Siemens 7SA511 manual Signal Transmission Test, Addr Setting Option Description

7SA511 Line Protection Relay Acc ptance Tests

the voltage and current should be approximately 0￿. Wait at least 1 second after completing input adjustments to ensure that all time delays have expired. Press the TargetResetkey.

6.Decrease the input voltage (equally for all three phases) to zero. Wait at least 1 second after completing input adjustments to ensure that all time delays have expired before examining the results. Verify that Trip Relays 3, 4, and 5 (O/S Trip) are all closed.

3.12 Signal Transmission Test

When using a pilot protection feature, transmit and receive circuits can be checked. You will need to simulate a short circuit in the zone applicable to your relay’s pilot protection configuration. Table 3-23 describes the pilot protection configuration options and identifies which test to perform for your relay configuration.

Table 3-23. Options Available for Pilot Protection

Addr.	Setting Option	Description
7804	NON EXIST	Pilot protection is not available.
2101	ON	The Permissive Underreach Transfer Trip (PUTT) mode is
		active.
2201	ON	The Permissive Overreach Transfer Trip (POTT) mode is
		active.

Test

N/A

Section 3.12.1

Section 3.12.2

Prerequisite Setting (applicable only to relay models 7SA511*-**A5*-**B/C/F/G*)

Addr.

3401

LCD Text

AR FUNCT

Description

Turn the automatic reclose function on or off

Setting

OFF

3.12.1 Permissive Underreach Transfer Trip (PUTT)

Before beginning this test, you must check the setting at address 2102 to determine the zone in which you will simulate a short circuit (Z1 or Z1B). Table 3-24 identifies, based on the setting at address 2102, in which zone you will need to simulate a short circuit. The binary input with function >Dis.Recept (FNo 082) assigned (factory preset is Binary Input 5) must be activated after the fault is simulated. Timing of the receive signal relative to the fault will affect test results as indicated in Table 3-24.

Once initiated, the transmission signal should be at least as long as the setting at address 2103 (T- SEND-PRL).

July 27, 1995 3-25