LS produces common sense of electroplastic case circuit breaker

Create Date: 2024-8-30 12:03:23|Source: LS/Power Generation

Now in the process of using molded case circuit breakers, it is necessary to understand the rated current of molded case circuit breakers, and the rated current of molded case circuit breakers generally has more than a dozen, mainly 16A, 25 A, 30A, and the height may reach 630A.

LS produces common sense of electroplastic case circuit breaker

LS produces common sense of electroplastic case circuit breaker

LS Electroplastic Case Circuit Breaker Knowledge:

(1) Tripping

LS electroplastic case circuit breaker basically involves the tripping unit in the process of practical application, and the tripping is generally a thermomagnetic tripping or electronic tripping, and we must also understand this different tripping method in advance.

In the process of practical use, if there are requirements for the capacity of LS electric molded case circuit breakers, you can choose some special molded case circuit breaker types, Let's also understand the price of molded case circuit breakers, because molded case circuit breakers if it adopts different tripping methods, its price will be very different, we must understand when purchasing, manufacturers in terms of detailed price regulations, in addition to understanding the practical working conditions of molded case circuit breakers, Due to the fact that the molded case circuit breaker has certain requirements for the surrounding air temperature in the process of practical use.

(2) Temperature

If the temperature is too high or too low, it may have a bad impact on the molded case circuit breaker, Now, the working conditions of the molded case circuit breaker generally require that the high temperature cannot exceed 40 degrees, and the low temperature cannot be lower than minus 5 degrees.

We must consult the manufacturer about the upper and lower limits of the temperature of the molded case circuit breaker in the process of practical use, and sometimes the price of the product supplied by a manufacturer may be relatively low, we will feel that this thing is very cost-effective, but if you deepen your understanding, you will find that its practical use process is more stringent for the requirements of working conditions, so this will also affect the later use, and we should also understand this problem in the process of use

In the process of practical use, there will also be some operational requirements for LS molded case circuit breakers, because molded case circuit breakers are basically impossible to maintain, and the operation is basically manual operation.

