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

OHMEGA 305 - 7SG16

The Ohmega relays are a range of numeric impedance measuring distance protection relays. Functionality:
- 50Hz
- 3 Zone mho distance
- high set overcurrent
- voltage transformer superv'n
- power swing blocking
- switch on to fault
- signalling schemes

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Documentation

Catalogue Sheet
OHMEGA
Catalogue Sheet 894k

Technical Manual
OHMEGA 300 and 400
list of models 16k

OHMEGA 305
Site Testing Schedule 800k

OHMEGA 305 Technical Manual
Contents 153k

OHMEGA 305 Technical Manual
Section 01- Description of Operation 150k

OHMEGA 305 Technical Manual
Section 02- Impedance Function 118k

OHMEGA 305 Technical Manual
Section 03- Protection Schemes 62k

OHMEGA 305 Technical Manual
Section 04- Relay Settings 51k

OHMEGA 305 Technical Manual
Section 05- Performance Specification 90k

OHMEGA 305 Technical Manual
Section 07- Application Guidelines 211k

OHMEGA 305 Technical Manual
Section 08- Installation 11k

OHMEGA 305 Technical Manual
Section 10- Maintenance 8k

OHMEGA 305 Technical Manual
Section 11- Diagrams 541k

Technical Report
Communication Interface Manual 1.3Mb
Current Transformer Requirements 104k
Fibre - Optics Application Guide 101k
Wiring Diagrams
 Wiring Diagrams for OHMEGA 305
Panel Drilling Diagrams
 Panel Drilling Diagrams for OHMEGA 305