![background image](/i/rucelf/139380/rucelf-sdv-3-45000/h/rucelf-sdv-3-45000-035.png)
35
eng
7. Principle of operation and product design.
Stabilizers RUCELF are the electromechanical type of the stabilizers,
which provide stepless control of the output voltage, with high precision of it.
Regulation is running with servo drive, which automatically traces changings of
input voltage. Output voltage is measuring and comparing with standard voltage
of control unit.
In case of deviation, servo drive starts to work, adjusting the boosting
voltage to the reference value of output voltage.
The value of boosting voltage either increases, or is subtracted from the
corrupted line voltage. Digital board with microprocessor management is set on
the stabilizers RUCELF. The digital board makes the logical control of protection
on the down and up limit. The temperature sensor protects the stabilizer from
the overheating and disconnects the output load during abnormal operation
temperature.
Single-phase stabilizer
Fig. 4
Activation of the stabilizer protection
high voltage
Low voltage
Input voltage, V
Output
voltage, V
Disconnection
delay, sec
Input voltage, V
Output
voltage, V
Disconnection
delay, sec
278
238
3О
117
19О
3О
282
241
18
112
182
18
286
244
9
11О
178
9
288
247
4
1О8
175
4
293
25О
2
1О6
172
2
296
253
1
1О4
169
1
3ОО
256
О,2
1ОО
163
О,6
98
16О
О,2