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6.8.2 ECUACIONES PARA CURVAS IEC
t
= curve operating time in seconds
M
TD = time dial setting
M = multiples of pickup. For curve operating time (t
Curve IEC1: Standard Inverse - See Figure 6-37
t
= TD [ 0.14/(M
M
Curve IEC2: Very Inverse - See Figure 6-38
t
= TD [ 13.5/(M - 1) ]
M
Curve IEC3: Extremely Inverse - See Figure 6-39
t
= TD [ 80.0(M
M
Curve IEC4: Long Time Backup - See Figure 6-40
t
= TD [ 120.0/(M - 1) ]
M
RFL 9300
30 de enero de 2002
B e c a u s e R F L ™ a n d H u b b e l l ® h a v e a p o l i c y o f c o n t i n u o u s p r o d u c t i mp r o v e me n t , we r e s e r v e t h e r i g h t t o c h a n g e d e s i g n s a n d s p e c i fi c a t i o n s wi t h o u t n o t i c e .
), M > 1.
M
0.02
- 1) ]
2
- 1) ]
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