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Three-electrode Ceramic Surge Arrester

Three-electrode Ceramic Surge Arrester
 
Type DC striking voltage
V
Surge striking voltage
V(1kv/μS)
Insulation resistance
  Ω
Alternating discharge current
  A
Impulse discharge current
KA (8/20μS)
Transverse voltage
V
Inter-electrode capacitance PF Impulse Transverse voltage
μS (1kv/μS)
3R-90T 90±20 ≤800 ≥109 20A 1S 10times 10KA 10times ≤45 ≤5 ≤0.2
3R-250T 250±50 ≤900 ≥109 20A 1S 10times 10KA 10times ≤45 ≤5 ≤0.2
3R-350T 350±70
     50
≤1000 ≥1090 20A 1S 10times 10KA 10times ≤45 ≤5 ≤0.2
3R-470T 470±90
     70
≤1100 ≥109 20A 1S 10times 10KA 10times ≤45 ≤5 ≤0.2
3R-600T 600±120
     90
≤1200 ≥109 20A 1S 10times 10KA 10times ≤45 ≤5 ≤0.2
3R-800T 800±160
     120
≤1500 ≥109 20A 1S 10times 10KA 10times ≤45 ≤5 ≤0.2
3R-1400T 1400±300
   
≤2500 ≥109 20A 1S 10times 10KA 10times ≤45 ≤5 ≤0.2
3R-90TA 90±20 ≤900 ≥1090 5A 1S 5times 5KA 5times ≤45 ≤3 ≤0.2
3R-120TA 120±25
  
≤900 ≥109 5A 1S 5times 5KA 5times ≤45 ≤3 ≤0.2
3R-230TA 230±30 ≤900 ≥109 5A 1S 5times 5KA 5times ≤45 ≤3 ≤0.2
3R-250TA 250±50 ≤900 ≥109 5A 1S 5times 5KA 5times ≤45 ≤3 ≤0.2
3R-300TA 300±60 ≤900 ≥1090 5A 1S 5times 5KA 5times ≤45 ≤3 ≤0.2
3R-350TA 350±70 ≤1000 ≥109 5A 1S 5times 5KA 5times ≤45 ≤3 ≤0.2
3R-600TA 600±150
     90
≤1200 ≥109 5A 1S 5times 5KA 5times ≤45 ≤3 ≤0.2
 

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