Power Supply Test - GE Multilin MIWII Instruction Manual

9.5 POWER SUPPLY TEST

9.5POWER SUPPLY TEST
Connect the relay to a power supply at rated voltage .
Enable the following elements: 32_1,32_2,32_3 setting their pickups and times to the minimum possible value.
Inject to the relay the corresponding currents and voltages, so that the power elements trip.
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.
9
9-6
Model "LO" (24 - 48 Vdc)
Voltage (Vdc) Maximum Consumption (mA)
18
48
58
Model "HI" (110 - 250 Vdc
Voltage (Vdc) Maximum Consumption (mA)
88
110
250
Voltage (Vac) Maximum Consumption (mA)
110
220
MIWII Directional Power Protection System
9 RELAY COMMISSIONING
900
300
250
120-230 Vac)
130
105
55
200
140
GEK-113308