1SDH002031A1002 ECN000092998 Rev. B
SACE Tmax XT2
– XT4 | 80
Motor
Protections
Protection
[ANSI code]
Trip time t
t
Trip threshold
tolerance
(3)
Trip time tolerance
R JAM [51LR]
t
t
= tj
(7)
± 10 %
± 7 % with If
6 In; ± 10 % with If > 6 In
R STALL [51LR]
t
t
= ts
± 10 %
± 10 %
UC [37]
t
t
= tuc
± 15 %
± 20 %
U
t
t
= tu
(8)
± 15 %
± 20 %
Protection notes
NOTES:
(1)
for the calculation of t
t
use the values of the trip and threshold currents expressed in In
(example: If = 0.8 In, I1= 0.6 In)
(2)
with t4 = instantaneous, the maximum tolerance is 50 ms
(3)
Tolerances valid with the Trip unit in steady state or switched on with auxiliary power
supply, trip time
100 ms, temperature and signals within operating limits. If conditions
are not guaranteed, the tolerances in the table following the notes are valid
(4)
The trip unit considers a hysteresis of 3% for exiting the alarm condition
(5)
Tolerance valid for frequencies in the range: fn ± 2%. For frequencies outside the range
there is a tolerance of ± 5%
(6)
± 20% for the 0.4 Hz/s threshold
(7)
Time to be considered valid after the
Motor start-up
(8)
Time to be considered valid with protection in an alarm state after the
Motor start-up
. If
the alarm appears during the
Motor start-up
, the trip unit calculates and uses the lowest
value between tu and half of
Motor start-up
Performance guaranteed under all operating conditions
Protection
Trip threshold tolerance
Trip time tolerance
L
Activation in the range: (1.05-1.2) x I1
± 20 %
S
± 10 %
± 20 %
I / 2I
± 15 %
60 ms
G
± 10 %
± 20 % (60 ms with t4 = instant)
UF / UF2 / OF / OF2
± 2 %
± 20 %
Others
--
± 20 %
Содержание SACE Tmax XT2
Страница 82: ...1SDH002031A1002 ECN000092998 Rev B SACE Tmax XT2 XT4 82 L curve IEC 60255 151 SI L curve IEC 60255 151 VI ...
Страница 83: ...1SDH002031A1002 ECN000092998 Rev B SACE Tmax XT2 XT4 83 L curve IEC 60255 151 EI L curve t k I4 ...
Страница 84: ...1SDH002031A1002 ECN000092998 Rev B SACE Tmax XT2 XT4 84 L curve Ekip M Touch S curve t k I2 ...
Страница 85: ...1SDH002031A1002 ECN000092998 Rev B SACE Tmax XT2 XT4 85 S curve t k Curve S2 I curve MCR curve 2I curve ...
Страница 86: ...1SDH002031A1002 ECN000092998 Rev B SACE Tmax XT2 XT4 86 G curve t k I2 G curve t k ...
Страница 87: ...1SDH002031A1002 ECN000092998 Rev B SACE Tmax XT2 XT4 87 IU curve UV curve UV2 curve ...
Страница 88: ...1SDH002031A1002 ECN000092998 Rev B SACE Tmax XT2 XT4 88 OV curve OV2 curve VU curve ...
Страница 89: ...1SDH002031A1002 ECN000092998 Rev B SACE Tmax XT2 XT4 89 S V curve S2 V curve RV curve ...
Страница 90: ...1SDH002031A1002 ECN000092998 Rev B SACE Tmax XT2 XT4 90 UF curve UF2 curve OF curve OF2 curve ...
Страница 91: ...1SDH002031A1002 ECN000092998 Rev B SACE Tmax XT2 XT4 91 RP curve D curve ...
Страница 92: ...1SDH002031A1002 ECN000092998 Rev B SACE Tmax XT2 XT4 92 OQ curve OP curve ...
Страница 93: ...1SDH002031A1002 ECN000092998 Rev B SACE Tmax XT2 XT4 93 UP curve RQ curve ...
Страница 94: ...1SDH002031A1002 ECN000092998 Rev B SACE Tmax XT2 XT4 94 ROCOF curve R JAM curve R STALL ...
Страница 95: ...1SDH002031A1002 ECN000092998 Rev B SACE Tmax XT2 XT4 95 UC curve ...
Страница 207: ...1SDH002031A1002 ECN000092998 Rev B ...
