Toshiba GRL100-701B Instruction Manual page 263

I a
A
Three-phase
I b
A
Current
source
I c
A
+
DC
power
−
supply
+
DC
voltmeter
0V
The output signal of testing element is assigned to the monitoring jack A.
The output signal numbers of the elements are as follows:
• Enter the signal number to observe the operation at the monitoring jack A as shown in
Section 6.5.1.
• Apply the three-phase balance current at 10% of the rated current and interrupt a phase
current.
Then, check the BCD element operates.
6.5.1.9 Overvoltage / undervoltage elements OVS1, OVS2, OVG1, OVG2, UVS1, UVS2, UVG1,
UVG2
The testing circuit is shown in Figure 6.5.1.10.
V
+
Variable-
−
Voltage source
+
DC
power
−
supply
+
DC
voltmeter
0V
(∗) TB1-12 for OVS1, OVS2, UVS1 and UVS2, TB1-14 for OVG1, OVG2, UVG1 and UVG2.
Figure 6.5.1.10 Operating Value Test Circuit
The output signal of testing element is assigned to the monitoring jack A.
Figure 6.5.1.9 Testing BCD element
Element Signal No.
BCD 635
 262 
6 F 2 S 0 8 5 0
GRL100
TB1
-1
-2
-3
-4
-5
-6
Monitoring
jack
TB4
-A16
-B17
E
GRL100
TB1
-11
A
Monitoring
-12 or
jack
-14(*)
0V
TB4 -A16
-B17
E
A
0V