Connection points are the electrical connections between electrical equipment and between them and busbars or cables. Overheating of the connection point is an old problem of the power system. However, as the load of the equipment increases, the user's requirement for the reliability of the power supply becomes an increasingly prominent problem in the management of equipment defects. It is worthy of our attention and serious research. The reason for its development is to solve it completely.
(1) Heat source for electrical equipment. When the electrical equipment is working, due to the action of current and voltage, there are three kinds of thermal faults such as resistance loss heat generation, dielectric loss heat generation, and iron loss heat generation.
(2) Thermal failure of electrical equipment. Thermal faults in electrical equipment can be classified into external faults and internal faults. Poor contact is an external failure of electrical equipment; various electrical bare joints exposed to the atmosphere for a long time often cause overheating failure due to poor contact.
(3) Internal failure of electrical equipment. This refers to faults caused by electrical circuit failures and deterioration of insulating media enclosed in solid insulation, oil insulation, and equipment housings. According to the internal structure and operating state of various electrical equipment, according to the theory of heat transfer, the conduction and convection caused by the metal conductive circuit, insulating oil and gas, and the thermal image of the temperature distribution appearing from the outside of the electrical equipment can be judged. An internal fault.
It is used for continuous level measurement. The signal transmitted by its sensor is collected by the receiving system after being reflected by the target, and the distance of the target is determined by measuring the reflection running time. Then the level distance is converted into an output signal and output as a measured value.
The liquid level radar is applicable to the continuous non-contact liquid level measurement of liquid cargo tanks and overflow tanks of oil tankers and chemical carriers. It is also applicable to the liquid level monitoring of other oil tanks, towers, tank equipment and oil production platforms. Its measurement results are not affected by medium replacement, temperature change and gas or steam coverage.
Radar Level Gauge Sensor,Level Gauge Sensor,Level Sensor Durable,Durable Radar Level Gauge Sensor
Taizhou Jiabo Instrument Technology Co., Ltd. , https://www.taizhoujiabo.com