Feature
- 3-digit LED display;
- Automatic fan/heater control;
- Over temperature alarm;
- PT100 temperature sensor input;
- Two DC 4-20mA analog outputs;
- Temperature monitoring from -50 ~ 150°C;
- RS485 with Modbus RTU protocol.
Technology of Electrical Automatic
TWSK Transformer Temperature Controller
TWSK Transformer Temperature Controller
The TWSK Series transformer temperature controller is specifically designed for the container transformer stations. It accurately measures the oil temperature of the transformer and the environment temperature. Real-time control the cooling fans, heaters, alarms, and trip actions based on transformer winding temperature sensors and custom programming. when the oil temperature exceeds the threshold, it automatically triggers over-temperature alarms or trips, when the ambient temperature rises, it starts the fan for cooling, and when humidity approaches condensation levels, it activates the heater for dehumidification.
The temperature sensor adopts an armored PT100 liquid sensor with a three-wire connection, supporting cable lengths of up to 20 meters. It provides precise temperature readings without the need for compensation or calibration. The controller is also equipped with RS485 communication for remote monitoring and data transmission.
The TWSK Series transformer temperature controller is specifically designed for the container transformer stations. It accurately measures the oil temperature of the transformer and the environment temperature. Real-time control the cooling fans, heaters, alarms, and trip actions based on transformer winding temperature sensors and custom programming. when the oil temperature exceeds the threshold, it automatically triggers over-temperature alarms or trips, when the ambient temperature rises, it starts the fan for cooling, and when humidity approaches condensation levels, it activates the heater for dehumidification.
The temperature sensor adopts an armored PT100 liquid sensor with a three-wire connection, supporting cable lengths of up to 20 meters. It provides precise temperature readings without the need for compensation or calibration. The controller is also equipped with RS485 communication for remote monitoring and data transmission.
Application
- Electrical power system;
- Photovoltaic system transformers;
- LV / MV container transformer station;
- Transmission and distribution industry.
Specification
| Working power | |
| Power supply | 220VAC, 50Hz |
| Consumption | ≤1VA |
| Measurement | |
| Oil temp. measure range | -50 ~ 150°C |
| Ambient temp. measure range | -50 ~ 150°C |
| Humidity range | 10 ~90%RH |
| Resolution | 0.1 |
| Response speed | <1s |
| Accuracy error | Temperature: <1°C Humidity: <5% |
| Output | |
| Relay output | 3* relay outputs, 5A@AC250V contact capacity |
| Analog output | DC 4~20mA |
| Communication | RS-485/ MODBUS – RTU (9600; n,8,1) |
| 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 | -40~80°C; Noncondensing |
| Storage environment | -40~85°C; Noncondensing |
| Others | |
| Display method | Programmable 3-rows LED switching display |
| Dimension | 160W*80H*80Dmm; Hole size: 152×72mm |
Wiring method
Dimension
Host panel installation
Oil temperature sensor installation
Ambient sensor
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Chongqing Blue Jay Technology Co., Ltd. was founded by engineers with many years of experience. Focuses on the development, production and sales of power automation monitoring products and energy metering instruments.
1802, Building 2, No. 88, Jianxin East Road, Chongqing City, 400020, China
Liandong U valley Industrial Park,Hangzhou City, China
Jiangyin High-tech Zone, Jiangyin City, China