The PME-500-TR is an extraordinary forward step in the concept of circuit breaker test equipment, due to its simple and easy control method. The equipment saves time and improves testing productivity.
The control of the equipment is by a touch screen panel. This allows test parameters to be entered and gives a visual display of the test results in graphic and numeric format. A built in thermal printer enables test results to be printed immediately
Rather than just displaying a single result in micro Ohm, the Prime 600 can, upon user’s selection, perform a series of measurements very quickly across a fast moving contact, like those found in circuit breakers. The result is in this case a time / resistance graph that describes resistance changes on the measured spot throughout a few milliseconds. While requiring extreme accuracy and ultra fast recording from the Prime 600’s micro processor, this technique provides a very representative evaluation of the contact’s condition without having to open the chamber.
- The LET-2010-RD is designed to perform most of the primary tests that are necessary in substations commissioning. It allows to perform with sufficient power, all the primary current injections to test the proper function and wiring of all the elements that compose the protection and measuring section in a substation.
- The regulation system is based on a continuously variable
autotransformer (Variac) that supplies to a power transformer that delivers the high current outputs and isolate the main supply from the load
The LET-4000-R is designed for high DC current injection, used mainly in the railway industry to test extra fast relays protecting the locomotive’s DC motors. The set is split into two modules: the AC Regulation and Measurement Module and the AC/DC converter. The first module transforms the three-phase AC supply into a 2 VAC, 8 kVA output, adjustable by means of a variac. The second module performs the full-wave conversion to 2 Vdc with 8 kW power. The injected DC current value is displayed by a digital ammeter, whereas the trip time is measured by a digital 5-digit chronometer with 1-ms resolution.
- The LET-1000-RD is designed to perform most of the primary tests that are necessary in substations commissioning. It allows to perform with sufficient power, all the primary current injections to test the proper function and wiring of all the elements that compose the protection and measuring section in a substation.
The LET-2000-RD / 2000-RDM / 4000-RD / 4000-RDM units are constructed in two units for easier transportation. The RDM version replaces the traditional adjustment knob with a pair of push buttons that control a motorized variac for up- and down- regulation, for applications where a greater distance between the control board and the actual power output connections is required.
The LET-400 is designed to perform primary tests that are necessary in substations commissioning.
The LET-400-RD is designed to perform primary tests that are necessary in substations commissioning.
The LET-400-RDC is designed to perform primary tests that are necessary in substations commissioning.
The PTE-100-C and the Plus and Pro versions were 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.