GE D90 Plus Instruction Manual page 380

Line distance protection system

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CONTROL ELEMENTS

Breaker flashover settings

Select the Settings > Protection > Control > Breaker Flashover menu item to open the

breaker flashover configuration window.

Figure 308: Breaker flashover configuration settings

The following settings are available for each breaker flashover element.

Range: Enabled, Disabled

Default: Disabled

This setting enables and disabled the breaker flashover protection element.

Range: LINE (SRC 1), BKR 1 (SRC 2), BKR 2 (SRC 3)

Default: LINE (SRC 1)

This setting specifies a signal source used to provide three-phase voltages and three-

phase currents from one side of the current breaker. The source selected as a setting

and must be configured with breaker phase voltages and currents, even if only three VTs

are available across the breaker.

Range: None, LINE (SRC 1), BKR 1 (SRC 2), BKR 2 (SRC 3)

Default: varies with UR

This setting specifies a signal source used to provide another set of three phase voltages

whenever six VTs are available across the breaker.

Status Closed A, Status Closed B, Status Closed C

Range: any FlexLogic™ operand or shared operand

Default: BKR1 CLOSED

These settings specify operands to indicate the open status of the breaker. A separate

operand can be selected to detect individual breaker pole status and provide flashover

detection. The recommended setting is 52a breaker contact or another operand

defining the breaker poles open status.

-series model; refer to the EnerVista UR

LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL

CHAPTER 7: PROTECTION

Setup software