Primary Injection Relay Test Equipment

A wide range of high AC primary current injectors for overcurrent testing in substations, power plants and protective relays, circuit breakers and switchgear in general.

This range of equipment is designed for field use and is extremely rugged and robust.

Primary Injection Relay Test Equipment

Model S-LET-2000 RD

The S-LET-2000-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.

APPLICATIONS

- Direct and motor overload relay test.
- In general, primary tests including the complete loop, i.e., current transformer, leads, protective relay and circuit breaker.

CHARACTERISTICS

- Permanent current up to 2000A, 4KVA in 4 Ranges.
- Made up of two units.
- Built in digital ammeter 0.5% accuracy.
- Built in digital timer resolution 1 ms.
- Thermal and shortcircuit protection

Primary Injection Relay test Equipment

Model S-LET-4000-RD

The S-LET-4000-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.

APPLICATIONS

- Direct and motor overload relay test.
- In general, primary tests including the complete loop, i.e., current transformer, leads, protective relay and circuit breaker.

CHARACTERISTICS

- Permanent current up to 4000A, 8KVA in 4 Ranges.
- Made up of two units.
- Built in digital ammeter 0.5% accuracy.
- Built in digital timer resolution 1 ms.
- Thermal and shortcircuit protection