T&D

Siemens Offers 4000 A Vacuum Circuit Breaker for Frequent-Operation Applications

Siemens has launched a refined medium-voltage circuit-breaker. The 3AH4 vacuum circuit-breakers have an operating current of 4000 A for the 36-kV voltage level. It is the first vacuum circuit-breaker ...
Railway Technology

Innovative AC Vacuum Circuit Breaker from Schaltbau

Munich – Schaltbau has introduced a special innovation for AC-driven electric locomotives and multiple units: an AC vacuum circuit breaker that can almost do without any secondary supply energy for ...
中国日报网

State Grid Shizuishan Power Supply Company: China's first new type of precision phase-controlled switching fast vacuum circuit breaker has been successfully put into operation

At 18:36 pm on Nov 13, following the issuance of instructions from the dispatching center, the circuit breaker 31322 of the No 5 capacitor in the Taole 220 kilovolt substation in the Shizuishan area ...
manilatimes

China's first new type of precise phase-controlled fast vacuum circuit breaker for cutting was successfully put into operation

SHIZUISHAN, China, Nov. 27, 2024 /PRNewswire/ -- Recently, the No. 5 capacitor 31322 circuit breaker of Taole 220 kV substation in the Shizuishan area was successfully closed, marking the successful ...