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SP-300 Series

Single-phase Programmable AC Power Supply

It is a switching mode single-channel output high-precision programmable AC power source, which adopts high speed DSP+CPLD control, high frequency PWM power technology and active PFC design to realize AC/DC stable output. It is featured with high power density, high reliability and high precision, meanwhile it possesses operation interface of touch screen and keys manually. It is able to analog output normal or abnormal input for electrical device to meet test requirements. Meet the verification of power electronics, motors, lighting, avionics, automotive electronics research and development quality assurance laboratory, as well as the production test verification of factory production line.

Product Features

Large color touch screen with intuitive interface, easy to operate

Turn on, turn off phase angle control, 0-359.9°

Features AC, DC, AC+DC output modes, AC+DC output mode for voltage DC offset simulation

Output frequency: 15-1200Hz, programmable slew rate setting for changing voltage and frequency

Support LIST/PULSE/STEP modes to simulate all kinds of power line disturbance conditions

High output current crest factor which is ideal for inrush current testing

Sweep function for efficiency testing and shows voltage and frequency value at max power

Multiple current range to make current measurement more accurate

Front panel USB interface supports CSV format to import waveform

OCP/OVP/OPP/OTP/reverse current protection/short circuit protection

Support three phase power output, can simulate three phase unbalanced output

Support external analog input control and TTL electrical level output

Two versions to meet the cost performance and different applications

Programmable voltage and current limit, support CC mode

Support up to 2 units in series, 4 units in parallel

Triac Dimmer function for dimming/governor simulation function

Built-in power meter function, can real-time measure 15 electrical parameters . This series AC source can measure up to 40 orders of the voltage or current harmonics

Function & Advantage

Graphical User Interface

The large color touch screen provides simple and fast operation for customers, real-time update of display output data and power status, and graphical display makes it more intuitive.

Settable ON/OFF Phase Angle of Output Waveform

This series of AC power supply can set the ON phase and OFF phase of sinusoidal output waveform, suitable for the output test of switching power supply. Set the ON angle to 90 degrees for surge current testing, the power supply will show the measured value of surge current. Users can set when start to measure the surge current and the duration of the measurement.

Slew Rate Setting For Voltage and Frequency

This series AC power supply let users set the slew rate of voltage and frequency, in such application in order to reduce the inrush current during motor or compressor startup.

High Output Crest Factor

This series AC power supply deliver up to 5~6 times of peak current from its RMS current, so it is suitable for testing switching power supplies and motor with high inrush current issue.

Power Sweep Function

This series AC power supply can test the efficiency of switching power supply and capturing the voltage, current, power and frequency at the maximum power operating point, the measurements will be displayed at the end of the sweep.

Triac Dimmer Function

This series AC power supply built-in triac dimmer function, which is used to do dimming and speed regulating test for lamp or electric motor to ensure the products work well both in R&D and production testing.

Power Line Disturbance Simulation

This series AC power supply provides powerful function to simulate all kinds of power line disturbance conditions such as cycle dropout, transient spike, brown out and etc. This feature make this series AC power supply ideal for R&D labs, universities and certification labs.




Voltage Sags/Voltage Spikes

Test Mode

The test mode compares measurement values against a user defined set of measurement limits and shows a PASS or FAIL result in one or more measurement are out of range. The user can set when start of the measurement and duration of the test.

File Save and Recall Via The USB Interface

The user can save the screenshot via the USB interface in the front panel. The user can import a CSV file via the USB interface to generate waveform output.

Parallel/Series/3-Phase Mode

This series AC power source can be used in parallel or series to provide more power, the maximum current up to 184A and the voltage up to 600V. In 3-phase mode, the Master unit is always phase A, Slave 1 is always phase B and Slave 2 is always phase C. The phase difference between phase A and B is always 120°and between phase A and C is always 240°. The output voltage of phase B and C will be set to the same setting as that for phase A (Master) if the Voltage Mode is set to COM. Or if the Voltage Mode is set to Multi, phase B and C output voltage can be set individually to simulate 3-phase unbalance system. The output of 3-Phase system can be connected for three-phase, four wire (Delta configuration) loads or for three-phase, five wire (Wye configuration) according to the application requirement.

External Control Function

By selecting Analog I/O card to achieve below function: Amplifier Mode In Amplfier mode, the power source acts as a power amplfier, taking a low-level analog signal and amplifying it by a fixed amount of gain.

Programmable Output Impedance Function

The low output impedance and low voltage harmonics of this series power supply make it ideal for IEC61000-3-2 standard testing. A current feedback control circuit makes the output voltage changed with load. This feature is suitable for IEC61000-3-3 Flicker tests. The user can set the resistance and inductance value according to the test requirement.

Harmonic/inter-harmonic Generation Simulation and Measurement Function

Support creating waveforms made up of a series of harmonics frequencies, amplitudes and phase shifts, up to 40 orders harmonics of 50Hz or 60Hz. The harmonics measurement function measures total harmonic distortion (THD), DC voltage and current and fundamental voltage and current for output settings of 50Hz or 60Hz.The measurement of 2~40 orders can be displayed in absolute values or in percent of the fundamental, the harmonics measurement will be displayed with a graphical representation.

Difference Between Advanced Version and Professional Version

Options & Accessories

  • Input protective cover (standard)With fixing screws

  • Handles (standard)With fixing screws

  • Input protective cover (standard)With fixing screws

  • Output protective cover (standard)With fixing screws

  • RS-232 communication cable (standard)For RS-232 communication

  • USB communication cable (optional)For USB communication

  • Three-pin plug power cord (standard)10A, standard for 2U

  • Power cable (standard)1.5M, standard for 3U/4U

  • System bus communication cable (optional)Connect for master-slave communication

  • LAN & GPIB card & communication cable (optional)Applicable in 2U

  • External control card & cable (optional)Applicable in 2U

  • Parallel card & cable (optional)Applicable in 2U

  • GPIB card & cable (optional)Applicable in 3U/4U

  • LAN communication card & communication cable (optional)Optional for 3U/4U models, standard 568A-568B, this accessory must be confirmed when placing an order "

  • Parallel&external control&cable (optional)Applicable in 3U/4U

  • Three-pin plug power cord (optional)10A or 16A

  • Power cable (optional)1.5M

  • Professional version upgrade software (optional)Upgrade version from advanced to professional

Related downloads

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Model Search

Model Voltage Current Power Standard Communication Interface Frequency Range Size  
SP300VAC600W 150V/300V 5.6A/2.8A 600VA RS232/RS485/USB15~1200Hz2U Inquiry
SP300VAC1000W 150V/300V 9.2A/4.6A 1000VA RS232/RS485/USB15~1200Hz2U Inquiry
SP300VAC1500W 150V/300V 13.8A/6.9A 1500VA RS232/RS485/USB15~1200Hz2U Inquiry
SP300VAC2000W 150V/300V 16A/8A 2000VA RS232/RS485/USB15~1200Hz3U Inquiry
SP300VAC3000W 150V/300V 27.6A/13.8A 3000VA RS232/RS485/USB15~1200Hz4U Inquiry
SP300VAC4000W 150V/300V 32A/16A 4000VA RS232/RS485/USB15~1200Hz4U Inquiry
SP300VAC5000W 150V/300V 46A/23A 5000VA RS232/RS485/USB15~1200Hz4U Inquiry

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