Siemens SIPROTEC Manual page 392

Line differential protection with distance protection

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Table of Contents

2.21 Fault Locator

If multiple line sections (address 160 = 2 Sections or 3 Sections) are set, you must set the following pa-

For line section 1 set the addresses:

• 6009 S1: XE/XL,

• 6010 S1: RE/RL or

• 6011 S1: K0,

• 6012 S1: angle K0.

For line section 2 set the addresses:

• 6029 S2: XE/XL,

• 6030 S2: RE/RL or

• 6031 S2: K0,

• 6032 S2: angle K0.

For line section 3 set the addresses:

• 6049 S3: XE/XL,

• 6050 S3: RE/RL or

• 6051 S3: K0,

• 6052 S3: angle K0.

Double-ended fault location requires that the devices are configured with the same data at both ends, i.e., if

there is more than one line section, the values configured for device B must mirror the data of device A. This

means for two line types that line section 1 and 2 configured for device A must be line section 2 and 1 of device

If the devices are correctly configured, indication no. 1111 „FL active" will be output as ON.

If address 160 is set to 2 Sections or 3 Sections, the line impedance angle of the first line section must

be set at address 6001 S1: Line angle, the reactance per unit length at address 6002 S1: x', and the

capacitance per unit length at address 6003 S1: c'. The line section length is entered at address 6004 S1:

Line length. All values refer to kilometer as distance measuring unit. If you want to use miles as reference

values, the addresses relevant for you are 6002, 6003 and 6004.

The central phase of your transmission tower layout is specified at address 6008 S1: center ph.. Setting

6008 = assumes a symmetrical layout.

Line sections 2 (A2) and 3 (A3) are configured in the same way as described above. For setting values please

refer to Table 2-16.

SIPROTEC, 7SD5, Manual

C53000-G1176-C169-5, Release date 02.2011