arcs managing

Technix offers 2 options allowing detection and counting electrical arcs. You can also download those informations here: download application note

blue square ARC DETECTION OPTION

As soon as an arc is detected, an ouput signal is delivered and the power supply switches off during a stop time.
This stop time (Tstop) can be factory set between 0.1s to 2s.
Typically, Tstop is set to 500 ms.


blue square ARC COUNTING OPTION

Each detected arc generates the process described above and increments a counter.
When a certain number of arcs are counted the power supply switches off and will restart only with a new switch-on procedure of the user.
This number of arcs is programmable by the customer from 1 to 15 (in binary) with the use of 4 micro switches located on the rear panel of the power supply.

arc managing example 1

Example 1: User sets the counter to 3.
The machine stops after a serie of 3 successive arcs.


blue square COUNTING QUALIFICATION

If the time between 2 arcs is too long, the second one resets the counter.
This time is called TCQ : Time for counting qualification.Typically TCQ is 1.3 second , that means 0,8 s after the restart for a typical Tstop of 0.5 second.
If an arc occurs within 1.3 s after a previous one, it is counted.
The counter is reset if a new arc occurs 1.3 second or more after the previous one.
TCQ can be factory set between 1 and 6 seconds.

arc managing example 2

Example 2: User sets the counter to 3.
The third arc occurs "late" after the second one.


blue square COUNTING VALIDATION/INHIBITION

An fifth switch is available for the user to validate or inhibit counting function. This switch is also located on the rear panel of the power supply.
In INHIBIT position, all the counting system is disable.