Frequency Converter

High Power Frequency Converters

Statcon Energiaa’s Rotary Frequency Converters are designed to meet the rugged but specific AC power requirements in different frequency ranges. It can be used to convert 50Hz/60Hz into any other frequency of50Hz/60Hz/100Hz/200Hz or 400Hz.

 

The Rotary Frequency Converters (RFCs) are designed and manufactured using the company’s rich experience in Rotary Machine Controllers, Power Electronics and Ground Power Unit. It uses DC motor with digital control for the prime mover while brushless alternator is used to get AC output of a desired frequency and voltage.

 

Statcon Energiaa’s RFCs are available in both fixed skid mounted as well as wheel mounted trolley. It is also supplied with suitable cable and aircraft connectors.

 

The laminated Yoke DC motor is driven through precision SCR controlled DC drive. In order to get high degree of frequency stability, high accuracy tachogenerator is used whose feedback is used to get very accurate speed control as well as fast transient response in case of sudden loading (say jerk load) of the RFC.

 

Similarly, modern state-of-the-art electronic Automatic Voltage Regulator (AVR) is used to get AC voltage regulation of RFC output. It also gives fast transient response of output voltage against transient loading.

 

Both rotary pans i.e. motor and alternator are lightly coupled and they are provided with anti vibration pads to reduce vibration.

 

The control and monitoring display uses microprocessor controller based circuit, which helps in accurate sensing and monitoring of the output parameters. There is a Provision to set the tripping levels of voltage, frequency and overload with respect to the pre-filled time interval for protection and alarm annunciation.

TECHNICAL SPECIFICATION
Input Voltage 415V±10%, 50Hz/60Hz, 3 Phase AC
Output Power 10KVA to 180KVA (other ratings available on request)
Output Voltages 415V/210V/115V(other voltages on request)
Output Frequency 50Hz /60Hz /100Hz/200Hz/400Hz
Frequency Stability ±1%from No load to Full load
Operating Temperature -20 °C to +55 °C
Voltage Regulation ±1% for 10% to 100% load change
Harmonic distortion <3% THD
Crest Factor 1.414 ± 3%
Overload 125% for 10 minutes
150% for 1 minute
Max . Voltage imbalance Max,2V between phase to phase
Transient Response As per MIL standard 704°
Type of output connector Bus bar type terminals or through 6 pin NATO with suitable cable
Type of enclosure Skid mounted or Trolley mounted
Note : Parameters given above are standard and can be changed without any prior intimation.
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