ZW20-12 Outdoor Vacuum Circuit Breaker
Selection Operating conditions 1. Altitude≤2000 meters 2. The environment temperature: -30℃ ~+55℃ outdoor; the highest annual average temperature 20 ℃, the highest daily average temperature 30 ℃; 3. Relative humidity: 95% (25℃) 4. Seismic capacity: horizontal ground acceleration 0.3g, vertical ground acceleration 0.15g, at the same time duration of three sine waves, a safety factor of 1.67 5. Earthquake intensity: 7 degrees 6. The maximum daily temperature difference: 25 ℃ 7. The intensity o...
YRM6-12/24 Gas-insulated Metal-enclosed Switchgear
Selection Operating conditions 1. Ambient air temperature: -40℃~+40℃; 2. Relative air humidity: daily average <95%, monthly average <90%; 3. Altitude ≤1500m (under standard inflation pressure); 4. Seismic intensity <9 class; 5. Places free from fire, explosion, serious contamination, chemical corrosion and severe vibration. Special conditions Manufacturers and end users must agree on special Operating conditions that are different from normal operating cond...
GW9 Outdoor Isolation Switch
Selection Operating conditions 1. The altitude does not exceed 1000m. 2. The ambien t air temperature: Maximum+40℃: Minimum: General Area-30℃, Paramos-40℃ . 3. The wind pressure does not exceed 700Pa. 4. The earthquake intensity does not exceed 8 degrees. 5. The working situation without frequent violent vibration. 6. The installation site of ordinary type isolator s hould be kept away from gas,smoke chemical deposition, salt-spray-fog, dust and other and corrosive maters that affect serious...
ZN23-40.5 Indoor Vacuum Circuit Breaker
Selection Operating conditions 1. The environment temperature: upper limit +40℃, lower limit -15℃ (cold area -25℃); 2. Altitude: not more than 2000m; 3. Relative humidity: daily average value is not greater than 95%, monthly average is not greater than 90%; 4. Saturated steam pressure: daily average value is not higher than 2.2 × 10 -3 Mpa,monthly average is not higher than 1.8×10-3 Mpa; 5. Earthquake intensity does not exceed 8 degrees; 6. No fire, explosion, pollution, chemical corrosion a...
ZN63M-12 (Magnetic type) Indoor Vacuum Circuit ...
Selection ZN63M - 12 P M 630 - 25 HT P210 Name Rated voltage(KV) Pole type Operating mechanism Rated current(A) Rated short-circuit breaking current(KA) Installation Phase spacing Indoor vacuum circuit breaker 12:12KV No mark: Insulating cylinder type P Solid -sealing type M: Insulating cylinder type permanent magne 630, 1250, 1600, 2000, 2500, 3150, 4000 20, 25, 31.5, 40 HT: Handcart FT: Fixed type P150, P210, P275 Note: The phase spacing of ZN63-12□M is usually P210mm, whic...
JN22-40.5/31.5 Indoor Grounding Switch
Selection Operating conditions 1. Ambient temperature:-10~+40℃ 2. Altitude: ≤1000m 3. Relative humidity: Day average relative humidity ≤95% Month average relative humidity ≤90% 4. Earthquake intensity: ≤8degree 5. Appliable in the place without corrosive, flammable gas and water place 6. With no frequently intense vibrant place around. Technical data Item Units Data Rated voltage kV 35 Maximum voltage kV 40.5 Rated short time withstand current kA 31.5 Rat...