Adjustable AC constant current power supply

Introduction to AC Constant Current Source AC constant current source, also known as current generator, high current generator, current source, or steady current source, is a wideband, high-precision, low harmonic, and distortion AC steady current source. Adopting IGBT high-frequency switching transformation and waveform closed-loop control ..

Introduction to Communication Constant Current Source

AC constant current source, also known as current generator, high current generator, current source, or steady current source, is a wideband, high-precision, low harmonic, and distortion AC steady current source. Adopting IGBT high-frequency switching transformation and waveform closed-loop control technology, the output waveform quality is high, the response speed is fast, and the dynamic performance is good; The independently patented thick film control circuit greatly improves the power output performance through multi loop control; DSP digital control, high tracking accuracy, comprehensively improves power quality. It has the advantages of fast response speed, high constant current accuracy, long-term stable operation, and is suitable for various types of loads (resistive, inductive, capacitive). This constant current source is an AC power supply that can maintain a constant output current even when there are fluctuations in the external power grid or changes in the impedance characteristics of electricity consumption. This power supply is mainly used in products and places for specific current thermal effect applications and testing. Experiments are required for circuit breakers, fuses, thermal relays, magnetic starters, coils, etc.

Application of Communication Constant Current Source Products

Mainly used for detecting circuit breakers, molded case circuit breakers, small circuit breaker relays, switches, AC contactors, mechanical switches, electronic switches, current transformers, and production occasions that require setting rated current, operating current, short-circuit protection current, etc.

Characteristics of Communication Constant Current Source

1： The AC constant current source is specially designed and manufactured for low-voltage electrical users. Its output current is constant and the output waveform is a pure sine wave, which can be used as an overcurrent detection experimental instrument.

2： This communication constant current source can carry resistive, inductive, and capacitive loads, meeting the requirements of low-voltage electrical appliances for testing power supply.

3： Adopting advanced dual loop feedback control technology, mature SPWM modulation technology, and IGBT drive technology, the response is fast and the output is stable;

4： Comprehensive self-protection function: real-time detection of key components such as IGBT and transformer (such as short circuit/overcurrent/overheating protection), real-time detection of power input and output ports (such as overvoltage/undervoltage/phase loss protection)

5： Rich remote control interfaces: Customers can choose multiple remote communication/control methods such as RS232, RS485, switch quantity, analog signal, etc. to achieve remote control of the power supply.

6： Frequency adjustable range: 40-500HZ (optional), fixed output: 50HZ, 60HZ (fixed output frequency can be designed according to user needs within a wider range).

Exchange technical parameters of constant current source

Power input: single-phase AC220V ± 10% 50/60Hz ± 5% (total capacity within 10kVA)

Three phase AC380V ± 10% 50/60Hz ± 5% (total capacity above 10kVA)

◆ Power input: single-phase or three-phase (customizable according to user requirements)

◆ Output waveform: sine wave output

◆ Current level: 200A, 300A, 500A, 1000A, 1500A, 2000A, 3000A, 5000A (any current value can be customized according to user requirements);

Voltage level: 5 V、10V、20V、30V、50V、100V、200V、300V、400V、500V、600V、800V、1000V（ Customizable voltage value according to user requirements);

Output frequency: fixed frequency 50HZ, 60HZ, frequency modulation 45-65HZ, output special frequency 400HZ, 500HZ, 1000HZ (can be set according to requirements);

Output indicator: LED digital display meter; (True Significant Value);

◆ Usage time: Long term continuous work. Environment: 0-35 ℃, humidity ≤ 85%

Current distortion: ≤ 3% (resistive load)

Frequency stability: Fixed frequency: ≤± 0.1%, frequency modulation: ≤± 0.5%

Source power effect: ≤ 1%

◆ Load adjustment rate: ≤ 1%