●Setting Items
①
Select usage of Instantaneous characteristic.
②
Setting value for Instantaneous characteristic.
(set to multiple of CT ratings)
ex) if CT ratio : 100/5, I >> : 4.0In
�Primary current of CT = 4.0 X 100 = 400A
�Secondary current of CT = 4.0 X 5 = 20A
(In : Rating current of CT)
③
Operating time for Instantaneous characteristic.
※Available to use two stages (Low, High) for Instantaneous
Op. time
- Low : within 40ms - High : 0.05~300s
④
Choose characteristic curve.
[Available to choose DT(Definite Time), SI(Standard Inverse),
VI(Very Inverse), EI(Extremely Inverse), LI(Long Inverse)]
⑤
Setting value for Time delay characteristic. ( Refer to
②
)
⑥Select Time Lever or Time dial for Inverse characteristic.
(range : 0.05~1.2, able to use when choosing Inverse curve in ④)
⑦Constant Time Delay (range : 0.0~10.0 sec)