Function Overview; User Interface - Siemens 7SR224 Argus Manual

7SR224 Argus
Recloser Controller
Description
The 7SR224 Recloser Controller is one of a range of new
generation devices providing comprehensive directional and
non-directional overcurrent protection integrated with
associated protection elements and Autoreclose scheme
logic. It builds on the years of in-service experience gained
from the Argus family of products. The Controller provides
independent Phase Fault, Earth Fault and Sensitive Earth
Fault autoreclose sequences. Each sequence can be user set
to any mix of Instantaneous (fast time current characteristic
(TCC)) or Delayed TCC protection and independent Reclose
(Dead) times. The Controller also provides a separate
Autoreclose sequence for external protection.
Functions included are: -
Control, monitoring, instruments, Voltage - Sag & Swell,
together with integrated input and output logic, data
logging & fault report functions.
Controllers are housed in 4U high, size E10 or E12 cases.
Siemens Protection Devices Limited

Function Overview

Standard Functionality
21FL Fault Location
27/59 Under/Overvoltage
27Sag/59Swell SARFIx Power Quality Counters
37 Undercurrent
46BC Broken Conductor / Load Unbalance
46NPS Negative Phase Sequence Overcurrent
47NPS Negative Phase Sequence Overvoltage
49 Thermal Overload –Pole Segregated
50BF Circuit Breaker Fail
51c Cold Load Pickup
51V Voltage Controlled Overcurrent
59N Neutral Voltage Displacement
60CTS CT Supervision
60VTS VT Supervision
64H High Impedance Restricted Earth Fault (EF)
67/50 Directional Instantaneous Phase Fault O/C
67/50G Directional Instantaneous Earth Fault O/C
67/51 Directional Time Delayed Phase Fault O/C
67/51G Directional Time Delayed Earth Fault O/C
67/50SEF Directional Instantaneous Sensitive EF
67/51SEF Directional Time Delayed Sensitive EF
74TCS Trip Circuit Supervision H4/5/6/7 schemes
79 Autoreclose
81 Under/Over Frequency
81HBL2 Inrush Restraint
86 Lockout
User Programmable Logic Equations, via HMI
Graphical Programmable Logic, via pc application
8 Settings Groups - Password access - 2 levels
Self Monitoring
Optional Functionality
25 Synchronising
Loop Automation by Loss of Voltage
Single /Triple Pole Autoreclose for Three Single Pole Circuit
Breakers

User Interface

20 character x 4 line backlit LCD
Menu navigation keys
3 fixed function LEDs
8 or 16 Programmable Tri-colour LEDs
12 Programmable Function Keys with Tri-colour LEDs
2