Solar 7054-2 EMI Voltage Spike Generator

The Solar 7054-2 EMI Voltage Spike Generator is a 600 V spike generator that fulfills testing requirements for method CS06 of MIL-STD-462, Method 5006.1 of MIL-STD-826A and more. Designed for use in applying high-voltage transients at power line inputs to electronic devices, Solar 7054-2 generators accurately determine the threshold of immunity to spikes that appear on the power line. Dual output power terminals allow for parallel or series injection into DC or AC power lines respectively. In conjunction with the Solar 2201-1, 2201-2 and 2201-3 impedance matching transformers, Solar 7054-2 spike generators meet DO-160 Section 17.

The peak amplitude of the Solar 7054-2 Voltage Spike Generator is adjustable from 10 volts to over 600 volts into 5 ohms. The source impedance is less than 0.5 ohm. The transient shape approximates the curve given in Figure 19 of MIL-STD-462. Less than one microsecond rise time and approximately 10 microseconds fall time.

On 50, 60 or 400 Hz power lines the transient can be applied in a periodic manner to the negative or the positive half-cycle of the power frequency. The transient’s relation to the sine wave may be adjusted in phase from 0° to 360°. For non-synchronous injection on either a.c. or d.c. lines,the repetition rate can be adjusted from 0.8 p.p.s. to 10 p.p.s. Single transients can be applied with the pushbutton on the panel.

Two sets of output terminals allow either parallel or series injection into the power line. Series injection may be used on d.c. and a.c. lines. Parallel injection is used on d.c. lines only. The output winding used for series injection can carry 25 amperes of power current. The output terminals are isolated from the chassis and the power cord.

Fig. 3 - Transient Shape into Five Ω Load required by MIL-STD-461A/462

Solar 7054-2 Application

The Solar 7054-2 Spike Generator was especially designed for screen room use in applying high voltage transients at power line inputs to electronic equipment. The adjustable amplitude makes it possible to determine the threshold of susceptibility to spikes appearing on the power line. The Model 7054-1 may be used for performing tests per Method CS06 of MIL-STD-462, Method 5006.1 of MIL-STD-826A, RTCA D0160D (with impedance matching transformer) various missile specifica-tions and others.

Fig. 1 - Parallel Injection on DC Line

 

Fig. 2 - Series Injection on AC Line

 

Special Models

Solar Model 7054-2A Waveshape falls to zero in approximately 50 µS. Provides 400 V peak into 5 Ω load. Handles 15 A power current. Solar Model 7054-2B Waveshape falls to zero in approximately 120 µS. Provides 400 V peak into 5 Ω load. Handles 10 A power current.