1MRK 502 034-UEN -
5.1.4
5.2
5.2.1
Technical Manual
Technical data
Table 22:
T2WPDIF, T3WPDIF technical data
Function
Operating characteristic
Reset ratio
Unrestrained differential current limit
Base sensitivity function
Minimum negative sequence current
Operate angle, negative sequence
Second harmonic blocking
Fifth harmonic blocking
Connection type for each of the windings
Phase displacement between high voltage
winding, W1 and each of the windings, W2
and W3. Hour notation
Operate time, restrained function
Reset time, restrained function
Operate time, unrestrained function
Reset time, unrestrained function
1Ph High impedance differential protection HZPDIF
Identification
Function description
1Ph High impedance differential
protection
Differential protection
Range or value
Adaptable
>94%
IBase on
(1.00-50.00)x
high voltage winding
IBase
(0.05 - 0.60) x
IBase
(0.02 - 0.20) x
(30.0 - 90.0) degrees
(5.0-100.0)% of
fundamental differential
current
(5.0-100.0)% of
fundamental differential
current
Y or D
0–11
25 ms typically at 0 to
5 x Ib
25 ms typically at 5 to
0 x Ib
20 ms typically at 0 to
5 x Ib
25 ms typically at 5 to
0 x Ib
IEC 61850
IEC 60617
identification
identification
Id
HZPDIF
SYMBOL-CC V2 EN
Section 5
Accuracy
± 1.0% of Ir for I < Ir
± 1.0% of Ir for I > Ir
-
± 1.0% of set value
± 1.0% of Ir
± 1.0% of Ir
± 1.0 degrees
± 2.0% of Ir
± 12.0% of Ir
-
-
-
-
-
-
ANSI/IEEE C37.2
device number
87
95