Three Phase Static Frequency Converter
The DOER DFC series three phase voltage and frequency converters are primarily used for applications where there is a need to simulate the various voltages and frequencies of mains electricity among countries. They are an ideal devices to be used in testing labs for research, marine, aviation, industrial equipment and equipment on production lines. With static frequency converters to deliver a predetermined output voltage and frequency, and are designed to enable the connection of 60Hz powered equipment to a 50 Hz supply, or 50Hz powered equipment to a 60Hz supply. It can also convert or change the supply voltage to 0-520V and frequency 50Hz to 499Hz.
- Wide Range of Power Ratings (3kVA to 1000kVA)
- Adjustable Output Voltage (0 to 520V) & Frequency: 40 to 200Hz (optional 200Hz to 499Hz associated with the power capacity)
- Galvanically Isolated with Pure Sine Wave Output
- Simple to use and Operation
- PWM IGBT Design
- Front Control Panel with Output Metering – Frequency,Voltage, Current and Power
- Fast Delivery: 15 -20 days
General Specification Datasheet of 3 Phase Frequency Converter
| MODEL NOS. | DFC-JD-FX or DFC-JD-VF |
|---|---|
| - Phase: | Three Phase, 4 Wire (3P+N+GE); 3 Wire Option |
| - Power Capacity: | 20 Model Ratings: 3kVA,6kVA,10kVA,15kVA,20kVA,30kVA,45kVA,60kVA,75kVA,100kVA,120kVA,150kVA,200kVA,250kVA, 300kVA,400kVA,500kVA,600kVA,800kVA, 1000kVA. |
| - Topology: | Sine Wave Pulse Width Modulated (SPWM) |
| INPUT | |
| Three Phase (Single Phase Optional): | Single Phase 100V-127V,220V-240V (L-N) or Three Phase 200V-240V,380V-480V (L-L) *Voltage Swing ±15%* *Select one voltage value* |
| - Frequency: | 50Hz/60Hz (40 to 70Hz optional) |
| - Rectifier: | 6 Pulse |
| - Power Factor: | 0.8PF |
| OUTPUT | |
| -Three Phase: | High Voltage: 0-520Vac (L-L) / 0-300V(L-N); Low Voltage: 0-260Vac (L-L) / 0-150V(L-N) |
| -Voltage Stability: | ≤±1% |
| - Frequency: | 50Hz / 60Hz Fixed; 40-499.9Hz adjustable as optional |
| - Frequency Stability: | ≤0.02% |
| - THD: | Harmonic Distortion:≤2 for Linear Loads; Pure Sine Wave |
| - Front Panel Display: | 4 Digital Display & Control Panel with Phase Selector (L-N voltage & L-L voltage metering switch) and On / Off Push Buttons |
| - Digital Metering: | Output Frequency – 4 Digit LED Display; Output Voltage – 4 Digit LED Display; Current Load(Amps): – 4 Digit LED Display; Load (Watts) or Kilo Watts -4 Digit LED Display. |
| - Overload Protect: | 110% for 15s, 2x max current rating within 1 second shut off |
| - Short Circuit Protect: | Output Cut Off Immediately (Input & Output Circuit Breaker Protection) |
| - Noise: | 1 meter 60db to 70 dBA (dependent on model rating) |
| - IP Rating: | IP20 / NEMA1 (Option IP54 / NEMA3 ) |
| - Size & Weight: | Dependent on model rating and configuration.( Please consult to seller ) |
| - Certificate: | CE. Reference Standards EN60204, EN61000 |
| - Warranty: | 2 Years / 24 Months from date of supply |
| -Working Temp.: | -10℃ - 45℃ |
| PHYSICAL | Power Connections:cables Input & Output (with bottom cable entry for floor mounted converter and converter with castors. With rear cable connection for rack mounted converter) |
Customized Option
- Top Cable Entry
- Enclosures fitted with 100mm plinth
- Remote Monitoring via RS485/RS232 (Modbus Protocol)
- Voltage Free Contacts: 1 volt free contact for status of the system output. NO/NC mode.
Special Notes
- When the output frequency is ≤120Hz, the frequency converter can supply 100% rated power capacity to the load application. The rated power capacity of frequency converter would be reduced to 50% when the frequency converter output 400Hz in need. Please consider our DFC-JD-400F* or DFC-CK-400F* for 400Hz Aviation and Military applications.
- Accept Output Frequency 40Hz to 1000Hz for tailor made, please consult to vendor for quotation individually.
Understand Power Sizing
Design Topology of Static Frequency Converter
The architecture of the system is reliable in design that help to increase personnel safety on site as well as improve overall system availability. Topology and working principle with IGBT SPWM technology, SFC typically follows an AC-DC-AC topology, comprising Rectifier and Inverter stages with isolation transformer and AC filter.This topology enables the SFC to provide efficient conversion and pure sine wave power to loads. AC-DC-AC conversion ensures clean output with low harmonic distortion. Robust control circuits enable precise frequency & voltage regulation, supporting diverse applications. The lightweight construction suits mobile installations. Adaptability to harsh environments.
