Drom SVC-E-1000W Servo Motor Digital Voltage Stabilizer (Single Phase)

The Drom SVC-E-1000W is a high-precision, single-phase servo-controlled voltage stabilizer engineered to deliver ultra-stable, clean power for sensitive and demanding electronic applications. By utilizing a servo motor to continuously and smoothly adjust a variable autotransformer, it achieves exceptional output voltage accuracy within ±1%, even when faced with extreme input voltage fluctuations of up to ±50%. This digital stabilizer is the optimal solution for protecting high-value equipment such as medical diagnostic devices, laboratory instrumentation, professional audio/video systems, and network servers where absolute voltage stability is non-negotiable.

Product Features

Laboratory-Grade Voltage Precision

Guarantee flawless operation of sensitive equipment with ±1% output voltage accuracy. The servo motor’s continuous, analog correction mechanism eliminates the step changes found in relay stabilizers, providing a perfectly stable and pure sine wave output essential for precision devices.

Extreme Wide-Range Voltage Correction

Maintain performance in the most unstable power environments. Capable of correcting input voltage variations up to ±50% from the nominal value (e.g., 110V-270V for a 220V system), this stabilizer ensures reliable operation during severe brownouts, surges, and ongoing grid instability.

Smooth, Analog Correction for Pure Sine Wave Output

Protect equipment from harmonic distortion and electrical noise. Unlike digital switching methods, the servo motor’s physical adjustment of the transformer winding ensures a clean, undistorted output waveform. This is critical for the performance and longevity of motors, audio amplifiers, and sensitive analog circuitry.

Advanced Digital Microprocessor Control

Benefit from intelligent, adaptive regulation. A high-speed digital microprocessor constantly monitors input/output parameters with precision. It governs the servo motor with sophisticated control algorithms for rapid response, stability optimization, and includes smart features like fault diagnostics and soft-start sequencing.

High-Torque Servo Motor for Reliability & Speed

Ensure durable and responsive performance. The robust, high-torque servo motor is engineered for millions of precise movements, providing fast and accurate voltage correction (typical response speeds of 30-50 volts per second) even under full 1000W load, ensuring long-term reliability.

Comprehensive Multi-Layer Protection Suite

Safeguard your investment with a full safety system. Integrated protections include over-voltage and under-voltage cut-off (with hysteresis), electronic overload protection, short-circuit interruption, thermal overload shutdown, and optional surge suppression, creating a secure environment for connected devices.

Interactive Digital Display & Monitoring

Maintain complete situational awareness. A clear digital LED or LCD display provides real-time readouts of input voltage, output voltage, load current, and system status (e.g., “Normal,” “Boost,” “Buck,” “Fault”). This allows for instant verification of power quality and stabilizer operation.

High Efficiency & Silent Operation

Reduce energy costs and noise pollution. Servo stabilizers are highly efficient (>95%), converting most input power to usable output with minimal heat loss. Operation is quiet, characterized only by a low transformer hum and the occasional soft whir of the servo motor, making it suitable for noise-sensitive environments like recording studios or labs.

Essential for Critical & Sensitive Applications

The definitive choice for scenarios where power quality cannot be compromised. Its unparalleled accuracy and clean output make it indispensable for medical imaging systems (CT/MRI support equipment), pharmaceutical research instruments, broadcast studio gear, high-end data acquisition systems, and premium home entertainment centers.

Product Specifications

Model: Drom SVC-E-1000W
Type: Single-Phase, Servo Motor Controlled, Digital Voltage Stabilizer
Power Rating: 1000 Watts / 1000 VA (1 kVA)
Technology: Servo Motor with Buck-Boost Transformer & Digital Control Circuitry

Input Voltage Range (Example for 220-240V variant):

• Correction Range: Typically ±50% (e.g., 110V – 270V for 220V nominal). Confirm with manufacturer.
• Operating Range: May be slightly wider than the full correction range.

Output Voltage: User-set or fixed at 220V/230V/240V with extreme stability.
Output Voltage Accuracy: ±1% (or better under normal conditions).
Correction Speed: 30-50 Volts per second (typical, ensuring smooth, fast adjustment).
Frequency: 50/60 Hz (Auto-sensing or selectable).

Key Internal Components:

• Variable Auto-Transformer: With precision-wound coil and carbon brush assembly.
• Buck-Boost Transformer: For isolated voltage correction.
• Control Board: Digital Microprocessor, High-precision Voltage Sensors, Servo Driver.
• Actuator: Industrial-Grade High-Torque Servo Motor.
• Display Unit: Digital LCD with backlight.

Protection Features:

• Adjustable Over/Under Voltage Cut-Off
• Electronic Overload & Short Circuit Protection
• Thermal Overheat Cut-Off with Auto-reset
• Time Delay on Startup (for compressor/motor safety)
• Surge Suppression (varistor-based, built-in)

Display: Real-time display of V-in, V-out, Load (A or %), and System Status.
Cooling: Natural convection or a low-speed fan for enhanced thermal management at full load.
Housing: Sturdy metal cabinet with ventilation slots.
Mounting: Floor-standing or substantial desktop unit.

Operating Temperature: 0°C to 40°C.
Efficiency: >95% at rated load.
Applications: Medical Laboratory Equipment, Diagnostic Device Support Systems, Professional Audio Mastering & Broadcast Studios, Research & Development Instruments, High-End Computing/Server Nodes, Precision Industrial Controls.