Home » R&S NGM200 bi-directional power supply-measurement combination
The Rohde&Schwarz NGM200 bi-directional power supply-measurement combination is a 2-quadrant power supply available in single- and dual-channel models of 60W and 120W. The voltage is adjustable from 0V to 20V and current can be supplied and dissipated from 6A to -3A per channel. The power supply is equipped with a 6.5 digit DMM for measuring voltage, current and power with an accurate resolution of 1uV /10nA. The NGM features extremely fast load regulation of less than 30us with minimal overshoot, even with rapid maximum load changes. Consider testing IoT devices going from standby to their operational mode. To offer the purest DC voltage possible with minimum noise and ripple voltage, the NGM200 uses linear output stages. This makes this power supply usable for driving and testing sensitive equipment where any type of noise and distortion must be avoided. Among other things, MMICs that operate in the microwave frequency range require an extremely clean supply voltage to do their job optimally.
The R&S NGM200 power supplies are equipped with a lot of functionality. For example, they are equipped with an accurate measurement unit with FastLog where voltage and current is recorded at a rate of 500 ksample/s. Every 2us a measurement is taken so that no momentary peak or dip is lost. Simulating batteries is easy with the pre-programmed battery profiles or the battery model editor. In this editor, a battery can be characterized as desired with characteristics the open-circuit voltage, series resistance and state of charge. To simulate the rising internal impedance when discharging a battery, NGM power supplies are equipped with adjustable output impedance from -50mΩ to 100Ω. Voltage or current steps can also be programmed as a function of time. And this up to as many as 4096 steps per cycle. Each step and the time in between can be set to 1ms resolution, making it easy to simulate very short voltage dips and spikes. Or steps of several hours to program a sequence that can last several weeks for long-term testing.
Damage to the NGM is prevented by the many safety features it is equipped with. Users can set their own limits to prevent overvoltage or excess power. To protect sensitive loads from excessive currents, the electronic fuse can be variably set. The delay time is also adjustable from 0ms to 10s in case a slow or fast response is expected from the fuse.
All this functionality should also be easy to operate. What immediately stands out about the appearance of the NGM200 power supplies is the large and clear 800x480p touch screen. This ensures a high degree of user-friendliness and gives a clear and orderly overview of settings and measurements Furthermore, the NGM power supply is equipped as standard with USB and LAN communication ports, optionally WLAN or GPIB can also be chosen.
Open the datasheet for detailed specifications of this product.
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"The ABB Power Grids Jumet organisation is an innovative development and production facility of ABB that manufactures active filters and battery energy storage systems to support a stable grid. To test these systems we have acquired two Cinergia GE/EL +120kVA eplus units capable of doing grid emulation (AC + DC), operating as an electronic load (AC +DC) and being a battery emulator. We have experienced very good support from TTMS in obtaining these two Cinergia units. This included organising an on-site demonstration and supplying loan systems prior to the delivery of our final systems. This way we could start testing as early as possible. TTMS also organised training for the operators from the original manufacturer. This support allowed us to introduce the first battery energy storage systems even prior to the full delivery of the Cinergia systems."
University of Luxembourg
“At the Energy and Environment department of the Faculty of Science, Technology and Medicine (FSTM) of the University of Luxembourg we do have different research projects related to green energy contributing to the development of eco-cities. As a long-standing partner of our research unit, TT&MS has proven that they are able to answer even the most complex questions in a professional manner. They have shown that they are always up to date with the latest technology and do not spare any effort to look at the application and even the situation on site. The exchange of ideas was always very pleasant and took place quickly. We look forward to further years of fruitful cooperation.”
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