DEMA CPM 310 G User Manual page 211

Technical Characteristics
2.7 Multi-shot Auto-reclose Function (ARCL) [ANSI 79]
Shots
Auto-reclose Triggers
Auto-reclose Blocking Conditions
Dead Time and Setting Ranges
Reset Delay Setting
Inhibit Time Delay
2.8 Automatic Control Functions
2.8.1 Cold Load Pickup
Thresholds used with Cold Load Pickup
Threshold Setting Range
Delay Setting Range
2.8.2 Programmable Outputs Settings
Programmable Output Assignment
Options
2.8.3 Trip Settings
Functions available to assign to Trip
Relay
2.8.4 Programmable Input Settings
Functions available to assign to
Programmable Inputs
2.8.5 Blocking Logic Settings
Blocking Logic Selectivity Groups
Trigger Options
2.8.6 Circuit Breaker Pole Failure Settings [ANSI 50BF]
Current Sensing Threshold Range
Delay Setting Range
2.8.7 Auxiliary Timer Settings
Quantity of timers
Trigger Options
Setting Range
1≤n≤4
Below thresholds can be set independently for each shot.
Phase Thresholds: tI>, tI>>, tI>>>
Earth Thresholds: tIe>, tIe>>, tIe>>>
Auxiliary Timers: tAux1, tAux2.
Below conditions blocks auto-reclose cycles automatically:
* Manual blocking,
* Activation of a "Block ARCL" assigned input,
* CB Charging Spring Failure, CB Trip Time Error, CB Close Time Error,
* CB Pole Failure,
* Activation of a protection function during Inhibit Time,
* Manual closing of circuit breaker.
4 programmable dead time setting, abbreviated as tD1, tD2, tD3 and tD4.
Setting range: (0.01-300) s, step: 0.01 s
tR: (0.2-600) s, step: 0.01 s
tIN: (0.2-600) s, step: 0.01 s
I>, I>>, I>>>, I >, I >>, I >>>, I
e e e
%(20-500), in steps of %1
(0.1-3600) s, in steps of 0.1 s
Trip, I>, I>>, I>>>, tI>, tI>>, tI>>>, Ie>, Ie>>, Ie>>>, tIe>, tIe>>, tIe>>>,
tI<, tI2>, tI2>>, Trip Θ, Thermal Alarm Θ, CB Alarm, 52 Failure, Broken
Conductor, CB Failure, CB Close, tAux1, tAux2, ARCL Running, ARCL Blocked,
Buchholz Alarm, Buchholz Trip, Temp. Alarm, Temp. Trip.
tI>, tI>>, tI>>>, tI >, tI >>, tI
e e
Conductor, tAux1, tAux2, Buchholz, Temperature, Pressure.
Passive, Unlatch, 52 a, 52 b, CB Position, Start Aux1, Start tAux2, Blocking Sel.1,
Delaying Sel.1, Start Wave Record, Cold Load Pickup, Spring Failure, Change
Settings Group, Block ARCL, Reset %Θ, Trip Circuit Supervision, Reset RL1-RL6,
Reset LED, Pressure Trip, Buchholz Alarm, Buchholz Trip, Temperature Alarm,
Temperature Trip, Blocking Sel.2, Delaying Sel.2.
2 groups, 1 setting for each group.
tI>, tI>>, tI>>>, tI >, tI >>, tI
e e
tAux2.
I< : (0.02-1) I , in steps of 0.01 I
n
tCBF : (0.1-10) s, in steps of 0.01 s.
2 independent auxiliary timers.
Via programmed input.
tAux1 & tAux2 : (0-600) s, in steps of 0.01 s
- 211 -
>, I >>.
2 2
>>>, tI<, tI >, tI >>, Thermal Trip Θ, Broken
e 2 2
>>>, tI<, tI >, tI >>, broken conductor, tAux1,
e 2 2
n.