Verification Of Measurement; Voltages; Phase Currents - GE F650 User Manual

6.8 VERIFICATION OF MEASUREMENT

6.8 Verification of measurement
Set the relay as follows
GENERAL SETTINGS
NAME
PHASE CT RATIO
GROUND CT RATIO
STV GROUND CT RATIO
PHASE VT RATIO
PHASE VT CONNECTION
NOMINAL VOLTAGE
NOMINAL FREQUENCY
PHASE ROTATION
FREQUENCY REFERENCE
AUXILIARY VOLTAGE
NOTE:
ALL ANGLES INDICATED ARE LAGGING ANGLES
ALL VALUES OBTAINED IN THIS TEST MUST BE THE ONES CORRESPONDING TO THE PHASOR ONES

6.8.1 Voltages

Apply the following voltage and frequency values to the relay:
CHANNEL
VI
VII
VIII
VX
Verify that the relay measures the values with an error of ±1 % of the applied value from 10V to 208V.

6.8.2 Phase currents

Apply the following current and frequency values to the relay:
CHANNEL
Ia (A)
Ib (A)
Ic (A)
IG (A)
ISG (A)
Verify that the relay measures the values with an error lower than ±0.5% of the test value or ± 10 mA, whichever is greater,
for phases and ground.
Verify that the relay measures the values with an error lower than ±1.5% of the test value or ± 1 mA, whichever is greater,
for sensitive ground (SG).
6-6
VALUE
1.0
1.0
1.0
1.0
WYE
100 V
50 Hz
ABC
VI
VX
ANGLE FREQUENCY
50 Hz 60 Hz
0º 0 5
120º 0 5
240º 0 5
0º 0 5
ANGLE FREQUENCY
50 Hz 60 Hz
45º 0 15
165º 0 15
285º 0 15
0º 0 15
0º 0 5
F650 DIGITAL BAY CONTROLLER
UNITS RANGE
0.1 1.0-6000.0
0.1 1.0-6000.0
0.1 1.0-6000.0
0.1 1.0-6000.0
N/A WYE – DELTA
0.1 1-2250 V
1 Hz 50-60 Hz
N/A ABC – ACB
N/A VI-VII-VIII
N/A VX – VN
50 Hz 60 Hz 50 Hz
50 100 150
50 100 150
50 100 150
50 100 150
50 Hz 60 Hz 50 Hz
10 5 1
10 5 1
10 5 1
10 5 1
1 0.1 0.01
CHAPTER 6: COMMISSIONING
60 Hz
200
200
200
200
60 Hz
0.1
0.1
0.1
0.1
0.005
GEK-113000-AF