Technical Data - ABB REL670 Product Manual

Line distance protection REL670 2.2
Product version: 2.2

24. 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
Presumptions for Technical Data
The technical data stated in this document are only valid under
the following circumstances:
1. Main current transformers with 1 A or 2 A secondary
rating are wired to the IED 1 A rated CT inputs.
2. Main current transformer with 5 A secondary rating are
wired to the IED 5 A rated CT inputs.
3. CT and VT ratios in the IED are set in accordance with the
associated main instrument transformers. Note that for
functions which measure an analogue signal which do not
have corresponding primary quantity the 1:1 ratio shall be
set for the used analogue inputs on the IED. Example of
such functions are: HZPDIF, ROTIPHIZ and STTIPHIZ.
4. Parameter IBase used by the tested function is set equal
to the rated CT primary current.
5. Parameter UBase used by the tested function is set equal
to the rated primary phase-to-phase voltage.
52
SBase used by the tested function is set equal
6. Parameter
to:
– √3 × IBase × UBase
7. The rated secondary quantities have the following values:
– Rated secondary phase current I
depending on selected TRM.
– Rated secondary phase-to-phase voltage U
the range from 100 V to 120 V.
– Rated secondary power for three-phase system S
× U × I
r r
8. For operate and reset time testing, the default setting
values of the function are used if not explicitly stated
otherwise.
9. During testing, signals with rated frequency have been
injected if not explicitly stated otherwise.
1MRK 506 372-BEN -
is either 1 A or 5 A
r
is within
r
= √3
r
ABB