Arcteq was selected as a relay supplier for the Hsueshan Tunnel retrofit project in Taiwan. The 13-kilometer long tunnel, also known as Snow Mountain Tunnel, connects to and from Taipei. It is Asia’s second longest and the world’s sixth longest tunnel to date.
Within Arcteq’s scope of supply there are AQ-B398 devices for 161-kV busbar protection, AQ-T393 devices for 161/23.9-kV three-winding transformer protection, and over 60 devices in total of AQ-F215 and AQ-F210 feeder protection relays that protect, control, and provide accurate measurements on the tunnel’s power distribution feeders. All Arcteq devices use the IEC 61850 protocol to communicate with supervisory control and energy management systems. An integrated arc protection card with respective arc sensors was included in selected AQ-F215 units to further enhance switchgear safety by providing less than a 10-ms trip time in case of an internal arc fault in the 23.9-kV switchgear.
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