Siemens SIPROTEC 7UM62 User Manual

Technical Data
4.38 Operating Range of the Protection Functions
SIPROTEC, 7UM62, Manual
C53000-G1176-C149-7, Release date 03.2010
524
1)
The thermal replica registers cooling-down
2)
A pickup – if already present – is maintained
3)
A pickup – if already present – is maintained, if the measured voltage is not too small
4)
25 Hz < f/Hz ≤ 40 Hz
5)
The function is only active at rated frequency ± 3 Hz
6)
If using the measured value of measuring transducer1
7)
Only if auxiliary contacts of the circuit breaker connected
Motor Starting Time Supervision
(ANSI 48)
inactive active active inactive
Restart Inhibit for Motors
(ANSI 66, 49Rotor)
active active active active
Breaker Failure Protection (ANSI 50BF) active
7)
active active active
7)
Inadvertent Energization (ANSI 50, 27) active active active active
DC Voltage/Current Protection
(ANSI 59NDC/51NDC)
active active active active
Threshold supervision inactive
6)
active active inactive
6)
External Trip Functions active active active active
Temperature Detection by Thermoboxes active active active active
Fuse Failure Monitor inactive active active inactive
Sensitive Earth Fault Protection B
(ANSI 51GN)
inactive active active inactive
Interturn Protection (ANSI 59N (IT)) inactive active active inactive
Operational Condition 1: At at least one of the measuring inputs (U
L1
, U
L2
U
L3
, I
L1, S2
, I
L2, S2
, I
L3, S2
) of the
device, at least 5% of the nominal value is present, so that the sampling fre-
quency for measurement acquisition can be tracked.
Operational Condition 0: If no suitable measured values are present, or if the frequency is below 11 Hz
or above 69 Hz, the device cannot operate (operational condition 0) and no
measured value processing occurs.
Operational state
0
Operational state 1 Operational state
0
Protective Elements f ≤ 10 Hz 11 Hz < f/Hz ≤ 40 40 Hz ≤ f/Hz ≤ 69 f ≥ 70 Hz

Siemens SIPROTEC 7UM62 Specifications

General

Brand	Siemens
Model	SIPROTEC 7UM62
Category	Protection Device
Language	English