Electric Power Transformer temperature Monitoring Device Manufacturing factory

basic function

Provide temperature measurement for three windings; Automatic/manual start stop cooling fan function; Digital compensation function for display values of each channel; OLED liquid crystal display; LED display light; Operating keyboard; Clock function;
Provide black box function, capable of recording temperature data, historical highest temperature, time, and status during 10 power outages;
Provide transformer cabinet door opening alarm function;
Provide 1 pair of over temperature alarm contacts (normally open);
Provide 1 pair of over temperature trip contacts (normally open);
Provide 1 pair of temperature controller fault alarm contacts (normally open);
Provide Ethernet communication function (MODBUS-TCP protocol), communication with time stamps, and can receive time synchronization;

additional function

F: Provide RS485 communication function (MODBUS-RTU protocol), communication with time stamps, capable of receiving time synchronization;
Io: Core temperature measurement function, providing 1 pair of core temperature measurement alarm contacts (normally open);
E: Provide 4-channel 4-20mA analog current output function;
L: Fan fault diagnosis function, providing 1 pair of fan fault alarm contacts (normally open);

Characteristics of dry-type transformer state monitoring device

The protection level is IP65.
Working environment temperature: -25 to+80 ℃
The contact output capacity is large.
The thermostat uses an ARM architecture CPU, which has strong data processing capabilities and system stability.
OLED LCD screen, digital and Chinese display, button operation, LED signal indication display.
The circuit board design concept of the thermostat is modular design, with strong and weak electricity separated to avoid spatial crosstalk.
The thermostat contains a clock chip and historical data storage with time stamps.
RS485 communication function, the communication protocol is the internationally open standard protocol Modbus RTU.
Ethernet communication function, communication protocol is the internationally open standard protocol Modbus TCP.