User Interface; Function Overview; Monitoring Functions - Siemens 7SR210 Argus Manual

7SR210 7SR220 Argus
Overcurrent Protection Relay
Description
The 7SR210n and 7SR220n are a new generation of non-
directional and directional overcurrent protection relays,
built on years of numeric relay protection experience with
the Argus family of products.
Housed in 4U high, size E6 or E8 cases, these relays provide
protection, control, monitoring, instrumentation and meter-
ing with integrated input and output logic, data logging &
fault reports. Communication access to relay functionality is
via a front USB port for local PC connection or rear electrical
RS485 port for remote connection. Additional rear port op-
tions are available.

Function Overview

Standard Functionality
37 Undercurrent
46BC Broken Conductor / Load Unbalance
46NPS Negative Phase Sequence Overcurrent
49 Thermal Overload
50 Instantaneous Overcurrent
50G/N Instantaneous Earth Fault
50BF Circuit Breaker Fail
51 Time Delayed Overcurrent
51G/N Time Delayed Measured Earth Fault /SEF
64H High Impedance REF
74TC Trip Circuit Supervision
81HBL2 2nd Harmonic Block/Inrush Restraint
51c Cold Load Pickup
8 Settings Groups
Password Protection – 2 levels
User Programmable Logic
Self Monitoring
Siemens Protection Devices Limited
Additional Functionality 7SR220n Directional Relay
27/59 Under/Over Voltage
47 Negative Phase Sequence (NPS) voltage
51V Voltage Dependent Overcurrent
59N Neutral Voltage Displacement
60CTS CT Supervision
60VTS VT Supervision
67/50 Bi-Directional Instantaneous Overcurrent
67/50G/N Bi-Directional Instantaneous Earth Fault
67/51 Bi-Directional Time Delayed Overcurrent
67/51G/N Bi-Directional Time Delayed Earth Fault
81 Under/Over Frequency
Optional Functionality
79 Auto Reclose

User Interface

20 character x 4 line backlit LCD
Menu navigation keys
3 fixed LEDs
8 or 16 Programmable Tri-colour LEDs (Option)
6 Programmable Function Keys each with Tri-colour LED
(Option)

Monitoring Functions

Standard Monitoring Functionality
Primary current phases and earth
Secondary current phases and earth
Positive Phase Sequence (PPS) Current
Negative Phase Sequence (NPS) Current
Zero Phase Sequence (ZPS) Current
Binary Input/Output status
Trip circuit healthy/failure
Time and date
Starters
Fault records
Event records
Frequency
Waveform records
Circuit breaker trip counters
I t summation for contact wear
2
Demand metering
Additional Monitoring Functionality 7SR220n Directional
Relay
Direction
Primary line and phase voltages
Secondary voltages
Apparent power and power factor
Real and reactive power
W Hr forward and reverse
VAr Hr forward and reverse
Historical demand record
Positive phase sequence (PPS) Voltage
Negative phase sequence (NPS) Voltage
Zero phase sequence (ZPS) Voltage
2