Toshiba GR200 Series - (i) Voltage magnitudes; (ii) Voltage difference

6F2S1914 (0.49)
GRL200 (Soft 033 & 037)
- 479 -
SYN1-Angle = phase difference between V
B
and V
L
, set by [SYN1-Angle]
SYN2-Angle = phase difference between V
L2
and V
L
, set by [SYN2-Angle]
SYN1-df = value of frequency difference between Bus-bar and Line, set by [SYN1-df]
SYN2-df = value of frequency difference between Line2 and Line, set by [SYN2-df]
T_SYN1 = setting of synch check timer (second) [T_SYN1]
T_SYN2 = setting of synch check timer (second) [T_SYN2]
Table 2.35-5 VCHK synchronism setting
Scheme switch
Set
Comment
SYN1-dV
0 - 150
Difference voltage for the checking SYN1
SYN1-df
0.01 - 2.00
Difference frequency for the checking SYN1
SYN1-Angle
0 - 75
Difference angle for the checking SYN1
SYN1-dfEN
Off/ On
Enabling for df checking in SYN1
SYN2-df
0.01 - 2.00
Difference frequency for the checking SYN2
SYN2-Angle
0 - 75
Difference angle for the checking SYN2
SYN2-dfEN
Off/ On
Enabling for df checking in SYN2
VCHK-OVL
10 - 150
Voltage for the checking Live-Line
VCHK-UVL
10 - 150
Voltage for the checking Dead-Line
VCHK-OVL2
10 - 150
Voltage for the checking Live-Line2
T_SYN1
0.01 - 100.00
Voltage check time "SYN1(Live-Bus & Live-
Line & Synchro.)"
T_SYN2
0.01 - 100.00
Voltage check time "SYN2(Live-Line2 & Live-
Line & Synchro.)"
The VCHK can have the decision of synchronism between the running voltage and the
incoming voltage when the following items (i) to (iv) are satisfied:
(i) Voltage magnitudes
The magnitude of the running voltage and the incoming voltage are greater than
the SYN1 and SYN2 settings:
For SYN1 setting: V
B
≥ [VCHK-OVB] and V
L
≥ [VCHK-OVL]
For SYN2 setting: V
L2
≥ [VCHK-OVL2] and V
L
≥ [VCHK-OVL]
(ii) Voltage difference
The differences of the magnitude between the running voltage and the incoming
voltage (ΔV1 and ΔV2) are smaller than the SYN1 and SYN2 settings:
For SYN1 setting: ΔV1 ≥ | V
B
− K × V
L
| ≤ [SYN1-dV]
For SYN2 setting: ΔV2 ≥ | V
L2
− K × V
L
| ≤ [SYN2-dV]
Note: The VCHK calculation should be achieved correctly even if respective
rating voltages in V
B
, V
L
, and V
L2
are not identical. Thus, the VCHK
function has a matching factor (K) designed to adjust the respective rating
voltages when they are not identical. The matching factor (K) is calculated
automatically using the setting values of VCT ratios; the K is generated