Technical Data - ABB RES670 Technical Manual

1MRK 511 408-UUS A
8.5.8
8.6
8.6.1
Phasor measurement unit RES670 2.2 ANSI
Technical manual

Technical data

Table 131: LFPTTR/LCPTTR (26)technical data
Function
Reference current
Reference temperature
Trip time:
é
ê
2 - 2
I I
ê
t
= p
t ln
ê -
T
- -
2 2 Trip
I I
ê
p
ë T
ref
EQUATION13000039 V2 EN-US
T = set trip temperature
Trip
T = ambient temperature
Amb
T = temperature rise above ambient at I
ref
I = reference load current
ref
I = actual measured current
I = load current before overload occurs
p
Alarm temperature
Trip temperature
Reset level temperature
Directional underpower protection GUPPDUP (37)
Identification
Function description
Directional underpower protection
Range or value
(2-400)% of IBase
(0-600)°F, 0 - 300)°C
Time constant t = (1–1000)
minutes
ù
ú
ú
ú
T
×
Amb 2
I
ú
ref
û
(Equation 27)
ref
(0-400)°F, (0-200)°C
(0-300)°C, (0-600)°F
(0-300)°C, (0-600)°F
IEC 61850
identification
GUPPDUP
Section 8
Current protection
Accuracy
±1.0% of I
±2.0°F, ±2.0°C
IEC 60255-149,
±5.0% or ±200 ms
whichever is greater
±4.0°F, ±2.0°C
±4.0°F, ±2.0°C
±4.0°F, ±2.0°C
IEC 60617 ANSI/IEEE C37.2
identification device number
37
P <
2
SYMBOL-LL V2 EN-US
M12352-1 v14
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SEMOD156693-1 v4
SEMOD158941-2 v4
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