Electroshield Samara started production of column-type SF-6 circuit breakers of rated voltage 110 kV under the license agreement with Siyuan Electric Ltd. (P.R.C.). Circuit breakers are designed for switching electrical circuits under normal and emergency conditions in three-phase AC networks.
Advantages of SF-6 circuit breaker VGT-SESH-110:
SF-6 circuit-breaker VGT-SESH-110 is used both for new construction in 110 kV complete transformer substations, and for replacing circuit breakers that have exhausted their life cycle, isolators, short-circuiting switches.
|Description||VGT-SESH 110 kV|
|Rated voltage, kV||110|
|Maximum operating voltage, kV||126|
|Rated frequency, Hz||50|
|Power frequency test voltage (1 min), kV||230|
|Full lightning impulse test voltage, kV||650|
|Rated current, A||1250, 1600, 2000, 2500, 3150|
|Rated breaking current, kA||25; 31,5;40|
|Short-circuit current flow time, s||5|
|Short-time electrodynamic current (maximum peak), kA||63;80;102|
|Standard dead time upon automatic reclosing, s||0,3|
|Weight, no less than, kg||1500|