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9 RELAY COMMISSIONING
9.5POWER SUPPLY TEST
Connect the relay to a power supply at rated voltage
Enable the following elements: 51P, 51G, 50P1, 50P2 and 49, setting their pickups and times to the minimum possible
value. All the auxiliary outputs corresponding to the elements enabled.Under these tripping conditions check that the
ALARM ( READY) output is open, and that the relay can communicate with the PC. Check this point requesting the relay
model number from the PC.
Voltage test and maximum consumption is shown below:
Shown values are only illustrative, as due to the nature of the internal power supply (switched power supply), the
consumption currents are high frequency currents, and the meters used measure these values with a poor accuracy.
GEK-106237P
Model "LO" (24 - 48 Vdc)
Voltage (Vdc)
Maximum Consumption (mA)
18
900
48
300
58
250
Model "HI" (110 - 250 Vdc
Voltage (Vdc)
Maximum Consumption (mA)
88
130
110
105
250
55
Voltage (Vac)
Maximum Consumption (mA)
110
200
220
140
MIFII Digital Feeder Relay
9.5 POWER SUPPLY TEST
120-230 Vac)
9
9-5
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