Greencisco Industrial Co., Ltd.
Rotary Frequency Converter
Frequency converters from 30KVA to 1000KVA for shipyard,shiprepair,dock,port,oil company,airport,Navy,ect.
Application
Shipyard,shiprepair,dock,port,airport,oil companies, Navy, Aviation, Lab, Factories, Telecommunication, Medical, IT, Motor Manufacturer, Scientific Research, EMI/EMC/safety test,QA/QC safety test, Electric machinery test,Superior power for laboratory,switching power test, AC fan test,transformer test,compressor test,motor test,air conditioner test,copier equipment test,computer/scanner test,SCR test, electrical appliances,electronic ballast test,400HZ converters for military diagnostic system,airport grounding stations, avionics,instruments,ect.
Introduction
Rotary Frequency Converter consists of a 12-pole brushless synchronous motor and a 10-pole synchronous generator. The motor and the generator are mounted on the common shaft (integrative mounting) and operate at the speed of precise 600rpm. The products are designed for the applications which require a clean & accurate 50Hz power output converting from the 60Hz 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.

RFC60/400-90

RFC60/400-120

RFC60/400-150

RFC60/400-200

RFC60/400-250

Rated input
frequency of motor

60HZ

Pole count

6 poles

Rated speed

1200RPM

Rated voltage

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

Winding connection

Wye with neutral

Rated current

138.9A

181.8A

213.2A

281.1A

361.4A

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

Brushless synchronous motor

Motor capacity

96KW

128KW

150KW

200KW

220KW

Output frequency of generator

400Hz

Rated speed

Precise 1200RPM

Pole count

40 poles

Rated voltage

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

Rated current of generator

249.9A

333.1A

416.4A

555.2A

694A

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

90KVA/72KW

120KVA/96KW

150KVA/120KW

200KVA/160KW

250KVA/200KW

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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