Transformers & Substations
HIS Inverter-Type AC Voltage Stabilizer
Most voltage stabilizers correct a bad waveform — tapping an autotransformer up or down, or switching triacs on and off — but they’re still working with whatever shape the incoming AC arrives in. The HIS series takes a different approach: incoming AC is first converted to a DC bus, then rebuilt from scratch into a clean 220V sine wave through PWM inversion, the same fundamental principle used in online double-conversion UPS systems. Because the output is regenerated rather than corrected, the HIS can absorb an unusually wide 90-310V input window without the step-lag or contact wear that tap-switching designs eventually show, and its front-panel AVR/Bypass switch gives it a maintenance-safe fallback path that older stabilizer topologies don’t have. Available across a 5-10KVA capacity range, it’s built for site conditions where incoming power is genuinely unpredictable, not just mildly unstable.
Key Features
The HIS series rebuilds — rather than merely corrects — the output waveform, giving it a wider stable operating envelope than tap-switching or SCR-based designs.
Inverter-Rebuilt Sine Wave
Incoming AC is converted to a DC bus and reconstructed through PWM inversion, rather than corrected in place — the same core principle behind double-conversion UPS output.
90-310V Input Window
The widest input tolerance in the AC Voltage Stabilizer line, built to absorb brownouts and surges that tap-switching designs can't ride through.
220V ±2% Output Precision
Regulation is held tight across the entire input range rather than degrading near the edges of the input window.
Front-Panel AVR / Bypass Switch
A physical AVR/Bypass changeover lets maintenance staff route power around the unit without an external switchboard.
Digital Monitoring Display
Front-panel LCD shows live input and output voltage with status indicators, so drift is visible before it becomes a fault.
5-10KVA Capacity Range
Three frame sizes (HIS-5000 / HIS-8000 / HIS-10000) cover small commercial through light-industrial loads in a compact wall/floor cabinet.
OEM & ODM Capabilities
Every HIS unit ships configured to the project, not pulled from generic stock — capacity, input window, and enclosure details are set at order time.
Configurable Capacity
Frame size and power rating scaled to your load profile beyond the standard 5-10KVA range.
Input Voltage Window Customization
Wider or narrower input tolerance windows available for regions with different grid stability profiles.
Enclosure & Branding Customization
Cabinet finish, labeling, and panel layout configurable for private-label and distributor branding.
Application-Specific Configuration
Output terminals and mounting orientation adapted to commercial, light-industrial, or site-power use cases.
Adjustable Protection Thresholds
Alarm and cutoff setpoints tuned to project requirements rather than fixed factory defaults.
Small-to-Large Batch Production
From single-unit prototypes to container-volume orders for distributors and EPC contractors.
Technical Specifications
Core electrical parameters are shared across the HIS series; capacity and frame size scale by model.
| Product Name | Inverter-Type AC Voltage Stabilizer |
|---|---|
| Technology | Inverter-based (DC bus + PWM), AVR/Bypass switching |
| Input Voltage | 90V ~ 310V |
| Output Voltage | 220V |
| Voltage Precision | 220V ±2% |
| Rated Input Frequency | 50Hz |
| Input Frequency Range | 40-60Hz |
| Capacity Range | 5-10KVA (Configurable beyond standard range) |
| Input Range | 90-310V |
|---|---|
| Precision | ±2% |
| Capacity | 5-10KVA |
| Control | AVR / Bypass |
| Model | Rated Capacity | Input Voltage | Output Voltage | Width | Height | Depth |
|---|---|---|---|---|---|---|
| HIS-5000 | 5KVA | 90-310V | 220V ±2% | 260mm | 360mm | 100mm |
| HIS-8000 | 8KVA | 90-310V | 220V ±2% | 360mm | 495mm | 100mm |
| HIS-10000 | 10KVA | 90-310V | 220V ±2% | 360mm | 495mm | 100mm |
Construction & Configuration
A wall-mountable steel cabinet houses the inverter stage, control board, and AVR/Bypass switching behind a front-facing digital display and terminal panel.
Steel Cabinet Enclosure
Powder-coated steel housing sized to frame — compact 260mm-wide cabinet for the 5KVA model, larger 360mm cabinet for the 8-10KVA models.
Inverter & Control Stage
DC bus conversion and PWM inversion electronics sit behind the front panel, driving the reconstructed 220V output.
Digital LCD Display
Front-panel screen reads live output and input voltage with a status/alarm indicator light.
AVR / Bypass Switch Panel
Dedicated changeover switches on the side panel let maintenance staff bypass the unit without external switchgear.
Input/Output Terminal Block
Rear/side-mounted terminal compartment for incoming and outgoing power connections.
Wall or Floor Mounting
Slim 100mm depth across all three models supports wall-mounted installation as well as floor placement.
Standards & Test Documentation
Documentation and compliance details are confirmed per order — reach out with your target market for the applicable certification set.
Inverter Voltage Regulator Design
Built around double-conversion inverter principles common to online UPS and precision voltage regulation equipment.
Configurable by Market
Compliance markings and test reports are arranged to match your destination market's requirements — confirm at order time.
Datasheets & Wiring Diagrams
Full parameter sheets and installation wiring diagrams available on request for procurement and engineering review.
Need a Voltage Stabilizer for Unstable Grid Conditions?
Tell us your incoming voltage range, load capacity, and site conditions — we'll configure a HIS unit or another series to match.