IB-S201 Dry Type Transformer Temperature Monitor and Controller Overview
The dry type transformer temperature monitor and controller is an intelligent temperature control instrument for dry type transformer protection. It collects temperature signals from Pt100 sensors installed in transformer windings and provides local display, fan control, alarm output and trip output.
The product is mainly used in transformer control cabinets, substations, power distribution rooms, industrial facilities and cast resin transformer systems where winding temperature needs to be monitored continuously.
Technical Specifications
| Specification Item | Standard / Optional Configuration |
|---|---|
| Product name | Dry Type Transformer Temperature Monitor and Controller |
| Typical model | IB-S201 series |
| Application | Dry type transformer winding temperature monitoring and control |
| Temperature range | -30.0°C to +240.0°C |
| Ambient temperature | -20°C to +55°C |
| Ambient humidity | <95% at 25°C |
| Working voltage | AC 220V, +10% / -15% |
| Working frequency | 50Hz or 60Hz, ±2Hz |
| Measurement accuracy | ±1%FS, thermostat level 0.5, sensor class B |
| Resolution | 0.1°C |
| Fan output total capacity | 5A / 250VAC |
| Control output capacity | 5A / 250VAC; 5A / 30VDC resistive load |
| Power dissipation | ≤8W |
| Production standard | JB/T7631-2005 electronic temperature controller for transformers |
| EMC test reference | IEC61000-4:1995 and GB/T17626-2008 electromagnetic compatibility test reference |
| External dimensions | 160 × 80 × 120 mm |
| Opening size | 153 × 77 mm |
| Installation type | Embedded panel installation with plastic case |
Core Functions
| Function | Description | Typical Use |
|---|---|---|
| Pt100 Sensor Input | Receives winding temperature signals from embedded sensors | A/B/C phase winding monitoring |
| Temperature Display | Shows real-time winding temperature and maximum temperature | Local cabinet inspection |
| Fan Control | Starts or stops cooling fans according to temperature setting | Forced air cooling control |
| Alarm Output | Provides warning signal when temperature reaches alarm threshold | Alarm lamp, buzzer or control cabinet |
| Trip Output | Provides protection output at high temperature threshold | Breaker or transformer protection logic |
| Fan Exerciser | Runs the fan periodically during low-load operation | Fan maintenance and reliability support |
Optional Configuration
| Option | Purpose |
|---|---|
| 4-20mA Output | Analog temperature signal for PLC, SCADA or remote display |
| RS485 / RS232 Communication | Digital temperature data transmission for monitoring systems |
| Ambient Temperature Input | Additional monitoring for transformer room or enclosure temperature |
| Core Temperature Input | Extended monitoring for silicon steel sheet or core area temperature |
Application Scenarios
Dry Type Transformer Control Cabinet
The controller is installed on the cabinet panel to display winding temperature and provide control outputs for transformer protection.
Cast Resin Transformer
Pt100 sensors embedded in the windings can send temperature data to the controller for cooling and alarm management.
Power Distribution Room
The controller supports local inspection and remote signal output for substations, commercial buildings and industrial distribution systems.
SCADA or BMS Monitoring
Optional analog or communication output allows transformer temperature data to be connected to upper-level monitoring systems.
Selection Guide
| Selection Item | What to Confirm |
|---|---|
| Transformer Type | Dry type transformer or cast resin transformer |
| Sensor Input | Pt100 winding sensor quantity and wiring method |
| Cooling Control | Fan start, fan stop and fan exerciser requirements |
| Protection Output | Alarm relay, trip relay and control cabinet logic |
| Remote Monitoring | 4-20mA, RS485, RS232 or local-only configuration |
| Panel Installation | Controller size, opening size and cabinet depth |
Frequently Asked Questions
What is this controller used for?
It is used for dry type transformer winding temperature display, fan control, alarm output and trip protection.
What sensor does it use?
It is typically used with Pt100 temperature sensors installed in the transformer windings.
Can it monitor three-phase winding temperature?
Yes. It can monitor three winding temperature points and display the maximum value.
Can it connect to SCADA?
Yes. Optional 4-20mA output or RS485 / RS232 communication can be selected for remote monitoring.
What should be confirmed before ordering?
Confirm sensor quantity, fan control logic, alarm and trip settings, communication requirement and panel installation size.
Dry Type Transformer Temperature Monitor and Controller for Winding Protection
This dry type transformer temperature monitor and controller provides a compact solution for winding temperature display, cooling fan management and protection output. It is suitable for dry type transformer control cabinets, cast resin transformers, substations, industrial power systems and SCADA-connected temperature monitoring projects.
