1. The vacuum tester fuse is blown. The resistance of the fuse blown capacitor shall be visually inspected to determine whether there is a bulge, overheating of the relay protection tester of the energy storage station, cracking, and fuse element fuse. The appearance of no obvious fault characteristics should generally be tested, measuring the resistance capacitor capacity and telemetry ground insulation resistance. However, at present, there have been cases in which fuses are blown due to poor fuse quality or insufficient heat capacity and poor contact, and it is normal after replacing the fuse.
2. The explosion of the vacuum tester. The root cause of the explosion is the breakdown of the capacitors between the poles caused by the free discharge between the poles. We believe that the capacitor's safety characteristics are less than the burst characteristics of the fuel tank as long as it is fitted with a suitable protective fuse. When a short-circuit breakdown occurs in the capacitor, the fuse will first cut off the power supply to avoid an explosion and prevent ignition and damage to adjacent capacitors. Star-connected capacitor banks rarely explode due to limited fault currents. Therefore, it can be affirmed that a single protective fuse is an important device, and its safety configuration can prevent the fuel tank from bursting. Therefore, the use of a star connection is also an important explosion-proof measure.
3. Select the appropriate fuse for the vacuum tester. A single protection fuse has poor breaking performance and is one of the causes of capacitor explosion. The fuse used for the protection of a single capacitor is a jet fuse. The fuse is mainly generated by the energy of the fuse current itself to extinguish the arc and break the fault current. In the capacitor device, it is often used as the main protection for internal faults. If the fuse can successfully break the faulty capacitor, the fuel tank will not explode. The fuse with poor breaking performance is often blocked by the tube in the operation of the arc extinguishing tube. In addition, the installation method is improper or the spring is not in place, and the tail wire cannot be quickly popped after the fuse is blown, which may affect the arc breaking.
2. The explosion of the vacuum tester. The root cause of the explosion is the breakdown of the capacitors between the poles caused by the free discharge between the poles. We believe that the capacitor's safety characteristics are less than the burst characteristics of the fuel tank as long as it is fitted with a suitable protective fuse. When a short-circuit breakdown occurs in the capacitor, the fuse will first cut off the power supply to avoid an explosion and prevent ignition and damage to adjacent capacitors. Star-connected capacitor banks rarely explode due to limited fault currents. Therefore, it can be affirmed that a single protective fuse is an important device, and its safety configuration can prevent the fuel tank from bursting. Therefore, the use of a star connection is also an important explosion-proof measure.
3. Select the appropriate fuse for the vacuum tester. A single protection fuse has poor breaking performance and is one of the causes of capacitor explosion. The fuse used for the protection of a single capacitor is a jet fuse. The fuse is mainly generated by the energy of the fuse current itself to extinguish the arc and break the fault current. In the capacitor device, it is often used as the main protection for internal faults. If the fuse can successfully break the faulty capacitor, the fuel tank will not explode. The fuse with poor breaking performance is often blocked by the tube in the operation of the arc extinguishing tube. In addition, the installation method is improper or the spring is not in place, and the tail wire cannot be quickly popped after the fuse is blown, which may affect the arc breaking.
KNB6-63 Miniature Circuit Breaker
KNB6-63 Mini Circuit breakers, also named as the air switch which have a short for arc extinguishing device. It is a switch role, and also is a automatic protection of low-voltage electrical distribution. Its role is equivalent to the combination of switch. Fuse. Thermal Relay and other electrical components. It mainly used for short circuit and overload protection. Generally, According to the poles, mini Circuit breaker can be divided into 1P , 1P+N , 2P, 3P and 4P.
KNB6-63 Miniature Circuit Breaker,Electronics Miniature Circuits Breaker,Automatic Miniature Circuit Breaker,Mini Circuit Breaker
Wenzhou Korlen Electric Appliances Co., Ltd. , https://www.zjmotorstarter.com