Power Electronics Test & Measurement Solution

 The AC sources can be used for the complete grid simulation of all technical networks from DC to 500 Hz, optionally up to 15000 Hz, stepless voltage and current regulation, AC, DC as well as AC and DC output. High output power, a low harmonic distortion factor and excellent stability enable harmonic and flicker tests even with strong load fluctuations.

 The electronic high-performance loads are particularly suitable for test systems and industrial controls due to their rather compact 19" plug-in housings. 

The devices are regenerative, intermittent, electronic loads. This means that the absorbed DC energy is converted and fed back into the local power grid with an efficiency of up to 95%. This almost completely eliminates the usual heat generation in burn-in test fields, alternator tests or battery capacity tests and saves energy costs at the same time. 

The Bidirectional DC power supply with integrated, regenerative electronic load series PSB 9000 and 10000 provides 15kW in 3U or 30kW in 4U chassis with up to 2000 VDC. This series easily parallels supplies for almost 1.92MW of power. All  DC power supplies and loads feature true autoranging and thus over additional operating ranges.
The lower the test voltage, the higher currents are possible. Likewise, higher voltages are available for lower currents. This means that a much wider range of test routines can be covered with a bidirectional DC power supply.

The PSB series of bidirectional DC power supply features 5″ TFT touch panel display for intuitive control, setup and programming. The intelligent interface allows you to configure and test quickly without the need for extensive manual review.

Bidirectional dc power supplies come standard with an arbitrary waveform function generator, swappable digital interface control and built-in test routines for battery test, photovoltaic simulation and MPP tracking, to name a few.

 The classic electronic loads »EPS/EL 3000-B« EPS Electronic Power Supplies are the second generation of small desktop loads. Due to their compact size they are especially suitable for research laboratories, test applications or educational purposes. The DC input range features new voltages up to 500V, currents up to 60A at power ratings with 400W. Apart from basic functions of electronic loads, set point curves can be produced now in the integrated function generator (ramp, rectangular, triangular and trapezoidal curve types). 

For purposes of testing all kinds of batteries, such as for example constant current or constant resistance discharging, the devices offer a battery test mode. It counts values for elapsed testing time and cosumed capacity (Ah) and energy (Wh). For more detailed setup, there is also an adjustable threshold to stop the battery test on low battery voltage, as well an adjustable max. test period. The battery test function is usually applied on the DC input current and can either be selected and run in static (constant current) or dynamic (pulsed current) mode at the load (HMI). 

For three-phase mains supply 400 V and 50/60 Hz
Output power ratings: 30 kW, 45 kW, 60 kW, 75 kW, 90 kW
Output voltages: 80 V, 200 V, 360 V, 500 V, 750 V, 1500 V
Current of up to 3060 A
Pre-configured, pre-wired, turn-key ready compliant to EN60950
Basing upon power supply of series PSI 9000 3U, featuring
- Versatile function generator with ample simulations (PV, -fuel cell, -battery)
- Built-in USB and analog interface
- Plug'N'Play slot for optional interface retrofitting: e.g. Ethernet, CAN, CanOpen, Profibus, Profinet, RS232 and more
- Intuitivly operational HMI with coloured TFT-touch panel.
 

Programmable electronic DC loads »EPS/EL 9000B« series are especially suitable for test systems and industrial controls due to their compact construction of a 19” enclosure with 3+6 height units (3U+6U). The DC input range features new voltages up to 750V, currents up to 1020A at power ratings with 14,4kW. Apart from basic functions of electronic loads, set point curves can be produced in the integrated function generator (sine, rectangular, triangular and other curve types). Arbitrary curves can even be stored on and uploaded from a USB flash drive. In the battery test mode, a battery can be discharged with a constant current, - power or - resistance until the battery voltage reaches an adjustable final discharge voltage. If this threshold is exceeded, the load input is automatically switched off (deep discharge protection). The discharge time and consumed charge (Ah) are measured and displayed. An integrated MPP tracking function simulates solar inverters in 4 different processes. up to 16 units to be combined to a single system with a total power of up to 320 kW at 16320 A.
 

Series RACKS PS/PSE/PSI 9000 3U, EL 9000B/ELR 9000 3U, 24, 33 and 42U
DC power as source-, sink or combined source-and-sink system rack

Turn-key-ready system racks with 24U, 33U or 42U that can be fit with either power sources or electronic loads (sink) or a mix of sources- and e-loads (sinks)
Available options AC BUS (AC sub-distribution with integrated circuit breakers), DC BUS (central DC outlet via copper bars), emergency off (AC) via contactors, DC On/Off via output relays, air- and water cooled systems (incl. water distributor)
Available as stand-alone type with safety compliance to DIN EN 60950 (safety for information technology equipment) or extended to comply with DIN EN 60204-1 (safety of machinery)
Voltages 0-80V to 0-1500V, currents of up to 3500 (per rack) and power of up to 150kW (per rack)
Manual and remote control via analogue and digital interfaces, professional control software
“Power-Control” with multiple apps.