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Siemens Protection Devices Limited. Reyrolle - protecting industry since 1886
Protection Relays

OHMEGA 311 - 7SG16

The Ohmega relays are a range of numeric impedance measuring distance protection relays.
Functionality
- 50/60Hz
- 3 zone mho protection
- high set overcurrent
- voltage transformer supervn
- power swing blocking
- switch on to fault
- signalling schemes
- single shot autorelcose
- DEF
- synchronism check
- overvoltage

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Documentation

Catalogue Sheet
OHMEGA
Catalogue Sheet 894k

Technical Manual
OHMEGA 300 and 400
list of models 16k

OHMEGA 311 Technical Manual
Contents 72k

OHMEGA 311 Technical Manual
Section 01 Description of Operation 156k

OHMEGA 311 Technical Manual
Section 02 Impedance Functions 120k

OHMEGA 311 Technical Manual
Section 03 Protection Schemes 63k

OHMEGA 311 Technical Manual
Section 04 Relay Settings 130k

OHMEGA 311 Technical Manual
Section 05 Performance Specification 90k

OHMEGA 311 Technical Manual
Section 06 Communication Interface 76k

OHMEGA 311 Technical Manual
Section 07 Application Guide 216k

OHMEGA 311 Technical Manual
Section 08 Installation 69k

OHMEGA 311 Technical Manual
Section 09 Commissioning 221k

OHMEGA 311 Technical Manual
Section 10 Maintenance 77k

OHMEGA 311 Technical Manual
Section 11 Diagrams 554k

OHMEGA 311 Technical Manual
Section 12 Autoreclose & Check Synchronising 71k

OHMEGA 311 Technical Manual
Section 13 Directional Earth Fault 82k

OHMEGA 311 Technical Manual
Section 14 Circuit Breaker Fail 67k

Technical Report
Communication Interface Manual 1.3Mb
Current Transformer Requirements 104k
Fibre - Optics Application Guide 101k
Wiring Diagrams
 Wiring Diagrams for OHMEGA 311
Panel Drilling Diagrams
 Panel Drilling Diagrams for OHMEGA 311