Technical Data - ABB RET670 Product Manual

ABB
Transformer protection RET670 ANSI
Pre-configured
Product version: 1.2

19. Technical data

General
Definitions
Reference value The specified value of an influencing factor to which are referred the characteristics of the equipment
Nominal range The range of values of an influencing quantity (factor) within which, under specified conditions, the
equipment meets the specified requirements
Operative range The range of values of a given energizing quantity for which the equipment, under specified
conditions, is able to perform its intended functions according to the specified requirements
Energizing quantities, rated values and limits
Analog inputs
Table 5. TRM - Energizing quantities, rated values and limits for protection transformer modules
Quantity
Current
Operative range
Permissive overload
Burden
Ac voltage
Operative range
Permissive overload
Burden
Frequency
*)
max. 350 A for 1 s when COMBITEST test switch is included.
Rated value
I = 1 or 5 A
n
(0-100) x I
n
4 × I cont.
n
*)
100 × I for 1 s
n
< 150 mVA at I = 5 A
n
< 20 mVA at I = 1 A
n
V = 120 V
n
(0–340) V
420 V cont.
450 V 10 s
< 20 mVA at 110 V
f = 60/50 Hz
n
1MRK 504 118-BUS A
Nominal range
(0.2-40) × I
n
0.5–288 V
± 5%
41