The TWSK Series transformer temperature controller is specifically designed for container transformer stations such as Dry-Type Transformers and Cast Resin Transformers. It can accurately monitor transformer windings, oil, and ambient temperature.

This transformer temperature monitor provides Fans, Alarm, and Trip output relays. Real-time control of the cooling fans, heaters, alarms, and trip actions based on transformer winding temperature sensors and custom programming.

Feature

• Temperature monitoring for transformer: Real-time monitoring of transformer winding or oil temperature. When the oil temperature exceeds the threshold, it automatically triggers over-temperature alarms or trips.
• Temperature control: Automatically start or stop cooling systems (such as fans) based on set temperature thresholds. When the ambient temperature rises, it starts the fan for cooling.
• Humidity control: when humidity approaches condensation levels, it activates the heater for dehumidification or dehumidifiers.
• 3-digit LED display: Real-time monitoring is easy with the 3-digit LED display, providing at-a-glance readings of transformer oil temperature, ambient temperature, and ambient humidity.
• 3 sensor inputs: Oil temperature sensors, ambient temperature sensors, and ambient humidity sensors are available. The temperature sensor adopts an armored PT100 liquid sensor with a three-wire connection, supporting cable lengths of up to 20 meters. The ambient humidity sensor uses an imported high-reliability integrated sensor.
• RS485 Communication: Specifically for industrial applications, this transformer temperature controller features an RS-485 Modbus RTU port, ensuring smooth integration with your PLC and other control systems.

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