Analog Outputs; Function Description - Siemens SIPROTEC 7UM62 Manual

2.41

Analog Outputs

Depending on the variant ordered, the 7UM62 machine protection can have up to four analog outputs (plug-in
modules on ports B and D).
Starting from firmware version 4.62, the device features a universal analog output (type 2) for additional select-
ed measured values. An output ranging for instance from 4 to 20mA is thus possible with both positive and
negative values. The old analog output (type 1) for only positive values can still be used.
2.41.1 Functional Description
When configuring the functional scope, the user can specify which values are transmitted via these outputs.
The following table shows which type of analog output is possible for each measured value.
Table 2-13 A maximum of four of the following analog outputs are available:
Measured value
I1 Positive sequence current component
I2 Negative sequence current component
IEE1 Sensitive earth current
IEE2 Sensitive earth current
U1 Positive sequence voltage component
U0 Zero sequence voltage component
U03H 3. Harmonic voltage
|P| Absolute amount of real power
|Q| Absolute amount of reactive power
P Active power
Q Reactive power
S Apparent power
f Frequency
U/f Overexcitation
PHI Power angle
PHI Power angle
|cos ϕ| Value of the power factor
cos ϕ Power factor
/Θ Rotor temperature
Θ
R R Trip
/Θ Stator temperature
Θ
S S Trip
RE REF Rotor earth resistance
(f measuring method)
N
RE REF 1-3Hz Rotor earth resistance
(1-3 Hz measuring method)
RE SEF "Secondary" stator earth resistance
The operational nominal values are those configured at address 251 UN GEN/MOTOR and 252 SN GEN/MOTOR
(see also section 2.5).
SIPROTEC, 7UM62, Manual
C53000-G1176-C149-7, Release date 03.2010
Description Scaling
in % based on I generator
N
in % based on I generator
N
in % based on 100 mA
in % based on 100 mA
in % based on U generator/√3
N
in % based on U generator/√3
N
in % based on 0.1 U generator/√3
N
(relatively small values)
in % based on S generator
N
in % based on S generator
N
in % based on S generator
N
in % based on S generator
N
in % based on S generator
N
in % based on the nominal frequency f
in % based on the nominal values of the
protected object
in % based on 90° (0° to 360°)
in % based on 90° (–180° to + 180°)
((–180° = –200 % and + 180° = +200 %
in % based on 1
in % based on 1
in % based on the maximum permissible
rotor temperature
in % based on the tripping temperature
in % based on 100 kΩ
in % based on 100 kΩ
in % based on 100 Ω
Functions
2.41 Analog Outputs
Type 1 Type 2
X X
X
X
X
X X
X
X
X
X
X
X
X X
X X
N
X
X
X
X
X
X
X
X
X
X
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