User`s guide

Volume 3—Power Distribution and Control Assemblies CA08100004E—November 2013 www.eaton.com V3-T9-167
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9.4
Metering Devices, Protective Relays, Software and Connectivity
Protective Relays
Control Power
●
Control voltage:
●
48–125 Vdc/100–
120 Vac
●
100–250 Vdc/100–
240 Vac
●
Operating voltage:
●
38–150 Vdc/55–132 Vac
●
80–308 Vdc/55–264 Vac
●
Interruption ride-through
time:
●
83 ms at 120V, 60 Hz AC
●
250 ms at 110 Vdc/
300 ms at Vac
●
Power consumption:
●
20 VA maximum
●
22 VA maximum
Current Inputs
●
CT rating:
●
2 x ln at 5 amperes
continuous
●
3 x ln at 1 ampere
continuous
●
80 x ln at 5 amperes
for 1 second
●
100 x ln at 1 ampere
for 1 second
●
CT burdens:
●
< 0.25 VA at 5A
(nominal)
●
< 0.05 VA at 1A
(nominal)
Voltage Transformer Inputs
●
Nominal: 0–120 Vac line
to common
●
Operating range:
0–144 Vac (+20%) line
to common
●
Burden: 1 mega ohm input
impedance
Metering Accuracy
●
Input signal frequency
necessary for accurate
operation:
●
60 Hz Nominal,
57–63 Hz (5%)
●
50 Hz Nominal,
47–53 Hz (5%)
●
Frequency measurement
accuracy:
●
±0.02 Hz
●
Clock accuracy:
●
Free running ±1 minute/
month at 77°F (25°C)
●
Automatically updated
by PowerNet host
when present