online Newsletter: ZigBee Makes Electric Outlets Smart
    Siemens Wins Largest Order For Medium - Voltage Technology Pass & Seymour/Legrand Panel TVSS Units Protect Electronic Equipment From Electrical Surges .

Product Announcements
American Microsemiconductor, Inc.
TE Connectivity - Circuit Protection
Allen-Bradley / Rockwell Automation