Configuration; Configuration Of Functions - Siemens SIPROTEC 7SA6 Manual

Distance protection relay for all voltage levels

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Table of Contents

Configuration

Determination of

Functional Scope

The 7SA6 relay contains a series of protective and additional functions. The scope of

hardware and firmware is matched to these functions. Furthermore, commands (con-

trol actions) can be suited to individual needs of the protected object. In addition, indi-

vidual functions may be enabled or disabled during configuration, or interaction be-

tween functions may be adjusted.

In the following, an example for the configuration of the functions:

A substation has overhead line and transformer feeders. Fault location must only be

carried out on the overhead lines. This function therefore is disabled for devices on

transformer feeders.

The available functions must be configured as enabled or disabled. For individual

functions, the choice between several alternatives may be presented, as described

Functions configured as disabled are not processed by the 7SA6. There are no

messages, and corresponding settings (functions, limit values) are not displayed dur-

ing detailed settings.

Available functions and default settings depend on the ordering code of the relay (see

ordering code in the appendix for details).

Configuration settings may be entered using a PC and the software program DIGSI

and transferred via the operating interface on the device front, or via the serial service

interface. Operation via DIGSI

manual, order number E50417–H1176–C097.

Entry of password No. 7 (for setting modification) is required to modify configuration

settings (see Chapter 4, last section). Without the password, the settings may be read,

but cannot be modified and transmitted to the device.

The functional scope with the available options is set in the Device Configuration

dialogue box (see Figure 5-1) to match equipment requirements. To change a func-

tion, click on the corresponding line under Scope, and select the desired option in the

list which appears. The drop-down list closes automatically upon selection of an item.

4 is described in Chapter 4 as well as in the DIGSI

C53000-G1176-C156-2