VSE1xxWM – SINGLE-PHASE ELECTROMECHANICAL VOLTAGE STABILIZERS Wall Mounted – PV compatible from 5kVA to 10kVA
The VSE-WM project was born from a widespread modern need: the prevalence of domestic photovoltaic (PV) systems makes the power grid highly unstable and subject to production fluctuations. This creates a necessity to regulate voltage quickly and effectively, without the limitations imposed by energy feed-in to the grid, using a compact system capable of wall-mounted installation.
VSE stabilizers deliver constant voltage by correcting voltage drops and surges occurring on the grid or within the internal structure of the electrical system. Our voltage regulators operate automatically to adjust the voltage without any user intervention. Once the regulator is switched on, the mains voltage is continuously measured, and the necessary step-up/step-down operations are performed automatically, providing the system with the constant voltage required for correct operation. The servo-regulators consist of a variac, a servo-motor driving the variac, an electronic multimeter control unit managing the motor, and a booster transformer. The high torque of the motor allows for rapid correction thanks to a control system that responds promptly to voltage changes. Once regulation is complete, the servo-motor is de-energized by an electronic braking circuit. Electrical noise and transients do not interfere with the regulation. You can safely power any area requiring a stable electrical supply without issues.
The new VSE1-WM stabilizers offer features such as:
- Free circulation of current produced by the PV system back to the grid.
- User protection against dangerous or harmful voltages.
- User and device protection against excessive currents.
- Pure sine wave RMS voltage regulation.
- Prolonged overload protection and instantaneous protection.
- High-precision AC voltage balancing.
- Smooth operation on all loads from 0% to 100%.
- Manual bypass mode without regulation.
- Logging of input and output voltage limits.
- Static, step-less output voltage, dynamically corrected.
- When protections are triggered, it records the number of interventions and the reason for each.
- Standard regulation is ± 1.5% (227.7V – 232.3V), stable when the input voltage is within range.
SINGLE-PHASE ELECTROMECHANICAL STABILIZERS – OPERATING PRINCIPLE
| MODEL VSExxxWM | 105 | 107 | 110 |
| Power Rating (kVA) | 5 | 7.5 | 10 |
| INPUT | |||
| Input Voltage | 230Vac 1ph + N [other operating voltages available on request] | ||
| Voltage Range | 172Vac ~ 264Vac (-25% / +15%) [other ranges available on request] | ||
| Input Frequency | 47 : 64 Hz | ||
| OUTPUT | |||
| Output Voltage | 230Vac (adjustable 200:250V) | ||
| Output Accuracy | ± 1.5% | ||
| Output Current (A) | 22 | 32 | 43 |
| Power Factor | 1 (maximum output current available even at minimum allowed mains voltage) | ||
| Overload Capacity | 200% load 10” – 101:150% load 2’ | ||
| Output Frequency | 47 : 64 Hz (same as input frequency) | ||
| Response Speed | < 1.5/1000 sec | ||
| Correction Speed | 80V / sec | ||
| Efficiency | min. 95% | ||
| Display | digital instrument with input/output voltage reading and status signals (mains present) | ||
| PROTECTIONS | |||
| Input Protection | Circuit Breaker (MCB) | ||
| Output Protections | Low-high voltage via output contactor | ||
| Bypass | Manual bypass included | ||
| Output MCB | Circuit Breaker | ||
| OTHER DATA | |||
| Cooling | Forced ventilation with adjustable thermostat | ||
| Protection Class | IP20 (other protection ratings available on request) | ||
| Max. Ambient Temp. | -10° C ~ +40° C | ||
| Altitude | Up to 1000 m a.s.l. without power derating | ||
| Relative Humidity | 96% (non-condensing) | ||
| Acoustic Pressure | < 36dB | ||
| Color | RAL7035 | ||
| Dimensions WxDxH (mm) | 403x320x550 (without handle) | 453x360x600 (without handle) | |
| Weight (kg) | 35 | 45 | 50 |
