Toshiba GR200 Series Instruction Manual page 504

Line differential protection ied
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where,
Tips: Cycles for the synchronism closure can be calculated:
Time length for getting a synchronism:
Time =
Check time for the synchronism:
Setting [ T_SYN1 ] <
Equations rearrangements:
Setting [ T_SYN1 ] <
1
∆��[����]
�������������� [ T_SYN1 ] <
Δf= Frequency-difference (or cycle-slip in Hertz)
Cycle for synchronism = 1 ∆f[Hz]
2 × Setting [SYN1-Angle]
360°
2 × Setting [SYN1-Angle]
360°
Setting [SYN1-Angle]
180°
�������������� [T_SYN1]
>
Setting [SYN1-Angle]
�������������� [SYN1-Angle]
180°
- 481 -
6F2S1914 (0.49)
1
×
∆f[Hz]
1
×
∆f[Hz]
1
×
∆f[Hz]
1
÷
180°
1
×
∆��[����]
GRL200 (Soft 033 & 037)
(2.35-2)
(2.35-3)
(2.35-4)
(2.35-5)
(2.35-6)
(2.35-7)

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