During the operation of high-temperature tube furnaces, circuit tripping is a common fault phenomenon, which seriously affects the normal progress of production. In this paper, we will analyze the causes of circuit tripping during the operation of high-temperature tube furnaces.
A short circuit refers to the direct flow of current from the positive electrode to the negative electrode due to insulation damage and poor contact of the wire in the circuit, forming a high-current loop. Short-circuit faults are one of the main causes of tripping circuits in high-temperature tubular furnaces. Short circuits can lead to serious consequences such as damage to electrical components, fire, and more. In order to avoid short-circuit faults, the wiring, joints and other parts of the tube furnace should be checked regularly to ensure that the insulation is good and the connection is firm.
Overload is when the current in the circuit exceeds the rated value, resulting in heating and damage to the electrical components. During the operation of the tube furnace, it may be overloaded due to excessive load, voltage fluctuations and other reasons. An overload fault can cause the circuit to trip, protecting the electrical components from damage. In order to avoid overload failure, the electrical components should be reasonably selected according to the rated power of the high-temperature tube furnace, and at the same time, attention should be paid to the current changes in the operation process and the load should be adjusted in time.
Leakage is when the current in a circuit flows directly into the ground wire or ground body without passing through the normal circuit. Leakage faults can lead to personal safety accidents, equipment damage, and other problems. During the operation of high-temperature tube furnaces, leakage may occur due to insulation damage, poor grounding, etc. Leakage faults can cause circuits to trip, protecting people and equipment. In order to avoid leakage failures, the insulation performance of the tube furnace should be checked regularly to ensure that the grounding is good.
Power supply problems are an important cause of tripping circuits in high-temperature tube furnaces. Power supply issues include voltage fluctuations, power line failures, and more. Voltage fluctuations can cause the electrical components of the tube furnace to work unstablely, causing the circuit to trip. A faulty power line may cause the current to fail to transmit properly, causing the circuit to trip. In order to solve the power supply problem, the stability and reliability of the power supply line should be ensured, and the power supply equipment should be checked regularly to ensure its normal operation.
The control system of high-temperature tube furnace mainly includes temperature controller, pressure controller, etc. A failure of the control system may cause abnormal operating parameters of the tube furnace and cause the circuit to trip. In order to avoid the failure of the control system, the controller should be regularly inspected and maintained to ensure that it is working properly.
Environmental factors can also cause tube furnace circuits to trip. For example, harsh environments such as high temperatures, humidity, and corrosive gases can cause electrical components to deteriorate and deterioration of insulation properties, which can lead to circuit tripping. In order to reduce the influence of environmental factors, the tube furnace should be placed in a dry, ventilated, and non-corrosive gas environment as much as possible, and the protective measures of the equipment should be strengthened.