Toshiba GRT100 Series, Instruction Manual

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91
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6 F 2 S 0 7 8 9
/ 3 T i m e z o n e 1 / 1
G M T ( - 1 2 - + 1 2 ) : + 9 _ h r s

Enter the difference between GMT and local time and press the
ENTER
key.
4.2.6.7 Protection
The GRT100 can have 8 setting groups for protection according to the change of power system
operation, one of which is assigned to be active. To set protection, do the following:

Press 6 (= Protection) on the "Setting (change)" screen to display the "Protection" screen.
/ 2 P r o t e c t i o n
1 = C h a n g e a c t i v e g r o u p
2 = C h a n g e
s e t t i n g
3 = C o p y g r o u p
Changing the active group

Press 1 (= Change active group) to display the "Change active group" screen.
/ 3 C h a n g e a c t i v e g r o u p ( A c t i v e g r o u p = * )
1 = G r o u p 1 2 = G r o u p 2 3 = G r o u p 3 4 = G r o u p 4
5 = G r o u p 5 6 = G r o u p 6 7 = G r o u p 7 8 = G r o u p 8
C u r r e n t N o . = * S e l e c t N o . =

Enter the selected number and press the
ENTER
key.
Changing the settings
Almost all the setting items have default values that are set when the product GRT100 was
shipped. For the default values, see Appendix D and H. To change the settings, do the following:

Press 2 (= Change setting) to display the "Change setting" screen.
/ 3 C h a n g e s e t t i n g ( A c t i v e g r o u p = * )
1 = G r o u p 1 2 = G r o u p 2 3 = G r o u p 3 4 = G r o u p 4
5 = G r o u p 5 6 = G r o u p 6 7 = G r o u p 7 8 = G r o u p 8

Press the group number to change the settings and display the "Protection" screen.
/ 4 P r o t e c t i o n ( G r o u p * )
1 = T r a n p r
2 = T r i p
a r a m e t e s f o r m e r
Settings are required for transformer parameter and protection functions.
Setting the transformer parameters
Enter the VT&CT ratio as follows:

Press 1 (= Transformer parameter) on the "Protection" screen to display the "Transformer