12/24kV SF6 Insulated Ring Main Units

1. Structures and Features:

·SF6 gas insulated
·Sealed gas tank by 3mm stainless steel
·Totally enclosed and insulated main busbar and cable terminal
·Outdoor service, maintenance free
·Interlocking system
·High degree of protection against adverse and polluted circumstance
·Vacuum circuit breaker(Optional)
·Power automation system(Optional)
·Dimension: 
   H(mm):  1380
   W(mm): 350
   D(mm):  800

2. Technical datas:

·Standardized by GB/IEC
·Rated voltage: 12/24kV
·Rated frequency: 50/60Hz
·Rated current:

   Load switch:630A
   Vacuum switch:630A 
   Fused load switch: 100A

   Vacuum circuit breaker: 1250A

• Fused load switch transfer current: 1600A

• Degree of protection: IP67

• Pressure of gas tank: 1.4barl

• Gas leakage: 0.2‰/Year