25kW/915MHz Microwave Power Source

Specifications

     GMG-9025 25KW/915MHz

     Microwave Power Supply and Transmitting System

25kW/915MHz microwave power supply, which is designed by our company, is the high power magnetron power supply. Its voltage is high; power capacity is large; and requirement toward the related components, microwave transmitting & measuring system, and its protecting function is high. This power supply system is composed by controlling electric box and microwave transmitting system.

1. Anode Power Supply:

1) High voltage transformer

2) It adopts three-phase full-wave rectification to gain the anode high voltage. The anode loop employs various circuit protecting measures. The PLC control realizes the over current protection for the anode power supply, and the protections for the magnetron, power supply and coil ensure the reliable and steady operation of the testing power supply system.

2. Filament Power Supply: The filament transformer is configured with automatic pressure regulator. The secondary pole can be isolated by high voltage.

3. Magnetic Field Power Supply:

1) Automatic voltage regulator, full-wave rectification.

2) The feedback of controlling circuit for Magnetic field coil.

3) Magnetic field current possesses the protecting function for the undercurrent.

4. Controlling Power Supply Box:

   The operating demonstration of PLC control panel:

1)      Setting with power, digital display

2)      The modulating display of filament current, anode voltage & current, and magnetic field voltage & current.

3)      Over current alarm, over temperature alarm of the cooling water, and the alarm for scarcity of water.

4)      The physical dimension of microwave generator:

1250 (width) x 1000 (thickness) x 2000 (height) mm

5)Weight: about 430kgs

II. Waveguide Transmitting System (Optional parts)

Its components include:

1. 30kW/915MHz, WR975 high power 3 ports circulator
2. 30kW/915MHz WR975 manual operating three-stub tuner
3. 30kW/915MHz, WR975 high power water dummy load

III. Technical Parameters of the System:

1. The Technical Parameters of Magnetron:

1)       Operating frequency: 915MHz±15MHz

2)       Type: CK-611

3)       Filament voltage & current: Uf =11~13V, If = 115A

4)       Anode voltage & current: Ua = 12.5 kV, Ia = 2.4A

5)       Magnetic field coil current: Ic =4. 5A

2. The Working Parameters of the Magnetron

1)      Input Power Supply: 380VAC 50Hz, four wire three phase, content is 50kVA

2)      Total Consumed Power: 40kW

3)Cooling Water Flow: 8L/min (include the magnetic field coil)

4)Earth Resistance: <4 ohm

3. Three Ports Circulator: WR975 (optional part)

1) Load Voltage Standing Wave Ratio (VSWR): < 1.2

2) Attenuation: < 0.3 dB

3) Isolation: >23dB

4) Bearing Power Range: ≤30kW

5) Waveguide Flange Dimension: standard HD-FD9

6) Cooling Water Flow: 3L/min

4. Three-Stub Tuner: WR975 (optional part)

1) Adjustment Range of Load Voltage Standing Wave Ratio (VSWR): 1.1~ 30

2) Power Range: ≤30kW

3) Waveguide Flange Dimension: standard HD-FD9

4) Modulating Method: manual adjustment

    5. Water Dummy Load: WR975 (optional part)

1)      Load Voltage Standing Wave Ratio (VSWR): ≤1.10

2)      Bearing Power Range: ≤ 30kW

3) Waveguide Flange Dimension: standard HD-FD9

4) Cooling Water Flow: 3~20L/min