ABB plastic case circuit breaker selection guide and nameplate parameter analysis Overview of ABB Molded Case Circuit Breakers So far, ABB has three series of molded case circuit breakers, including Formula, Tmax T and Tmax XT. In order to make it more convenient for everyone to select the circuit breaker, we will mainly introduce the related models, characteristics, nameplate parameters and other information of each series of ABB molded case circuit breakers.

Pressure controller working principle and installation adjustment Working principle of pressure controller This equipment is an automatic controller that can receive pressure signals and perform actions based on the range value at the same time. It also has a pressure setting function so that the adjustment parameters can be changed at any time according to actual application requirements in the future.

The function principle and structure selection of drop-out fuse The role of drop-out fuse The 10kV specification equipment can be installed on the high-voltage side of the transformer on the pole, where the transformer and capacitor are connected to the line, and the drop-out fuse effectively plays the role of overload protection and short-circuit protection in the circuit.

The knowledge of switch cabinet can be better understood by mastering it What is the difference between switch cabinet and power distribution cabinet? Because the specific functions of the two may be different, they are called differently. Even if the design of the switch cabinet and the power distribution cabinet is similar from the appearance point of view, it does not include all. If it is internally used to control the "on" and "off" of the main power supply, and a large circuit breaker is also carried, we can call it a "switch cabinet" like this cabinet.

Classification and characteristics of reactors Classification of reactor 1. According to the wiring, it can be divided into series and parallel; 2. According to the function, it can be divided into current limit and harmony; 3. According to others, it can be divided into input and output. 4. According to the purpose, it can be divided into filtering, communication, arc suppression, starting, electric furnace, flat wave.

The difference between leakage circuit breaker and air switch The air switch can also be called an air circuit breaker, and due to its appearance, structure, size and material, it is also divided into plastic case and small (micro).

The role of distribution box and measures to avoid self-damage The role of the distribution box Whether before or now, a dedicated distribution box will be installed in almost every unit or residence in the community, and what is the main function of the distribution box?

Operation method of drawer type switch cabinet The propulsion interlocking mechanism of this equipment consists of three parts, which are composed of propulsion, interlocking and operation units.

Common problems and avoidance methods of Schneider molded case circuit breakers Fault description: A foreign body enters the device and causes phase loss. Cause: When installing the Schneider molded case circuit breaker, some foreign objects fell into the interior, which caused the equipment's moving and static contacts to have bad phenomena when they were in contact and even lack phase.

What is the difference between reactor and capacitor Reactor symbol description The difference between reactor and capacitor First of all, the reactor is an inductive load, and at the same time, it has two connection modes: series and parallel.