ABB Relion 670 series - Page 752

13.3.8 Technical data
GUID-E2EA8017-BB4B-48B0-BEDA-E71FEE353774 v4
Table 439: technical data
Function Range or value Accuracy
Operate value, block of main
fuse failure
(10.0-80.0)% of VBase ±0.5% of Vn
Reset ratio <110%
Operate time, block of main
fuse failure at 1 to 0 x V
r
Min. = 5 ms –
Max. = 15 ms
Reset time, block of main fuse
failure at 0 to 1 x V
r
Min. = 15 ms –
Max. = 30 ms
Operate value, alarm for pilot
fuse failure
(10.0-80.0)% of VBase ±0.5% of Vn
Reset ratio <110% –
Operate time, alarm for pilot
fuse failure at 1 to 0 x V
r
Min. = 5 ms –
Max. = 15 ms
Reset time, alarm for pilot
fuse failure at 0 to 1 x V
r
Min. = 15 ms –
Max. = 30 ms
Section 13 1MRK 502 066-UUS B
Secondary system supervision
746
Technical manual