WEIS GMBH SM100 On-Line Switchgear Condition Monitoring 

WEIS GMBH SM100 On-Line Switchgear Condition Monitoring

The On-Line Switchgear Condition Monitoring System (SM100) is an essential substation preventative maintenance tool and aid for power utilities with ever increasing demands for more reliable low cost energy.

Possible on-line test results which can be computed per phase for each breaker operation include:

Feature Extraction
•Peak Coil Current
•Coil Current Pulse Length
•Mechanism Time
•Arc Duration Time
•Pre Latch Period
•Latch Transition
•Trip Latch Release
Coil Current Fingerprint Comparison / Grey Zone Checking
•Accumulated Contact Wear (InT)
•Accumulated Contact Operation Count
•Estimated Main Contact Operated Time
•Mechanism Motion
•Battery Voltage

The SM100 can optionally perform trend recording for:

•Gas / Pressure Leakage
•Heater Failure
•Low Pressure
•RMS Current per Phase
•RMS Voltage per Phase
•Battery Voltage

In addition the SM100 can optionally perform a Off-Line timing test on the main contacts.

This system is the first step towards ‘on-time maintenance’ that should be supported with Off-Line dynamic micro-ohm testing / timing, to gain more in-depth knowledge and experience.

•Mount within Breaker Drive Unit, external enclosure or indoor
•Non-Invasive Installation
•Simple-to-Service Design
•Capture signature of each breaker operation with optionfor time tagging to within 1 Sec.
•Local or Remote Indication of Switchgear Condition
•Off-Line Timing of Main Contacts – Optional
•Trend Recording – Optional
•Power Quality Measurements – Optional
•Central Database Management Software for Analysis and Performance Monitoring of Switchgear Network
Switchgear Management System software is an essential Windows database program for the gathering of information on the network for switchgear performance monitoring and maintenance scheduling.

Possible Features:-
•Automatic analysis / classification of breaker operation records
•Checks protection operation timing
•Simple network overview
•Exports measurement to ‘Voltage Dips’ and ‘Breaker Performance’ databases
•Graphical display of captured waveforms
•Graphical display of trend recording data

The Switchgear Management System runs on a standard IBM compatible PC and would normally be set to auto-poll and / or autocall modes for data gathering.

A graphing function which allows the user to view breaker operation signatures and trend recording data.