Auxiliary Voltage - GE KVGC 202 Technical Manual

KVCG202/EN M/H11
8.3.3

Auxiliary voltage

The burden on the auxiliary supply depends upon the number of output relays and control
inputs energised.
DC supply
AC supply
8.3.4 Opto-isolated inputs
DC supply
8.4 Control function setting ranges
Setting
Regulated voltage
Deadband
Resistive line drop compensation
Reactive line drop compensation
Circulating current compensation
Load shedding/boosting
Total taps available
Maximum tap position
Minimum tap position
Total number of tap changes
Tap changer operations
Time period
Intertap delay
Tap pulse duration
Tap change indication time
8.5 Time delay setting ranges
8.5.1 Inverse time delay
The general expression for the inverse time curve:
where
N indicates % deviation from Vs in multiples of Vdb% and is calculated as:
 
{Vreg - Vs}

Vs
N =
 
dVs
where Vreg
2.5 – 6.0W at Vx max with no output relays or logic inputs energized
4.0 – 8.0W at Vx max with 2 output relays & 2 logic inputs energized
5.5 – 12W at Vx max with all output relays & logic inputs energized
6.0 – 12VA at Vx max with no output relays or logic inputs energized
6.0 – 14VA at Vx max with 2 output relays & 2 logic inputs energized
13 – 23VA at Vx max with all output relays & logic inputs energized
0.25W per input (50V 10ký)
t = k + [ (initial time delay setting) x ( 1/N ) ]
k = 0.5 for initial time delay setting -20s
= 0 for initial time delay setting >20s
 
* 100

 
= Voltage to be regulated (90 to 139V in step 0.1V)
Vs = Voltage setting
dVs = Dead band ((0.5% to (20% of Vs in step 0.1%)
Symbols Setting range
Vs 90 – 139V
dVs ±0.5 % to ±20 % of Vs
Vr 0 – 50V
Vxl –50 – +50V
Vc 0 – 50V
0 – ±10 % of Vs
TapsAvail 1 – 30
TP> 1 – 40/ 1 – 30
TP< 1 – 30/ 1 – 30
TotalOps> 1 – 10000
Ops/tP> 1 – 100
tP 0 – 24 hrs
tINTER 0 – 120 seconds
tPULSE 0.5 – 5 seconds
tTapChange 1 – 3 seconds
Technical Manual
KVGC202
Step size
0.1V
0.1%
1.0V
1.0V
1.0V
1%
1
1
1
1
1
1 hr
0.1s
0.5s
0.1s