Transformers & Substations > AC Voltage Stabilizers
JJW Single-Phase Purification AC Voltage Regulator
The JJW series is a precision purifying AC regulated power supply built around sine-wave energy distribution technology — combining a sine energy distributor with a high-power filter in parallel to deliver clean, stable 220V output free of bidirectional waveform noise. With ±1% regulation precision, ≤0.1-second response speed, and reliable continuous-duty operation, it is designed for power-quality-sensitive environments such as computers, precision instruments, laboratory testing equipment, medical devices, communication and broadcast systems, and automatic control installations. Available across the JJW3 platform from 1KVA to 20KVA, with OEM/ODM configuration options for enclosure, output, and branding.





Key Features
Six core capabilities that keep the JJW series delivering clean, precisely regulated power for sensitive equipment.
Pure Sine Wave Purification
Sine-wave energy distribution technology filters bidirectional waveform noise and restores a clean power signal, protecting sensitive electronics from interference.
High-Precision Voltage Regulation
Holds output at 220V ±1% even during long, continuous operation — a tighter tolerance than standard AC voltage regulators.
Fast Response Speed
Corrects voltage deviations in ≤0.1 seconds, keeping lab, medical, and broadcast equipment protected from momentary fluctuations.
Over-Voltage Alarm & LED Display
Built-in over-voltage alarm and LED display give real-time visibility into voltage status and unit performance.
Silent, Efficient Operation
Efficient cooling design supports quiet, continuous-duty operation with strong overload capacity and long service life.
Strong Anti-Interference
Engineered for high reliability and resistance to electrical interference, suited for uninterrupted, long-term duty cycles.
OEM & ODM Capabilities
Built-to-order purification power supplies for distributors, system integrators, and B2B partners in power-quality-sensitive industries.
Configurable Power Rating
Available from 1KVA to 20KVA across the JJW3 platform — sized to match your load requirements.
Custom Input Voltage Window
Standard 175-255V input window, adjustable to match regional grid conditions on request.
Enclosure & Branding Customization
Custom enclosure finish, nameplate, and packaging available for private-label and distributor programs.
Application-Specific Configuration
Configured for demanding environments such as laboratory, medical, and broadcast equipment, matched to your application's power-quality requirements.
Flexible Protection Configuration
Under-voltage protection available as an optional add-on; other protection thresholds can be adjusted to project specification.
Small-Batch & Bulk Production
Configurable order quantities from small-batch trial runs to full container bulk production.
Technical Specifications
Full electrical, protection, and dimensional data across the complete JJW3 model range.
| Regulator Type | Precision Purifying AC Regulated Power Supply (Sine Energy Distribution Technology) |
|---|---|
| Series | JJW3 (1-20KVA) |
| Rated Input Voltage | 175-255V |
| Rated Output Voltage | 220V, single-phase |
| Regulation Precision | ±1% |
| Frequency | 50/60Hz |
| Applicable Load | Any load type |
| Installation Conditions | Indoor use, altitude ≤1000m, -15°C to 40°C |
| Metric | Value | Notes |
|---|---|---|
| Capacity Range | 1-20KVA | JJW3 platform |
| Response Speed | ≤0.1s | Fastest in the AC Voltage Stabilizers line |
| Protection Rating | IP20 | Indoor installation |
| Cooling Method | Self-cooling / Air-cooling | Model dependent |
| Model | Capacity | Rated Current | Product Dimensions (L×W×H mm) | Net Weight | Packing Dimensions (mm) | Packing Weight |
|---|---|---|---|---|---|---|
| JJW3-1000VA | 1KVA | 4.5A | 360×175×305 | ~10kg | 440×250×370 | ~11kg |
| JJW3-2000VA | 2KVA | 9A | 410×195×355 | ~15.5kg | 490×265×415 | ~17kg |
| JJW3-3000VA | 3KVA | 13.6A | 410×195×355 | ~18kg | 490×265×415 | ~19.5kg |
| JJW3-5000VA | 5KVA | 22.7A | 460×230×400 | ~25.5kg | 535×300×450 | ~27kg |
| JJW3-10KVA | 10KVA | 45.4A | 495×260×500 | ~39kg | 530×300×600 | ~45kg |
| JJW3-15KVA | 15KVA | 68.1A | 540×305×565 | ~58kg | 610×350×700 | ~64kg |
| JJW3-20KVA | 20KVA | 90.9A | 540×305×565 | ~61kg | 610×350×700 | ~69kg |
Construction & Configuration
Inside the JJW purification regulator: how sine energy distribution, filtering, and precision control work together to deliver clean, stable power.
Sine Energy Distributor
Reshapes the incoming AC waveform into a clean, controlled sine energy signal ahead of the output stage.
High-Power Filter Bank
Large parallel filter capacitors suppress bidirectional waveform noise and smooth the regulated output signal.
Precision Regulation Transformer
Copper-wound transformer core adjusts output voltage in real time to hold the ±1% regulation window.
Automatic Control Circuit Board
Continuously monitors input and output conditions and drives the sine energy distributor to maintain rated voltage.
LED Display & Alarm Panel
Front-panel LED display shows real-time voltage readings with a built-in over-voltage alarm indicator.
Ventilated Steel Enclosure
Self-cooling / air-cooling steel housing supports silent, continuous-duty operation with efficient heat dissipation.
Standards & Test Documentation
Performance, safety, and documentation support behind every JJW purification regulator.
Voltage Regulation Performance
Maintains ±1% output precision with a ≤0.1-second response speed, supporting continuous long-duration operation for power-quality-sensitive equipment.
Dielectric Withstand & Protection
Rated to withstand a 1500V power-frequency sine wave for 1 minute without puncture or flashover; IP20 enclosure protection for indoor installation.
OEM/ODM Technical Support
Full technical datasheets, dimensional drawings, and test reports available on request to support OEM/ODM integration and procurement evaluation.
Need Clean, Precision Power for Sensitive Equipment?
Share your load profile, power-quality requirements, and enclosure preferences — our engineering team will configure the right JJW regulator for your project, from single units to bulk OEM/ODM orders.