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AMETEK Highlights Fully Automated EN50530 Test System at Solar Power International
- Posted on 25/10/11 08:00AM
2012 Launch of EN50530 Leverages “Surround the Inverter” Concept, Reduces Time to Market

Solar Power International, DALLAS, TX – October 19, 2011AMETEK Programmable Power (www.programmablepower.com) announces a fully automated EN50530 test solution that utilizes three core “Surround the Inverter” elements: the TerraSAS Solar Array Simulator, MX/RS Grid-Simulator and CTS Compliance Test System.

AMETEK is showcasing the TerraSAS Solar Array Simulator, which provides the DC emulation element of the EN50530 standard, at the Solar Power International Show, Dallas, TX, October 18, 2011, Booth #323, Hall A.

The automated test system is configured and controlled via AMETEK Windows®-based software that enables users to select the EN50530 Test regime, connect the inverter under test, start the test, walk away and return to collect the report. Previously, testing to the EN50530 standard for efficiency of grid-connected PV inverters required an engineer or technician to be present to manually progress through each curve set. Main target groups are PV inverter manufacturers and test houses.

“Our goal is to provide a fully automated EN50530 test system that emphasizes precision MPP (Maximum Power Point) Tracking capabilities and control of AC Grid parameters to ensure reliable and accurate efficiency measurements. The key is to automate those tasks that can be automated, allowing the engineer to focus on inverter design," notes Dan Donati, Vice President, AMETEK Programmable Power Solutions.

AMETEK Programmable Power, through its Elgar brand of solutions, has supplied solar array simulators for more than 20 years for ground-based satellite test systems. Its “Surround the Inverter” programmable power products and systems simulate the output of solar arrays, the loads applied to the output of the inverter, and the interface with the grid, providing a comprehensive and energy efficient means of testing PV iInverters.

TerraSAS Solar Array Simulators are available as single- or multi-channel systems from 5kW-1MW (80V-1500V). Single/Three-Phase MX/RS Series Grid Simulators are available from 15kVA-1MVA and offer an innovative Energy Regeneration mode that returns up to 85 percent of the electricity generated by the inverter back to the grid. Shipment of the EN50530 solution is expected to begin in early Q2 of 2012.

AMETEK Programmable Power is a division of AMETEK, Inc., a leading global manufacturer of electronic instruments and electromechanical devices with annualized sales of $3.0 billion.
AMETEK Displays 3U Single Box PV Emulator at Solar Power International
- Posted on 25/10/11 07:00AM
High-Performance Testing of PV Inverters in a Production Test Environment for Ensuring Final Test Data Validity

Solar Power International, DALLAS, TX – October 18, 2011AMETEK Programmable Power (www.programmablepower.com) announces a 3U single box PV simulator. The standalone Solar Array Simulator (SAS) leverages the same AMETEK Windows®-based software as the turn-key TerraSAS solutions.

AMETEK is showcasing its TerraSAS solutions at the Solar Power International Show, Dallas, TX, October 18, 2011, Booth #323, Hall A.

The TerraSAS single box simulator was designed to bridge the gap from a research and development environment to a production environment, while maintaining continuity of performance, accuracy and user interface.

“Our goal is to provide a standalone PV simulator for the production testing of PV inverters that offers the same precision MPP tracking capabilities as our successful TerraSAS solutions. This approach ensures the accuracy and validity of final test data of the PV inverters," notes Dan Donati, Vice President, AMETEK Programmable Power Solutions.

AMETEK Programmable Power, through its Elgar brand of solutions, has supplied solar array simulators for more than 20 years for ground-based satellite test systems. Turn-Key TerraSAS Solar Array Simulators for the residential and commercial inverter industry are available as single or multi-channel systems from 5kW-1MW (80V-1500V).

The TerraSAS single box PV Emulator will be available as single-channel 3U 10kW (1000V) system and shipment will begin in Q1 of 2012.

AMETEK Programmable Power is a division of AMETEK, Inc., a leading global manufacturer of electronic instruments and electromechanical devices with annualized sales of $3.0 billion.
AMETEK Launches California Instruments CSW Series AC/DC Power Sources
- Posted on 01/07/11 07:00AM
New Generation Instruments Integrate High Performance Power Source and Power Analyzer to Replace Multi-Unit Systems

SAN DIEGO, CA – June 22, 2011 – AMETEK Programmable Power (www.programmablepower.com) today introduced the California Instruments CSW Series, a completely new generation of AC/DC power sources that address the demands for more features without additional cost. By combining a flexible AC/DC power source with a high performance power analyzer, the compact CSW Series is capable of handling complex applications that have traditionally required multiple systems. This high level of integration simplifies wiring, saves valuable rack space, and ultimately reduces system cost.

