The Megger PULSAR Universal Protective Relay Test System represents the next generation in protective relay testing. This one-unit, modular system lets you select the testing capabilities you need now and expand as your requirements change. The PULSAR base unit includes the chassis, back plane, and input power and control module. The system is customized by adding a timer module and the number of current and voltage amplifier modules needed for specific testing applications. For example, adding the timer, one current amplifier module and one voltage amplifier module to the base unit provides a variable ac/dc current and voltage output, adjustable phase angle and frequency settings, and comprehensive control, timing and monitoring circuits. This configuration tests single-phase relays. Add up to three current and three voltage amplifier modules to create a full, three-phase relay test system in one portable unit.