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Author: Farzad Vesali

PANTOhealth <> Railway summit 2021

PANTOhralth is proud to be among sponsors of the International Railway Summit, an event that gathers key customers and carefully selected technical experts of railways industry together. The 10th edition (IRS10) of the summit will be held online on 23-26 February. The unique opportunity that this summit provide is matching buyers’ project requirements with experts’…
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Can you feel a Pantograph? No, but elephants can!

Pantographs and Elephants are both interested in “Infrasounds”​, 0.5-20 Hz. Elephants can communicate using very low-frequency sounds, with pitches below the range of human hearing. These low-frequency sounds, termed “infrasounds,” can travel several kilometres, and provide elephants with a “private” communication channel that plays an important role in elephants’ complex social life. Their frequencies are…
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When a solution makes a new problem! Thermal ice melting of the contact wire locks the tension wheels in the tunnels and causes high tension.

Most of the overhead catenary systems are suffering from icing in winter. De-icing technology can be divided into three categories, which are thermal melting ice, mechanical icebreaking, natural passive methods. Vibropantographs or secondary “ice cutter” pantographs are some examples of mechanical icebreaking. You can read more in this article. The main week point of mechanical ice…
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Pantograph & catenary interaction: wave reflection at the end spans of a mechanical section and pantographs contact quality.

The contact force between pantograph and catenary is the most important parameter that should be considered and monitored. Contact force fluctuation is the opposite of contact quality. The more standard deviation in contact force you have, the less contact quality you have. The reason for contact force variation is either non-uniform vertical elasticity of catenary…
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