PT100 temperature sensor is a temperature measurement element, the temperature parameters of the measurement object is converted into variable electrical parameters. When the output to the special digital display instrument, real-time display of the measured object temperature; access to the corresponding temperature control and protection system, the abnormal temperature will activate the protection system, triggering the power supply circuit breaker action, cut off the motor power supply, to avoid local faults due to motor triggered by a vicious accident. PT100 is how to convert the temperature parameters into electrical parameters? Do not understand may feel very mysterious, after the following explanation you may not be so puzzled: PT100 RTD is mainly composed of platinum metal. Platinum metal thermal stability is very high, its resistance value and temperature there is a strict one-to-one correspondence between.
PT100 temperature sensors are widely used in industrial equipment for the measurement and control of process temperature parameters. Transmitters with sensors usually consist of two parts: the sensor and the signal converter. Sensors are mainly thermocouples or RTDs; signal converter by the measurement parameters, signal processing and conversion unit, according to customer demand, some transmitters will increase the real-time temperature display unit, powerful also has a fieldbus function, uploaded to the control centre.
Motor on the application of PT100 on the motor winding and bearing temperature monitoring and protection of the specific method: in order to ensure that the motor full life cycle monitoring needs, usually in each phase of the winding buried in two sets of temperature measurement components, that is, a set of preparation for a set of; bearing part of the temperature measurement components can be replaced on-site when the damage is caused, so a set of bearings can be equipped with only one. Therefore, the temperature measurement of large three-phase motors is generally configured according to the 8-point temperature measurement: three points of the winding, two points of the bearing (two pivot point bearings, each one point) online, and then standby three points of the winding temperature measurement.
Post time: Dec-27-2023
