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AMETEK Programmable Power News
SORENSEN SG Series Now Expanded To Include 800VDC Model
- Posted on 04/05/10 07:00AM
SAN DIEGO, CA, U.S.A. —The Sorensen SG Series of programmable power supplies has been expanded to include a 0-800Vdc offering. This product is targeted to meet the emerging higher voltage requirements of the hybrid vehicle component and PV inverter test markets. The SG is available with 5kW, 10kW or 15kW in a 3Uchassis. Higher power systems can be easily configured via the SG series user friendly paralleling capability. The SG Series is designed for sharp, load transient response, low noise and exceptional power density. Featuring front- to-rear, forced air convection cooling, SG series products can be rack mounted with zero vertical separation thus optimizing rack utilization.

The Sorensen SG Series is available in two control versions: SGA with basic analog controls and SGI with intelligent control features. The SGI version combines onboard intelligent controls with outstanding power electronics that enable sophisticated sequencing, constant power mode and save/recall of instrument settings. Looping of sequences makes the SGI ideal for repetitive testing. It also features an impressive vacuum fluorescent graphical display in eight languages, context sensitive “soft” keys, front panel keyboard for simplified programming and a RS-232 interface.

The SGA version is suited for those customers requiring simple front panel analog controls or external control. It has the same high-performance power electronics as the SGI and such essential features as 10-turn potentiometers for setting voltage and current, 3 ½ digit LED readout.

Both SGA and SGI models offer optional LXI Class C Ethernet or IEEE-488.2 interface.

For detailed price and availability information, contact AMETEK Programmable Power sales at www.programmablepower.com, or contact your local, authorized sales representative. AMETEK Programmable Power is a division of AMETEK, Inc., a leading global manufacturer of electronic instruments and electromechanical devices with 2009 sales of $2.1 billion.

For more information, contact
 AMETEK Programmable Power
9250 Brown Deer Road, San Diego, CA 92121.


Web site: www.programmablepower.com
AMETEK’s TerraSAS Solar Array Simulator Enhances Micro-Inverter Testing
- Posted on 31/03/10 07:00AM
New TerraSAS provides turn-key solution for testing grid-tied inverters and DC charge controllers; High-speed response enhances maximum power point (MPP) tracking simulation

SAN DIEGO, Calif., U.S.A., March 31, 2010— The Elgar brand TerraSAS Solar Array Simulator from
AMETEK Programmable Power offers a fully integrated solution for the design, development and production testing of inverters and micro-inverters for domestic and industrial solar energy systems. The TerraSAS simulates photovoltaic (PV) dynamic solar irradiance and temperature characteristics over a range of weather conditions from clear to cloudy and over a specified time interval to produce the current / voltage (IV) characteristics for the specified PV array for those conditions.

For ease of use, the system’s simulation engine is able to download data from the National Renewable Energy Laboratory (NREL) Solar Advisor Model database defining key parameters - open circuit voltage (Voc), short circuit current (Isc) and maximum power point voltage (Vmpp) at 25 degrees C and 1000 W/m2 irradiance - so that the IV curve can be calculated according to a standard solar cell model for virtually any fill factor or solar material. Other PV panel IV curves can be entered manually. Systems with multiple panels with different characteristics resulting in “multiple hump” IV curves also can be simulated. In addition, the TerraSAS is capable of simultaneously simulating up to 24 parallel channels for use with micro-inverters.

“An essential part of this testing is to provide the inverter under test with accurate simulation of the PV array response to its maximum power point tracking (MPP) function. To perform this task, the power source must accurately process the PV array's IV curve without filtering the low frequency ripple voltage produced by the inverter to track MPP,” comments Eric Turner, AMETEK product manager for TerraSAS.

“The TerraSAS delivers an order of magnitude improvement in this critical response over conventional switch mode DC power sources. The application of high-speed switching power supplies and advanced DSP signal processing allows us to attain superior MPP tracking response without the need for bulky and expensive linear power supplies," notes Turner.

