Toshiba GR200 Series Instruction Manual page 155

Summary of OC operation
(viii)
Table 2.6-5 shows the summary of OC operation in each CH.
Table 2.6-5 Type and standard board (Ticks show selectable functions)
Characteristics DT

DT
IEC-NI
IEC-VI
IEC-EI
UK LTI
IEEE-MI
IEEE-VI
IEEE-EI
US-CO2
US-CO8
Original
N.A
DEF
N.A
N.A
N.A
DEP
N.A
N.A
N.A
Threshold value for each CH
2.6.3
Threshold values at which OC elements will pick-up in each CH are configured by settings
[OC1] and [OC2]. The elements can have IDMT or DT characteristic. Note that the threshold
settings can have distinct values in the respective OC elements in each CH. Rated current for
the input is defined either 1A or 5A; it is defined on a VCT. (For more information about the
VCT, see Chapter
Reset ratio
2.6.4
The ratio of the threshold current for pick-up to reset is applied using a setting; for example,
in CH1, the ratio of OC1 element is set using setting [OC1-DPR]. Each CH can have the reset
settings.
IEC-NI IEC-VI IEC-EI
✓
✓
✓
✓ ✓ ✓
Technical description: Transformer module for AC analogue input
- 141 -
IDMT
UK-LTI IEEE-MI IEEE-VI
✓
✓
✓
✓ ✓ ✓
✓
✓
6F2S1931 (0.20)
IEEE-EI US-CO2 US-CO8
✓
✓
✓
✓ ✓ ✓
✓
✓
✓
).
Centralized GRB200
(Soft: 030, 031, 032, 033, 034)
Original
✓
✓
✓