S-Series Automatic Voltage Stabilizer

Voltage Fluctuation
In the real world power line voltage occurs frequently especially in industrial area. Every electrical equipments and devices do have a working voltage limit/tolerance. Some equipment are build to tolerate ±10% of nominal voltage while others ±5% or less depending on sensitivity.

Effects
The correct operation of electrical and electronic equipment depends on the voltage accuracy and stability. In the event of long time over voltage, it will lead to damage of the equipment; while long time under voltage will cause malfunction and computation errors of the electrical & electronic equipment.

Solutions
Installing QPS Automatic Voltage Stabilizer (AVS) or power line conditioner will ensure the continuity and quality of production.
Input voltage variation from:
Single Phase: 230V ± 15%
Three Phase: 415V ± 15% + Neutral (3 phase 4 wire)

  • excellent output voltage accuracy of within ±1.5% set value.
  • regulation correction time approximately 0.05 ~ 0.07 sec per volt.
  • minimum maintenance due to its simplicity in design.
  • easy installation.
  • tailor made to special voltages and configuration for example, three phase voltage without neutral or for outdoor configurations.

QPS Servo – Motor Automatic Voltage Stabilizer provides a continuous monitoring of the output voltage (true RMS sensing) by means of an electronic Control Circuit that compares the instantaneous output voltage with the set value. When changes are detected due to fluctuation of supply voltage or sudden changes in load, an electrical signal will be transmitted to the servo – motor which is coupled onto the brush gear of the variable transformer, causes the brush gear to rotate until the appropriate voltage is restored. This method of stabilization does not create interference or harmonic to the supply system. QPS Three phase Automatic Volltage Stabilizers also designed to cater for unbalanced load. This made possible with its independent phase monitoring system.

QPS Automatic Volltage Stabilizers offer high quality performance at competitive prices. They solve voltage unstable problems and increase productivity.

Power Line Conditioner
QPS power line conditioner (PLC) is a AVS with the inclusion of a shielded isolation transformer.

Technical Data

Input voltage

  • single phase: 230V ± 15%
  • three phase: 415V ± 15%/10% + neutral

Output voltage (true rms)

  • single phase: 230VAC ± 1.5%
  • three phase: 415VAC ±1.5%

Rated kva

  • single phase: 1KVA ~ 30KVA
  • three phase: 3KVA ~ 1000KVA

Output waveform/distortion

  • sinewave/follow input

Response time

  • 0.05 ~ 0.07 sec/V frequency · 50 / 60Hz

Efficiency

  • > 95%

Operating temperature

  • 0°C ~ 45°C

Over current protection

  • MCB / MCCB

SPD surge protection

  • 1 phase standard
  • 3 phase (optional)

Phase loss sensing protection

  • phase sensing relay (optional)

Automatic output delay on system

  • time delay (optional)

Single Phase S-series 230VAC
Technical Specification

model cabinet power rated output (KVA) rated / output current (A) input voltage variation (%) output accuracy dimensions (mm) (+/-)
h         w         d		 weight (kg)
(+/-)
S1–2 1 1 4 230V ± 15% ± 1.5% 260      280      335 12
S2–2 1 2 9 230V ± 15% ± 1.5% 260      280      335 14
S3–2 1 3 13 230V ± 15% ± 1.5% 260      280      335 21
S4–2 1 4 17 230V ± 15% ± 1.5% 260      280      335 21.5
S5–2 2 5 22 230V ± 15% ± 1.5% 275      260      500 34
S7–2 2 7.5 33 230V ± 15% ± 1.5% 370      270      560 40
S10–2 2 10 43 230V ± 15% ± 1.5% 370      270     560 46.5
S15–2 2 15 65 230V ± 15% ± 1.5% 370      270     560 54
S20–2 3 20 87 230V ± 15% ± 1.5% 640      400      375 64
S25–2 3 25 109 230V ± 15% ± 1.5% 640      400      375 75
S30–2 3 30 130 230V ± 15% ± 1.5% 640      400      375 83

Remarks: The dimensions indicated above is applicable for Automatic Voltage Stabilizer only. Please consult us if any further information is required.

Three Phase S-series 415VAC
Technical Specification

model cabinet power rated output (KVA) rated / output current (A) input voltage variation (%) output accuracy dimensions (mm) (+/-)
h         w         d		 weight (kg)
(+/-)
T3–4 1 3 4 415V ± 15% ± 1.5% 665      320      585 45
T6–4 1 6 8 415V ± 15% ± 1.5% 665      320      585 50
T10–4 1 10 14 415V ± 15% ± 1.5% 665      320      585 75
T15–4 1 15 21 415V ± 15% ± 1.5% 665      320      585 78
T20–4 2 20 28 415V ± 15% ± 1.5% 1110      570      500 159
T30–4 2 30 42 415V ± 15% ± 1.5% 1110      570      500 165
T40–4 2 40 56 415V ± 15% ± 1.5% 1110      570      500 180
T45–4 2 45 63 415V ± 15% ± 1.5% 1110      570      500 182
T50–4 2 50 70 415V ± 15% ± 1.5% 1110      570      500 190
T60–4 2 60 83 415V ± 15% ± 1.5% 1110      570      500 211
T75–4 2 75 104 415V ± 15% ± 1.5% 1110      570      500 225
T100–4 2 100 139 415V ± 12% ± 1.5% 1275      660      580 300
T125–4 2 125 174 415V ± 15% ± 1.5% 1275      660      580 345
T150–4 2 150 209 415V ± 15% ± 1.5% 1490      660      580 345
T200–4 2 200 278 415V ± 15% ± 1.5% 1490      660      580 380
T250–4 3 250 348 415V ± 15% ± 1.5% 1740      1400      800 550
T300–4 3 300 417 415V ± 15% ± 1.5% 1740      1400      800 732
T400–4 3 400 556 415V ± 15% ± 1.5% 1740      1400      800 986
T500–4 3 500 695 415V ± 15% ± 1.5% 1740      1400      800 1100
T600–4 3 600 835 415V ± 15% ± 1.5% 1955      1600      1400 1200
T700–4 3 700 974 415V ± 15% ± 1.5% 1955      1600      1400 1700
T1000–4 3 1000 1391 415V ± 15% ± 1.5% 1955      1600      1400 2000

Remarks: The dimensions indicated above is applicable for Automatic Voltage Stabilizer only. Please consult us if any further information is required.