Definite Time Overcurrent Element Oc And Ef - Toshiba GRT100 Series Instruction Manual

(s)
200
100
50
20
10
Operating
time
0.5
0.2
0.1
Figure 2.11.3

2.11.5 Definite Time Overcurrent element OC and EF

The OC and EF elements measure the phase currents and the residual current respectively.
5
2
1
1 2 5
Current I (Multiple of setting current)
Characteristics of Inverse Time Overcurrent Element
 41 
T=1.0
Long-time Inverse
Standard Inverse
Very Inverse
Extremely Invease
10 20 30
6 F 2 S 0 7 8 9