12/24kV Air Insulated Ring Main Units
1. Structures and Features:
·Compartmented and enclosed
·Air insulated
·Vacuum circuit breaker (optional)
·Four compartments (switch, busbar, cable terminal and LV)
·Interlocking system
·Modular design for flexible extension, arc duct
·Power automation system (optional)
·Dimension:
H(mm): 1635/1885/2275
W(mm): 375/500/750
D(mm): 1000
2. Technical datas:
·Standardized by: GB/IEC
·Rated voltage: 12/24kV
·Rated frequency: 50/60Hz
·Rated main busbar current: 1250A
·Rated short-time withstand current:
LBS:25kA/2s 20kA/1s
VCB:1250A-31.5kA
·Fused LBS transfer current: 1600A
·Lightning impulse withstand current: 63/50kA
·Degree of protection: IP4X