Aviation Ground Power KATO Motor-Generators

400Hz Motor Generator Systems
Product shown: 400Hz Aviation Motor Generator System

Aviation Ground Power KATO Motor-Generators


Our customers rely on the reliability, durability and quality of the Kato Engineering 400Hz Motor-Generator set design. Backed by over 85 years of experience, Kato MG sets were the first rotating product Kato Engineering manufactured back in 1926 and have evolved over the years to meet our customer’s special requirements and power demands of the aviation industry.

Kato Engineering’s 400Hz MG sets supply conditioned and converted generator power. Inputs are available for both 50Hz and 60Hz. Power capacities range from 25 kVA to 400 kVA. When utilizing multiple paralleled MG sets, the power capacities are limitless.

400Hz MG customers include; commercial applications (airports and aircraft manufacturing), military (flight decks, global Air Force bases, tethered missile detection), as well specialty applications including radar and 400Hz testing


Advantages & Features

  • Made in the U.S.A.
  • Proven technology backed by 85 years of experience.
  • Long standing life cycles in excess of 100,000 hours.
  • Low maintenance cost.
  • 12” Touch Screen, Human Machine Interface (HMI).
  • Ethernet/IP communications standard.
  • Low harmonics.
  • Protective relays.
  • Transient spike protection.
  • High overload capacity.

Standard Models

Voltage

kW

kVA

200-208

75

93.75

200-208

144

180

575

144

180

575

250

312

575

320

400

575

400

400

MG Set

Speed: 1200 RPM
Efficiency: See table below
Duty Cycle: Continuous
Overload: 110%, 2/24 hours
Temperature: 95°C rise/ 40°C ambient
Insulation: Class H
Excitation: Brushless synchronous
Construction: Open dripproof enclosure for rotating part. Common frame single-shaft two-bearing horizontal construction for low vibration and ease of maintenance. Stator built with silicon electrical steel laminations. Coils are film-insulated copper wire vacuum-pressure impregnated with a Class H insulation system. Rotor is laminated steel with field winding of insulated copper wire, impregnated with 100% solids resin. Bearings are re-greasable antifriction with grease fittings accessible while running.

Motor Component

Type: Synchronous
Poles: 6
Frequency: 60Hz
Phase: 3
Connection: Wye
Voltage: 480V
Power Factor: 1.0 nominal
NEMA Code: “A” in S-P start
Inrush Amps: See table below
Starts/hour: 2 (1 cold/1 hot per NEMA MG-1 21.13.1)
Transient: Per table below

Generator Component

Type: Synchronous
Poles: 40
Frequency: 400Hz
Phase: 3
Connection: Wye
kVA and kW: See table below
Voltage: See table below
Power Factor: 0.8
Voltage Balance: 1% with balanced load (MIL-STD-704F), 4% with 33% unbalanced current
Waveform: 3% max. T.H.D., 2% max. individual harmonic w.r.t. fundamental, linear load
Transient: See table below

Controls Component

Enclosure: NEMA 1 steel mounted on top of the M-G set. Cable entry through top.

 

Generator

Voltage

 200-208

 200-208

 575

 575

 575

 575

Rated kW

 75

 144

 144

 250

 320

 400

Rated kVA

 93.75

 180

 180

 312

 400

 400

Transient

 

 

 

 

 

 

    0-50% load

 -9.0%

 -8.0%

 -8.0%

 -7.0%

 -12.5%

 -8.3%

        Sec to 95%

 0.150

 0.150

 0.050

 0.260

 0.260

 0.150

    0-100% load

 -18.0%

 -16.0%

 -16.0%

 -14.0%

 -22.5%

 -15%

        Sec to 95%

 0.150

 0.150

 0.150

 0.320

 0.320

 0.150

    50-0% load

 11.0%

 10.0%

 10.0%

 8.0%

 13.5%

 9%

        Sec to 105%

 0.160

 0.160

 0.160

 0.260

 0.260

 0.160

    100-0% load

 22%

 20%

 20%

 16%

 28%

 20%

        Sec to 105%

 0.160

 0.160

 0.160

 0.320

 0.320

 0.160

Motor

HP at Gen FL

125

210

210

360

470

560

Amps at FL

 116

 205

 205

 355

 445

 550

A-Series start

 185

 390

 390

 750

 850

 900

    SkVA/Hp (ser)

 1.3

 1.5

 1.5

 1.6

 1.5

 1.3

Code letter

 A

 A

 A

 A

 A

 A

MG Set

Efficiency at P.F.

 

 

 

 

 

 

    @ 2/4 Load

 80.6%

 82.3%

 82.3%

 82.0%

 84.0%

 85.2%

    @ 4/4 Load

 81.2%

 84.5%

 84.5%

 86.0%

 87.0%

 89.0%

Paralleling

 No

 No

 No

 Yes

 Yes

 Yes

  • Audible Alarm: Provides audible indication of monitored failures at the M-G. Includes alarm-silence control.
  • UL Listed: UL-508 Industrial Control listing.
  • EMI suppression to Mil 461C, Class C2 UM04, part 9 (or equivalent latest revision) on panel but not tested.
  • Sound Attenuation Enclosures
  • Trailer Mounted
  • Weather-proof enclosures with forklift and crane lift provisions.
  • Coastal insulation protection (CIP) system: This system includes an asphalt epoxy application and curing process on the exciters. Once cured, asphalt epoxy is very difficult to remove even by sanding and machining making this material appropriate protection material for coastal and for more rigorous environmental applications.