EAK solid carbon resistors offer unmatched performance in high energy and high voltage applications. These non-inductive ceramic composite resistors are designed for pulse shaping, crowbar, capacitor charge and discharge. Any application that requires low inductance as well as extreme voltages and energies. They are ideal for use in pulsed power systems where these resistors distribute the energy evenly throughout the structure to achieve low thermal stress. Standard high-temperature silicone coatings enhance high-pressure performance in the air. Optional configurations optimize the performance of other gas or fluid dielectrics.
With sustaining energies ranging from joules to megajoules and frequencies up to megahertz, solid carbon resistors can be used in the most demanding applications such as power transmission, traction, AC DC drives, pulsed power, virtual loads, induction heating, and pulse-forming networks.
Power Dissipation: The heat generated by high-energy disk resistors is dissipated primarily through radiation and convection in exposed surface areas. In restricted areas, mathematical models can be used to estimate heat transfer. Higher power consumption can be achieved by conduction cooling via one or two mounting surfaces: air radiators and water cooling radiators.
EAK solid carbon resistors are most commonly used for low repetition rate discharges, crowbars, pulse shaping, or other pulse loads. In practice, a single resistor disk or combination is often chosen to produce the expected applied energy of no more than 100°C. Due to the larger mass, a relatively long cooling time is required between pulses, or additional heat capacity must be allowed.
High surge energy rating.
High withstand pressure. Wide range of non-induced resistivity.
Air Oil SF6 Environment.
Monolithic or modular components.
The continuous power dissipation of EAK solid carbon resistors depends on the installation method used. In free air, 25 watts per square centimeter of exposed surface area is a conservative rule of thumb. Thus, a 50mm disc, with both the front and periphery exposed, can easily dissipate 20 watts. Air-cooled or water-cooled radiators are applied to single or double-sided through conduction cooling of the mounting surface, resulting in higher power dissipation.
Impulse voltage: The maximum impulse voltage is mainly related to the resistance value and pulse width, followed by the surface temperature and dielectric as a function of the dielectric. The diagram below shows normalization 1 in air2 Maximum impulse voltage range with a pulse width of 50 sec.