7
Commissioning
SIMPRO-100
104
PRIM-2400C
Figure 7.4
Two Voltage Source and Three Current Source Test Connections
Note:
Relays equipped with ac voltage inputs
(Models SIMPRO-100-R or N-V) must be
properly grounded for accurate voltage
measurement.
7.3.2
Phase Current Measuring
Accuracy
1. Connect the current sources to the IA, IB, and
IC current inputs
(5 A or 1 A, as indicated by the ITAP setting).
2. Using the front-panel Set Relay\Relay
Elements\General Data functions or serial
port SHOW command, note the CTR and
PHROT settings.
3. Set the current source phase angles to apply
balanced three-phase currents. Refer to
Figure 7.1, page 100 for the correct phase
angles that depend on the PHROT setting.
4. Turn on the current sources and increase the
current applied to the relay. Use the
front-panel Meter Values\Instantaneous Meter
function to view the relay phase current
measurements. For the applied current
values shown in Table 7.3, the relay should
display phase current magnitudes equal to
the applied current magnitude times the CTR
setting.
Table 7.3
Phase Current Measuring Accuracy
|I| Applied
(A secondary)
Expected
Reading
(CTR o |I| A
primary)
A-Phase
Reading
(A primary)
B-Phase
Reading
(A primary)
C-Phase
Reading
(A primary)
0.5
1.0
1.5
2.0
2.5
5.0
Summary of Contents for SIMPRO-100
Page 1: ...SIMPRO 100 Motor Protection Relay Instruction Manual Document No PRIM 2400C ...
Page 12: ...Contents SIMPRO 100 x PRIM 2400C ...
Page 16: ...Contents SIMPRO 100 xiv PRIM 2400C ...
Page 42: ...3 SIMPRO PC Software SIMPRO 100 40 PRIM 2400C ...
Page 100: ...6 ASCII Serial Port Operation SIMPRO 100 98 PRIM 2400C ...
Page 127: ...SIMPRO 100 Event Analysis 9 PRIM 2400C 125 Figure 9 2 Example SER Report ...
Page 136: ...10 Maintenance Troubleshooting SIMPRO 100 134 PRIM 2400C ...
Page 138: ...A Firmware Versions SIMPRO 100 136 PRIM 2400C ...
Page 206: ...D SIMPRO PC Compatibility Features SIMPRO 100 204 PRIM 2400C ...
Page 214: ...E Motor Thermal Element SIMPRO 100 212 PRIM 2400C ...
Page 230: ...F SIMPRO 100 Relay Settings Sheets SIMPRO 100 228 PRIM 2400C ...
Page 239: ......