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Section 7
Current protection
7.6.8
126
Technical data
Table 66:
DNSPTOC Technical data
Function
Operate current
Reset ratio
Low polarizing voltage level
Relay characteristic angle
Relay operate angle
Timers
Operate time, non-directional
Reset time, non-directional
Operate time, directional
Reset time, directional
Critical impulse time
Impulse margin time
Dynamic overreach
Range or value
IBase
(2.0 - 200.0) % of
> 95 %
(0.0 - 5.0) % of
UBase
(-180 - 180) degrees
(1 - 90) degrees
(0.00 - 6000.00) s
30 ms typically at 0 to 2 x I
set
20 ms typically at 0 to 10 x I
set
40 ms typically at 2 to 0 x I
set
30 ms typically at 0 to 2 x I
set
20 ms typically at 0 to 10 x I
set
40 ms typically at 2 to 0 x I
set
10 ms typically at 0 to 2 x I
set
2 ms typically at 0 to 10 x I
set
15 ms typically
< 10% at t = 300 ms
1MRK 505 288-UEN A
Accuracy
± 1.0% of I
at I <I
r
r
± 1.0% of I at I > I
r
-
< ± 0.5% of U
r
± 2.0 degrees
± 2.0 degrees
± 0.5% ± 25 ms
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Technical manual
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