5,550 - 33,300 kVA Output
A direct-coupled, transformerless design allows the CSW Series to output AC and DC on up to three separate phases or on the same phase. A single unit provides up to 5,550 kVA output, and up to six units may be connected in parallel to provide up to 33,300 kVA output. Instead of changing configuration settings from a front panel or reconfiguring internal jumpers, as you need to do with other systems, all a user needs to do is to connect each auxiliary power source to the master power source with a system interface cable. When powered, the system recognizes that auxiliary units are connected and automatically configures itself.

Powerful Waveform Generation
Built around a modern, DSP-based digital controller, the CSW Series offers powerful waveform-generation capabilities allowing users to more easily generate complex harmonic waveforms, transient waveforms, and arbitrary waveforms than ever before. This controller allows the power source to provide both AC and DC outputs simultaneously on any of the three outputs. The AC outputs can run at frequencies up to 5 kHz, much higher than the typical 1.2 kHz offered by most other AC power sources.

The supplied Windows Graphical User Interface (GUI) program can be used to define harmonic waveforms by specifying amplitude and phase for up to 50 harmonics. The waveform data points are generated and downloaded by the GUI to the AC source through the remote interface. Up to 200 waveforms can be stored in nonvolatile memory and given a user defined name for easy recall.

Using the GUI program, users can also specify and generate arbitrary waveforms. The program includes a catalog of custom waveforms and also allows real-world waveforms captured on a digital oscilloscope to be downloaded to one of the many AC source’s waveform memories.

The CSW series can also be ordered with firmware that provides pre-programmed test sequences for avionics testing and EMC testing. For avionics testing, there are options for both Airbus and Boeing test sequences, and includes both commercial and military tests. For EMC testing, test firmware is available for running IEC 61000 tests.

Waveform Acquisition and Harmonic Analysis
The CSW Series includes a measurement system that digitizes voltage and current waveforms in real time and stores measurements in a 4K deep sample buffer. This time domain information provides detailed information on both voltage and current waveforms. Waveform acquisitions can be triggered at a specific phase angle or from a transient program to allow precise positioning of the captured waveform with respect to the AC source output.

The front panel LCD displays captured waveforms with cursor readouts. The included GUI program also allows acquired waveform data to be displayed, printed, and saved to disk.

The CSW Series can also provide detailed harmonic information on acquired waveforms. Information on the first 50 harmonics of the fundamental voltage and current signals (up to 16 kHz) are available. Harmonic content can be displayed in both tabular and graphical formats on the front panel LCD for immediate feedback to the operator. Alternatively, the included GUI program can be used to display, print and save harmonic measurement data.

Other Key Features
The CSW Series has many other key features that make these power sources more effective and easier to use:
• High Crest Factor. With a crest factor of up to 3.25:1; the CSW Series AC source can drive difficult nonlinear loads with ease, delivering up to 64 A of repetitive peak current (156 V range) per phase.
• Ease of calibration. The CSW Series’ voltage, current, phase angle, and external signal input functions can be calibrated by using either the front panel or GUI.
• External Amplitude Modulation. The CSW Series provides an input that allows users to modulate the output with an external signal. A 0-5 Vrms provides 0 to ≥20% modulation for each of the three output phases (±2% of full scale output). Users can modulate any programmed function, be it internal or external.
• External Sync Input. When this feature is enabled, the CSW Series will track its output frequency and lock the Phase A output frequency to the frequency of the TTL signal on the external sync input. Users can program the phase angle of Phase A output relative to the edge of the external TTL input. There is no jitter between the outputs and the external TTL input.
• External Direct Input. Users can tie any of the CSW Series’ three phase outputs to an external analog input. They can also program the gain on each input separately.
• External Gain Control. The CSW Series has two inputs that allows users to set the gain externally on individual phases using an analog voltage. The maximum gain for the high-voltage input is 44.13, the maximum gain for the low-voltage input is 22.065.
• Clock Output. When enabled, the CSW Series will output clock pulses in sync with the output to enable two or three CSW Series units to sync with one another for systems that require more than three phase output.
• Sync Output. This TTL-level signal is available at either Sync Out BNC connector on the rear panel or the Trigger BNC connector on the front panel.

AMETEK Programmable Power is a division of AMETEK, Inc., a leading global manufacturer of electronic instruments and electromechanical devices with 2010 sales of $2.47 billion.

Full data sheet is available at: http://www.calinst.com/go/csw/
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