JAKARTA – Recently the Chinese government announced the launch of a train that uses magnetic power. The train uses the world's first permanent magnetic levitation (PML).
China tested a magnetic levitation train (Maglev) on an 800-meter-long track in Jiangxi province this August. For information, Maglev trains do not use wheels like trains in general. The carriage hangs in the air and will be moved using a set of magnets on it.
According to SputnikNews, most maglevs rely on superconducting magnets – super-cooling magnets allow trains to reach speeds that are close to those of modern airplanes due to the lack of friction in the process. However, maintaining a very low magnetic temperature is complicated and energy intensive.
Unlike the magnet-powered train in general, this Chinese-made Maglev train uses a permanent earth magnet. Even so, this technology still uses electrical energy to drive trains but uses less than superconducting magnets.
During train stops, permanent magnet levitation or PML is claimed to consume no electricity. China assesses that PML is 31% more energy efficient than alternative superconductors. By using PML, the train will move faster.
In its trials in Jiangxi province, the Maglev train has a speed of 80 kilometers per hour carrying two carriages with a capacity of 88 passengers. The use of magnetic power technology is a new technology, more efficient in energy consumption, faster and close to perfection.
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