SMC PTE 100 C Single Phase Current & Voltage Relay Test Equipment The PTE-100- is designed as powerful, rugged and flexible tools for the wide diversity of maintenance jobs in substations and transformation centers. Both feature a 1000-VA voltage regulator and highly accurate digital instruments that provide the quality and effectiveness required for in-field testing of power-demanding electromechanical relays, as well as static, digital and the most sophisticated multi-functional numerical relays where precision and ease of use are essential. Digital chronometer, auto range ammeter and voltmeter, as well as four adjustable current output taps, AC and DC voltage outputs, auxiliary DC source, automatic overload an thermal protections, PC communications and a comprehensive set of external measurement functions are just a few of the most outstanding features that we have packaged for you in a compact, robust and lightweight piece of equipment that is being used by industry professionals in more than 55 countries worldwide. Besides the 1000-VA output featured by the three models, the Plus and Pro versions include an independent AC voltage source that can be adjusted in amplitude, frequency and phase angle to further extend the comprehensive number of protection relay types that can be tested. Existing PTE-100-C units can be easily upgraded to a Plus or a Pro by just installing the optional PTE-FCL or PTE-FCN modules respectively into the unit?s lid in a few minutes. The PTE-100-C?s design is mainly appreciated for its unbeatable manual testing characteristics. However, a number of software products for Windows? is available to attain a certain degree of automation and assistance in the testing and reporting tasks. Apart from the standard RS-232 communications port, every test set in the PTE range features the EuroSMC?s exclusive BUS-PTE? integration bus that allows them to be interconnected to further extend their applications field.