3AH38 Generator Vacuum Circuit-Breakers

• Customization: Available
• Breaking Capacity: High Voltage Circuit Breakers
• Operation: Energy-storage Type
• Model NO.: 3AH38
• Speed: High-Speed Circuit Breaker
• Arc-extinguishing Medium: Vacuum
• Installation: Fixed
• Structure: VCB
• Poles Number: 3
• Type: Circuit Breaker
• Function: Conventional Circuit Breaker
• Certification: VDE
• Rated Voltage: 17.5/24kV
• Rated lightning impulse withstand voltag: 110kV
• Rated frequency: 50/60HZ
• Rated normal current: up to 6300A
• Transport Package: Carton for Export
• Specification: 100kg
• Trademark: SIENMEN-S
• Origin: China

Product Description

Product Description

„ Constant dielectric

. Hermetically sealed vacuum interrupter keeps out all environmental effects

. No degradation of "quenching medium"

„ Constant contact resistance

. In vacuum, contacts cannot oxidize

. The very small resistance is maintained throughout the contact life

„ High total current switched

. Low contact erosion

.10,000 switching operations at rated normal current

.Up to 50 times rated short-circuit breaking current

„ Economic advantages

. Vacuum circuit-breakers are maintenance-free

. Easy disposal at the end of life-time

Product Photos

Technical Data

project	3AH37		3AH37	3AH38
Rated Voltage	17.5 kV		24 kV	17.5 kV
Rated short-duration power-frequency withstand voltage	50 kV		60 kV	50 kV
Rated lightning impulse withstand voltage	110 kV		125 kV	110 kV
Rated frequency	50/60 Hz		50/60 Hz	50/60 Hz
Rated short-circuit breaking current	50 kA / 63 kA / 72 kA		50 kA / 63 kA / 72 kA	50 kA / 63 kA / 72 kA
Rated short-circuit making current	137 kA / 173 kA / 198 kA		137kA / 173kA / 198kA	137 kA / 173 kA / 198 kA
Rated normal current	5000 A /  6300 A		3150 A / 4000A 5000 A / 6300A	3150 A / 4000 A