DEMA CPM 310 G User Manual page 212

Digital overcurrent protection relay
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Technical Characteristics
2.8.8 Delaying Logic Selectivity Settings
Delaying Logic Selectivity Groups
Trigger Options
Delaying Range
2.8.9 Circuit Breaker Supervision Settings
CB Opening Time Supervision
CB Closing Time Supervision
CB Open Pulse
CB Close Pulse
CB Spring Supervision
CB Numerator Supervision
∑ (Total Amperes) Supervision
∑² (Total Amperes-square)Supervision
Trip Circuit Supervision
2.8.10 Programmable LED Settings
Programmable LEDs
Functions available to assign to
Programmable LEDs
Labels available to assign to
Programmable LEDs
2.8.11 Latching Settings [ANSI 86]
Latchable Outputs
Functions available to force trip relay
latching.
Functions available to force
programmable outputs latching.
2.8.12 Alarm Settings
Auto-reset Option for Alarm Menu
Threshold Alarm Hiding Option
2.8.13 Loading Default Settings
Loading Default Settings option is available at "MENU » System Settings" address. Password is required to carry out the
task.
2 groups, 1 setting for each group.
tI>>, tI>>>, tI
>>, tI
>>>
e
e
(0-500) s, in steps of (0-01) s.
Setting range: (0.05-1) s, in steps of 0.01 s.
Setting range: (0.05-1) s, in steps of 0.01 s.
Setting range: (0.1-5) s, in steps of 0.1 s.
Setting range: (0.1-5) s, in steps of 0.1 s.
Setting range: (0.1-600) s, in steps of 0.01 s.
Setting range: 0-65355, in steps of 1.
Setting range: (0-12,000x104) A, in steps of 1 A.
Setting range: (0-30,000x108) A², in steps of 1 A².
Triggers when the signal is lost on a programmed input.
tTCS : (0.1-15) s, in steps of 0.1 s.
There are 8 programmable LEDs displayed as L5, L6, ..., L12 symbols on the
display. The LED Menu is accessed by hitting the Reset button once while on any
menu. Any activated LEDs will flash on the menu automatically.
One or more of the functions listed below are available for assigning to any of the
programmable LEDs. The label for the LED is set independently, as a LED may
represent several functions.
I>, I>>, I>>>, I
>, I
>>, I
>>>, tI>, tI>>, tI>>>, tI
e
e
e
Trip Θ, Broken Conductor, CB Failure, Programmable Inputs (#1, #2, #3, #4, #5,
#6, #7), tAux1, tAux2, Cold Load Pickup, ARCL Running, ARCL Blocked, Buchholz
Alarm, Buchholz Trip, Temp. Alarm, Temp. Trip, CB Alarm, I
I<, tI<, Pressure Trip.
The label for each LED is set to only one of the functions listed above.
Trip Relay and programmable outputs from RL1 to RL6.
tI>, tI>>, tI>>>, tI
>, tI
>>, tI
e
e
Conductor, tAux1, tAux2, RL1-RL6, Buchholz Trip, Temperature Trip, Pressure
Trip.
Any function that is assigned to an output may be set to latch the output.
Automatic (new alarms are overwritten to the old ones) or Manual (new alarms
are recorded to the front lines, olds are kept below).
Disturbances are shown or hidden by the option.
- 212 -
>, tI
>>, tI
e
e
>>>, tI<, tI
>, tI
>>, Thermal Trip Θ, Broken
e
2
2
>>>, Thermal
e
>, I
>>, tI
>, tI
>>,
2
2
2
2

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