ABB RES670 Technical Manual page 78

Section 3
Analog inputs
72
Description
Thermal withstand
Burden
Voltage inputs *)
Rated voltage U
r
Operating range
Thermal withstand
Burden
*) all values for individual voltage inputs
Note! All current and voltage data are specified as RMS values at rated frequency
Table 29: CT and VT circuit connectors
Connector type
Screw compression type
Terminal blocks suitable for ring
lug terminals
Value
80 × I for 1 s
r
25 × I for 10 s
r
10 × I for 1 min
r
1.8 × I for 30 min
r
1.1 × I continuously
r
< 200 mVA at I
110 or 220 V
0 - 340 V
450 V for 10 s
420 V continuously
< 20 mVA at 110 V
< 80 mVA at 220 V
Rated voltage and current
250 V AC, 20 A
250 V AC, 20 A
Phasor measurement unit RES670 2.2 ANSI
1MRK 511 408-UUS A
65 × I for 1 s
r
20 × I for 10 s
r
8 × I for 1 min
r
1.6 × I for 30 min
r
1.1 × I continuously
r
< 350 mVA at I
r r
SEMOD53376-2 v6
Maximum conductor area
2
4 mm (AWG12)
2
2 x 2.5 mm (2 x AWG14)
4 mm 2 (AWG12)
Technical manual