function
switch
position
|
Power Factor Correction Function |
+ - Control Effect |
0
|
Relay out of circuit
|
% settings of defective capacitor steps can be adjusted between 10 ... 60% of nominal kvar stored in memory after first energisation
Factory Setting 10%
|
1 |
Selection of target Power Factor |
Adjustable from 0.70 lag to 0.90 lead
Factory Setting 1.0
|
2 |
Switching step time delay |
Adjustable 5 ... 1200 secs Factory setting 40 secs
|
3 |
Relay in Automatic Mode. System Power Factor displayed on LED. On CXM version U-I-P-S-Q-F displayed |
|
4 |
Relay in manual mode |
Switches steps in/out H (Hand) will show in display alternately with system, PF |
5 |
Step Limit Switch |
Limits the number of steps to be switched |
6 |
Shows any defective capacitor steps |
Enables you to scroll through each step to see which if any are defective |
7 |
Contactor Switch Operation Counter |
Enables you to scroll through each contactor and examine the number of times it has switched |
8 |
Comparator of Actual kvar of each step to kvar when originally installed |
Scrolls through each step to check how the actual kvar per step (L) compares with the value when first installed (F) |
9 |
Activation/De-activation of Alarms |
0= Alarms de-activated
1= Automatic re-set once the alarm situation is rectified
2= Alarm is stored and displayed on LED
3= Alarm stored on display is cancelled by holding + for at least 5 secs |
A |
Where two target p.f. tariffs are available
The two PF different settings 1-2 can be selected
|
1= Normal PF Target
2= Second PF Target
Factory Setting = 1
|
B |
A-Symmetrical step switch time
Useful to reduce contactor wear on rapidly fluctuating kvar loads. Quick in /Slow out. The switch out time selected in 2 above will be extended by the factor selected when switching out
|
Varies ratio of switch in/out time for each step
Factory setting = 1
(Equal time delay for in/out)
Adjustable 1 ... 99
|
C |
Lock Out time Controller. Used on rapidly fluctuating loads, to reduce contactor wear. This time is added to the switch time selected in 2 above when kvar load reversal rapidly occurs
|
Adjustable from 1 ... 254 secs. For extended lock out time
Factory setting = 30 secs
|
D |
Only used on the Multi-Meter Version CXM
To set the C.T ratio |
Set CT Ratio on CXM Version only
Factory Setting = 100
|
E |
Only used on the Multi-Meter Version CXM
To set the V.T ratio |
Set VT Ratio on CXM Version only
Factory Setting = 1
|
F |
Allows de-commissioning of the self select programme, so as to achieve LIFO ( Last in First Out) for tuned filter circuits |
Auto = self select std setting
1111= Last in First Out sequential switching for Eaut = Instrument measures on single phase
E111 = LIFO for single phase measurement
|
FACTORY DEFAULT SETTINGS IN BOLD PRINT
|