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MODELS:
SE-1C08, SE-1C08HV, SE-1L08, SE-1L08HV, SE-1C40, SE-1C60, SE-1C80
U/F -
Under Frequency Protection.
It protects the generator from over-excitation current due to lower engine revs.
To adjusting the “U/F” trimmer proceed as follows:
The AVR comes with pre-configured
Under Frequency
protection.
If re-adjusting is to be needed, proceed as follows:
1.
Turn clockwise the
“
U/F
”
trimmer all the way
(25 turns).
2.
Start the engine and wait until voltage is built up.
3.
Reduce the fuel from the Governor until the periods
are
10Hz
less than the normal. (e.g. If the engine is running on
50Hz
,
then the periods are to be reduced to
40Hz
and if the engine is running
on
60Hz
, then the periods are to be reduced to
50Hz.
4.
Turn anti-clockwise the
“
U/F
”
trimmer until the generator voltage
drops (n
ote that the generator voltage will also starts to drop).
5.
Restore generator to the normal state
(50 or 60 Hz).
STAB
- Stability.
It eliminates the voltage fluctuations.
To adjusting the STAB trimmer, proceed as follows:
1.
Turn anti-clockwise the Stab trimmer all the way (1 turn).
2.
Turn clockwise the STAB trimmer and set it just after the voltage
fluctuation stops.
* Setting the trimmer at a far clockwise position will decrease the
generator sensitivity. This may result to extensive voltage recovery time
due to the vast self-induction loads
.
VOLT -
Voltage.
Voltage adjustment. It co-operates with the external pot.
To adjusting the VOLT trimmer, proceed as follows:
Since the engine has the right-periods (cycles), then the remote knob is adjusted to the middle position.
Then the
VOLT
trimmer (which is located in the main unit) is adjusted until the right voltage is reached.
All the above adjustments i.e.
U/S, STAB, VOLT
, must be done without any load in the generator,
the switch
(ACB)
must be in
OFF
position.
P/F
- Power Factor
. This adjustment is done when the generator is already in parallel with another or others.
To adjusting the P/F trimmer proceed as follows:
We start by placing the trimmer to the middle position.
If turning it anti-clockwise, the amperes of generator build-up in relation to the other generator.
If the trimmer is moved in a clockwise manner, the amperes are reduced in relation to the other or others generators
.
GREEN LED CABLE CHECKER.
The green led will help to achieve the right installation.
The green led (which is located behind the
VOLT
trimmer), will help to achieve the right installation.
It will light
only*
if all the below are ok:
1.
The circuit of this led will activated, if only if a current transformer is installed.
2.
The generator is 20% at least under load.
3.
The identity of the phases is ok.
4.
The suggestion of the phases is ok.
5.
The polarity of current transformer is ok.
*If there is more than one wrong cable connection at the same time, there is a chance that the green led will be lighten.
ONE TURN TRIMMER
THE CLOCKWISE
TURNING OF STAB
ADDING STABILITY BUT
THE GEN HAS SLOWER
VOLTAGE RECOVERY.
THE ANTI-CLOCKWISE
TURNING OF STAB
DECREASE STABILITY BUT
THE GEN HAS FASTER
VOLTAGE RECOVERY.
(
PRE-ADJUSTED
TO THE POSITION YOU SEE HERE)
STABILITY
25 TURN TRIMMER (IT DOES NOT STOP)
UNDER FREQ PROTECTION
(DEFAULT
(PRE-ADJUSTED)
VALUE: 40 Hz
THE CLOCKWISE TURNING
OF UNDER FREQ TRIMMER
ACTIVATES THIS FEATURE
AT LOWER Hz.
(~22Hz THE LOWEST)
THE ANTI-CLOCKWISE
TURNING OF UNDER FREQ
TRIMMER ACTIVATES THIS
FEATURE AT HIGHER Hz.
(~74Hz THE HIGHEST)
