Toshiba GR 200 Series, Инструкция по эксплуатации

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6F2S1915 (0.46)
GRZ200 (Soft 031 & 032)
- 1022 -
(i)
OC-DRT relay setting
An overcurrent relay within the disturbance recorder (OC-DRT) is provided. The user should
set a pick-up value for the relay to commence the disturbance recorder. Use the setting [
OC-
DRT
]; then set
On
for the [
OC-DRT-EN
] if this relay operation is required to commence the
recording.
(ii)
EF-DRT relay setting
An earth fault relay (EF-DRT) is provided; set the pick-up value for the [
EF-DRT
]; then set
On
for the [
EF-DRT-EN
].
(iii)
UV-DRT relay setting
An under-voltage relay (Line-ground) (UV-DRT) is provided. Set the value for the [
UV-DRT
];
then set
On
for the [
UV-DRT-EN
].
(iv)
UVS-DRT relay setting
An under-voltage relay (Line-Line) (UVS-DRT) is provided. Set the value for the [
UVS-DRT
];
then set
On
for the [
UVS-DRT-EN
].
8.3.3
Maximum number for recording disturbance phenomena
Note that the maximum number for recording the disturbance phenomena depends on the
recording time and the sampling rate. Table 8.3-1 illustrates the maximum number. For
example, the 77 phenomena can be memorized in the disturbance recorder, when the [
Record
Time
] =1 and the [
Sampling Rate
] =7.5° elec., if the IED operates in 50Hz system. The user
can also check the maximum number on the IED screen (See Figure 8.3-2).
Table 8.3-1 Max number depending on time settings
Recording
period set with
[
Record Time
]
Max. recording number for Disturbance phenomena
Setting [
Sampling Rate
] in 50Hz sys. Setting [
Sampling Rate
] in 60Hz sys.
7.5º 15º 7.5º 15º
1 sec 77 151 64 126
3 sec 26 51 21 43
5 sec 15 31 13 26
8.3.4
Number of analog quantities and logical signals for disturbance recorder
Ten analog quantities and 256 logical signals are record in a disturbance phenomenon.
(i)
Number of analog quantities
Currents (Ia, Ib, Ic, Ie, Iem) and the voltages (Va, Vb, Vc, Vs, Vs2) are recorded. For more
information about the VCT, see Chapter
Technical description: Transformer module for AC
analog input
.