Product Details
35KV sulfur hexafluoride circuit breaker is a three-phase AC 50Hz outdoor high-voltage electrical equipment, suitable for the control and protection of 40.5KV power transmission and distribution system, and can also be used as a contact circuit breaker and opening and closing capacitor bank occasions.
Main features of 35KV sulfur hexafluoride circuit breaker
The product has excellent breaking performance, adopts compressed gas arc extinguishing chamber, short arcing time, long electrical life, and continuously breaks 31.5kA short-circuit current 21 times at rated voltage without maintenance LW8-40.5 outdoor high-voltage sulfur hexafluoride circuit breaker
No sulfur hexafluoride gas is replaced; high mechanical reliability. Mechanical life is more than 3000 times; can be operated frequently, each can be equipped with 12 current transformers for users to choose. The product adopts a new MKZ type SF6 pointer density meter, the pressure gauge reading is not affected by temperature changes, and is easy to use.
The circuit breaker meets the requirements of the national standard GB1984-89 "AC High Voltage Circuit Breaker" and the Electric Power Committee standard IEC56 publication "High Voltage AC Circuit Breaker".
This product is equipped with CT14 spring mechanism.
3. Main technical parameters
LW8-40.5 outdoor high-voltage sulfur hexafluoride circuit breaker
No. Project name Parameter
1 Rated voltage (kV) 40.5
2 Rated current (A) 2000
3 Rated short-circuit breaking current (kA) 31.5
4 Rated out-of-step breaking current (kA) 7.9
5 Rated opening and closing current of a single capacitor bank (A) 400
6 Rated operation sequence Open-0.3s-Close-Open-180s-Close-Open
7 Rated filling pressure of SF6 gas (MPa) 0.45
8 Opening time (ms) ≤60
9 Closing time (ms) ≤100
10 Opening speed (m/s) 3.4
11 Closing speed (m/s) 3.2
12 Circuit breaker weight (kg) 1400
4. Main parameters of CT14 spring mechanism
Closing coil a.c.220V,3.5A d.c.110V,3.6A d.c.220V,1.8A
Disconnection coil a.c.220V,3.5A d.c.110V,4.8A d.c.220V,2.4A
Motor a.c.220V,5A d.c.220V,5A d.c.110V,10A
Energy storage time ≤15s
5. Environmental conditions
[1] Altitude: ≤3000m.
[2] Ambient temperature: -30℃～+40℃.
[3] Pollution level: Level II, Level III, Level IV.
[4] Relative humidity: daily average not more than 95%, monthly average not more than 90% (25℃).
[5] Wind pressure: not more than 700Pa (equivalent to 34m/s).
[6] The environment is free from flammable substances, explosion hazards, chemical corrosion and severe vibration.
Main features of 35KV sulfur hexafluoride circuit breaker
The product has excellent breaking performance, adopts compressed gas arc extinguishing chamber, short arcing time, long electrical life, and continuously breaks 31.5kA short-circuit current 21 times at rated voltage without maintenance LW8-40.5 outdoor high-voltage sulfur hexafluoride circuit breaker
No sulfur hexafluoride gas is replaced; high mechanical reliability. Mechanical life is more than 3000 times; can be operated frequently, each can be equipped with 12 current transformers for users to choose. The product adopts a new MKZ type SF6 pointer density meter, the pressure gauge reading is not affected by temperature changes, and is easy to use.
The circuit breaker meets the requirements of the national standard GB1984-89 "AC High Voltage Circuit Breaker" and the Electric Power Committee standard IEC56 publication "High Voltage AC Circuit Breaker".
This product is equipped with CT14 spring mechanism.
3. Main technical parameters
LW8-40.5 outdoor high-voltage sulfur hexafluoride circuit breaker
No. Project name Parameter
1 Rated voltage (kV) 40.5
2 Rated current (A) 2000
3 Rated short-circuit breaking current (kA) 31.5
4 Rated out-of-step breaking current (kA) 7.9
5 Rated opening and closing current of a single capacitor bank (A) 400
6 Rated operation sequence Open-0.3s-Close-Open-180s-Close-Open
7 Rated filling pressure of SF6 gas (MPa) 0.45
8 Opening time (ms) ≤60
9 Closing time (ms) ≤100
10 Opening speed (m/s) 3.4
11 Closing speed (m/s) 3.2
12 Circuit breaker weight (kg) 1400
4. Main parameters of CT14 spring mechanism
Closing coil a.c.220V,3.5A d.c.110V,3.6A d.c.220V,1.8A
Disconnection coil a.c.220V,3.5A d.c.110V,4.8A d.c.220V,2.4A
Motor a.c.220V,5A d.c.220V,5A d.c.110V,10A
Energy storage time ≤15s
5. Environmental conditions
[1] Altitude: ≤3000m.
[2] Ambient temperature: -30℃～+40℃.
[3] Pollution level: Level II, Level III, Level IV.
[4] Relative humidity: daily average not more than 95%, monthly average not more than 90% (25℃).
[5] Wind pressure: not more than 700Pa (equivalent to 34m/s).
[6] The environment is free from flammable substances, explosion hazards, chemical corrosion and severe vibration.
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