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Benefits & Features

The Power Coil is a compact light weight adaptable design allowing flexible installation
options. It can be floor mounted, overhead mounted or mounted on a trailer or castors.

  • NFPA 70 Article 500 Class 1 Div. 2 compliant with 18” Floor Stand
  • Overhead mounting of the Power Coil eliminates occupation of valuable floor space required by traditional cabinet style power supplies and cable rack/reel installations.
  • Trailer mounted units are compliant with SAE AS8090 Type 1 Class 2 requirements.

AN ALL-IN-ONE APPROACH FOR PROVIDING GROUND POWER

Traditionally, a ground power system consisted of several separate elements; the Power Supply, a Cable Storage Rack or Reel, Interconnection Cables and Aircraft Cable, all supplied by different manufacturers. These elements would then have to be integrated, installed, and tested on-site as a complete system. The 400 Hz Power Coil provides a complete fully integrated and tested system which is ready to install as delivered.

SYSTEM DESIGN

The 400 Hz Power Coil is a solid-state Power Supply and electro-mechanical chain driven cable drum integrated into a single cabinet. The Power Coil’s fully integrated design eliminates the need for expensive unreliable slip rings, providing better performance and requiring less maintenance than traditional cable reels. The system includes a 66 ft. (20 m) aircraft cable. The motorized cable drum extends and retracts the aircraft cable eliminating the physical burden usually associated with wrestling aircraft power cables. The frequency drive control provides smooth rpm ramping, less mechanical stress, scuffing, and damage to the aircraft cable.

Power Coil 400 Hz

PERFORMANCE FEATURES

Proven Design:

  • Meets and Exceeds MIL-STD-704F
  • requirements
  • Output Voltage Regulation <1%
  • Total harmonic content <0.015%
  • 12 Pulse front end
  • Soft Start feature eliminates in-rush current
  • Integrated powered cable reel that holds
  • 66 feet (20.117 meters) of cable
  • 400 Hz individual phase control
  • Auto-calibration for balanced output voltage at cable head
  • Cable reel and 400 Hz control on cable head
  • Reconfigurable to 270 VDC

Easy to Operate:

  • Remote Control Station with Pushbutton Controls, On/Off, Cable In/Out
  • Motorized Cable Drum eliminates “cable wrestling”
  • Easy to read Digital Information Display
  • Modular Design allows for ease of Maintenance
  • BIT: Digital Diagnostics aid troubleshooting

Technical Information

INPUT POWER

  • Rated current: 94 amps ±15% @ 480 VAC, 60 Hz

OUTPUT

  • Power: 90 kVA @ 0.8 pf Lag
  • 115/200 V – WYE, ABC-N
  • Frequency: 400 Hz ± 0.1%
  • Power factor: 0.5 lag to 0.9 lead
  • Voltage regulation: <1%
  • Transient performance exceeds MIL-STD-704F
  • Crest factor: 1.414 ±3%
  • Overload Rating:

  • 110% for 60 minutes
  • 125% for 5 minutes
  • 150% for 2 minutes
  • 200% for 20 seconds
  • 300% for 6 seconds

EFFICIENCY

  • 12 pulse Front End
  • Overall efficiency:
    >0,93 at 35-90 kVA load
    >0,90 at 25 kVA load
  • No load loss: <2 kW

PROTECTION

  • No break power transfer
  • Over/under voltage: Input and Output

 

  • Overload
  • Short circuit
  • High temperature
  • Internal system error

MISCELLANEOUS

  • MTBF (Proven): 100,000 hours
  • MTTR: max. 20 minutes

ENVIRONMENTAL

  • Operating temperature: -40°C to +55°C
  • Relative humidity 0—95%
  • Airborne Noise <65 dba @ 1m - typically 60 dba

CABLE/CONNECTOR

  • Highly flexible cable harness for power transfer from Power Supply to Aircraft Cable
  • 66’ (20 m) 400 Hz aircraft cable

MOTORIZED CABLE DRUM SYSTEM

  • Aluminum cable drum w/spiral cable race
  • VFD Drum Motor Speed Control
    (reduces drum speed for final 12’)
  • Stainless steel cable roller guide
  • Fully Extends and Retracts Cable in 1 min. 10 sec.
  • Drum Motor Overload Protected

 STANDARDS/SPECIFICATIONS

  • MIL-STD-704F Aircraft Electric Power Characteristics
  • MIL-STD-704E Aircraft Power Characteristics
  • NFPA 70 Article 500

OPTIONS

  • External Emergency Stop
  • Remote Control Box
  • 6 pulse Front End
  • 18” Floor Stand
  • Trailer per SAE AS8090
  • Auxiliary Power Outlets, 60 Hz or 400 Hz
  • 400 VAC/50 Hz Input

EMI HARDENED

  • EMI Gasketing
  • Screen Filter for Display
  • EMI Input/Output Filters
  • EMI Power Input/Output Filters

 

 


 

Information Downloads

Model IES File Spec Sheet
Power Coil 400 Hz Specs   pdf