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  1. SALTEK
25 July 2022

Upgraded SALTEK VLD2 Has Top Withstanding Parameters

SALTEK has upgraded its VLD class 2.2 products (BVL series) to get a better mid-time repeatable and withstand current parameters. This improvement is based on frequent customer requirements to have a heavy duty recoverable VLD-O for places with no auxiliary power (power supplied through independent devices) and with the occurrence of high amplitude and long period leakage currents when a VLD-O is activated. Using special cooling elements made from SiAl alloy and robust terminals, our BVLs have reached great values of repeatable energy loads up to 1.600 Amps at 30 seconds. Such a mid-time load meets most requirements to protect metro or train stations, workshops, and more, even if the railway infrastructure is not in good condition.

In rail transport, both underground and above-ground railway or tram, attention is turned to the safety and reliability of the traffic, and to the protection...
Voltage limiting devices (VLDs) are an essential part of the comprehensive protection of electrified railway systems.
Electric railways are using rails as a robust electrical conductor for return currents from the trainsets back to the power supply substations.
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