Toshiba GRZ100 B Series, Instruction Manual

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6 F 2 S 0 8 4 6
Lines 1 to 4 show the operation status of distance measuring elements for earth faults and phase
faults respectively. Line 5 shows the operation status of blinder elements.
Lines 6 to 9 show the status of overcurrent, directional earth fault and overvoltage elements. Lines
10 to 13 show the status of undervoltage elements. Line 14 shows the status of the overcurrent
element for breaker failure protection, power swing blocking element, out-of-step protection
element and broken conductor detection element. Line 15 shows the status of the power swing
blocking element and thermal overload element.
Line 16 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 inner clock of the GRZ100 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. 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 Ｔｉｍｅ ｓｙｎｃｈｒｏｎｉｚａｔｉｏｎ ｓｏｕｒｃｅ
＊ＩＲＩＧ： Ａｃｔｉｖｅ
ＲＳＭ： Ｉｎａｃｔｉｖｅ
ＩＥＣ： Ｉｎａｃｔｉｖｅ
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.
4.2.4.5 Adjusting the Time
To adjust the clock when the internal clock is running locally, do the following:
•
Select 2 (= Status) on the top "MENU" screen to display the "Status" screen.
•
Select 5 (= Clock adjustment) to display the setting screen.
/ 2 1 2 / F e b / 1 9 9 8 2 2 : 5 6 : 1 9 [ L o c a l ] 1 / 5
M i n u t e ( 0 - 5 9 ) : 4 1
H o u r ( 0 - 2 3 ) : 2 2
D a y ( 1 - 3 1 ) : 1 2
M o n t h ( 1 - 1 2 ) : 2
Y e a r ( 1 9 9 0 - 2 0 8 9 ) : 1 9 9 8
Line 1 shows the current date, time and time synchronization source with which the internal clock
is synchronized. The time can be adjusted only when [Local] is indicated on the top line, showing
that the clock is running locally. When [IRIG] or [RSM] or [IEC] is indicated, the following
adjustment is invalid.
•
Enter a numerical value within the specified range for each item and press the ENTER key.
•
Press the END key to adjust the internal clock to the set hours without fractions and return to
the previous screen.