Table 3 Switchgear control based on control authority6.

From: A novel hybrid methodology to secure GOOSE messages against cyberattacks in smart grids

Control parameters

Control authority at each level

Switch

Bay control

Manual control

Originator category (OrCat)

XCBR.Loc

XSWI.Loc

LLNO.MltLev

CSWI.Loc

CSWI.LocSta

Processa

Bayb

Stationc

Remotec

TRUE

FALSE

Not applicable

Not applicable

Always allowed

Not allowed

Not allowed

Not allowed

FALSE

FALSE

TRUE

Not applicable

Always allowed

Always allowed

Not allowed

Not allowed

FALSE

FALSE

FALSE

TRUE

Always allowed

Not allowed

Always allowed

Not allowed

FALSE

FALSE

FALSE

FALSE

Always allowed

Not allowed

Not allowed

Always allowed

TRUE

TRUE

Not applicable

Not applicable

Always allowed

Not allowed

Not allowed

Not allowed

FALSE

TRUE

TRUE

Not applicable

Always allowed

Always allowed

Not allowed

Not allowed

FALSE

TRUE

FALSE

TRUE

Always allowed

Always allowed

Always allowed

Not allowed

FALSE

TRUE

FALSE

FALSE

Always allowed

Always allowed

Always allowed

Always allowed

  1. aCurrent and voltage transformers (CT/VT) connected to MU.
  2. bSwitch controller communicating at process level with MU via SV and CB via GOOSE and MMS.
  3. cCommunication with switch controller via MMS.
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