Protective Elements
Parameter
Description
Setting range
Default
Menu path
%(I2/I1)
The %(I2/I1) setting is the
unbalance trip pickup
setting. It is defined by
the ratio of negative
sequence current to
positive sequence current
(% Unbalance=I2/I1), or
%(I2/I1) for ABC rotation
and %(I1/I2) for ACB
rotation.
Only available if: %(I2/I1)
= use.
2 - 40%
20%
[Protection Para
/<n>
/I-Prot
/I2>[1]]
Char
Characteristic
DEFT,
INV
DEFT
[Protection Para
/<n>
/I-Prot
/I2>[1]]
t
Tripping delay
Only available if:
Characteristic = DEFT.
0.00 - 300.00s
0.00s
[Protection Para
/<n>
/I-Prot
/I2>[1]]
K
Indicates the thermal
load capability of the
engine while running with
100% unbalanced load
current.
Only available if:
Characteristic = INV.
1.0 - 200.0
10.0
[Protection Para
/<n>
/I-Prot
/I2>[1]]
τ-cool
If the unbalanced load
current falls below the
pickup value, the cooling-
off time is taken into
account. If the
unbalanced load exceeds
the pickup value again,
than the saved heat
within the electrical
equipment will lead to an
accelerated trip.
Only available if:
Characteristic = INV.
0.0 - 60000.0
0.0
[Protection Para
/<n>
/I-Prot
/I2>[1]]
Page 318
EN MRM4 01/11
Содержание MRM4
Страница 1: ...MRM4 HighPROTEC Motor Protection Device Manual DOK HB MRM4E...
Страница 3: ...Order Code EN MRM4 01 11 Page 3...
Страница 18: ...Important Definitions Page 18 EN MRM4 01 11 41 SG Prot ON 42 SG ON Cmd SG Prot ON SG ON Cmd...
Страница 115: ...Navigation Operation Navigation Operation EN MRM4 01 11 Page 115 1 2 3 5 7 6 8 10 9...
Страница 162: ...Recorder Name Description I 2 TripCmd Signal Trip Command Page 162 EN MRM4 01 11...