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Telonic Instruments introduces compact power supply range

Telonic Instruments is now shipping Kikusui’s latest compact switching power supplies, designed to reduce power consumption and costs for testing in a wide range of markets.

The PCR-WE/WE2 series of multi-functional switching AC power supplies range from 1 kVA to 36 kVA AC/DC output with frequency conversion from 1Hz to 5kHz. They can simulate power line abnormalities such as power outages, voltage dips and voltage peaks for testing power source switches and electronic devices.

They have been designed for a wide range of diverse market segments including: electric vehicles (EVs); plug-in hybrid vehicles (PHVs); avionics; servers; power and EMC equipment.

The Kikusui high performance, PWM inverter type AC power supplies range from 1kVA to 36 kVA AC/DC output. This series, which is available from Telonic Instruments, includes single phase versions (the PCR10000WE and PCR20000WE) or models with switchable single phase / single phase three-wire / three phase output (PCR30000WE2, PCR60000WE2, PCR120000WE2, PCR180000WE2, PCR240000WE2, PCR30000WE2 and PCR36000WE2).

The PCR-WE/WE2 series supports mix-and-match parallel operation for large scale test systems up to 144 kVA (6 kVA models and above, with a maximum of four units).

These compact supplies are up to 60% smaller than earlier PWM models, to occupy minimal space in a testing system, while efficiency has been increased by approximately 7%, to realise an overall efficiency of 85%. Power and energy density have been increased compared with the earlier PCR series.

The small form factor has been achieved without compromising ripple noise performance. The supplies have extremely low switching noise, with ripple noise as low as 0.25Vrms for the 1 kVA to 6 kVA models.

Output frequency up to 5 kHz. This frequency performance allows the sharp voltage fluctuations, required in airborne electronic equipment testing to be simulated for use in avionic and defence markets. In addition, the 6 kVA / 6U form factor fits easily into an automated rack testing system without requiring space for an expensive, specialized power source installation.

The PCR-WE/WE2 series is versatile and supplies have LAN, USB and RS232C interfaces, with a GPIB interface available as a factory option. The LAN connection is LXI-compliant, allowing the user to monitor and control the device from a computer, smartphone or tablet web browser. As well as flexible working, this feature is particularly useful when conducting AC tests in anechoic chambers or shielded rooms.

To save power, models rated 6 kVA and above have a sleep mode and a power saving mode.

Neil Tyler

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