Conventional accessories
Temperature monitoring units for dry-type transformers
Hospitals, data centers, and shopping malls are some of the examples where dry transformers are installed to minimize any risk of fire and power collapse. To secure these transformers’ reliable and safe service conditions, different accessories and safety devices are required. Our temperature monitoring unit DTI enables controlling alarms and cooling systems and continuously monitors any anomalous variation in the temperature in your transformer through PT100 temperature sensors and can detect up to a maximum of 4 temperatures simultaneously.
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Why buy
- Fast temperature variation diagnostics enables informed decision making
- Two programmable signaling levels (Alarm – Trip)
- Control of cooling fan system
- Power supply: 24/230 V dc/ac ±15% 50-60 Hz
Application
- Dry-type transformers
- Electric motors
Technical data at a glance
| Auxiliary power supply | 24/230 V ac/dc ±15% 50-60 Hz | |
| Maximum absorption | 4 VA | |
| Measure inputs | 3 – 4 inputs by RTD PT100 (max wire resitance 20 Ohm) | |
| Interval of measure | -30 °C / +220 °C / precision ± 2°C | |
| Interval of visualization | -30 °C / +220 °C | |
| Tripped delay-hysteresis | 5 seconds and -2 °C | |
| Measure visualization | 2 displays with led 7 segments, 3-digit | |
| Outputs | 4 relay NO_C_NC (250 V 5 A resistive load) | |
| Output functions | Alarm, trip, fan, auto-diagnostic | |
| Programmable functions | ALARM, TRIP, HOLD, FAN, T.MAX., HOT, FDC | |
| Connection | Extractible terminal with screws, section wires max 2.5 mm2 | |
| Insulation | 2500 Vrms 50 Hz per 60 s: U aux – input PT100 / U aux – relay outputs / inputs PT100 – relay outputs | |
| Protection degree | IP52 front panel, IP20 rear panel, compliant with CEI-EN 60529 | |
| Dimensions – enclosure | Flash mounting DIN 96×96 mm, depth 120 mm/ Enclosure thermoplastic self-extinguishing as UL94 VO | |
| Working environment | From -10 °C to + 60 °C, humidity max 95% | |
| Storing temperature | From +25 °C to +70 °C | |
| Standards | Security: EN 61010-1 EMC: EN 61000-4-2; EN 61000-4-3; EN 61000-4-4; EN 61000-4-5; EN 61000-4-11; EN 61000-6-4 | |
