Power Supply Unit (Psu); Operator Interface/ Fascia; Figure 2-1 7Sr24 With 3 + 16 Leds In E8 Case - Siemens 7SR242 Manual

Hide thumbs Also See for 7SR242:

Table of Contents

2.4

Power Supply Unit (PSU)

The relay PSU can be directly connected to any substation dc system rated from 30V dc to 220V dc.

In the event of the station battery voltage level falling below the relay minimum operate level the PSU will

automatically switch itself off and latch out – this prevents any PSU overload conditions occurring. The PSU is

reset by switching the auxiliary supply off then on.

2.5

The operator interface is designed to provide a user-friendly method of controlling, entering settings and retrieving

data from the relay.

The fascia is an integral part of the relay. Handles are located at each side of the element to allow it to be

withdrawn from the relay case.

Relay Information

Above the LCD three labels are provided, these provide the following information:

1) Product name and order code.

2) Nominal current rating, rated frequency, voltage rating, auxiliary dc supply rating, binary input supply

rating, configuration and serial number.

3) Blank label for user defined information.

A 'template' is available within the 'Reydisp' program to allow users to create and print customised LED label

inserts.

Figure 2-1

7SR24 with 3 + 16 LEDs in E8 Case

NOTE: Pushbuttons on cover not shown

7SR242 Duobias Description Of Operation

Chapter 1 Page 14 of 52

Table of Contents

Show Quick Links

Table of Contents