Dry-Type Transformer Temperature Controller - Plastic Enclosure 02

Dry-Type Transformer Temperature Controller - Plastic Enclosure 01

Dry-Type Transformer Temperature Controller - Plastic Enclosure 03

Dry-Type Transformer Temperature Controller - Plastic Enclosure 04

Dry-Type Transformer Temperature Controller – Plastic Enclosure

The Dry-Type Transformer Temperature Display Controller is a new generation of multifunctional, microprocessor-based temperature controllers designed to ensure the reliable operation of air-cooled dry-type power transformers. It utilizes three PT100 platinum thermal resistors—embedded within the three-phase windings of the transformer—to detect temperature rises in the winding coils. Based on these temperature readings, the controller automatically manages the startup and shutdown of cooling fans, triggers over-temperature alarms, and initiates an ultra-high temperature trip to safeguard the transformer’s operation. Designed in accordance with the JB/T7631 standard and incorporating advanced single-chip microcomputer technology combined with I²C storage and adjustment techniques, the controller features a simple structure, reliable performance, and exceptional anti-interference capabilities. Furthermore, the controller includes a “Black Box” function capable of recording the temperatures of the three winding coils, as well as the operational status of the unit itself, immediately prior to a power outage.

1. Operating Conditions
Ambient Temperature: -10°C to +55°C
Relative Humidity: 5% to 95%
Atmospheric Pressure: 60 kPa to 160 kPa
Operating Voltage: AC 170 V to AC 250 V (48 Hz to 60 Hz)

2. Measurement Range: -40°C to 200°C

3. Resolution: 0.1°C

4. Measurement Accuracy: ±0.5°C

5. Control Accuracy: ±1°C

6. Power Consumption: <8 VA

7. Weight: <1 kg

8. Sensor Type: PT100

9. Anti-interference performance complies with the JB/T 7631 standard.

10. Fan relay contact capacity: 10 A / AC 220 V;
Alarm, Trip, and Fault relay contact capacity: 5 A / AC 220 V;

11. Instrument Dimensions: 80 mm × 160 mm × 134 mm; Panel Cutout Dimensions: 152 mm × 77 mm

Dry-Type Transformer Temperature Controller – Plastic Enclosure

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Dry-Type Transformer Temperature Controller – Plastic Enclosure

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