Toshiba GRL100-701B Instruction Manual page 268

Connect the phase angle meter to the three-phase voltages taking the scheme switch "VT-RATE"
and VTPH-SEL settings into consideration. The phase angle meter connection shown in Figure
6.5.1.12 is the case for the default settings, ie., "VT-RATE" and "VTPH-SEL" are set to PH/G
and A, respectively.
VT-RATE setting
PH/G
PH/PH
Voltage check element OVB, UVB, OVL1, UVL1, OVL2, and UVL2
• Press 4 (=Logic circuit) on the "Test" screen to display the "Logic circuit" screen.
• Enter a signal number for the TermA line to be observed at monitoring jack A and press the
ENTER key.
• Apply a three-phase rated voltage and a single-phase rated voltage as shown in Figure
6.5.1.12.
OVB and UVB:
• Change the magnitude of the three-phase voltage if the scheme switch "3PH-VT" is set to
"Bus" or change the magnitude of the single-phase voltage if it is set to "Line". Measure the
value at which the element operates and check that it is within ± 5% of the setting.
OVL1 and UVL1:
• Change the magnitude of the single-phase voltage if the scheme switch "3PH-VT" is set to
"Bus" or change the magnitude of the three-phase voltage if it is set to "Line". Measure the
value at which the element operates and check that it is within ± 5% of the setting.
OVL2 and UVL2:
• Change the magnitude of the single-phase voltage applied to terminal 17 and 18 and measure
the value at which the element operates. Check that the measured value is within ± 5% of the
setting.
Element Signal number
OVB 57
UVB 58
OVL1 60
UVL1 61
OVL2 62
UVL2 63
SYN1 59
SYN2 64
OVL1(3PH) 78
VTPH-SEL setting Meter connection phase
A A-N
B B-N
C C-N
A A-B
B B-C
C C-A
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6 F 2 S 0 8 5 0