Tripping And Reclosing Circuit Test - Toshiba GRL100-701B Instruction Manual

output" screen.
In the BOP scheme, the end-to-end test can be carried out more simply on the "Manual test"
screen of the "Test" sub-menu. For the details, see Section 4.2.7.2.
Note: In these tests it is recommended to block the tripping circuit to prevent false tripping.
6.6.3

Tripping and Reclosing Circuit Test

The tripping and reclosing circuit including the circuit breaker is checked by forcibly operating
the output relay and monitoring the circuit breaker that is tripped or reclosed. Forcible operation
of the output relay is performed on the "Binary output" screen of the "Test" sub-menu as
described in Section 6.4.3.
Tripping circuit
• Ensure that the circuit breaker is closed.
• Press 2 (=Binary output) on the "Test" sub-menu screen to display the "Binary output"
screen. The LCD displays the output modules mounted.
• Enter 1 to select the IO#1 module, then the LCD displays the screen shown below.
/ 3 B O
I O # 1
I O #
1
I O # 1
I O # 1
I O # 1
I O # 1
TP-A1, B1 and C1 are output relays with one normally open contact, and trip the A-phase,
B-phase and C-phase breakers. TP-A2 to C2 are used if two-breaker tripping is required in a
one-and-a-half-breaker busbar arrangement.
• Enter 1 for TP-A1 and press the ENTER key.
• Press the END key. Then the LCD displays the screen shown below.
/ 3 B O
K e e p
P r e s s
• Keep the 1 key pressed to operate the output relay TP-A1 and check that the A-phase
breaker is tripped.
• Release pressing the 1 key to reset the operation.
• Repeat the above for all the phases.
Reclosing circuit
• Ensure that the circuit breaker is open.
• Press 2 (=Binary output) on the "Test" sub-menu screen to display the "Binary output"
screen. The LCD displays the output modules mounted.
• Enter the selected number corresponding to each module to be operated. Then the LCD
( 0 = D i s a b l e
T P - A 1
T P - B 1
T P - C 1
T P - A 2
T P - B 2
T P - C 2
p r e s s i n g 1 t o
t o c a n c e l .
C A N C E L
 279 
1 = E n a b l e )
o p e r a t e .
6 F 2 S 0 8 5 0
1 / 6
1
1
1
0
0
0