145kV-170kV 40 / 50 / 63kA 2000-3000A
Dead Tank SF6 Gas Circuit Breakers


HS Series

• Interrupter Features
  SynchroPuff™ - True puffer design
  Pre-insertion resistors available

• Mechanism
  Spring/Spring gang-operated
  3 cycle fault interruption
• Bushing type
  Percelain or composite bushings
  • Tank type
  Cast aluminium tank design
• Tested performance
  Design tested to 10,000 mechanical operations
• Temperatures
  -30°C without electrical heaters
  -50°C with electrical heaters

Specifications

HS Series 145kV 40kA 145kV 50kA 145kV 63kA 170kV 40kA
Voltage (kV)

145

145 145 170
BIL (kV crest) 650 650 650 750
60 Hz withstand (kV) 310 310 310 365
Continuous current (A) 2000 - 3000 2000 - 3000 2000 - 3000 2000 - 3000
Interrupting current (kA) 40 50 63 40
Interrupting time 3 Cycles 2 - 3 Cycles 2 - 3 Cycles 3 Cycles
Total weight (lbs) 7,000 11,905 10,600 7000
Weight of SF6 Gas (lbs) 60 130 141 65
Pre-insertion resistor (Ohms) 150 N/A N/A N/A

Outline Drawing


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