Solutions for sustainable aviation

400Hz

Electrical
Ground Power

400Hz

PV90-4

THE FOURTH GENERATION MOBILE ELECTRICAL GROUND POWER (MEGP) UNIT.

PV90-4

Features

Quick-Swap Power Module

Pluggable design allows fast on-site replacement to reduce downtime.

High Efficiency, Compact Footprint

Over 95% efficiency with 30% less space than previous models.

Universal 400Hz Compatibility

Fully compliant with ISO 6858 for use with all 400Hz aircraft.

PV90-4

Technical
Specifications

  • PV90-4
Input

  • Voltage: 400–480 V AC ±15%

  • Frequency: 50/60Hz (±10%)
Output
  • Voltage: 200 / 115 VAC

  • Frequency: 400 Hz (±0.001%)

Efficency
  • 95% 50 – 100% load at 0.8PF
  • 93% 25 – 50% load at 0.8PF
  • 90% < 25% load at 0.8-1PF
    Standby losses < 50W
Environmental Conditions

  • Operating Temperature:

    • -40°C to +56°C (-40°F to +132°F)

    • 60°C at average aircraft load

  • Humidity: 10–100%

  • Altitude: 2.000 metre (6560 ft) before derating

  • Noise Level: < 65 dB(A) @1m. Typically 60 dB(A)

  • Protection Rating: IP 55 – NEMA 3S

  • MTBF: 100,000 hrs / MTTR: 15 min
Dimensions & Standards

  • Unit with 28VDC Module:

    • Dimensions :1635x620x685 [64.4×24.4×27] mm [inches]

    • Weight: 538kg [1186lbs]

  • Standards: UL 1012, EN 61558-2-4:2009, EN 61000-6-4, EN 61000-6-2, DFS 400 (optional), ISO 6858, BS 2G 219, MIL-STD-704, SAE ARP 5015 & SAE AIR 5387, UFGS 26 35 43 & UFGS 26 35 44

Compatible Power & Ground Accessories

Associated with SideWinder, Skywinder, Pits…branded SMART POWER CONTROL

In situ

Product
Gallery

Jersey Airport

PV90-4 with 2 outputs (28VDC and 400Hz)

associated with our second generation of Sidewinder

Edinburgh Airport

18 PV90 associated with 12 sidewinders

energize new B737 Max and others perfectly

F.A.Q

Here you will find the most frequently asked questions from our users about 400Hz.
Why do aircraft require 400 Hz power on the ground?

Aircraft electrical systems are optimized for 400 Hz because higher frequency allows lighter transformers and generators—saving weight aloft. Providing ground power at the same frequency lets avionics, environmental controls, and galley systems run without using onboard APU or engines.

Is the PV90-4 compatible with every aircraft type?

Narrow-body jets (A320, B737, etc.): fully supported with a single 90 kVA unit.
Wide-body aircraft: often require two units in parallel to meet higher starting and continuous loads.

How many PV90-4 units do you need per gate?

For narrow-body operations, one PV90-4 per gate is sufficient.
For wide-body operations (A330, B777, etc.), two units are typically deployed side-by-side to share the load and ensure redundancy.

What are the operational benefits of a mobile 400 Hz GPU versus a fixed installation?

Flexibility: can transfer between gates or remote stands as traffic patterns shift.
Redundancy: if one unit fails, another mobile GPU can be dispatched quickly.
Cost savings: avoids capex on fixed transformers and reduces APU runtime, cutting fuel and maintenance.

Contact

Let’s talk

Have questions or need more information?
Contact Smart Airport Systems and let’s shape the future of sustainable aviation together.

Contact us
Daily CO2
saving
0.00 (kT)