DTE-16M device purpose

The circuit breaker testing device DTE-16M is intended for operability testing and ampere-second characteristics monitoring of circuit breakers by power frequency AC in the 20A – 16kA range. It is capable to measure and record time and current values transmitted through the circuit breaker. It can be used as a controlled AC power source of current up to 16kA in low impedance power circuits.

In order to ensure personnel electrical safety, the output circuits are galvanically isolated from the power supply. The voltage on DTE-16M output terminals is less than 7V with fully opened thyristor, that is favorable for the circuit breakers contacts in tripping time, which wearing is significantly reduced during multiple tests.

DTE-16M technical specifications

Power supply voltage* 380V ± 10%
Power supply frequency 50 Hz ± 1%
Maximum power consumption current 260 A
Maximum voltage at output terminals 7 V
Maximum current at output terminals (rms) 16 kA
Maximum DTE-16M power consumption  112 kW
Output current measuring and recording range
with measurement error less than 3% 20A – 17600A
Measuring and recording range of output current duration
with measurement error less than 1.5% 0,01—1000 sec.
Temperature protection threshold 96°С ± 10%
Overall dimensions,(mm) 720х485х880
The device weight without the flexible buses, at most 86 kg
Device average service life 10 years

* Allowable DTE-16M power voltage is 220V, wherein the maximum output current is 13kA

DTE-16M Package contents

Control unit of the DTE-16M 1 pc.
Current amplifier T-16 1 pc.
Flexible bus, length – 2,0 m, cross section – 120 mm² 6 pcs.
Power cord with three-phase power plug and portable socket 1 pc.
Current sensor 1,6kA, 16kA/5A 1 pc.
DTE-16M Operation Manual 1 pc.
Calibration certificate 1 pc.

DTE-16M operating conditions

Environment temperature range 0°C – +35°C
Relative air humidity at +25°C ≤80%.
Atmospheric pressure, mm Hg 630 — 800