Power System; Installation Settings - GE D90 Plus Instruction Manual

Line distance protection system

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Table of Contents

CHAPTER 7: PROTECTION

Power system

LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL

supervise the comparator. The BLOCK input is used as one of the inputs to RUN

setting: This setting is used to control whether the pickup, dropout or operate

states are recorded by the event recorder. When set to "Disabled", element pickup,

dropout or operate are not recorded as events. When set to "Enabled", events are

created as follows:

<Element> PKP

<Element> DPO

<Element> OP

The dropout event is created when the measure and decide comparator output

transits from the pickup state (logic 1) to the dropout state (logic 0). This could happen

when the element is in the operate state if the reset delay time is not zero.

The following section describes settings relevant to the D90

Select the Settings > Protection > Power System > Installation menu item to open the

installation settings window.

The following settings are available.

Relay Settings

Range: Programmed, Not Programmed

Default: Not Programmed

To safeguard against the installation of a device without any entered settings, the

will not allow signaling of any output relay until this setting value is

"Programmed". This setting is defaulted to "Not Programmed" when at the factory. The

UNIT NOT PROGRAMMED

the programmed state.

Range: up to 20 alphanumeric characters

Default: -----

This setting allows the user to uniquely identify a relay. This name will appear on all

generated reports.

Figure 149: Installation settings

self-test error message is displayed until the relay is put into

POWER SYSTEM

power system.