We all know that the motor integrated protector is developed from the traditional thermal relay. So far, the thermal relay is still used in the industry. So what are the differences between the two? Big, then Xiaobian makes a simple comparison for everyone. The data shows that the thermal relay can function less than 30 times per 100 motor faults, which is because the thermal relay itself can not overcome the defects, that is to say, this is one of the reasons for the birth of the motor integrated protector. The motor integrated protector adopts a modular design structure. The product is small in size, compact in structure and convenient in installation. It integrates functions of measurement, protection, control, interlocking and communication.
1. Thermal relay: The thermal relay has a simple structure and low price, so it is quickly accepted and applied by people. However, its own protection function is relatively small, and in many cases it cannot protect itself. Moreover, the thermal relay also has defects such as poor repeatability, failure to re-use after a large current overload fault, and large adjustment error.
2, motor integrated protector: Compared with the thermal relay, the motor integrated protector is more reliable, especially in the period of advocating energy saving and emission reduction, the advantages of the motor protector should be more prominent. Not only energy saving, but also sensitive and accurate. In addition to this, its repeatability is good, the protection function is relatively complete, and the life is also very long. However, the production cost of the motor protector is relatively high, so that its scope of use is not very extensive.
Comprehensive comparison of motor integrated protectors and thermal relays:
1. Thermal relay: The thermal relay has a simple structure and low price, so it is quickly accepted and applied by people. However, its own protection function is relatively small, and in many cases it cannot protect itself. Moreover, the thermal relay also has defects such as poor repeatability, failure to re-use after a large current overload fault, and large adjustment error.
2, motor integrated protector: Compared with the thermal relay, the motor integrated protector is more reliable, especially in the period of advocating energy saving and emission reduction, the advantages of the motor protector should be more prominent. Not only energy saving, but also sensitive and accurate. In addition to this, its repeatability is good, the protection function is relatively complete, and the life is also very long. However, the production cost of the motor protector is relatively high, so that its scope of use is not very extensive.
Comprehensive comparison of motor integrated protectors and thermal relays:
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