ABB SPAC 531 C User Manual And Technical Description page 104

1MRS 750602-MUM EN
Issued 96-12-30
Modified 99-12-20
Version C (replaces 34 SPCJ 2 EN1)
Checked KJ
Approved GL
Data subject to change without notice
Contents
Features
2
Features .......................................................................................................................... 2
Description of operation ................................................................................................. 3
Block diagram ................................................................................................................. 4
Front panel ..................................................................................................................... 5
Operation indicators ....................................................................................................... 5
Settings ........................................................................................................................... 6
Selector switches ............................................................................................................. 7
Measured data ................................................................................................................ 9
Recorded information ................................................................................................... 10
Main menus and submenus of settings and registers ..................................................... 12
Time/current characteristics ......................................................................................... 13
Technical data .............................................................................................................. 18
Event codes ................................................................................................................... 19
Remote transfer data ..................................................................................................... 20
Fault codes.................................................................................................................... 23
Low-set overcurrent stage I> with selectable
definite time or inverse definite minimum time
(IDMT) operation characteristic
High-set current stage I>> with instantaneous
operation or definite time operation character-
istic
Both overcurrent stages can be blocked by means
of an external control signals from cooperating
protection relays
SPCJ 3C3
Overcurrent
relay module
Digital display of measured and set values, re-
corded fault values, operation indications and
fault messages
Comprehensive serial communication capability
Continuous self-supervision of the electronics
and the software including autodiagnostics