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TRIAC POWER REGULATOR

  • TRIAC POWER REGULATOR
ChatGPT Image Nov 8, 2025, 01_01_50 PM

    • TRIAC POWER REGULATOR

    Product Overview

    The Denki Seigyo DTR Series solid state voltage regulators are compact, high-performance thyristor (Triac/SCR) regulators designed for AC load control in industrial automation and power management systems.
    Available in single-phase (DTR1 Series) and three-phase (DTR3 Series) variants, these regulators offer precise phase-angle control, proportional voltage regulation, and isolated control signal interfaces.
    Each model is engineered for stable operation, long life, and smooth analog signal response (0–10V / 4–20mA control) in resistive or inductive load applications.

    Key Features

    • Single and three-phase Triac-based voltage regulation

    • Phase-angle and zero-cross control options

    • High current capacity (up to 100A)

    • Analog control input (0–10V / 4–20mA)

    • Isolated control and power sections for safety

    • Built-in LED indicators for operation and fault display

    • Fan-cooled and heat sink integrated options

    • Compact, panel-mount design with screw terminals

    • CE and RoHS compliant industrial-grade build

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    TRIAC POWER REGULATOR
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    Technical Specifications (General)

    Parameter Specification
    Control Signal Input 0–10VDC / 4–20mA (Isolated)
    Control Mode Phase-angle control / Burst-fire control
    Load Voltage Range 85–265VAC (Single Phase) / 320–480VAC (Three Phase)
    Output Current Range 25A / 40A / 60A / 80A / 100A
    Frequency Range 47–63Hz
    Triggering Device Triac / SCR pair
    Cooling Method Natural convection or forced air cooling
    Protection Features Overheat, short-circuit, input surge protection
    Indication LED for Power, Fault, and Signal
    Mounting Type Panel Mount with M4 screw holes
    Operating Temperature −20°C to +80°C
    Storage Temperature −30°C to +100°C
    Insulation Resistance ≥100MΩ (500VDC)
    Dielectric Strength 2500VAC between input/output for 1 min
    Compliance CE, RoHS

     

     

    Model Phase Type Control Type Input Control Signal Rated Output Current Load Voltage Communication / Interface Features
    DTR1-060-VI Single Phase Triac Regulator 0–10VDC / 4–20mA 60A 220VAC Analog Compact, single-phase phase-angle control
    DTR1-060-VI Single Phase Triac Regulator 0–10VDC / 4–20mA 60A 220VAC Analog High-capacity version with extended heat sink
    DTR1-100-VI Single Phase Triac Regulator 0–10VDC / 4–20mA 100A 220VAC Analog Heavy-duty load control for heaters/motors
    DTR3-080-VI-C Three Phase Triac Regulator 0–10VDC / 4–20mA 80A 380VAC RS-485 (MODBUS RTU) Digital communication and multi-phase sync control
    DTR3-100-VI-C Three Phase Triac Regulator 0–10VDC / 4–20mA 10A 380VAC RS-485 (MODBUS RTU) Analog + communication control (digital setpoint input)
    DTR3-200-VI-C Three Phase Triac Regulator 0–10VDC / 4–20mA 200A 380VAC RS-485 / MODBUS RTU High-capacity intelligent triac regulator with digital feedback

    Applications

    • Electric heating control (Ovens, Furnaces, Heaters)

    • Industrial automation systems

    • Power management and voltage regulation

    • Motor speed control (AC motors, fans)

    • Lighting dimming and energy-saving control

    • Process temperature and load balancing systems

     

    Performance & Functional Characteristics

    • Switching Frequency: Typically full‑wave line frequency (50/60 Hz) with triac gating every half‐cycle. The regulator adjusts conduction angle to regulate voltage.

    • Minimum Load Requirement: Some minimum current (e.g., >5 A) may be needed for stable operation (especially inductive loads).

    • Response Time: Rapid change in output when control input changes (milliseconds range) enabling tight process control.

    • Efficiency & Heat Dissipation: Minimal internal losses but triac will dissipate heat; good heatsinking required to maintain junction temperature <125 °C.

    • EMI Considerations: Because phase‑angle switching creates harmonics, noise suppression (e.g., R‑C snubber, mains filter) recommended.

    • Control Input Accuracy: High linearity between control signal (0–10 V) and output voltage (e.g., 0–100% of load power).

    • Indicator / Status: Possibly built‑in LED indicators for power ON, fault, current limit (verify actual features).

    Certifications & Compliance

    • CE marked (for European versions) – conformity with EMC and Low Voltage Directive.

    • RoHS compliant (lead‐free components) (check variant).

    • Designed in accordance with IEC 60947 series for power switching devices (verify).

    • For use within industrial control panels conforming to local safety standards (e.g., IEC or IS in India).

    Installation & Maintenance Notes

    • Mount the regulator vertically on flat metal surface; ensure proper air clearance to allow convection.

    • Provide an adequately dimensioned heatsink or fan if ambient >40 °C or if current continuously near maximum.

    • Use correct size cables and terminations for the 60 A rating; ensure adequate earthing.

    • Avoid mounting near high vibration, corrosive fumes, or extreme ambient conditions unless variant rated for that.

    • Inspect periodically: check terminal torque, cooling path free of dust, and verify indicator LEDs.

    • Have spare fuses or over‑current protection devices appropriate for the load and regulator rating.

    Typical Applications

    • Thermal process control: heaters in ovens, furnaces, laminators.

    • Motor speed or power modulation (when used with resistive or lightly inductive loads).

    • Lighting control in industrial/high‑bay systems (with compatible load).

    • Any application demanding smooth AC power regulation and minimal flicker or step change in output.