The so-called low-voltage appliances, according to my personal understanding is a device that detects the voltage of the external line, when the voltage is lower than a certain defined value, it will automatically cut off the power supply, thus causing damage to the line of electrical equipment. Now let's look at the definition of professionals, it is a kind of according to the external signals and requirements, manually or automatically turn on and off the circuit, in order to realize the switching of the circuit or non-electrical objects, control, protection, detection, transformation and regulation of the components or equipment. Today I would like to introduce you to a Chint low-voltage electrical appliances, to understand its common classification and related roles.
Chint Low Voltage Appliances - Chint Low Voltage Appliances Classification
1, knife switch: also known as the gate switch or disconnect switch, it is the hand-controlled appliances in the simplest and more widely used in a low-voltage appliances.
2, fuse: also known as fuse, IEC127 standard defines it as "fuse (fuse-link)". It is a kind of electrical components installed in the circuit to ensure the safe operation of the circuit. Fuses are widely used in high and low voltage power distribution systems and control systems, as well as electrical equipment, as a short-circuit and overcurrent protector, is one of the most commonly used protection devices.
3, low-voltage circuit breaker: (once called automatic switch) is a not only can connect and break the normal load current and overload current, but also can connect and break the short-circuit current switching appliances. Low-voltage circuit breaker in the circuit in addition to the control role, but also has certain protection functions, such as overload, short circuit, undervoltage and leakage protection.
4, contactor:? Is the use of industrial electricity in the coil flowing current to produce a magnetic field, so that the contact closure, in order to control the load of electrical appliances.
5, relay: relay is an electrical control device. It has a control system (also known as the input circuit) and the control system (also known as the output circuit) the interaction between. Usually used in automated control circuits, it is actually a small current to control the operation of large currents, an "automatic switch". Therefore, in the circuit plays a role in automatic regulation, safety protection, switching circuits.
6, the main electrical appliances: is used to connect and disconnect the control circuit to issue orders, or the production process for program control switching appliances.
Chint Low Voltage Electrical Appliances - Chint Low Voltage Electrical Appliances
1, control, such as the elevator up and down movement, fast and slow automatic switching and automatic floor stopping and so on.
2, the role of regulation, low-voltage electrical appliances can be adjusted to some power and non-power, ? to meet? User requirements, such as diesel engine throttle adjustment, room temperature and humidity adjustment, illumination of the automatic adjustment? regulation and so on.
3, the role of protection, according to the characteristics of the equipment, equipment, environment, and personal implementation of automatic protection, such as motor overheating. Automatic protection, such as motor overheating protection, short-circuit protection of the power grid, leakage protection.
4, the role of the instructions, the use of low-voltage electrical control, protection and other functions, to detect the operation of the equipment? Condition and electrical circuit work, such as insulation monitoring, protection off the sign indication.
Low-voltage electrical appliances are widely used whether in home life or office space, factories, entertainment and leisure places, public **** places. Of course, many people are still relatively unfamiliar with low-voltage appliances, but the above common classification of low-voltage appliances and the related role of the detailed description, so that we understand the classification of Chint low-voltage appliances are knife switch, fuse, low-voltage circuit breakers, contactors, relays, Jurassic appliances and so on. For the role of the relevant classification also have a detailed description, I hope you read carefully with the collection.
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