The TWSK-G Intelligent Temperature Controller is specially designed for air-cooled dry-type transformers. Powered by a high-performance 32-bit microprocessor with integrated DSP and FPU units, it enables fast and accurate three-phase winding temperature monitoring and display. It supports manual/automatic fan control, over-temperature alarm and trip protection, self-diagnostics, maximum temperature recording, and temperature logging at power loss, enhancing transformer safety and reliability.
The controller supports RS485 communication and door-opening output, with parameter retention and operating data memory functions. Optional features include 4–20 mA analog output and core temperature monitoring, providing a flexible solution for transformer temperature monitoring and remote management.
The TWSK-G Intelligent Temperature Controller is specially designed for air-cooled dry-type transformers. Powered by a high-performance 32-bit microprocessor with integrated DSP and FPU units, it enables fast and accurate three-phase winding temperature monitoring and display. It supports manual/automatic fan control, over-temperature alarm and trip protection, self-diagnostics, maximum temperature recording, and temperature logging at power loss, enhancing transformer safety and reliability.
The controller supports RS485 communication and door-opening output, with parameter retention and operating data memory functions. Optional features include 4–20 mA analog output and core temperature monitoring, providing a flexible solution for transformer temperature monitoring and remote management.
| Working power | |
| Power supply | AC220V(±10%,50Hz) |
| Consumption | ≤5VA |
| Measurement | |
| Oil temp. measure range | -30 ~ 200°C |
| Accuracy | ±0.5%FS |
| Resolution | 0.1°C |
| Interface | |
| Digital output | Load capacity: 10A@AC250V
Passive NO contact for output of fault, alarm, trip, door open, Active output 220Vac for output of fan control |
| Digital Inputs | Passive NO contact for door open signal input |
| Analog output (optional) | DC 4~20mA |
| Communication | RS485/Modbus RTU |
| Safety | |
| Withstand voltage | 2kV AC RMS 1 minute, between input / output / case / power supply; 1kV AC RMS 1 minute, between output and power supply. |
| Insulation | Input, output and power supply to the chassis ≥5 MΩ |
| Environment | |
| Protection (TH) | Anti-containing acid, alkali, salt gas |
| Work environment | -30~60°C; Noncondensing |
| Storage environment | -40~85°C; Noncondensing |
| Others | |
| Display method | Programmable 2-rows LED switching display |
| Dimension | 160W*80H*123Dmm; Hole size: 154×77mm |
| Weight | Approx. 1KG |
Host dimension: 160W*80H*134Dmm; Hole size: 154×77mm
Temperature sensor dimension
The sensor is supplied with a 15-pin plug. The standard cable lengths are LA= 4m, LB= 4.3m, LC= 4.6m, and Ld= 4.6m. Please specify any special length requirements when placing an order.
Three-wire winding temperature sensor (default)
Four-wire Winding temperature sensor (optional)
