This series of solid-state frequency changers are small and lightweight in design, saving critical panel space and money because they can provide up to 50% more power density and weigh nearly one-third less than most competitive models. This model series is ideal for general purpose test applications, as well as ATE systems and avionics testing. Some of the features include: • Compact, Lightweight • Programmable via the IEEE 488 General Purpose Interface Bus (GPIB) • Programmable Current Limit - Automatic Shutdown and Reporting • Continuous Duty at 150% of Rated Capacity • Overload and Over-Temperature Protection • Three Output Voltage Ranges • Available in 9 Models -1,2, and 3 Phase Each unit allows incorporation of custom functions without resorting to special designs. These power sources provide AC power at precise frequencies for testing, motor operation, and frequency conversion. The basic power source consists of two DC supplies and a direct coupled amplifier which drives a tapped output transformer. The output voltage ranges are: • 0 to 65 VAC; • 0 to 130 VAC; and, • 0 to 260 VAC. Output power at full and at less than full rated voltage is depicted in the derating chart illustrated in Figure 1-1. Figure 1-2 represents a typical harmonic distortion curve. The Model 1001 SLE/1751 SLE AC Power Sources are configured for a 230 VAC, ±10%, 47-63 Hz, single-phase input power only. There are no other standard input voltages available.