Greencisco Industrial Co., Ltd.
Motor Generator Set(Rotary Frequency Converter)
Rotary frequency converters (Motor Generator Set )with 50Hz to 60Hz,60Hz to 50Hz,50Hz to 400Hz,60Hz to 400Hz for shipyards,Navy,power substations,airports,ports,ect.
Application
Shipyard,shiprepair,dock,port,airport,oil companies, Navy, Aviation, power substations, Factories, Motor Manufacturer, Scientific Research, EMI/EMC/safety test,QA/QC safety test, Electric machinery test,switching power test, transformer test,compressor test,motor test,air conditioner test,electrical appliances,400HZ converters for military diagnostic system,airport grounding stations,avionics,instruments,ect.
Introduction
Rotary Frequency Converter (Motor Generator Set) consists of a 4-pole induction motor and a 32-pole generator. The motor and the generator are mounted on the common shaft (integrative mounting) and operate at the speed of precise 1500rpm. The products are designed for the applications which require a clean & accurate 400Hz power output converting from the 50Hz grid line.
The Rotary Frequency Converter have prominent technical advantages on precise frequency output, low operation noise, reliable excitation, precise voltage regulation, outstanding voltage waveform, compact size, easy operation and no radio interference. They also have the high overload capability, best transient characteristics and rugged fabrication, which make them suitable for the applications where continuous service in a harsh environment is required.
Rotary Frequency Converter can be mounted with a weather-proof enclosure, an acoustic-attenuated canopy or a trailer.
Specification

Model No.

RFC50/400-10B

RFC50/400-20B

RFC50/400-30B

RFC50/400-40B

RFC50/400-50B

Capacity

10KVA/8KW

20KVA/16KW

30KVA/24KW

40KVA/32KW

50KVA/40KW

Rated input
frequency of motor

50HZ

Pole count

4 poles

Rated speed

1370RPM

Rated voltage

3-phase 380VAC/400VAC/415VAC/440VAC/460VAC

Winding connection

Wye +Delta

Rated current

30A

43A

58A

72A

104A

Excitation mode

Automatic self excitation with AVR control

Steady voltage regulation

Within ±1%(0 to 100% steady state,balanced,linear load)

Transient voltage regulation

Within ±12%(0 to 100% rated load applied or removed in one step)

Voltage recovery time

0.1s

Harmonic distortion

THD2.5%,single harmonic 2.0%

Motor type

Induction motor

Motor capacity

15KW

22KW

30KW

36KW

55KW

Output frequency of generator

400Hz

Rated speed

Precise 1500RPM

Pole count

32 poles

Rated voltage

3-phase 208VAC/380VAC/400VAC/415VAC/440VAC/460VAC

Rated current of generator

27.8A

55.5A

83.3A

111A

139A

Winding connection

WYE

Power factor

0.99

Efficiency

90%

Excitation control

Automatic excitation with control

Starting mode

Soft-starting

Max.starting current

1.5 times of rated current

Frequency regulation

Within ±0.1% from no load to full load

Rated system power

10KVA/8KW

20KVA/16KW

30KVA/24KW

40KVA/32KW

50KVA/40KW

Power factor

0.8

Duty cycle

continuous

Insulation

Class H

Protection

IP23

Operation noise

55db

Mounting structure

The motor and alternator are mounted on the single shaft

Overload capcity

110% rated load for 1 hour continuously

Temperature rise

No more than 90 rise in ambience 40

Ventilation

Shaft-mounted fan

Motor balancing

G1.0 grade

Ambient temperature

(-)15 to 40

Altitude

1000m

Relative humidity

95% with no condensation

Compliance

GJB1213;MIL-STD-704F;IEC60034-1

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