Ashida ADR233B - Page 36

ADR233B
Doc ID : ADR233B/IM/01
Ref ID : ADR233B/IM/I&S
Rev No. : 05
Page No. : 36 of 479
DT Operation ±5% or 55ms whichever is greater* Note 1
VII. Residual Over current (W1/W2):
For operating Value
DT Pick–up
Setting ±5%
IDMT Pick–up
1.05 x Setting ±5%
Drop –off 0.95 x Setting ±5%
For operating Time IDMT Characteristic
shape
As per class5 of 60255-151 cl.5.2**
or 50ms whichever is greater
DT Operation ±5% or 55ms whichever is greater* Note 1
VIII. Sequence Over current (W1/W2):
For operating Value
DT Pick–up
Setting ±5%
IDMT Pick–up
1.05 x Setting ±5%
Drop –off 0.95 x Setting ±5%
For operating Time IDMT
Characteristic
shape
As per class5 of 60255-151 cl.5.2**
or 50ms whichever is greater
DT Operation ±5% or 55ms whichever is greater* Note 1
IX. Under Voltage:
For operating Value Pick-up 0.95x Setting ±5%
Drop –off 1.05 x Setting ±5%
For operating Time DT Operation ±5% or 55ms whichever is greater* Note 1
X. Over voltage:
For operating Value Pick-up 1.05 x Setting ±5%
Drop –off 0.95 x Setting ±5%
For operating Time DT Operation
±5% or 55ms whichever is greater* Note 1
XI. V/Hz Protection:
For operating Value Pick-up Setting ±5%
Drop –off Setting ±5%
For operating Time DT Operation ±5% or 55ms whichever is greater
XII. Breaker Failure (50BF) (W1/W2):
For operating Value Pick-up Setting ±5%
Reset current Setting ±10%
XIII.
For operating Time DT Operation ±5% or 60ms whichever is greater
CBF Reset Time
<65ms *** Note 3
XIV. Through Fault Alarm:
For operating Value Pickup Setting±10%
XV. Thermal Overload
Thermal Trip /
Alarm
Setting Accuracy
Setting ± 7.5% **** Note 4
Reset value 97% of thermal setting ± 5%
Operating Time ± 7.50% of calculated time