SMC LET-1000-RD
Primary Injection Tester

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 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. A built-in ammeter and a timer gives the information about the current value and the operation time of the relay or breaker under test.

In comparison with the big and heavy traditional variac-based equipment, the Raptor is designed incredibly smaller and lighter than its predecessors, combining a revolutionary high current generation technology, DSP based, with an automatic smart control, in a really transportable set, less than 35 Kg and able to inject up to 15,000 A.

Features

• Permanent current up to 1000 A, 2 KVA in 3 Ranges.
• Built in digital ammeter 0.5% accuracy.
• Built in digital timer resolution 1 ms.
• Thermal and shortcircuit protection.

Documentation:

Equipment Specifications