The modular, rack-mounted Elgar TerraSAS system offers the following:
  • One or more programmable DC power supplies with optimized, high-speed output response available in 1 to 15 kW increments
  • A controller module and simulation engine for implementing the sequencing of the PV panel(s) IV curves
  • Power supplies that can be configured master/auxiliary to provide high power systems
  • User friendly key board and Graphical User Interface (GUI) display
  • Relays for output isolation and polarity reversing
For more information, contact AMETEK Programmable Power sales at www.programmablepower.com or contact an authorized sales representative.

AMETEK Programmable Power is a division of AMETEK, Inc., a leading global manufacturer of electronic instruments and electromechanical devices with 2009 sales of $2.1 billion.

Editor Contact:
AMETEK Programmable Power
Craig Frahm, Marketing Manager
9250 Brown Deer Road
San Diego, CA 92121
Phone: 858.678.4459
Email: craig.frahm@ametek.com

Agency Contact:
Welcomm, Inc.
Greg Evans, P.E.
7975 Raytheon Road, Suite 340
San Diego, CA 92111
Phone: 858.279.2100
Email: greg@welcomm.com
AMETEK’s Sorensen XG 1700 Packs 1700W into Programmable DC Supply
- Posted on 18/11/09 08:00AM
SAN DIEGO, Calif., -- November 18, 2009 -- The Sorensen XG 1700 Series delivers an industry-leading 1700 watts of programmable DC output well-suited for test, production, laboratory, OEM and quality assurance applications. Offered in 12 models with fully programmable output voltage ranges from 6V to 600V, the XG 1700 delivers a tightly regulated, low noise, low ripple output in both constant voltage and constant current modes. The XG 1700 also provides two low-power auxiliary DC output channels suitable for driving control relays or powering other system accessories.

The Sorensen XG 1700 1U package is designed for compact rack mounting of multiple units. Up to 30 units can be configured into a one-master, multi-slave multichannel power subsystem using simple RJ-45 terminated interconnections. The unit also features a “Green” sleep mode, automatically powering down when idle.

In addition to precise, digital encoder front panel control and simultaneous voltage and current displays, the XG 1700 includes standard RS232/RS485 and USB remote control interfaces. It also offers optional GPIB and LXI Class C Ethernet control inputs. Commonly used, SCPI compliant, device drivers are available to support system applications. Analog control and read-back full scale signals can be user defined, from 0 to 2V to 0 to 10V in a continuously variable manner, facilitating easy substitution of the XG 1700 into existing test or process control systems.

The XG 1700 supports autonomous program sequencing with the capability to store, recall and execute pre-programmed test routines including the operation of the auxiliary outputs, minimizing command latency and system controller overhead and thereby maximizing system throughput.

According to William Ruff, Director of AMETEK Programmable Power Product Marketing, “The XG 1700’s combination of high power density, flexible standard and available control interfaces, autonomous program sequencing, remotely controllable auxiliary outputs and multi-slave control, makes it the perfect system power supply choice.”

For detailed price and availability information, contact AMETEK Programmable Power sales at www.programmablepower.com, or contact your local authorized sales representative.

Editor Contacts for more information:

AMETEK Programmable Power
Craig Frahm, Marketing Manager
9250 Brown Deer Road
San Diego, CA 92121 U.S.A.
Phone: (858) 678-4459
Email: craig.frahm@ametek.com

Agency Contact: WelComm, Inc.
Greg Evans, P.E.

7975 Raytheon Rd. Suite 340,
San Diego, CA 92111
Phone: 858-279-2100
Email: greg@welcomm.com

About AMETEK Programmable Power
AMETEK Programmable Power is a division of AMETEK, Inc., a leading global manufacturer of electronic instruments and electromechanical devices with 2008 sales of more than $2.5 billion.
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