ABB SACE Tmax XT2 - Page 79

1SDH002031A1002 ECN000092998 Rev. B SACE Tmax XT2 – XT4 | 79
Voltage
Protections
Protection
[ANSI code]
Trip time t
t
Trip threshold
tolerance
(3)
Trip time tolerance
UV [27] /
UV2 [27]
t
t
= t8 (t15)
± 2 %
(4)
the better of: ± 10 % or ± 40 ms with t8 < 5 s
± 100 ms with t8  5 s
OV [59] /
OV2 [59]
t
t
= t9 (t16)
± 2 %
(4)
the better of: ± 10 % or ± 40 ms with t9 < 5 s
± 100 ms with t9  5 s
VU [47]
t
t
= t14
± 5 %
the better of: ± 10 % or ± 40 ms with t14 < 5 s
± 100 ms with t14  5 s
Advanced
Voltage
Protections
Protection
[ANSI code]
Trip time t
t
Trip threshold
tolerance
(3)
Trip time tolerance
S(V) [51V] /
S2(V) [51V]
t
t
= t20 (t21)
± 10 %
the better of: ± 10 % or ± 40 ms with t20 < 5 s
± 100 ms with t20  5 s
RV [59N]
t
t
= t22
± 10 %
the better of: ± 10 % or ± 40 ms with t22 < 5 s
± 100 ms with t22  5 s
Frequency
Protections
Protection
[ANSI code]
Trip time t
t
Trip threshold
tolerance
(3)
Trip time tolerance
UF [81L] /
UF2 [87L]
t
t
= t12 (t17)
± 1 %
(5)
The better of: ± 100 ms with t12  5 s
± 10 % (min = 30 ms) or ± 40 ms with t12 < 5
s
OF [81H] /
OF2 [87H]
t
t
= t13 (t18)
± 1 %
(5)
The better of: ± 10 % or ± 40 ms with t13 < 5 s
± 100 ms t13  5 s
Power
Protections
Protection
[ANSI code]
Trip time t
t
Trip threshold
tolerance
(3)
Trip time tolerance
UP [32LF]
t
t
= t23
± 10 %
the better of: ± 10 % or ± 40 ms with t23 < 5 s
± 100 ms with t23  5 s
OP [320F]
t
t
= t26
± 10 %
the better of: ± 10 % or ± 40 ms with t26 < 5 s
± 100 ms with t26  5 s
RQ [40 or
32R]
t
t
= t24
± 10 %
the better of: ± 10 % or ± 40 ms with t24 < 5 s
± 100 ms with t24  5 s
OQ [320F]
t
t
= t27
± 10 %
the better of: ± 10 % or ± 40 ms with t27 < 5 s
± 100 ms with t27  5 s
D [67]
t
t
= t7
± 7 % with If  6 In
± 10 % with If > 6 In
The better of: ± 10 % or ± 40 ms
RP [32R]
t
t
= t11
± 10 %
the better of: ± 10 % or ± 40 ms with t11 < 5 s
± 100 ms with t11  5 s
Startup
Protection
Trip time t
t
Trip threshold
tolerance
(3)
Trip time tolerance
D StartUp
t
t
= t7 startup
± 10 %
The better of: ± 10 % or ± 40 ms
ROCOF
Protections
Protection
[ANSI code]
Trip time t
t
Trip threshold
tolerance
(3)
Trip time tolerance
ROCOF [81R]
t
t
= t28
± 10 %
(6)
The better of: ± 20 % or 200 ms