MIL-STD-704

MIL-STD-704

Power Supply Solutions for Military Aircraft

ACT is proud to offer MIL-STD-704 products. MIL-STD-704 power supplies are aircraft power supplies that meet the requirements called out in MIL-STD-704. Not all power supplies meet this, which is often required for US military aircraft, and it is a sure sign of performance you can trust when seeking power supplies for your own applications.

What Is MIL-STD-704?

According to MIL-STD-704, the purpose of this interface standard is to ensure compatibility between the aircraft electric system, external power, and airborne utilization equipment and establishes the requirements and characteristics of aircraft electric power provided at the input terminals of electric utilization equipment. It is a requirements standards created by the U.S. military.

A MIL-STD-704 power supply converts the incoming aircraft power to voltage levels that the utilization equipment needs to operate. Incoming aircraft power is has follows:

  • AC systems
    • 115/200 volts at 400 Hz
    • 115/200 at 60 Hz (COTS only)
    • 115/200 volts varying from 360 to 800 Hz (known as variable frequency source)
    • 230/400 volts at 400 Hz (known as a double-voltage system)
  • DC Systems
    • 28 VDC
    • 270 VDC

 

Some of the input steady state characteristics with set limits, according to the MIL-STD-704 standard, are:

  • Steady state voltage (AC and DC Systems)
  • Voltage phase difference (AC Systems)
  • Voltage modulation (AC Systems)
  • Voltage unbalance (AC Systems)
  • Crest Factor (AC Systems)
  • Steady state frequency (AC Systems)
  • Frequency modulation (AC Systems)
  • DC component (AC Systems)
  • Distortion factor (AC and DC Systems)
  • Distortion spectrum (AC and DC Systems)
  • Ripple amplitude (DC Systems)

 

Also included are transient characteristics like:

  • Peak voltage (AC Systems)
  • Frequency transient (AC Systems)
  • Voltage transient (AC and DC Systems)

 

Other topics the MIL-STD-704 standard covers include abnormal operation, emergency operation, and load characteristics for both AC and DC power systems.

It’s no easy task for a product to meet MIL-STD-704. These products must prove they can function effectively under extreme conditions, and customers may subject them to a variety of different tests to see how well they hold up and how those conditions affect them. Once a product passes this vigorous testing, you can be confident it will work for you as promised and stand up to the harshest conditions you can subject it to, whether you are interested in military or private sector applications for your MIL-STD-704 power supply product.

Order Your MIL-STD-704 Products from ACT Today

At ACT, our MIL-STD-704 products are suitable for far more than just military applications. However, because they meet this high military standard, you can be confident that these are power sources you can rely on in even the harshest, most extreme conditions. Some of the features you’ll enjoy with our MIL-STD-704 products include:

  • High voltage
  • Single or Three phase
  • Power factor correction
  • High power efficiency
  • Remote monitoring
  • Low noise

 

If you need high-quality AC-DC power supply solutions you can count on, you can’t go wrong with MIL-STD-704 products from ACT. If you’d like to learn more about the type of power supply products we offer and the various industries and applications you can use them for, or you’re interested in more detailed information about the MIL-STD-704 standard and the requirements for meeting that standard, feel free to contact ACT today. You can visit us online now or give us a call at 717-939-2300.