Transformers & Substations > AC Voltage Stabilizers
TNS6 Three-Phase Voltage Regulator with Configurable LCD Display
Most three-phase regulators ship with protection thresholds and display modes fixed at the factory — what you get is what you get. The TNS6 puts that control on the front panel instead. A multi-function LCD lets an operator switch on demand between output voltage and individual A, B, C phase input readings, and set voltage, current, response speed, and over-voltage/under-voltage thresholds directly from the touchscreen rather than requesting a custom build. Underneath that interface, the same regulation circuit, control circuit, and servo motor architecture used across KEXINGYU’s mechanical stabilizer line — sampling, comparing, and amplifying voltage deviation, then repositioning the carbon brush to adjust the coil turns ratio — holds output steady from 15KVA up to 120KVA.
Key Features
Configuration that lives on the front panel, not in a factory order form.
Per-Phase Voltage & Current Display
Switch on demand between output voltage and individual A, B, C phase input readings on the LCD, without needing external metering.
User-Configurable Protection Thresholds
Set voltage, current, response speed, and over-voltage/under-voltage precision directly from the front panel — no factory reconfiguration required.
±3% Regulation Precision
Servo-motor-driven regulation circuit holds output within ±3% of rated voltage across the full load range.
Phase-Loss Protection
Automatically cuts power to protect connected equipment if any one of the three input phases is lost.
Fast Correction Response
Responds within ≤1.5 seconds whenever external voltage swings more than 10% from rated value.
Overload & Short-Circuit Protection
Cuts output when load current exceeds the rated value, and cuts input power in the event of a load short circuit.
OEM & ODM Capabilities
Built-to-order three-phase regulation for distributors, system integrators, and B2B industrial partners.
Configurable Power Rating
Available from 15KVA to 120KVA — sized to your industrial load.
Custom Input Voltage Window
Standard 260-450V three-phase four-wire + ground input, configurable to match your site's grid conditions.
Enclosure & Branding Customization
Custom enclosure finish, nameplate, and packaging available for private-label and distributor programs.
Display & Threshold Presets
Factory-preset display modes and protection thresholds available for projects that prefer fixed configuration over on-site adjustment.
Flexible Protection Configuration
Protection thresholds adjustable to project specification beyond the standard on-panel settings.
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 TNS6 model range.
| Regulator Type | Three-Phase Automatic Voltage Regulator (Servo-motor Driven, Configurable LCD Interface) |
|---|---|
| Series | TNS6 (15-120KVA) |
| Rated Input Voltage | 260-450V |
| Rated Output Voltage | 380V, three-phase four-wire + ground |
| Regulation Precision | ±3% |
| Frequency | 50/60Hz |
| Applicable Load | Any load type, no additional waveform distortion |
| Installation Conditions | Indoor use, altitude ≤1500m, -15°C to 40°C |
| Metric | Value | Notes |
|---|---|---|
| Capacity Range | 15-120KVA | TNS6 platform |
| Response Speed | ≤1.5s | >10% voltage change |
| Protection Rating | IP20 | Indoor installation |
| Display | Configurable LCD | Per-phase voltage/current + adjustable thresholds |
| Model | Capacity | Rated Current | Product Dimensions (L×W×H mm) | Net Weight | Packing Dimensions (mm) | Packing Weight |
|---|---|---|---|---|---|---|
| TNS6-15KVA | 15KVA | 22.7A | 520×320×490 | 42KG | 540×380×535 | 49KG |
| TNS6-20KVA | 20KVA | 30.3A | 520×320×490 | 48KG | 540×380×535 | 55KG |
| TNS6-30KVA | 30KVA | 45.5A | 470×420×880 | 95KG | 515×470×1005 | 103KG |
| TNS6-40KVA | 40KVA | 45.5A | 470×420×880 | 106KG | 515×470×1005 | 116KG |
| TNS6-50KVA | 50KVA | 75.9A | 560×450×1200 | 138KG | 610×510×1360 | 148KG |
| TNS6-60KVA | 60KVA | 91.1A | 560×450×1200 | 146KG | 610×510×1360 | 160KG |
| TNS6-80KVA | 80KVA | 121A | 630×505×1350 | 166KG | 687×560×1500 | 186KG |
| TNS6-100KVA | 100KVA | 121A | 630×505×1350 | 187KG | 687×560×1500 | 209KG |
| TNS6-120KVA | 120KVA | 121A | 630×505×1350 | 208KG | 687×560×1500 | 226KG |
Construction & Configuration
Inside the TNS6 regulator: how the regulation circuit, servo motor, and configurable LCD interface work together to hold three-phase voltage steady.
Voltage Regulation Circuit
Samples, compares, and amplifies input voltage and load deviations to determine the correction needed.
Automatic Control Circuit
Processes the regulation circuit's signal and drives the servo motor to correct output voltage in real time.
Servo Motor & Carbon Brush
Repositions the carbon brush along the coil winding to adjust the turns ratio and restore rated output.
Multi-Function LCD Interface
Touchscreen panel for switching between output and per-phase A/B/C input readings, and setting voltage, current, speed, and protection thresholds.
Phase-Loss Detection Circuit
Continuously monitors all three input phases and triggers automatic cutoff if any phase is lost.
Protective Enclosure
Steel cabinet housing with ventilation and mounting for indoor installation.
Standards & Test Documentation
Performance, safety, and documentation support behind every TNS6 regulator.
Voltage Regulation Performance
Maintains ±3% output precision with ≤1.5-second response for external voltage swings greater than 10%, with voltage, current, speed, and precision settings adjustable from the front-panel LCD.
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 Three-Phase Regulation You Can Configure On-Site?
Share your load profile, voltage requirements, and preferred display/threshold settings — our engineering team will configure the right TNS6 regulator for your project, from single units to bulk OEM/ODM orders.