Rectifier Power Supply for Anodizing Lines

Product Specifications

Technical details and manufacturing context for Rectifier Power Supply

Definition

The rectifier power supply is a component used in fabricated metal product manufacturing, specifically within an aluminum profile anodizing production line. It converts alternating current (AC) from the mains into precisely controlled direct current (DC) required for the anodizing electrolytic bath. This DC power is essential for forming the protective oxide layer on aluminum surfaces. The unit typically operates with a three-phase input voltage of 380–480 V AC (50/60 Hz) and provides a continuously adjustable output voltage of 0–24 V DC, with a continuous output current rating of 1000–6000 A. Efficiency at full load ranges from 85% to 92%, and voltage regulation is maintained within ±1% for line and load variations. The ripple factor (RMS of AC component) is ≤5%. The operating temperature range is 0–40°C, with derating above 40°C. Cooling is water-cooled, requiring external cooling water. The protection class is IP54–IP65 (per IEC 60529), and the control interface supports RS485/Profibus for remote monitoring and control. Weight varies from 500 to 2000 kg depending on current rating, and typical dimensions for a 3000 A unit are 1200×800×1800 mm (W×D×H). Key materials include silicon steel for the transformer core, copper for windings, semiconductor chips (e.g., silicon diodes, thyristors), aluminum for heat sinks, and insulating materials. The working principle involves a transformer to adjust voltage, semiconductor rectifier circuits to convert AC to pulsating DC, filtering circuits to smooth the output, and control systems to regulate final DC voltage and current. This product is a directory reference; model-specific values and standards must be verified with the legal manufacturer or supplier.

Working Principle

The rectifier power supply receives standard AC input from the mains. A transformer adjusts the voltage to a suitable level. Semiconductor-based rectifier circuits, such as diodes or thyristors, convert the AC to pulsating DC. Filtering circuits smooth the output to reduce ripple. Sophisticated control systems regulate the final DC voltage and current to meet the specific requirements of the anodizing process, ensuring stable operation.

Common Materials

Silicon Steel (for transformer core), Copper (for windings), Semiconductor Chips (e.g., Silicon Diodes, Thyristors), Aluminum (for heat sinks), Insulating Materials

Technical Parameters

Parameter	Typical range	Notes & selection driver
Input Voltage	380–480 V AC	Three-phase, 50/60 HzIEC 60038
Output Voltage	0–24 V DC	Continuously adjustable
Output Current	1000–6000 A	Continuous rating
Efficiency	85–92 %	At full load
Voltage Regulation	±1 %	Line and load regulation
Ripple Factor	≤5 %	RMS of AC component
Operating Temperature	0–40 °C	Ambient, derate above 40°C
Cooling Method	Water-cooled	Requires external cooling water
Protection Class	IP54–IP65	Dust and water protectedIEC 60529
Control Interface	RS485/Profibus	Remote monitoring and control
Weight	500–2000 kg	Depends on current rating
Dimensions (W×D×H)	1200×800×1800 mm	Typical for 3000A unit

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Main Transformer
Steps down or adjusts the incoming AC voltage to the required level for rectification.

Material: Silicon Steel, Copper
Rectifier Stack/Bridge
Converts the adjusted AC voltage into pulsating DC using an array of semiconductor diodes or thyristors.

Material: Silicon Semiconductor Chips
Filtering Circuit (Choke & Capacitors)
Smooths the pulsating DC output to reduce ripple, providing a stable DC current.

Material: Ferrite Core/Steel Laminations (for choke), Aluminum/Plastic (for capacitor casing)
Control Panel & PCB
Houses the control logic, user interface, and protection circuits to set and regulate output parameters (voltage, current).

Material: FR4 (PCB substrate), Electronic Components
Heat Sink & Cooling System
Dissipates heat generated by the rectifier stack and other components to maintain operational temperature.

Material: Aluminum Alloy

Manufacturers of Rectifier Power Supply

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Frequently Asked Questions

What is the input voltage range for this rectifier power supply?

The input voltage is three-phase, 380–480 V AC, at 50/60 Hz, per IEC 60038. Verify the exact range for your model with the manufacturer.

What output voltage and current can it provide?

The output voltage is continuously adjustable from 0 to 24 V DC, and the output current is rated from 1000 to 6000 A continuous. Confirm the specific ratings for your application.

What is the efficiency and voltage regulation?

Efficiency at full load is 85–92%. Voltage regulation is ±1% for line and load variations. These values are typical and should be confirmed for the specific unit.

What cooling method is required?

The unit is water-cooled and requires external cooling water. Ensure the cooling system meets the manufacturer's specifications for flow rate and temperature.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification

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pressure:	Atmospheric (non-pressurized enclosure)
other spec:	Input voltage: 380-480V AC ±10%, 3-phase; Output ripple: <3% RMS; Efficiency: >92% at full load; Cooling: Forced air or liquid cooling depending on power rating
temperature:	0°C to 40°C (operating ambient), -20°C to 70°C (storage)

Rectifier Power Supply

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