Table Of Contents - ABB SPAJ 140 C User Manual And Technical Description

1MRS 750629-MUM EN
Issued 1997-01-30
Modified 2003-09-29
Version C (replaces 34 SPAJ 16 EN1)
Checked PS
Approved MÖ
Data subject to change without notice
Contents
Features
Application
2
Features .......................................................................................................................... 2
Application ..................................................................................................................... 2
Description of operation ................................................................................................. 3
Connections (modified 2003-09) .................................................................................... 4
Signal diagram ................................................................................................................ 7
Signal abbreviations ........................................................................................................ 7
Start and operation indicators ......................................................................................... 8
Power supply and output relay module ........................................................................... 9
Technical data (modified 2002-04) ............................................................................... 10
Maintenance and repairs ............................................................................................... 13
Spare parts .................................................................................................................... 13
Dimensions and instructions for mounting .................................................................. 14
Order information ........................................................................................................ 14
The complete manual for the relay SPAJ 140 C contains the following submanuals:
General relay description for SPAJ 140 C
General characteristics of D type relay modules
Combined overcurrent and earth-fault relay module
type SPCJ 4D29
Three-phase, low-set phase overcurrent unit
with definite time or inverse definite minimum
time (IDMT) characteristic
Three-phase, high-set phase overcurrent unit
with instantaneous or definite time function
Low-set, non-directional earth-fault unit with
definite time or inverse definite minimum time
(IDMT) characteristic
High-set, non-directional earth-fault unit with
instantaneous or definite time function
Built-in breaker failure protection function
Two heavy-duty and four light-duty output
relays with field-selectable configuration
The combined overcurrent and earth-fault relay
SPAJ 140 C is intended to be used for the
selective short-circuit and earth-fault protection
of radial feeders in solidly earthed, resistance
earthed or impedance earthed power systems.
The integrated protection relay includes a phase
overcurrent unit and an earth-fault unit with
SPAJ 140 C
Combined overcurrent
and earth-fault relay
1MRS 750629-MUM EN
1MRS 750066-MUM EN
1MRS 750119-MUM EN
Extensive data communication capabilities over
built-in serial port
Outstanding design flexibility for easy selection
of appropriate operation schemes for different
applications
Numerical display of setting values, measured
values, memorized fault values, fault codes etc.
Enhanced system reliability and availability due
to continuous hardware and software self-super-
vision with auto-diagnosis
Powerful software support for setting and
parametrizing of the relay and for recording of
relay parameters with a portable PC.
flexible tripping and signalling facilities. The
overcurrent and earth-fault relays can also be
used inother applications requiring single-, two-
or three-phase overcurrent protection and non-
directional earth-fault protection. The com-
bined overcurrent and earth-fault relay also fea-
tures circuit breaker failure protection.