APS 3D Series Programmable AC & DC Electronics – High Power

Information

Overview

Key Features

Applications

Photos

PROGRAMMABLE AC & DC LOADS

The 3D Series AC & DC loads consists of a high power AC and DC capable load with support for up to 280Vac/400Vdc. This load offers a wider programmable Crest and Power Factor range than the 3C Series loads.

All 3D Series model loads share a common, modern user interface. Packaged in a compact 19” 4U chassis, 3D Series loads support up to 1875W True Power & 1875VA Apparent Power per chassis. The -EPF option hardware may be added to increase Apparent Power from 1875VA to 3700VA. For higher power requirements, 3D Series load can be paralleled using their standard Master/Slave mode. to support power levels up to 5625W/VA. Master/Slave configurations are controlled from the master front panel or remote control interface. The MODE Option allows automatic switching between 3P4W, 3P3W or 1P2W phase modes.

The Adaptive Power 3D Series load is intended for medium to high power AC or DC test and product development applications in a wide range of industries. Input voltages up to 280Vrms in AC mode and 400Vdc in DC mode are supported. This load is particularly suited for testing AC Sources and DC/AC inverters. Their flexible V-I operating curves span range of voltage and current combinations at any given power level. The 3D038-38 has a low range mode for enhanced accuracy and resolution at lower voltage and current levels, further increasing their effectiveness. This model includes application specific test modes for UPS testing, Battery Testing and PV Inverter testing to speed up production throughput.

The 3D038-38 supports up to 1875W and 1875VA per unit and can be paralleled to handle higher power requirements. An optional external PF extender option (-EPF) increases Apparent power range from 1875VA to 3700VA.

1875W, 1875VA or 3750VA with -EPF option
Up to 5625VA/phase when paralleled
Master/Slave models at 7500VA/W and 11,250VA/W
Voltage Ranges, 50 – 2800Vac / 50 – 400Vdc
Frequency Range: DC, 40Hz ~ 70Hz
Current Ranges 18.75A rms, 46.875Apk
Unique TURBO mode doubles current & power for overload testing
High-Speed 5½ Digit Precision Metering Capability
Parallel Operation for High Power Applications
Three phase Delta & Wye Master mode support
MODE option available for Delta, Wye or Single phase input selection
Voltage & Current Monitor Output Signals
Operating Modes: Constant Current (CC), Linear Constant Current (LCC), Constant Resistance (CR), Constant Voltage (CV), Crest Factor (CF) control, Rectifier mode, RLC Mode
Leading and Lagging Power Factor (PF) 0.0 to ±1.0
Built-in Test Modes: UPS Efficiency, Transfer & Backup , PV Inverter, Battery, AC rectifier, Fuses, Inrush & Surge Current
Over Current Protection Test Mode
Over Power Protection Test Mode
Conventional and Linear CC Modes
LAN, USB, RS232 or GPIB Interfaces
CE Mark

Load Versatility

All APS 3D Series Loads are equipped with a large high brightness Fluorescent display and functional keyboard. This makes these load very user-friendly. Built in modes and capabilities cover a wide range of special load applications. Enhanced precision metering of Voltage, Current, Power and Resistance compared to prior generation load models is standard.

AC Power Source Testing (AC Mode)

Elaborate testing of linear and switch mode AC Sources, DC/AC inverters or Frequency changers is made possible by flexible ranging and wide V-I operating curves found in all 3D Series APS loads. This supports extensive production test and burn-in of AC power supplies, UPS’s, PV inverters as well as fuse and breaker testing. Standard test modes for these types of tests are built-in the 3D load firmware so less programming and user involvement is required compared to traditional loads.

AC Power Source Design (AC Mode)

With built-in features like over current protection (OPC) test and over power protection (OPP) test and Power and Crest Factor control and non-sinusoidal waveform testing, new AC power source designs can be thoroughly evaluated against design specifications. An analog input mode allows arbitrary current waveforms to be applied to a unit under test.

AC?DC Converter and Power Supply Design & Test (DC Mode)

The 3D Series load to double duty as fully capable DC loads as well so you are not stuck with wrong type load when it comes to testing AC/DC power supplies or DC/DC converter testing. (Not suitable for testing below 40Vac).

Battery Charge/Discharge Testing (DC Mode)

Using the DC load mode, specific discharge current levels can be set as a function of battery voltage. This allows characterization and performance testing of various battery chemistries. Several AC/DC supplies and converters can be tested in DC mode as well. Special battery discharge protocols are built-in the load including SoC monitoring and timed discharges.

Model Comparison

Model	DESCRIPTION	Max Power (W/VA)	Max Voltage (V)	Max Current (A)	Rack Height
3D018-18	AC&DC Electronic Load	1875W / 1875VA	280Vac / 400Vdc 1)	18.75	4U
3D018-18-EPF	AC&DC Electronic Load	1875W / 3700VA	280Vac / 500Vdc	18.75	8U

Note 1): Extended PF Option -EPF increases apparent power range to from 1875VA to 3700VA. Specify -EPF option when ordering.

(888) 239-1619
sales@ppstsolutions.com 2802 Kelvin Ave Suite 100
Irvine, CA 92614 USA