Intelligent Dry-Type  Transformer Monitor with Plastic Cover

Intelligent Dry-Type Transformer Monitor is designed for the safe operation of dry-type transformer.It can automatically operates the fan's relay according to the temperature.By comparing the current temperature to a pre-selected temperature, the monitor operates an alarm and the relay trips to keep the transformer running safely.

Thermostat For Plastic Cover:ModelNumber:SR-S series
Dimension:160x80x120(mm)
Hole size:153x77(mm)technical index:Ambient temperature:-20ºC~+55ºCAmbient humidity:< 95% (25ºC)Working voltage:AC 220V (+10%,-15%)Working frequency rate:50Hz OR 60Hz(±2Hz)Range of measurements:-30.0ºC~240.0ºCMeasurement accuracy:±1%FS(Thermostat level 0.5,Sensor class B)Resolution ratio:0.1ºCFan output total capacity:9A/250VACControl output capacity:5A/250VAC;5A/30VDC(resistivity)Power dissipation:≤8WStandard of Execution:Production standardsJB/T7631-2005"Electronic temperature controller for Transformers"Industry standardsAdoption of accreditation standards:ISO9001:2008International Quality Management System CertificationPass the test standard:IEC61000-4:1995 International standardGB/T17626-2008"Electromagnetic compatibility test and measurement techniques"standardProduct Selection:modelfunctionSR-*201DMonitor up to three dry-type transformer windings;Display maximum temperature;Built-in fan control, fan exerciser;Alarming function and relay output control;Tripfunction and relay output control;Automatic fault detection function;Historical record function;Range in temperature revise;Self-inspection;Switch input judging function.SR-*201*E*4-20mA output for integration with SCADA systemsSR-*201*F*RS485 or RS232 serial communication function.SR-*201*G*An additional sensor is added to measure the ambient temperature.SR-*201*I*An additional sensor is added to measure the temperature of silicon steel sheet.SR-*201*L*Addfault detection and alarm function of the fan.SR-*201*C*Add onepair of PTC to measure temperature.SR-*201*N*Add RJ45 Ethernet Communication function.SR-*201*P*Add Profibus communication function.SR-*201*H*Add onepath humidity measurement and control function.SR-*201*THAddanti-mold, moisture-proof, anti-salt fog and other measures.
Remarks:
1.The above models have all the functions of SR--201D.
2.*Represents shape specifications,for instance:IB-S201F,S represents plastic case,2representsAC220Vworking power supply ,F represents communication function;
3.Function codes can be combined.The order is E,F,G,I,L,C,N,P,H,TH.If only include L, C, TH functions, add D before the code;
4.Temperature controller model:SR-S201EF,Its function includes three independent 4~20mA analog current output and RS485 serial communication function.
Wiring diagram: