Programmable AC power source outputs 300VA

30th April 2015
Posted By : Mick Elliott
Programmable AC power source outputs 300VA

A new AC power source, the model 9801, has been launched by B& K Precision, expanding its AC power supply offerings. This compact 19in. half-rack single-phase AC source outputs up to 300 VA and measures AC power characteristics. Users can operate the AC source in a 0-300 V continuous sweep range or 150 V/300 V auto-switching range with adjustable start and stop phase angle control.

With a built-in power line disturbance (PLD) simulator, list, sweep, and dimmer mode, the 9801 is suitable for simulating various AC power conditions and provides a complete solution for manufacturing, R&D, and pre-compliance testing applications.

For certain compliance testing applications, manufacturers may need an AC source to simulate various AC power line outlets and disturbances. This includes evaluating a product's immunity to less than ideal input voltage situations such as dips, surges, and dropouts.

Therefore, programmable AC sources with built-in power line disturbance simulation functions can be an invaluable tool for testing devices under these conditions. The 9801 features a low distortion, single-phase AC output with programmable RMS voltage up to 300 V, maximum RMS current up to 3A, and adjustable frequency from 45Hz to 500Hz. The power source is also capable of delivering up to 12A peak current. Provided on the front panel is a universal AC output socket and an easy-to-use rotary knob to set AC waveform parameters. The bright VFD display continuously displays the output voltage, peak and RMS current, frequency, power factor, apparent/true power, and elapsed time.

The rear includes an additional AC output terminal block for wire connection and an external BNC connector for output On/Off control and monitoring, external triggering, and synchronisation. Users will also benefit from the 9801's standard RS232, USBTMC-compliant USB, and LAN interfaces for remote control and programming.

Built-in simulation functions include list mode with PLD simulator, sweep, and phase-cut dimming output. The simulation modes allow users to program varying steps of voltage, frequency, width, slope, and disturbances, sweep the output voltage and frequency, and control the phase cut-off of the AC sine wave's leading or trailing edge. For pre-compliance testing, voltage fluctuations and frequency simulations can be set up according to IEC61000-4-11, IEC61000-4-14, and IEC61000-4-28.

Furthermore, the 9801 provides several protection features: overvoltage (OVP), overcurrent (OCP), overpower (OPP), and overtemperature (OTP) protection, settable voltage and frequency limits, key lock function, and RMS/peak current protection settings to shut off the output when a load exceeds the set current.

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