CHAPTER 5: SETPOINTS 5.2 PRODUCT SETUP
GEK-106310-AF F650 DIGITAL BAY CONTROLLER 5-19
5.2.4 Oscillography settings
Oscillography records contain waveforms captured at the sampling rate as well as other relay data at the point of trigger.
This trigger can be configured with a programmable logic operand.
Oscillography records are stored in COMTRADE ASCII - IEEE C37.111-1999 standard format.
The oscillography module is in charge of storing the instantaneous values of the 9 analog signals and the 16
programmable digital signals at Setpoint > Relay Configuration > Oscillography in fault conditions (OSCILLO TRIGGER
signal activation).
All oscillography records store all analog signals (fixed) plus 16 digital signals (programmable). The order of storage in the
case of analog signals is as follows:
Analog 1 IA channel.
Analog 2 IB channel.
Analog 3 IC channel.
Analog 4 IG channel.
Analog 5 ISG channel.
Analog 6 VA or VAB channel, depending on the selected configuration (Wye or Delta, at “Setpoint>System Setup >
General Settings > Serial VT Connection”).
Analog 7 VB or VBC channel, depending on the selected configuration (Wye or Delta, at “Setpoint>System Setup >
General settings > Phase VT Connection”).
Analog 8 VC or VCA channel, depending on the selected configuration (Wye or Delta, at “Setpoint>System Setup >
General settings>Phase VT Connection”).
Analog 9 VN or VX channel, depending on the selected configuration (zero sequence measured, or busbar voltage, at
“Setpoint>System Setup>General settings>Auxiliary Voltage”).
The 16 digital channels and the oscillography trigger signal are programmable using the EnerVista 650 Setup software at
Setpoint > Relay configuration > Oscillography. Each digital channel can be associated with a single status or to a logic
status. In this last case, the logic must be configured using the PLC Editor tool, at Setpoint > Logic Configuration inside
EnerVista 650 Setup. The oscillography trigger signal can be a single status or a configured logic. The relay’s default
configuration associates the oscillography trigger to Virtual Output 83, which corresponds to the logic associated with the
general trip of protection elements.
5.2.4.1 Oscillography settings
Function Permission (Function): Enabling this setting allows to create an oscillography record when the “TRIGGER
OSCILLO” signal is activated.
Trigger Position: This setting defines the prefault data (in percentage) stored every time a new oscillo is
produced.
Samples/Cycle: This setting defines the number of samples per cycle stored in each oscillography
record.
Setpoint > Product Setup > Oscillography
Setting Description Name Default Value Step Range
Function Permission Function ENABLED N/A [DISABLED – ENABLED]
Prefault Trigger Position 30 1% [5 : 95]
Samples per cycle Samples/Cycle 64 N/A [4 – 8 – 16 –32 – 64]
Maximum number of oscillos Max. Number Osc. 4 1 oscillo [1 : 20]
Automatic oscillography overwrite Automatic Overwrite DISABLED N/A [DISABLED – ENABLED]
Snapshot Event generation Snapshot Events ENABLED N/A [DISABLED – ENABLED]
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