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Chongqing Blue Jay Technology Co.,Ltd
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  5. Blue Jay - Model TWSK - Transformer ...

Blue Jay - Model TWSK -Transformer Temperature Controller

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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.
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transmission data
  • 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.

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%
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
Work environment: -40~80°C; Noncondensing
Storage environment: -40~85°C; Noncondensing
Programmable 3-rows LED switching display
Dimension: 160W*80H*80Dmm; Hole size: 152×72mm