Harmonization of Global Mining & Tunneling Equipment Power Supply Systems: Theory, regulatory environment & multivoltage concept
Laukkanen, Mikko (2021)
Laukkanen, Mikko
2021
All rights reserved. This publication is copyrighted. You may download, display and print it for Your own personal use. Commercial use is prohibited.
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:amk-2021111520256
https://urn.fi/URN:NBN:fi:amk-2021111520256
Tiivistelmä
The purpose of this Bachelor’s Thesis was to create a framework of requirements for a global power supply system for mining and tunneling equipment. Based on the framework, concepts for a global power supply system were formulated. The thesis was commissioned by Normet Oy.
First in this thesis, the power supply systems in mining and tunneling were examined and the supply voltage levels of sold Normet equipment were analyzed. The quality of electricity and harmonics related to mining were examined. Next, research on mining equipment power supply systems was conducted. Solutions and patents by mining equipment manufacturers were examined. Next, worldwide standards and regulations relating to power supply system of mining and tunneling equipment were researched and examined. Next, the sprayed concrete technology was researched and the Spraymec 8100 was presented generally. The power supply system of the Spraymec 8100 was examined.
As a result of this thesis, a framework of requirements for the global power supply system was formulated, based on the research conducted. Utilizing the framework, concepts for the global power supply system were created in. Concepts utilizing transformers, star-delta connections & motors rated for multiple voltages, and concepts utilizing frequency converters were formulated. The formulated concepts were deemed inadequate for the power supply system as is. Additional research and discussions with the OEMs are needed to realize an applicable solution.
First in this thesis, the power supply systems in mining and tunneling were examined and the supply voltage levels of sold Normet equipment were analyzed. The quality of electricity and harmonics related to mining were examined. Next, research on mining equipment power supply systems was conducted. Solutions and patents by mining equipment manufacturers were examined. Next, worldwide standards and regulations relating to power supply system of mining and tunneling equipment were researched and examined. Next, the sprayed concrete technology was researched and the Spraymec 8100 was presented generally. The power supply system of the Spraymec 8100 was examined.
As a result of this thesis, a framework of requirements for the global power supply system was formulated, based on the research conducted. Utilizing the framework, concepts for the global power supply system were created in. Concepts utilizing transformers, star-delta connections & motors rated for multiple voltages, and concepts utilizing frequency converters were formulated. The formulated concepts were deemed inadequate for the power supply system as is. Additional research and discussions with the OEMs are needed to realize an applicable solution.