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The RAYTEK-LSX series of power supplies was newly launched in 2021, featuring high-performance and high-power linear AC power. The linear amplifier in the RAYTEK-LSX series power supply meets the requirements of high peak factor, low distortion, and high fidelity output waveform, making it suitable for demanding AC test power supply applications. The independent model range is from 1500 VA to 6 kVA. It can be connected in parallel to expand the power from 8kVA to 30kVA. All models offer single-phase and three-phase modes.
Characteristic
• PWM Switch Mode Power Conversion TechnologyCommercial Avionics Power Test
The low noise and low distortion analog power conversion technology used in the LSX Series Power Source results in unmatched voltage quality and high peak current capability. A frequency range of 15Hz to 1200Hz supports both 400Hz fixed frequency as well as 360Hz to 800Hz wild frequency development and test with exceptional harmonics support.
For compliance testing to electrical avionics test standards like RTCA/DO160 Section 16 and Mil-Std 704, Windows 10 test software test sequences are available as an option.
Selecting the best Topology for Your Application
PWM AC Power Sources offer very good density, high efficiency, and perform well into low power factor loads. They use a combination of both linear and non-linear methods to achieve high efficiency conversion in lighter and smaller packages.
A trade-off is the method's lesser ability to provide high crest factor current and very low output distortion. The graphic below demonstrates the characteristics of PWM technology.
Output Phase Modes
Three phase LSX Models can be configured to operate in one of three available phase modes or FORMs:
Single Phase
Enables Single phase output with the load connected be-tween the 1 Phase and Neutral output terminals. Voltages are programmed phase to neutral.
Split/Single Phase
Enables high range Split/Single phase output. Load is connected either between the Phase A and Phase B output terminals (full voltage) or Phase and Neutral (half voltage). Voltages are pro-grammed phase to phase.
Three Phase
Enables Three phase output with the load connect between the A, B, C, and Neutral terminals. Loads may be connected either line to line or line to neutral. Voltages are programmed phase to neutral.
Wide Selection of Voltage Ranges
All LSX Series models support direct coupled output voltages up to 135VLN or 270VLL on single phase models or 135VLN/234VLL on three phase models.
For higher voltage output applications on three phase models, the transformer option (T-Option) offers three transformer coupled output ranges at ratios of 1:1.5, 1:2.0 or 1:2.5 for a maximum output voltage of 600VLL in split phase or or 585VLL in three phase mode.
Switching between direct coupled output voltage range and transformer coupled voltage range is done automatically so there is no need to disconnect and re-connect your EUT.
Powerful yet Easy to Use
Although LSX Series sources offer a wide range of operating modes and features, they are easy to operate through a large full color LCD display and soft key driven menus.
Top level menus are always available directly by pressing any of the five menu keys on the left of the display. Entering setup data is accomplished using the numeric keypad or the shuttle. Operating status is shown on screen using various colors to distinguish between setting, measurements and operator warnings, or error messages.
The built-in web server provides access to a large computer touch monitor based user interface with complete control over all LSX Functions and features without the need for any special software. The web browser based program and measurement screen is shown to the right.
Touch Screen and WiFi Connection
The standard external HDMITM Monitor interface supports the use of an external flat panel touch monitor for display and control of the power source. This allows measurements to be monitored from across the lab or factory floor as needed.
Alternatively, a tablet or smart phone can be used to operate the power source using the built-in LXI browser interface. Of course, extensive safety protocols are in place to prevent unauthorized access via WiFi or LAN connections.
Transient Programming for AC Power Test Applications
Voltage, Waveform and Frequency output transients are easily created from the front panel using an intuitive spreadsheet style data entry method. Data may be entered for a specific phase or for all three phases at the same time.
The LSX Series supports LIST, PULSE and STEP Mode Transient Types. The user can select the most appropriate type from the front panel or the web server interface. The image below illustrates the three modes graphically. Transients can be stored in non-volatile memory and easily edited as needed on screen.
If preferred, transient programming and execution can be also be accomplished using the available Windows control software or web browser interface.
he LSX Series' rich feature set supports a wide variety of AC power test applications. With full control over voltage, current, frequency, power, slew rates and phase angles, no test requirement is too challenging for the LSX to handle. This includes AC power compliance testing, transformer testing, appliance testing, DC charger testing, UPS testing and more.
The scope images shown here capture several examples of AC power test waveforms generated by an LSX.
200 Selectable Arbitrary Waveforms
In addition to sine wave, the LSX Series offers multiple selectable AC waveforms such as clipped sine wave at various distortion levels, square, triangle and stepped squares. The operator can create arbitrary waveforms using Pacific Power's PPSC Studio Windows software or using a web browser and download these to the power source. A graphical representation (preview) of each waveform is shown on screen and a waveform name alias can be assigned to each so the operator can be sure the correct waveform is applied to the unit under test.
Capture Voltage & Current Waveforms
Built-in digital scope function captures voltage and current time domain signals, perfectly synchronized to the output frequency. Voltage and current displayed with accurate phase relationship. Display output waveforms on front panel or in Web browser.
The browser user interface supports more advanced digital scope functionality by utilizing a PC or tablet's larger screen area allowing muliple scope channels and periods of voltage, current and power waveforms to be captured and displayed.
Harmonics Measurements
Eliminate the need for an external power analyzer by measuring voltage and current harmonics. Harmonics information is displayed in either bar charts or detailed table format for easy viewing and analysis.
Data is displayed for individual phase or all three phase simultaneously.
Auxiliary I/O Functions
To support integrated test system design and interaction with the load or other equipment, the LSX Series offers a range of analog and digital I/O functions.
User Programmable I/O. Assign command macros or programming parameters to analog or digital I/O pins as needed. This provides a unique level of customization for putting together sophisticated test stations.
Our Customer Support Program provides the training, repair, calibration, and technical support services that our customers value. In addition to receiving the right test equipment, our customers can also count on excellent support before, during and after the sale. With company owned support and service centers around the world, support is never far away. Complete calibration and repair services are offered at our US, European and Chinese manufacturing facili-ties (pls connect customer service ). Calibrations are to original factory specifications and are traceable to NIST (National Institute of Standards and Technology).
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