7SA511 Line Protection Relay

Commissioning the Relay

Table 7-1 identifies the addresses used to run this test.

Table 7-1.Address Block 4200 Test Options.

Addr.

4201

4202

4203

4204

4205

4206

4207

4208

4209

4210

4211

4212

Measurement Loop

L1-E

L1-E

L2-E

L2-E

L3-E

L3-E

L1-L2

L1-L2

L2-L3

L2-L3

L3-L1

L3-L1

Test

Directional Test Load Impedance Test

Directional Test Load Impedance Test

Directional Test Load Impedance Test

Directional Test Load Impedance Test

Directional Test Load Impedance Test

Directional Test Load Impedance Test

Test Procedure

Follow this procedure to run the directional test:

1. Select add 4TEST20s block0D4200IRE. CTIONAL

2. Press the 4L201DIREC1E?k y to go to the.nextTESTaddress as shown below.

3.Press the Yesk y to start the test. The selected measurement loop (e.g., L1E) carries out a directionalForwardcheck and indicates the result on the display. There are three possible results:

RevrseDir

￿undfined

load flow is forwards load flow is backwards

directional determination is not possible

( e.g., current is too small or a borderline condition exists

7-6

July 27, 1995

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Siemens 7SA511 manual Measurement Loop, Test Procedure