Tripping Circuit Test; Tripping Circuit - Toshiba GRE110 Instruction Manual

Note:
The magnitude of current can be set in values on the primary side or on the secondary side
by the setting. (The default setting is the primary side.)

6.6.2 Tripping Circuit Test

The tripping circuit including the circuit breaker is checked by forcibly operating the output relay
and monitoring the circuit breaker to confirm that it is tripped. Forcible operation of the output
relay is performed on the "Binary O/P " screen of the "Test" sub-menu as described in Section
6.4.3.

Tripping circuit

• Set the breaker to be closed.
• Select "Binary O/P" on the "Test" sub-menu screen to display the "Binary O/P" screen.
BO1 to BO4 are output relays with one normally open contact.
• Enter 1 for BO2 and press the ENTER key.
• Press the END key. Then the LCD displays the screen shown below.
• Keep pressing the ENTER key to operate the output relay BO2 and check that the circuit
breaker is tripped.
I b m a x *
I c m a x *
I e m a x *
I 2 m a x *
I 2 1 m a x *
/ 2 B i n a r y
B O 1
> B O 1
D i s a b l e /
B O 2
D i s a b l e /
B O 3
D i s a b l e /
B O 4
D i s a b l e /
F A I L
D i s a b l e /
O p e r a t e ?
E N T E R = Y C A N C E L = N
 173 
* . * * k A
* . * * k A
* . * * k A
* . * * k A
* . * *
O / P
_
0
E n a b l e
0
E n a b l e
0
E n a b l e
0
E n a b l e
0
E n a b l e
6 F 2 T 0 1 7 2