IB-PQ201F Dry-type transformer thermostat

Functional Features

• Temperature monitoring and display : It can realize three-phase circuit display or maximum value display, real-time monitoring and accurate display of transformer winding temperature, and intuitively present the equipment operation status.
• control function Supporting automatic/manual start/stop of fan, it can automatically control the fan operation according to the set temperature to achieve the balance of energy saving and cooling.
• Alarm and protection functions With over-temperature alarm, over-temperature trip and fault alarm function, once the temperature is abnormal or equipment failure, it can issue timely alarm and take protective measures to effectively prevent the transformer from being damaged due to overheating, and safeguard the safety of the equipment and the system.
• Data logging and communication functions The "black box" function can record multiple failure information, which is easy to analyze and diagnose afterwards. It also supports the function of timed excitation of the fan, which prevents the fan from failing after a long period of inactivity. And added RS485/232 serial communication function, can realize remote monitoring and data transmission, to meet the demand of intelligent management.
• Other Features : Part of this type of thermostat can also simulate testing, digital compensation, cabinet door opening alarm, etc., which further enhances the reliability and maintainability of the equipment.

Technical Parameter

• environmental adaptation Ambient temperature - 20℃~+55℃, humidity <95% (25℃), adapt to a variety of working environments.
• Operating voltage and frequency AC 220V (+10%, -15%), working frequency of 50Hz or 60Hz (±2Hz), compatible with the power supply requirements of different power systems.
• temperature measurement parameters Temperature measurement range - 30.0℃～240.0℃, temperature measurement accuracy ±1%FS (thermostat 0.5 level, sensor B level), resolution 0.1℃, can accurately measure and reflect the actual temperature change of the transformer winding.
• Output Capacity and Power Consumption : Fan output capacity 9A/250VAC, control output capacity 5A/250VAC; 5A/30VDC (resistive), thermostat power consumption ≤ 8W, can ensure the function while reducing its own energy consumption.

application scenario

• Dry-type transformer temperature monitoring and control : Widely used in the power system of the European box variable, medium voltage distribution cabinet and other equipment, dry-type transformer winding temperature monitoring and control, to prevent overheating caused by insulation aging or short circuit, to protect the stable operation of the power grid.