Toshiba GRL100-101A, Инструкция по эксплуатации

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⎯
150
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6 F 2 S 0 8 3 5
[ „ „ „ „ „ „ „ „ „ „ „ „ „ „ „ ]
A B C
DIF
α β
OST
α β
OST
OST1 OST2
A B C A B C A B C
OC OCI OC1
THM
THM-A THM-T
Autoreclose OVB UVB SYN1 OVL1 UVL1 SYN2 OVL2 UVL2 — — — — — — —
Line 1 shows the operation status of current differential elements for phase faults and earth
faults, respectively.
Line 2 shows the status of the out-of-step protection.
α
and
β
is "1" when the remote terminal
voltage is at
α
-zone and
β
-zone respectively. OST shows the operation status of out-of-step
element. OST1 and OST2 correspond to the out-of-step detection with remote terminal 1 and 2
respectively.
Line 3 shows the status of the overcurrent element for breaker failure protection.
Line 4 shows the status of the overcurrent elements and fail-safe elements.
Line 5 shows the status of the thermal overload element.
Line 6 shows the status of elements used for autoreclose.
The status of each element is expressed with logical level "1" or "0". Status "1" means the
element is in operation.
To display all the lines on the LCD, press the and keys.
4.2.4.4 Displaying the Status of the Time Synchronization Source
The internal clock of the GRL100 can be synchronized with external clocks such as the IRIG-B
time standard signal clock or RSM (relay setting and monitoring system) clock or by an
IEC60870-5-103 control system or GPS. To display on the LCD whether these clocks are active
or inactive and which clock the relay is synchronized with, do the following:
•
Select 2 (= Status) on the top "MENU" screen to display the "Status" screen.
•
Select 4 (= Time sync source) to display the status of time synchronization sources.
/ 2 T i m e s y n c
* I R I G : A c t i v
h r o n i z a t o n
i s o u r c e
e
R S M : a c t i v e I n
I E C : a c t i v e I n
3 /
4
G P S : a c t i v e I n
The asterisk on the far left shows that the inner clock is synchronized with the marked source
clock. If the marked source clock is inactive, the inner clock runs locally.
For the setting time synchronization, see Section 4.2.6.6.
DIF, DIFG
OST
OCBF
DIFG — — — — — — — — — — —
— —
— — — — —
— —
A B C — — — — — — — — — — — —
EF EFI
— — — — OC, EF