2-18
MIB High Impedance Bus Differntial Relay
GEK-106426B
2.10 TECHNICAL SPECIFICATIONS.
2 PRODUCT DESCRIPTION
2
2.10TECHNICAL SPECIFICATIONS.
2.10.1 PROTECTION ELEMENTS
2.10.2 METERING FUNCTIONS
2.10.3 INPUTS
SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE
2.10.1.1 DIFFERENTIAL ELEMENTS (87 1, 87 2)
Current Input:
Rated Current
Pickup Level:
Reset Level:
Level Accuracy:
Operate Time:
Time Delay:
Timing Accuracy:
Reset Type:
Fundamental
1 A
0.005 to 0.400 A in steps of 0.01 A
97% to 98% typical
±
3% in the complete range
±
1mA
< 15 ms at 4 x pickup
0.00 to 600.00 sec. in steps of 0.01 s
± 3% of operate time or
±
20ms (whichever is greater) at 1.03 x pickup
Instantaneous
2.10.2.1 CURRENT
Accuracy:
±
3%
±
1mA in the complete range
2.10.3.1 AC CURRENT
Rated Current:
Frequency:
CT Current Withstand:
50 / 60 Hz
±
3 Hz (The unit can be set to 50 or 60 Hz)
< 0.2 VA @ In secondary
ground, secondary
4 x In continuously.
100 x In for 1 sec.
2.10.3.2 DIGITAL INPUTS
Voltage Level:
Recognition Time:
300 Vdc maximum
< 4 ms
