High power AC/DC electronic load | AEL-5000 series

GW Instek AEL-5000 Series
AC/DC Electronic Load

The GW Instek AEL-5000 series of electronic AC/DC loads includes 20 models. The maximum power range of a single unit is from 1875W to 22500W, and up to eight units can be connected in parallel. The maximum power of single-phase parallel connection can reach 180 kW, and the total power of 3-phase can reach 540 kW, which are suitable for UPS, Inverter/Breaker, AC Power Source, Battery, Fuse/Breaker, DC Power Source and other applications.

The AEL-5000 series has built-in precision measurement circuits such as 16-bit A/D and DSP to provide accurate measurement items, which include voltage root mean square value (U_rms), current root mean square value (I_rms), and watt value (Watt), apparent power (VA), crest factor (CF), power factor (PF), total harmonic distortion (THD), voltage total harmonic distortion (VTHD), current total harmonic distortion (ITHD) , peak current (Ipeak), maximum current (I_max), minimum current (I_min), maximum voltage (U_max), minimum voltage (U_min), time measurement. In addition, built-in test modes include UPS Efficiency, PV Inverter Efficiency, UPS Back-up time, Battery Discharge time, UPS transfer time, Fuse/Breaker Trip/Non-Trip, short circuit simulation, OCP, OPP and other test modes.

The AEL-5000 series has the Turbo mode (ON or OFF can be selected) design, which can increase the current and power of the electronic load by 2 times in one second. For test applications that require transient high power and large current such as transient overload test of protective components or short circuit of Fuse/Breaker and AC power supply, OCP and OPP tests etc.

The AEL-5000 series also supports the „Load On“ startup function (pre-set Load On). When the inverter or uninterruptible power supply is turned on, the series directly loads the set load current to verify that whether startup of the inverter or uninterrupted power supply is stable.

For the application of the adjustable bandwidth (BW) function, users can reduce the BW setting value accordingly to meet the response speed of the DUT. Inrush Current verifies whether the transient response of the inverter output voltage is stable when the electrical appliance is turned on (Inrush Current) and when the electrical appliance is suddenly connected (Surge Current).

The entire series of AEL-5000 provides over-voltage warning, over-current, over-power, and over-temperature protection. Analog Input terminal can control constant current, constant power and other working modes through external voltage. Vmonitor/Imonitor terminal is used to connect external voltage/current monitoring device. In addition, a variety of optional control interfaces are provided such as GPIB, RS-232, USB, and LAN to meet the needs of system integration.

Features of the AC/DC Load AEL-5000 Series

• CC, Linear CC, CR, CV, CP and Rectifier Load Mode
• Frequency Range : DC, 40 Hz up to 440 Hz
• Turbo Mode for 2 times the Current and Power within 1 Second
• Three Units Parallel up to 90 kW and Three-phase △ or Y Load Connection Can be Synchronized Control by One Master Unit
• Loading and Unloading Angle Control; 0~359 Degree is Settable
• Positive Half-cycle or Negative Half-cycle Loading
• Supports SCR/TRIAC Current Phase Modulation Waveforms,90 Degree Trailing Edge and Leading Edge
• Optional Interface: GPIB, RS232, USB, LAN