Megger offers a powerful test system designed for primary injection testing of protective relay equipment and circuit breakers.
The ODEN A primary current injection test system is also used to test the transformation ratio of current transformers and for other applications that require high variable currents. Up to 8 kA can be generated with these test systems.
The ODEN A system consists of a control unit together with one or two current units. All parts are portable and ODEN A can be quickly assembled and connected.
There are two versions of the current unit: S and X; S and X are identical in all respects except that X has an additional 30/60 V output.
Oden A primary current injection test system can be used in a number of applications where high current is required:
- Primary current injection testing of protective systems
- Breaker testing
- Testing current transformers
- Heat runs: joints, circuit breakers and disconnectors
- Testing of safety-ground devices
- Testing integrity of ground grids
One way to test the integrity of ground grids is by injecting current between a reference ground and the ground to be tested, and measuring the voltage drop and the percentage of current flowing through the ground grid.
The type X current unit included with ODEN A is designed for this type of application.