Essays about: "Underground cable"

Showing result 1 - 5 of 7 essays containing the words Underground cable.

  1. 1. Application of ERT for Quality Assurance in Jet Grouting Columns; A development of an alternative quality control

    University essay from Lunds universitet/Teknisk geologi; Lunds universitet/Väg- och vattenbyggnad (CI)

    Author : Edvin Nilsagård; Rebecka Knutsson; [2022]
    Keywords : ert; jet grouting; quality control; pygimli; res2dinv; resistivity; Technology and Engineering;

    Abstract : With the increased urbanization major cities are facing, expansion of larger facilities and households are inevitable. Expansion means larger areas of the surface needs to be used where the risk of varying subsurface soil properties increases with larger surface areas. READ MORE

  3. 2. Guidelines to Implement Monitoring and Remote Control System in an Urban Distribution Grid

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Anders Karlsson; [2020]
    Keywords : ;

    Abstract : The distribution grid has traditionally been a robust design where the lines are protected by the primary substation. Constant access to electricity is important for our society, and a power interruption can have large consequences. Power interruptions also reduce the revenue cap, i.e. READ MORE

  4. 3. Eliminating zero-missing phenomenon in long, high voltage, underground cables

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Agnes Linnet; [2019]
    Keywords : Underground cable; zero-missing phenomenon; switching transients; shunt reactors; underexcited generators; Underjordisk kabel; nollbristande fenomen; växlingstransienter; shuntreaktorer; underexiterad generatorer;

    Abstract : The maximum length of an high voltage underground cable (HV UGC) cable is oftenconstrained by the criterion that the cable cannot have more than 50% reactivepower compensation. If this limit is exceeded the current in the circuit breaker maynot have a zero crossing after energization, which is referred to as the zero missingphenomenon. READ MORE

  5. 4. Power cables in battery electric vehicles used in underground mining : Analysis of electromagnetic dynamics in high-power cables and development of application-specific design strategies for reduction of EMI

    University essay from Uppsala universitet/Elektricitetslära

    Author : Chisom Miriam Ekweoba; [2019]
    Keywords : ;

    Abstract : The electrification of the automotive industry is growing in popularity, considering the environmental impacts of the conventional diesel-powered automobile. However, from the electromagnetic compatibility (EMC) viewpoint, it is observed that the use of variable-frequency drives (VFD) and relatively high-power cables to propel electrical motors has led to a considerable rise in electromagnetic interference (EMI) within and outside the machine. READ MORE

  6. 5. Identification and characterization of design fires to be used in performance-based fire design of CERN facilities

    University essay from Lunds universitet/Avdelningen för Brandteknik

    Author : Darko Perovic; [2018]
    Keywords : Fire; Design fire; Vehicle fires; DMS 500; fast particulate analyser; Cone Calorimeter; Smoke characterization; Particle size distribution; Shell Diala; Midel; Cables; cable fires; Electrical cabinets; Electrical racks; CERN; Technology and Engineering;

    Abstract : CERN operates the most complex particle accelerator facility built until today. As such, it consists of thousands of custom-made components spread both in upper ground facilities and in underground tunnels and caverns. READ MORE