GE P50 Agile P253 - Output Contact; Accuracy of protection function; Overcurrent; Earth Fault 1 (Measured)-Standard CT SEF CT

P50 Agile P253
13 Technical Specifications
P253/EN M/C
13-5
Output Contact
I.
Non Latching contact Continuous Continuous 5A/250 V AC
Make & carry
30A for 3s
Short time withstand capacity
50A for 1s
Breaking capacity AC- 1250 VA max. 5A or 250 V (PF= 0.4)
DC- 100 W resistive max. 5A or 300 V
50 W Inductive (L/R =45 ms) max. 5A or 300 V
Operating time <10 ms
Minimum no. of operations
10,000 operation loaded condition & unloaded
100,000 operations
Accuracy of protection function
Overcurrent
I.
Operating value Pick-up Setting ±5%
Minimum trip level (IDMT) 1.05 x Setting ± 5%
Drop–off
0.95 x Setting ± 5%
II.
Operating time
IDMT characteristic shape
As per clause 5.2 of IEC60255-151 or
50 ms whichever is greater
DT operation
± 5% or 55 ms whichever is greater**
** Reference condition
Currents applied at 2x pick-up level or
higher
III.
Reset time
DT
Set delay ±7.5% or 55 ms whichever is
greater
IDMT (only for IEEE & US curves) Calculated time ±10%
Earth Fault 1 (Measured)-Standard CT / SEF CT
I.
Operating value
Pick-up
Setting ±5%
Minimum trip level (IDMT) 1.05 x Setting ± 5%
Drop –off 0.95 x Setting ± 5%
II.
Operating time IDMT characteristic shape
As per clause 5.2 of 60255-
151 or
50 ms whichever is greater
DT operation ± 5% or 55 ms whichever is greater**
** Reference condition Currents applied at 2x pick-up level or
higher
III.
Reset time DT
Set delay ±7.5% or 55 ms whichever is
greater
IDMT (only for IEEE & US curves) Calculated time ±10%
Earth Fault 2 (Derived)
I.
Operating value Pick-up Setting ±5%
Minimum trip level (IDMT) 1.05 x Setting ± 5%
Drop –off
0.95 x Setting ± 5%
II.
Operating time
IDMT characteristic shape
As per clause 5.2 of 60255-151 or
50 ms whichever is greater
DT operation
± 5% or 55 ms whichever is greater**
** Reference condition Currents applied at 2x pick-up level or
higher
III.
Reset time
DT
Set delay ±7.5% or 55 ms whichever is
greater
IDMT (only for IEEE & US curves)
Calculated time ±10%