LW27-35KV
LW27-35kV is an outdoor three-phase AC high voltage SF6 circuit breaker designed for 35kV (40.5kV class) power transmission and distribution systems. It uses SF6 gas as insulation and arc extinguishing medium, equipped with spring operating mechanism, and meets IEC and GB standards.
This breaker is mainly used in power substations, industrial and mining enterprises, power plants and distribution networks to control and protect circuits. It can reliably switch load current and short-circuit current, with stable performance, low gas leakage rate, long mechanical life and easy maintenance.
It is widely used in outdoor power grid construction, renovation projects and industrial power systems, providing safe and stable protection for 35kV power equipment.
This breaker is mainly used in power substations, industrial and mining enterprises, power plants and distribution networks to control and protect circuits. It can reliably switch load current and short-circuit current, with stable performance, low gas leakage rate, long mechanical life and easy maintenance.
It is widely used in outdoor power grid construction, renovation projects and industrial power systems, providing safe and stable protection for 35kV power equipment.
Product Details
Rated voltage 35kv Rated current A 1250,2000,2500,3150 Rated frequency Hz 50
Rated short-circuit breaking current kA 40 31.5
Rated short-time withstand current and duration kA/s 40/4 31.5/4
Rated peak withstand current kA 100 80
Rated closing current peak kA 100? 80
Rated short-time power frequency withstand voltage effective value break kV 95+23.4 160+42 to ground 95 160
Rated lightning impulse withstand voltage break kV 185+33 350+59 to ground 185 350 Creepage distance mm/kV 31 31
Full breaking time ms ≤60
Inherent opening time ms ≤30
Closing time ms ≤100
Mechanical life times 10000
Rated operation sequence? O-0.3s-CO-180s-CO or O-15s-CO SF6 gas rated pressure MPa 0.50, 0.40 SF6 gas alarm/lockout pressure MPa 0.45/0.40, 0.35/0.30 Control circuit rated voltage V DC220/110
Energy storage motor circuit rated voltage V DC220/110 AC220/110
Rated back-to-back capacitor bank breaking current A 1500,2000 2000
Rated short-circuit breaking current breaking times times 20 Rated shunt reactor switching current A 1600,2000 1500 LW24- 40.5/72.5
Rated short-circuit breaking current kA 40 31.5
Rated short-time withstand current and duration kA/s 40/4 31.5/4
Rated peak withstand current kA 100 80
Rated closing current peak kA 100? 80
Rated short-time power frequency withstand voltage effective value break kV 95+23.4 160+42 to ground 95 160
Rated lightning impulse withstand voltage break kV 185+33 350+59 to ground 185 350 Creepage distance mm/kV 31 31
Full breaking time ms ≤60
Inherent opening time ms ≤30
Closing time ms ≤100
Mechanical life times 10000
Rated operation sequence? O-0.3s-CO-180s-CO or O-15s-CO SF6 gas rated pressure MPa 0.50, 0.40 SF6 gas alarm/lockout pressure MPa 0.45/0.40, 0.35/0.30 Control circuit rated voltage V DC220/110
Energy storage motor circuit rated voltage V DC220/110 AC220/110
Rated back-to-back capacitor bank breaking current A 1500,2000 2000
Rated short-circuit breaking current breaking times times 20 Rated shunt reactor switching current A 1600,2000 1500 LW24- 40.5/72.5
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