Siemens 7SA511 manual Line-NeutralVL2 Voltage Inputs

7SA511 Line Protection Relay Chapter 4

(1) Option dependent sensitivity of IE input

- Normal sensitivity or - High sensitivity for

ground fault detection in ungrounded systems

VL1

Line-NeutralVL2

Voltage Inputs

VL3

VN

	VL1
Line-Line	VL2
Voltage Inputs
	VL3
Neutral	VE
Voltage Inputs

Factory Presets: 1 - >Reset LED

2 - >VT mcb Trip

3 - >CB Aux.cont

4 - >Manual Close

5 - >Dist. Recept

6 - >Dist.RecFail

7 - >CB ready

8 - >AR block

9 - >AR on

10- >AR off

Figure 4-8. Flush Mount Connection Diagram. (See Figure 4-9 for communications connections.)

Factory Presets:

1 - Reclose

2 - General fault detection

3 - Trip command L1

4 - Trip command L2

5 - Trip command L3

Note: All relays shown in de- energized position

Factory Presets:

1 - Dist. Send

2 - AR inoperative

3 - CB Alarm Suppressed

4 - Measured value supervision

5 - Relay Failure

6 - Device Trip

7 - Fault detection L1

8 - Fault detection L2

9 - Fault detection L3

10 - Fault detection E

11 - Reverse direction

July 27, 1995 4-13