KAEL ke-FKR4 User manual

Digital Phase
Failure and
Phase Sequence
Device
ke-FKR4 (D)
Phase Sequence Control
Over Voltage Protection
nder Voltage Protection
nbalanced Voltage
Protection
Over Frequency
Protection
nder Frequency
Protection
TR E RMS
Latch Function
VL1,VL2,VL3
VL12,VL23,VL13
General
In three phase systems, it measures
RMS values of AC voltages and system
frequency sensitively. Using up direction
button Select) phase-neutral voltages and
phase-phase voltages monitor sequentially
ke-FKR4 D) has many features.
Those are;
- Phase Failure
- Phase Sequence
- Over Voltage Protection
- Under Voltage Protection
- Voltage Unbalance asymmetry)
Protection
- Over Frequency Protection
- Under Frequency Protection
When device is turn on if its adjusted
voltages and frequency in its interval and
if phase sequence is correct relay switch on.
If any of error occurred except phase failure
and phase sequence ) at the end of adjusted
time relay switch off its contact. When system
return normal values, at the end of time out
relay switch on.
L1
L2
L3
Re
< t-3 t-3
Phase Failure: (u- )
Before starting system , it controls phase absence then if all phases exits Normal
LED turn on and relay contact switch on. In case of missing of any L1,L2,L3
phases , Normal LED turn off and relay switch off its contact .In this case when
pressing Reset button, u- warn appears on display.
VL1
Display
Function:
L1 L2 L3
L1 L2 L3
VL2
L1 L2 L3
VL3
L1 L2 L3
VL12
L1 L2 L3
VL23
L1 L2 L3
VL13
Select: Up direction) when
pressing continuously,
screen displays frequency
of system. When button
release device continue
to show voltage.
IMPORTANT: L1 - N is device supply inputs. Thus,the applied L1 – N voltage
must be rated voltage of system .
The measured frequency also must the frequency of the system.
Voltage nbalanced: (unb)
The phase-phase voltage unbalance limit can be adjusted between %5-%20) .
When it exceeds the adjusted limit , the device switched off its out contact
at the end of t-1 delay. In this case when pushing Reset button unb warn
appear on the screen. For the returning normal state, asymmetry values
should under % 20 hysteresis value). In this case at the end of t3 time Normal
LED turned on and output contact switch on. If the phase-phase voltage
unbalance, return adjusted value shorter than t-1 time, output relay does not
release its contact. Hysteresis is %20.
.
Example: Let's say that asymmetry value is set to 15% for a 3 x 380VAC.
In this case, relay contact switch off at 380- 380x0.15))=323 V.
Switch on the contact is performed at 323+ 380x15%x20%)= 334V.
20% is the hysteresis).
Vmax - Vmin)
% un b = x 100 Hys = 380 x % Asm) x % 20)
380
Re
L1,L2,L3 L2,L3
L1
L2
L3
Phase Sequetion: (Seq)
In case of wrong phase order , Normal LED turned off and relay contact is
not switch on. In this case if Reset button pushes seq warn displayed. If
phase order is corrected , Normal LED turned on and out relay switch on.
Hys
+ % unb
Vnom
Hys
Level Re
- % unb
t-1 < t-1 t-1
L1,L3,L2L1,L2,L3
t-3 t-3
V
Re t
t
t-1
o-U)
u-U)
t-3 t-1 t-3
Umax
Umin
Under Voltage
Over Voltage L1,L2,L3
Normal
Normal
Over and nder Voltage : (o- ),(u- )
Under voltage u-U) it can adjusted between Umin= 300 – 370 V).
Over voltage o-U) it can adjusted between Umax= 390 – 460 V).
If the voltage drops below the adjusted under voltage limit, when u- shows
on the screen and device switch off its output contact end of the t-1 time
Normal LED turned on .In this case when pushing Reset button u- warn
appear on its screen.
If the voltage exceed the adjusted over voltage limit, Normal LED turned off
and output relay switch off. In this case when pushing Reset button o- warn
appers on its screen.
LOCKING F NCTION : (LATCH)
It can be controlled by two parameters. Locking time and Locking counter.
If the number of opening reaches the adjusted locking counter withing the
adjusted locking time then device switch off its contact and locks its
functions until the user pressed Reset button.
If the locking counter is adjusted to oto then this function is disable and
device never locks itself.
L-t : Locking Time 001 – 060 min. )
It is well know the frequently occurring faults may damage system. For that
the device when number of faults reaches the adjusted locking number
within this locking time. This way the system is protected and user has
chance to investigate the problem.
L-C : Locking Counter oto , 001 – 010 piece )
The number of faults allowed within the period L-t. If number of faults
exceeds this adjusted counter value device locks itself. User must press
Reset button then the fault passes in order to unlock the device.
If L- C is set to oto then this property is disabled.
®

