Output Relay Dwell Time Menu; Led Configuration Menu - Siemens 7SG164 Ohmega 400 Series Manual

Zone 4 Trip
When Direct Zone 4 tripping is enabled, and zone 4 operates, this output will be operated.
SOTF Operated
Indicates that a Switch-onto-fault Operation has occurred.
DAR Lockout
Operates when a trip occurs which should not initiate Autoreclose, i.e. a Zone 2 or Zone 3 fault. May be used to
prevent operation of an external Autorecloser.
Power Swing Alarm
Operates when the System impedance characteristic has entered the Power Swing Detection Zone and remained
there for longer than the PSD Transit time.
VTS Alarm
Operates when one or more phases of the Voltage Transformer fails.
3 Ph V Chk Alarm
Indicate that the three pole voltage check has operated. That is, the status input defined as 3 Ph V Chk Enable is
energised and the voltage is below the VTS 3PV Level.
Signal Send 1
Operates according to the selected scheme to send either a permissive signal or a blocking signal to the remote
end.
Signal Received 1
Operates on receipt of a signal from the remote end distance relay.
Signal Received 2
Not Used
Carrier Failed
Operates when the carrier guard SI has operated because of a faulty signalling channel.
Input 1..7 Operated
Each of these will operate when the respective inputs are energised.
Hand Reset Outputs
Indicates which Outputs are latched.
Fast Reset Outputs
Output relays selected here will be reset more frequently than standard relays.
Inhibit Outputs
Outputs relays listed here will be disabled when the Inhibit Inputs status input is energised.

2.8 Output Relay Dwell Time Menu

This menu is used to set a minimum operating time for each output relay in turn. i.e. if the stimulus causing the
relay is of short duration the relay out put relay operation will be extended beyond the drop-off of the stimulus.

2.9 LED Configuration Menu

With the exception of the "Protection Healthy" item, this menu has the same relay outputs as the output
Configuration menu and these can be used to energise any of the LED flags.
©2013 Siemens Protection Devices Limited
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7SG1641 Ohmega 402 60 Relay Settings
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Chapter 4 Page 17 of 20