MG30-3C-100NF
1.8 kJ 600 kV
 
Key Parameters
• 600 kV open-circuit output voltage
• 110 ns risetime
• Requires only pressurized air and 3-phase line    power
• 5 GW peak power to matched load
APELC MG30-3C-100NF General Specifications
Symbol Parameter Value Units
L
Length
1.25
m
D
Diameter
50
cm
Wt
Total Weight
170
kg
N
Number of Stages
30
-
Ve
Erected Voltage
600
kV
Vch
Maximum Charge Voltage
20
kV
Pmax
Maximum Peak Power
(matched load)
6
GW
Cstage
Capacitance Per Stage
300
nF
Ce
Erected Capacitance
11
nF
Ls
Series Inductance
1000
nH
Zsource
Source Impedance
10-15
Ohms
Charging elements type
  
Inductive
Output capabilities
  
Vacuum interface and resistive dummy load
Voltage output monitor
  
D-dot capacitive voltage probe (SMA)
Current output monitor
  
Rogowski coil current probe (BNC), CVR (BNC)
Technology Summary
The specifications of the APELC Marx Generator system are well beyond our conventional Marx generator capabilities. Typical APELC systems employ ceramic doorknob-styled capacitors. Ceramic doorknob capacitor-based designs result in a 200 J/pulse generator. The APELC Marx Generator present mica film-based design results in a much higher energy density of approximately 1.8 kJ per pulse.
The novel compact geometry of the APELC Marx Generator allows off the shelf components to be used in production which substantially lowers the production costs. Additionally, the APELC design requires only pressurized dry air for operation and an AC outlet for extended duration operations. The minimal user facility requirements minimize the operating cost of the system (e.g. lack of an oil circulation system) and allow for operation on a variety of platforms.
The APELC Marx system has a diameter of 50.8 cm (20 inches). Three 100 nF capacitors (20 kV charge voltage) are used in parallel to achieve the desired per stage energy density. By paralleling capacitive stages (2 per linear stage), the overall length is compressed by a factor of two compared to Marx systems of comparable energy.

The junction between the diagnostic module and load module contains:
(A) the Twelve-inch Conflat interface and (B) the coaxial finger-stock load resistor connection.

Load voltage pulses for various load resistances for a Marx charge
voltage of 10 kV and Marx air pressure of 16.5 PSI. Load resistor tolerance is 10%.

Ring down current pulse with Marx charged to 10 kV and terminated
directly through the CVR module with no load resistor.

Suggested Peripherals
System Requirements
Contact APELC
RG-220, 50 ohm coaxial cable
150 psi dry air source
Phone: 512.264.1804
Inline, coaxial Current Viewing Resistor
110 VAC (optional)
Fax: 512.264.1784
Inline, coaxial Current Viewing Resistor
Integrated APELC pressurized load module part number