Siemens SIPROTEC 7UM62 User Manual

Functions
2.49 Auxiliary Functions
SIPROTEC, 7UM62, Manual
C53000-G1176-C149-7, Release date 03.2010
338
2.49.4 Thermal Measurement
2.49.4.1 Description
The thermal measured values are as follows:
• Θ
S
/Θ
S Trip
Overload protection measured value of the stator winding in % of the tripping overtemperature,
• Θ
S
/Θ
S TripL1
Normalized overload protection measured value of the stator winding for phase L1,
• Θ
S
/Θ
S TripL2
Normalized overload protection measured value of the stator winding for phase L2,
• Θ
S
/Θ
S TripL3
Normalized overload protection measured value of the stator winding for phase L3,
• Θ
R
/Θ
Rmax
: Normalized rotor temperature in % of the tripping temperature,
•T
Rem.
: Time until the next permissible restart,
• I
Neg th.
: Rotor overtemperature due to the negative phase-sequence component of the current, in % of the
tripping overtemperature,
• U/f th.: Overtemperature caused by overexcitation, in % of tripping overtemperature,
• „AMB.TEMP =“ Coolant temperature
• Θ RTD 1 to Θ RTD 12: Temperature at sensors 1 to 12
832 U0 = MV U0 (zero sequence)
894 U DC = MV DC voltage
896 U RE = MV REF(R,fn): Injected Voltage (U RE)
897 I RE = MV REF(R,fn): Curr. in the Circuit (I RE)
901 PF = MV Power Factor
902 PHI= MV Power angle
903 R= MV Resistance
904 X= MV Reactance
909 Uexcit.= MV Excitation voltage
995 ϕ SEF= MV SEF100%: Phase angle in stator circuit
996 Td1= MV Transducer 1
997 Td2= MV Transducer 2
998 Td3= MV Transducer 3
7740 ϕIL1S1= MV Phase angle in phase IL1 side 1
7741 ϕIL2S1= MV Phase angle in phase IL2 side 1
7749 ϕIL3S1= MV Phase angle in phase IL3 side 1
7750 ϕIL1S2= MV Phase angle in phase IL1 side 2
7759 ϕIL2S2= MV Phase angle in phase IL2 side 2
7760 ϕIL3S2= MV Phase angle in phase IL3 side 2
No. Information Type of In-
formation
Comments

Siemens SIPROTEC 7UM62 Specifications

General

Brand	Siemens
Model	SIPROTEC 7UM62
Category	Protection Device
Language	English