Single phase 200K variable frequency power supply

1. Overview:
The intermediate frequency static power supply is designed and manufactured specifically for aviation and military electronic equipment. It adopts advanced and reliable high-frequency power electronic switch conversion technology, modular structure, good output waveform quality, and strong load adaptability. In the past, the use of generators for secondary frequency conversion resulted in high noise, poor stability, low efficiency, and large size, gradually being replaced by medium frequency static power supplies. Medium frequency static power supply is widely used in military electronic equipment that requires 400Hz AC power, such as aircraft manufacturing and maintenance, airborne equipment, radar navigation, etc. In addition, the intermediate frequency converter power supply is equipped with high-precision voltage, current, power, and frequency display meters, integrating the source and meter, and has a high cost performance ratio Adopting Siemens original high-power IGBT module group design, reducing circuit complexity, improving product stability, reducing power loss, and continuously increasing single machine capacity. In addition, multiple ultra isolation transformers completely isolate the mains and load to increase the overall functionality of the machine.
This power supply inputs the voltage and frequency of the AC power grid, and after internal inversion conversion from AC to DC and DC to AC, it generates a very stable and pure sine wave on its own.

2. Choose the capacity method:
Pure resistive load power supply capacity=1.1 × load power
Rectifying load power supply capacity=load current peak coefficient/1.5 * load power
Pure inductive load power supply capacity=load starting current/1.5 * rated current * load power

3. Product Model Description

4. Technical indicators (conventional products):

Single phase series:

Three phase series:

5. Installation precautions:
1. Does the model of the intermediate frequency static power supply match the ordered model and capacity.
2. Has the intermediate frequency static power supply been damaged due to improper transportation. If there is, please do not connect the power supply.
Before inputting power into the power cord, the power specifications should be determined first to avoid damage to the intermediate frequency converter power supply.
4. Due to differences in capacity and input voltage, intermediate frequency static power supplies have different installation standards. Please choose the appropriate wiring method based on the capacity and input voltage, and pay special attention to whether the wire diameter meets the specifications.
5. When wiring, please refer to the "Electrician Regulations" for selection. Pay attention to the input terminal of the intermediate frequency converter power supply, avoid sharing the same switch with other devices, and try to be as close as possible to the mains power supply head.
6. Please use O-type terminals for wiring terminal construction. When wiring the input and output terminal blocks, be sure to connect the power cord and tighten the screws to avoid poor contact and prevent electric shock.
7. Please turn off the power when wiring, and it is strictly prohibited to work with live wires. Pay attention to safety.
8. When wiring, pay attention to whether all terminal plugs and sockets are loose to avoid the danger of poor conductivity.

6. Panel Description:

Schematic diagram of power panel

Description of Analog Medium Frequency Static Power Supply Panel
Note: When performing the following operations, first close the air switch.

7. Operation steps:
1) Confirm whether the input power supply is within the specifications (see page 8 of the technical parameters of this machine for details).
2) Power on
Close the input/output circuit breaker/power switch, and the LED display will be in standby mode.
Press the START/STOP button. If voltage is required, there is no need to adjust the voltage knob. If voltage is not required, adjust the voltage knob. When the desired voltage is reached, turn on the output air switch and the output indicator light will turn on; The digital display shows the output voltage, output current, output frequency, load power, and power factor. If the power supply is used for the first time, please use an external voltmeter to check whether the voltage at the output terminal is consistent with the displayed value on the panel meter, and confirm before adding the load.
● Frequency modulation: The frequency of this power supply is set in two ways: 1) Fixed frequency mode: The reference frequency is obtained by dividing it by a crystal oscillator,
Good stability, fixed frequency 400Hz, 2) FM mode can be selected through switch: first, turn the frequency switch to the leftmost end, and then adjust the "FM" knob to adjust the output frequency to the desired value. The positions of the toggle switch and frequency knob can be found on the control panel.
During operation, the machine may emit slight high-frequency sounds, which is a normal phenomenon.
3) Shutdown
When the START/STOP button is pressed, the inverter stops working and the machine stops outputting. During operation, if a malfunction occurs, the internal protection circuit will automatically shut down the inverter, stop outputting, and issue an audible and visual alarm.
If the machine is not in use for a long time, please disconnect the input circuit breaker/power switch.
Note:When turning off the power, first press the START/STOP button, and then turn off the input circuit breaker.

8. Common troubleshooting:
This machine is only for maintenance by electricians Please pay attention to the internal high voltage. Non professionals are not allowed to open the machine door for maintenance without authorization.
When the machine cannot operate smoothly, please shut it down first and check the following steps:

9. Technical parameters of this machine:
1. Input: Capacity: 2KVA
Voltage: AC220V Frequency: 50Hz
2. Output:
Voltage: AC 0V-150V Frequency: Fixed frequency 400Hz Frequency modulation 300-500Hz
Voltage stability accuracy: ± 0.5%
Frequency stability accuracy: ≤± 0.1%
Waveform distortion: ≤ 1.2-3%
3. Overload capacity: Strong overload capacity, capable of withstanding 1.2 times the rated current in an instant
4. Protection: equipped with overcurrent, high temperature, short circuit, instantaneous power failure protection and warning devices
5. Working conditions:
Environmental temperature: -10 ℃ to 50 ℃
Relative humidity: ≤ 90% (25 ℃)
6. Operation display mode: Voltage (V), Frequency (Hz), Current (A), Power (W) 4 window measurement display
7. Applicable load: No type limitation, can adapt to completely unbalanced loads, but the motor and rectifier loads need to be rated for application

after-sales service
1. Our company's products are free of charge for one year of repair. If there are quality problems with the products during the warranty period, our company is responsible for free repair. If the warranty period expires, our company is still responsible for product repair, but we will charge corresponding repair costs.
2. Our company provides long-term technical tracking, maintenance, and services.
3. Our company can accept orders with special requirements.