Technical Data - ABB RET670 Product Manual

Transformer protection RET670
Pre-configured
Product version: 1.1

7. Technical data

General
Definitions
Reference The specified value of an influencing factor to which are referred the
value characteristics of the equipment
Nominal The range of values of an influencing quantity (factor) within which, under
range specified conditions, the equipment meets the specified requirements
Operative The range of values of a given energizing quantity for which the equipment,
range under specified conditions, is able to perform its intended functions
according to the specified requirements
Energizing quantities, rated values
and limits
Analog inputs
Table 4. TRM - Energizing quantities, rated values and limits
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.
42
Rated value
I = 1 or 5 A
r
(0-100) x I
r
4 × I cont.
r
*)
100 × I for 1 s
r
< 150 mVA at I = 5 A
r
< 20 mVA at I = 1 A
r
U = 110 V
r
(0–340) V
420 V cont.
450 V 10 s
< 20 mVA at 110 V
f = 50/60 Hz
r
1MRK 504 091-BEN B
Issued: June 2010
Nominal range
(0.2-40) × I
r
0.5–288 V
± 5%
ABB