Operating Current Check; Operating Current Value Test Circuit - Toshiba GRE110 Instruction Manual

Operating current check

Figure 6.5.1 shows a testing circuit. The operating current value is checked by increasing or
decreasing the magnitude of the current applied.
+
Single-phase
current
source
−
+
power
−
supply
Figure 6.5.1 Operating Current Value Test Circuit
The output signal of testing element is assigned a configurable LED.
The output signal numbers of the elements are as follows:
Element
OC1-A
OC2-A
OC3-A
OC4-A
• Enter the signal number to observe the operation at the LED as shown in Section 6.5.1 and
press the ENTER key.
• Apply a test current and change the magnitude of the current applied and measure the value
at which the element operates.
Check that the measured value is within 5% of the setting value.
A
∗ : Connect the terminal number corresponding to the testing element.
Signal No. Element
51 UC1-A
54 UC2-A
57 CBF-A
60
 166 
GRE110
TB 1
∗
-
∗
-
TB 1
- 13
- 14
-12
Signal No.
71
74
82
6 F 2 T 0 1 7 2