Dummy Loads
Dummy loads permit testing of pulsed power systems under known load conditions.
These devices are coaxial-cable fed and represent a nominal impedance of 50 Ohms
to the pulse source. This load impedance is predominantly resistive with a minimum
reactive component. The internal construction consists of a stack of ceramic
toroidal resistors and hv terminal housed in a polycarbonate tube. This assembly
is grounded to the cover using continuous pressure from a spiral-wave spring at
the base. To increase the operating voltage, the surrounding void as well as the
resistor stack can be filled with a dielectric medium. A quick-disconnect fitting
and purge valve allow filling with the recommended internal dielectric medium (not
supplied). A 2-m (6') length of cable is provided with each load; the load end is
fitted with our reentrant connector while the
other end is unprepared for interface to the user's pulser. Note that these loads
are for single pulse applications only and are not intended for repetitively pulsed
usage.
Standard Dummy Loads
| Model |
Maximum Voltage, kV |
Resistance, Ohms |
Maximum Pulse Energy, J |
Internal Dielectric Medium |
Cable Type |
|---|
| DL-101 |
40 120 |
50 |
1200 |
Air SF6 |
RG-218/U |
| DL-102 |
400 |
50 |
6000 |
Oil |
RG-218/U |
| DL-102C |
500 |
70 |
8400 |
Oil |
DS-2134 |

Model DL-101 (7.2 cm diameter x 25 cm height)
|

Model DL-102C (8.9 cm diameter x 30 cm height)
|
The DL-102 load is typically used with our smaller
mini-Marx generators.
Much larger dummy loads based upon our aqueous-electrolyte resistor technology are possible,
e.g., the DL-104 system employed with our MV-1 Marx generator.
Pricing for standard dummy loads may be obtained from the links given on our
Sales page. Specifications are subject to change without notice.
Inquiries for additional product information are welcome!
Last revision: 20 August 2007
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