DTE-6M device purpose

The DTE-6M device is intended for operability testing and ampere-second characteristics monitoring of circuit breakers by power frequency AC in the 20A – 6kA range. It is capable to measure and record time and values of current transmitted through the circuit breaker, hereinafter – CB. It can be used as a controlled AC power source of current up to 6kA in low impedance power circuits.

In order to ensure personnel electrical safety, the output circuits are galvanically isolated from the power supply. The DTE-6M voltage on output terminals is less than 7V with fully opened thyristor, that is favorable for the circuit breakers contacts in time of tripping, which wearing is significantly reduced during multiple tests.

Technical specifications

Power supply voltage* 380V ± 10%
Power supply frequency 50 Hz ± 1%
Maximum consumption current 50 A
Maximum voltage at output terminals 7 V
Maximum current at output terminals (rms) 6.6 kA
Maximum DTE-6M power consumption 30 kW
** Output current measuring and recording range with measurement error less than 3% 20—6600 A
Measuring and recording range of output current duration with measurement error less than 1.5% 0,01—9999 sec.
Temperature protection threshold 96°С ± 10%
Overall dimensions,(mm) 480*250*310
Weight of the device without the flexible bars 53 kg
Device average service life 10 years

* Possible DTE-6M power voltage is 220V

** Technical specifications correspond to reduced values for device operation with a single-phase voltage regulator

DTE-6M operating conditions

Environment temperature range -5°C – +35°C
Relative air humidity at +25°C ≤80%.
Atmospheric pressure, mm Hg 630 — 795

You can see the 3D model of the device at this link