110kv/145kv Dead Tank Sf6 Gas Circuit Breaker

• Breaking Capacity: High Voltage Circuit Breakers
• Operation: Energy-storage Type
• Speed: High-Speed Circuit Breaker
• Arc-extinguishing Medium: SF6
• Installation: Fixed
• Function: Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection, OVP(Overvoltage Protection)
• Model NO.: LW
• Certification: ISO9001-2000
• Transport Package: Wooden
• Specification: 110KV/115KV/123KV/145KV
• Trademark: HEMG
• Origin: China
• Production Capacity: 10000

Product Description

 

Dead-tank SF6 Circuit Breakers
 

Construction characteristics

*1. Nominal voltage (KV): 145
*2. Rated lighting impulse withstand voltage 
(KV): 650
*3. Rated power-frequency withstand voltage  
(60 HZ): 275 KV
*4. Rated breaking current: 40 KA
*5. Rated nominal current: 1200A
*6. Nominal frequency: 60 HZ
*7. Operation: Interrupter per phase
*8. Outdoor, weather proof
*9. Arc extinguisher: SF6
10. Operations counter
 
Control characteristics
 
*1. Control voltage: 125 Vdc
*2. Spring operating mechanism
*3. Number of trip coil: 2
*4. Number of close coil: 1
*5. Operation controls:
*a. Push bottoms for open and close
*b. Selector switch: LOCAL-OFF-
REMOTE
*6. Protection type
*7. Motor: 125 Vdc
 
Internal CT's: Specifications
1. Type: Multi-range
2. MR 1200/5 A, 200 VA
3. 100-200-300-400-500-600-800-1000-1200
A / 5 A
4. Class: 1200/5, CL: 0.3, 200 VA
*• 1200/5 CL C 400, 50 VA 2-4-6 MR
*• 1200/5 CL C 400, 50 VA 1-3-5 MR
*• 1200/5 CL C 400, 50 VA 1-3-5 MR
*• 1200/5 CL C 400, 50 VA 2-4-6 MR
 
 
REFERENCE: ABB, COOPER, ALSTOM, SIEMES.
 
*1. Outdoor, weather proof
*2. Galvanized steel structure
*3. Pressure meter:  units PSI,  BAR, KPA
*4. Independent refill valve, separated from 
viewer or gauge.
*5. Current transformer on bushings.
*6. Ambient temperature range: -55 to + 55
*    degree C, with SF6  
 
 
STANDARDS:
ANSI, IEEE, IEC, VDE
Test s