Made-In-China Three-phase sf6 electrical circuit breaker

Three-phase AC 50 Hz is the outdoor high voltage electrical equipment for the 35 kV transmission change the control and protection system, contact can be a circuit breaker can also be used for capacitors.

Main features: three-phase separation of mechanical linkage, with parallel transmission and vertical transmission in two ways. Pressure gas and the use of modular interrupter to principle, breaking short-circuit current of 31.5 kA. Arcing short time, longer life expectancy, insulation reliable. Allocation with CT14-type spring actuator, mechanical reliability, closing ability, and long mechanical life. The product can be a direct replacement for SW2-35 oil circuit breakers, 35 kV power system is in the ideal of non-oil circuit breakers, containing a high-precision current transformers, high permeability using performance-ceramic alloy materials. All stainless steel products by the overall structure, panels, box bodies are made of stainless steel stent for hot dip galvanized. No corrosion phenomenon. Complete specifications, operation is broad in scope, ease of installation.

Main technical parameters:

Rated Voltage: 35 kV

The maximum voltage: 40.5 kV

Rated insulation level: lightning impulse withstand voltage (full-wave peak) 185/215 kV (fracture); frequency Pressure (1 minute): 95/118 kV (fracture)

Current Rating: 1600/2000 A 1600/2000/2500A

Mechanical life: 5000

Minimum use of the environment temperature: -40 -30 °C

Rated short-circuit breaking current: 20 25 31.5kA 25 31.5kA

Rated a power short-circuit breaking down the cumulative number: 30 20 15, 20 15,

Closing time (rated operating voltage): ≤ 0.1 s

Gates at the time (rated operating voltage): ≤ 0.06 s

Rated current of a single capacitor group: 400 A

A, the gate voltage coil: AC: 220 V 380V DC: 48 110220 V

Motor voltage energy storage: AC: 220 V DC: 220 V