Alstom MiCOM P50 Agile P15D, Техническое руководство

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14 Technical Specifications
P50 Agile P15D
14-6 P15D/EN TM/B
For operating Time IDMT Characteristic shape with Relay
Power ON condition
as per class5 of 60255-151 cl.5.2 or
± 60 ms whichever is greater
*(Under reference Condition)
DT Operation
with Relay Power ON condition ± 5% or ± 60 ms whichever is greater**
IDMT characteristic shape
with Relay Power OFF condition as per class5 of 60255-151 cl.5.2 or
± 90 ms whichever is greater *
(Under reference Condition)
DT Operation
with Relay Power OFF condition ± 5% or ± 90 ms whichever is greater **
Typical Operation Time with auxiliary
supply ON
<= 60 mS
(protection time-delay set to 0 ms; the
injection current is greater than two times
the setting value) The P15D is supplied
from auxiliary supply or pre fault current is
above 0.2 In.
Operating time when Relay is self-powered
and breaker is operated with SOTF
condition
<= 80mS
(protection time-delay set to 0 ms; the
injection current is greater than two times of
the setting value and above In) The pre-
fault current is zero and there is no auxiliary
supply. The case: CB switches on to fault
without auxiliary voltage supply.
*Reference Condition TMS=1 , I>setting of 1A ,Operating range
2-20 In
** Reference Condition Fault current 1.5 times above set value
Under current function
(For proper operation, relay must be Powered ON by external auxiliary supply)
II.
For operating value Pick-up Below 0.20 In : 0.95 x settings ± 7.50%
Above 0.20 In : 0.95 x settings ± 5%
Drop –off Below 0.20 In : 1.05 x settings ± 7.50%
Above 0.20 In : 1.05 x settings ± 5%
For operating time DT Operation ± 5% or ± 60 ms whichever is greater
III. Thermal Overload function
For operating Time Thermal Trip operation ± 10% of calculated time
IV.
Cold Load Pickup function
tcold operating Time tcold Setting ± 10%
tclp operating Time tclp Setting ± 10%
For operating Value Pick-up S10% / - 5%
Minimum Trip Level of IDMT 1.05 x Settings ± 5%
Drop –off 0.95 x settings ± 5%