SFM-40.5 Indoor High Voltage SF6 Circuit Breaker
- Altitude: ≤2000m (4000m for high-altitude product)
- Ambient temperature: -25°C~+40°C
- Relative humidity: Monthly average≤90%；Daily average≤95%
- Vapor data: Monthly average≤1.8kPa; Daily average≤2.2kPa
- Earthquake intensity: 8 degree
- The amplitude of electromagnetic interference induced in the secondary system is not more than 1.6kV
- Not significantly affected by dust, smoke, corrosive gases, flammable gases, vapors, salt spray
Structure feature
- Breaking in SF6 gas takes place without any arc chopping or generation of over-voltages.
- Equipped with CT100 operating system.
- Lightweight operation with screw-nut propulsion device.
- Excellent insulation performance meets the needs for high altitude, condensation, and second grade contaminated environment.
- Build to the highest quality standards with excellent performance in corrosion resistance, abrasion resistance, and conductive electricity.
- Ideal for the applications of switchgear includes KYN61-40.5, JYN-40.5, GBC-40.5, XGN17-40.5, etc.
Item | Unit | Data | |||||
Rated voltage | kV | 40.5 | |||||
Rated power frequency withstand voltage (1min) | kV | 95 | |||||
Rated lightning impulse withstand voltage (peak) | kV | 185 | |||||
Rated current | A | 1250/1600/2000 | |||||
Rated short circuit breaking current | kA | 31.5 | |||||
Rated short circuit closing current | kA | 80 | |||||
Rated withstand current (peak) | kA | 80 | |||||
Rated short-time withstand current | kA | 31.5 | |||||
Rated short circuit duration | s | 4 | |||||
Breaking times of rated short-circuit breaking current | Times | 20 | |||||
Mechanical life | Times | 10000 | |||||
Rated operating sequence | O-0.3s-CO-180s-CO | ||||||
Rated operating voltage | V | AC/DC110 AC/DC220 | |||||
Closing time | ms | ≤150 | |||||
Opening time | ms | ≤75 | |||||
| Yearly gas leakage rate | % | ≤0.5 | |||||
| SF6 Gas rating pressure (20°C） | Mpa | 0.65 | |||||
Rated locking pressure (20°C） | Mpa | 0.59 | |||||
Single capacitor bank breaking current | A | 800 | |||||
Outline and installation dimensions
SFM-40.5 Indoor High Voltage SF6 Circuit Breaker
SINOAMIGO POWER T&D include below:
VCB & Operation Mechanism: Zhejiang Juli Electric Co.,Ltd
Zhejiang Juli Electric Co.,Ltd. Focus on VCB Operating Mechanism, Vacuum Circuit Breaker, Recloser Controller for VCB, include R&D, manufacturing, marketing and after service, honored as a member of High-Technology corp in China, now employees more than 300 and technician team more than 35%. Started since 2000, with headquarter in Liushi Town, Wenzhou City,China, where were named as the China electricity capital centre; Company pay a lot capacity and time for R&D, cooperate with many famous University intelligence and famous brand enterprises.
Sino Amigo, your China friends; Wherever you go, SINOAMIGO
