Three-phase voltage stabilizer IMP-R

thyristorsstaticautomatic

Product Overview
IMP Voltage Stabilizer is an AC voltage regulation and protection device that provides continuous, safe and stable voltage to sensitive industrial machines and equipment. It corrects unstable network voltage and maintains the optimal voltage value required by electronic loads, ensuring reliable operation of critical industrial systems.

Key Features

• Automatic AC voltage stabilizer
• 1kVA-3200 kVAPower Range , 3-Phase + Neutral
• Full power performance at nominal input voltage (IMP-R Series)
• Maintenance-free thyristor technology
• Low-voltage correction up to 60%
• High-voltage correction up to 45%
• Response time: 20 ms
• Correction time: 100 ms – 200 ms
• 100% unbalanced voltage and load capacity
• Continuous protection against voltage fluctuations
• Independent voltage control on each phase
• Efficiency > 97%
• Standard operator panel with 4x20 LCD display
• Electronic overload and over-temperature protection
• Low-voltage / high-voltage protection
• Industrial-grade design
• TS EN ISO 9001:2015 certified

How it works
IMP stabilizers inject corrective voltage into the load supply via a series-connected transformer installed between the network and the load. High-speed measurement circuits detect drops and fluctuations; a microprocessor-based control board calculates the required correction and applies voltage injection through thyristor switches for fast, precise regulation without moving parts.

Design & Operation Notes
IMP units are manufactured to order for various input voltages and wiring configurations (standard 3-Phase + Neutral; 3-phase delta on request). Thyristor switches provide rapid, durable regulation without introducing harmonic distortion. Optional internal automatic bypass and maintenance bypass switches are available for uninterrupted operation or servicing.

Options & Accessories

• Custom input voltage ranges and values
• Custom output voltage values and tolerances (±1%, ±2%, ±3%, ±5%)
• Adjustable output voltage via LCD panel (max ±15%)
• 60 Hz frequency option
• Output protection MCCB (optional)
• Automatic uninterruptible bypass (optional)
• Isolation transformer / autotransformer for input/output (optional)
• Special enclosures for indoor/outdoor use and higher IP ratings (IP44 / IP54 / IP65)
• EMC input/output filters (optional)
• Surge arrester / high-voltage protection (Class I/II/III as specified)
• Remote monitoring and management unit (browser-based, LAN)
• MODBUS RTU monitoring (RS485)
• Dry contacts for ON-OFF and automatic bypass modes
• Custom terminal layouts and special accessories on demand

DOCUMENTS
IMP-R English catalog (product catalog available as PDF on vendor site)

Technical specifications

• Power (kVA):1kVA- 3200 kVA Power Range
• Technology: Thyristor technology, high-speed voltage regulation, maintenance-free design
• Thyristor configuration: 6, 8, 10 T selectable to determine output voltage tolerance
• Rated input voltage: 400 VAC, 3-Phase + Neutral + Ground (other voltages optional)
• Input voltage range: configurable at order (standard XS/S/M/L models up to -60% / +40% by order)
• Input frequency: 50 Hz ±5% (60 Hz optional)
• Rated output voltage: 400 VAC, 3-Phase + Neutral + Ground (other voltages optional)
• Output voltage tolerance: ±1% to ±5% (optional)
• Overload capacity: 125% for 1 minute, 150% for 10 seconds, >151% for 0.2 seconds (power cut)
• Response time (measuring): 20 ms
• Correction time: 100 ms - 200 ms
• Efficiency: >97% (typical)
• Operator panel (standard): 4x20 LCD display with mimic diagram — shows input/output voltages, load %, frequency, status, fault info, parameter settings
• Touchscreen option: 7-inch color touchscreen (optional)
• Remote management: browser-based via Ethernet (optional); MODBUS RTU via RS485 (optional)
• Protection functions: electronic low/high-voltage protection, input circuit breaker (output CB optional), electronic overload protection, electronic over-temperature protection (fan cooling at 50°C; power cut at 80°C)
• Surge arrester: Class I or Class II optional
• Operating temperature: -10 °C to +40 °C
• Altitude: up to 1,500 m
• Humidity: up to 90% non-condensing
• Acoustic noise: < 55 dB (at 1 m, doors closed)
• Cabinet / protection: Free-standing modular cabinet, IP21 indoor (IP54 and higher outdoor types optional)
• Paint / color: Epoxy-polyester powder coating - RAL 7035
• Cooling: Forced-air cooling with thermostat-controlled fan
• Operator panel languages: three language options available on order
• Monitorable parameters: input voltages, output voltages, load %, frequency, date-time, status, fault/error codes
• Changeable parameters: output voltage set value (limited), date-time