V
Re t
t
o-U)
u-U)
t-3
Over Voltage
1. Error L1,L2,L3
Normal
Normal
L-C number of lock) = 2 piece
L-t lock time) = 3 min. if select ;
t-1 t-1 t-3
Pushed to Reset button
and Lock have reseted.
Locked occurred
< 3 minutes
Over Voltage
2. Error
Over and/or nder Frequency Protection : ( 40 – 70 Hz )
Under Frequency be able to set between u-F) = 40 Hz ..............[ o-F) - 0,4]
Over Frequency be able to set between o-F) = [ u-F) + 0,4]..... 70 Hz
If required , it can be set only under frequency or only over frequency protection
as well as both of protection can be disabled.
If o-F = 55 Hz and u-F = oFF set, device works as over frequency protector
only. if system frequency above 55 Hz, under screen displays o-F warning and
end of time t-2 relay switch off its output contact )
if o-F = oFF and u-F = 45 Hz set , device works as under frequency protector
only . if system frequency below 45 Hz, under screen displays u-F warning and
end of time t-2 relay switch off its out contact.)
if o-F = oFF and u-F = oFF set, frequency protection is disabled.
Re t
t
t-2
o-F)
u-F)
t-3 t-2 t-3
55 Hz
45 Hz
Under Frequency
Over Frequency L1,L2,L3
Normal
Normal
f Hz)
Parameters :
Device protection function can be set this portion .In this portion entering pushing
SET button until appears o- .
First parameter ;
o- : Over Voltage Setting between 390 V – 460 V can be set)
Between phase-phase voltages ,in case of over adjusted values, device end of the
time t-1 output relay switch off its contact .
u- : nder Voltages Setting between 300 V – 370 V can be set)
Between phase-phase voltages ,in case of under adjusted values, device end of
the time t-1 output relay switch off its contact .
unb : nbalanced Voltage (asymmetry) Setting 0,05 – 0,20 )%5 – 20
Between phase-phase voltages ,in case of under adjusted % value,device end of
the time t-1 output relay switch off its contact .
t-1 :On Delay Time (Voltages) 00,1 – 99,9 sec)
When occurred over voltage , under voltage and unbalanced voltage, if error
stretch t-1 time ,device out relay switch off.
t-2 : On Delay Time (Frequency) 00,1 – 99,9 sec)
When over and under frequency occurred, if error stretch t-2 time, device output
relay switch off.
t-3 : Returning Delay (Voltage and Frequency) 00,1 – 99,9 min)
To close the output contact after opening because of both voltage and frequency
faults ,the values should return to the normal ranges and after t-3 delay, the
device switch on its output contact.
L-C : Locking Counter oto , 001 – 010 piece )
The number of the faults allowed within the period L-t). If the number of faults
exceeds this adjusted counter value then the device locks itself.
The user must press Reset button after the device locks itself.
If L-C is set to oto then this property is disable.
L-t : Locking Time 001 – 060 min. )
The device locks itself when the number of faults reaches the adjusted locking
number within this locking time. This way the system is protected and the user has
the chance to nvestigate the problem.
Installation Instruction :
- Read the user instructions and caution before installation
- Be sure that the panel you are installing in when power off.
- The device designed to be installed to the rail where the installation tap
into the panel,
- Do not under case open the front of device.
- You should open the Terminals at the back side of the device after you
must be sure that there is no power in the panel.
Connect the device as shown in the connection scheme.
- Be sure that the terminals are connected tightly to the device.
- Use a power switch between the network line and the device's supply.
Moreover you should connect the 1A rapid fuse before measurement
inputs for device protection.
- If you are having any problem you can contact to KAEL Electronics Co.
where you can reach address given below.
Atatürk mah.78 sok.No:10 Büyükalan Mevkii,Ulucak-Kemalpaşa-İZMİR
TÜRKİYE Tel: 90 - 232 – 8771484 pbx
o-F : Over Frequency Adjustment
It can be set between o-F) = [ u-F) + 0,4]............ 70 Hz.
If it is set to o-F = oFF then this protection is disabled.
u-F : nder Frequency Adjustment
it can be set between u-F) = 40 Hz ......................[ o-F) - 0,4].
If it is set to u-F = oFF then this protection is disabled.
qut : Quit
If Set button is pressed there then the device goes back the
measurement screen.
SET
SET
SET
+
-
Over Voltage
390 - 460 V)
Under Voltage
300 - 370 V)
SET Voltage Unbalanced
0,05 – 0,20 % 5 - % 20)
SET On Delay Time
For Voltages)
00,1 – 99,9 min)
SET On Delay Time
For Frequency )
00,1 – 99,9 min)
SET Returning Time
00,5 – 99,9 min)
SET Locking Counter
[oto, 001 – 010 piece)]
oto :Locking disables
SET Locking Time
001 – 060 min)
SET
SET
Exit
Accessing Parameter Menu :
Over Frequency
[ u-F) + 0,4] ≤.....≤ 70 Hz
oFF : Over Frequency
disabled.
Under Frequency
40 Hz ≤.....≤ [ o-F) – 0,4]
oFF : Under Frequency
disabled.
Factory Default values
are as shown figure
SET
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-

ATTANTION !!!
- The messages Err1 and Err2
on the screen means that
device is failure.
- Clean the device using dry
dust cloth after turned off device.
- Read and follow the instruction
on this manual and attached label.
TECHNICAL INFORMATION:
Rated Voltage Un) : 230Vac L1-N)
Operating Range : 0,8-1,1) x Un
Frequency : 50 / 60 Hz
Supply Power Consumption : < 4VA
Voltage Measurement
Phase-Phase) : 10 – 500 VAC
For L1-N 176V - 242V)
Voltage Measurement
Power Consumption : <1VA for one phase)
Measurement Sensitivity : %1±1 digit
Display : 3 Digit LED
Contact Current : Max. 5A / 240Vac
Device Protection Class : IP 20
Connector Protection Class : IP 00
Temperature : - 5 °C .... + 50 °C
Connection Type : To connection rail in electrical
panel
Dimension :
Connection Scheme
L3
N
1A1A 1A
L2
L1
16 18
15
Contact Current: 5A /240 VAC
Supply Voltage
L1-N :
Select: up direction) when pushing continuously ,it shows systems
frequency its screen. When release button , it is continue to display
voltage.
Reset:
If pushing Reset button while system has any error, device shows alarm
codes. If error case although disappeared , then device is not return to
normal , latch-function occurred and it makes locked device .
After checking error in system then restart device with pushing reset
button.
58mm
32mm
48mm
90mm
36mm
45mm
62mm
35mm