Keysight N8931A DC Power Supply, 80 V, 510 A, 15000 W, N8900 Series

Description

More than 500 A changes how you wire a test bench. Rated at 80 V, 510 A and 15000 W, the Keysight N8931A DC power supply belongs to the N8900 Series of autoranging systems and takes 208 VAC three phase. Lost in HCM lists it for rental and sale, and it arranges repair intake on request.

Why 510 A and 80 V never meet

Voltage and current are separate limits, so the 15000 W rating caps their product. Divide the rated power by the voltage you plan to use, and you get the current ceiling at that point.

So the full current is available only at low voltage. This unit therefore suits low-voltage, high-current loads far better than 80 V loads. Also, check each of your operating points against the Keysight data sheet.

Listed specifications

• Type: N8900 Series autoranging system DC power supply.
• Maximum output: 80 V, 510 A and 15000 W.
• AC input: 208 VAC, three phase.
• Interfaces: LAN, USB, GPIB and analog.

Wiring for very high current

At this level, the cables and joints matter as much as the source. Rate the conductors for the current, and keep connection resistance low, because poor joints heat up. The listing asks for an engineering review of both before you power a load. In addition, remote sensing and parallel or series operation depend on the configuration, so follow the maker’s instructions for them. Set the overvoltage and current limits from what the device under test needs, and check polarity before you enable the output.

Jobs for the Keysight N8931A DC power supply

• Feeding DC-powered assemblies and converter inputs during development.
• Running controlled load tests that need large current at modest voltage.
• Supporting repeated power-on checks and endurance runs in production.

Remember that it is a plain DC source. Do not assume it replaces a bidirectional battery emulator or a regenerative supply, and confirm inrush and shutdown needs first.

Rent, buy or send it for repair

Rent the Keysight N8931A DC power supply for a short validation campaign, an urgent replacement or a temporary capacity boost. Instead, buy if your lab needs the current every week. If your own unit fails, then Lost in HCM starts from the serial number, the symptoms and photographs. Meanwhile, SMK Vietnam only shows the listing, and it does not stock or service anything.

To begin, request a quote from Lost in HCM with your current and voltage pairs, dates and delivery city. You can also see more power supplies, read about the brand on the Keysight website, or ask SMK Vietnam.

Questions about the N8931A

What current is possible at 80 V?

Roughly 188 A. At that voltage the 15000 W rating, not the 510 A limit, sets the ceiling.

Which AC feed does it need?

The listing shows 208 VAC, three phase. Ask for a photo of the label and the option list, since the factory input option must match your site.

Can I run two units in parallel?

That is a configuration-specific function. Follow the manufacturer’s instructions, and ask Lost in HCM before you plan it.