Purpose
Сircuit Breaker Testing Device DTE-14M (High-Current Circuit Breaker Test Device)
The DTE-14M Primary Injection Test Set is a powerful circuit breaker test device designed for testing and verifying the time–current characteristics of AC circuit breakers in the extended range of 50 A to 14,000 A. It measures and records operating time and current, making it essential for testing heavy-duty breakers, protective relays, fuses, and current transformers.
Main Applications
- Circuit breaker testing (time–current characteristics up to 14 kA).
- Primary current injection testing and certification of protective and measuring CTs.
- Relay calibration and adjustment (overcurrent and thermal relays for industrial use).
- High-power fuse testing and verification.
- Use as an adjustable AC current source up to 14 kA for laboratory and field tests.
Key Features
- Mounted on a transport trolley – easy relocation and simplified operation at test sites.
- Full galvanic isolation of output circuits from the supply ensures operator safety.
- Wide testing range: breakers, transformers, relays, and fuses up to 14,000 A.
- Extended capacity compared to DTE-3M, DTE-6M, and DTE-10M.
Price on request.
Contact us to buy the DTE-14M Primary Injection Test Set directly from the manufacturer and get delivery details.
Technical specifications
| *Supply Voltage, V | 400 ±5% |
| Supply Network Frequency, Hz | 50 ±1% |
| Maximum Voltage on Output Buses, V | 3.5 |
| Maximum Current on Output Buses (RMS), A | 15400 |
| Maximum Power Consumption DTE-14M, kVA | 110 |
| **True RMS Measurement and Registration Range of Output Current, A, from 10% (or at least 50 A) to 100% of the selected range with measurement error less than 3% | 50 – 15400 |
| Measurement and Registration Range of Output Current Duration, sec, with measurement error less than 1.5% | 0.01 – 9999 |
| Threshold of Power Transformer Overheat Protection, °C | 96 ±10% |
| Overall Dimensions of Control Unit BU-14, mm | 300×250×135 |
| Overall Dimensions of Current Amplifier Unit BPS-14, mm | 480×250×320 |
| Overall Dimensions of Transport Cart, mm | 420×220×780 |
| Mass of Control Unit BU-14, kg, max | 3.6 |
| Mass of Current Amplifier Unit BPS-14, kg, max | 54 |
| Mass of Current Sensor DS-14, kg, max | 4 |
| Mass of Transport Cart, kg, max | 12 |
| Average Service Life of the Device, years | 10 |
* Possible DTE-14M power voltage is 230V, wherein the power output would three times decrease. (Maximum output current – 9kA).
** The technical characteristics correspond to the given values when operating the device complete with a single-phase voltage regulator (SVR).
Device operating conditions
| Environment temperature range | -5 °C — +35°C. |
| Relative air humidity at +25°C | ≤85%. |
| Atmospheric pressure, mm Hg | 630—800 |
You can see the 3D model of the device at this link
Gallery