More on that

	Specification steps for the safe operation of generator sets – power generation Standardized procedures for safe operation of generator sets 1. Preparation before starting (1) The operators of the computer room should abide by the safety operation procedures, wear work clothes and insulated shoes, and the crew should have a clear division of labor. (2) Check whether the flywheel and part of the generator are not defective. ...
	The matrix alternating control mode of the inverter - LS power generation VVVF frequency conversion, vector control frequency conversion, and direct torque control frequency conversion are all one of the AC-DC-AC frequency conversion. One of the disadvantages is that the input power factor is low, the harmonic current is large, the DC circuit needs a large energy storage capacitor, and the regenerative energy cannot be reflected back to the grid, that is, it cannot carry out four-quadrant operation.
	Introduction to the working principle of LS electric molded case circuit breaker Molded case circuit breakers are also known as equipment circuit breakers, all parts are sealed in plastic housings, auxiliary contacts, undervoltage trippers and shunt trippers are modular. Because of the very compact structure, the molded case circuit breaker is basically impossible to maintain. It is mostly manually operated, and the large capacity ...
	The lightning protection port of the inverter - LS generates electricity According to the applied engineering practice, variable frequency drive (VFD) lightning strikes can be roughly divided into direct lightning, induced lightning and conducted lightning. But no matter what form it takes to reach the device, it can be summarized as a lightning surge from the following four parts, which are called lightning protection ports here, with V ...
	Introduction to the matching of LS power inverter loads 1. Square torque load Fan and pump loads are the most widely used equipment in industrial sites, and frequency converters are used in this type of load. It is a square torque load. In general, inverters with U/f=const control mode can be satisfied with the ...
	Inverter maintenance fault handling method - LS power generation 1. Not manifested. This situation is more common, generally in the normal condition of the external three-phase power supply, it is the switching power supply of the inverter burned, and the 24 volt power supply on the output board of the inverter terminal can be measured.
	Introduction of LS AC motors 1. AC synchronous motor: that is, the rotor is composed of permanent magnet data, so after rolling, with the change of the stator rotation magnetic field of the motor, the rotor also changes the speed of the response frequency, and the rotor speed = stator speed, so it is called "synchronization". ...
	Introduction of LS electric power contactors How LS Contactor Works: Generally, after the contactor coil is energized, the entire coil current will generate a magnetic field, which will make the core inside have electromagnetic attraction to attract the core, and let their communication contactor point action normally closed contact disconnect, or close, which ...
	Grounding of the secondary side of the voltage transformer and the current transformer - power generation 1. The transformer is grounded twice It refers to the grounding of the S2 terminal of the current transformer or the ground of the n terminal of the voltage transformer. As long as the single point is grounded, because the transformer is blocked between the second and the first, before grounding, the secondary winding has no potential connection with the ground, after grounding, the transformer ...
	Dealing with intermittent shutdown fault measures - power generation Because the touch of the network adapter is not good, perhaps due to disturbance and other problems, the DP network that has been used for a long time may show a "transient disconnection" situation, that is, it will be disconnected by an occasional moment, and it will soon recover normally. If OB86 is not downloaded, the CPU will stop during a transient outage. Now all over the option to download a ...
	Brake unit, brake resistor function - LS generates electricity Brake unit: The function of the braking unit is to turn on the energy-dissipating circuit when the voltage Ud of the DC circuit exceeds the specified limit (such as 660V or 710V), so that the DC circuit can release energy by thermal energy after passing through the braking resistor. The braking unit can be divided into built-in and external, the former is ...
	Debugging of basic parameters of inverter - LS power generation There are many functional parameters of the inverter, and there are generally dozens or even hundreds of parameters for users to choose. In practice, it is not necessary to set and debug every parameter, and most of them only need to use the factory setting value. However, some parameters are very closely related to the application of practice, and some of them are still ...
	How LS PLC works Although many names such as relays, timers and counters are often used in the ladder diagram programs used by LS PLC, LS PLC does not have these hardware physically, but uses memory and program programming to do logic control and editing, and connects to external machines through output components.
	The meaning of servo in LS power production "Servo" - the word derives from the Greece word for "slave". People want to treat the "servo mechanism" as a handy tame thing, and act in accordance with the requirements of the control signal. The rotor stands still until the signal comes; As soon as the signal arrives, the rotor rolls; When the signal disappears, the rotor can instantly ...
	The cause of the broken shaft of the motor - LS generates electricity 1. Improper device: The motor is not concentrious with the equipment being dragged, resulting in excessive radial load on the motor, which eventually leads to metal exhaustion. When the radial load on the extension end of the motor shaft is too large, it will cause the motor shaft to have zigzag deformation in the radial direction. When the motor rotates, the shaft's ...
	Manufacturing Automation Terminology – LS Electricity Generation I/O Points: When discussing control systems, I/O points are a term that is often heard. It refers to the input/output point, I stands for INPUT, which refers to the input, and O stands for OUTPUT, which refers to the output. The inputs/outputs are for the control system, and the input refers to the ...
	The inverter selects the appropriate peripheral equipment - LS power generation After we have selected a suitable Variable-frequency Drive (VFD), we also need to consider whether we need to equip other peripheral equipment according to the actual situation of the site. The peripheral equipment selected by VFD mainly includes circuit breakers, reactors, contactors, braking resistors, etc. ...
	Selection principles and key points of AC contactors for power production 1. The coil voltage of the contactor should generally be lower, so that the insulation requirements of the contactor can be reduced, and it is safer to use. However, in order to facilitate and reduce the equipment, it is often selected according to the actual grid voltage. 2. The operating frequency of the motor is not high, such as compressor, water pump, air ...
	Inverter circuit structure - LS generates electricity The main circuit is the power replacement part of the power supply for the asynchronous motor, and the main circuit of the inverter can be roughly divided into two categories: the voltage type is to change the DC of the voltage source to the communication of the DC port of the inverter, and the filter is the capacitor. The current type is to change the DC of the current source to the communication ...
	What are the components of the PLC? The basic components of PLC for power production: 1. Memory 　　　　The memory that registers the architecture software is called the architecture program memory. The memory that registers the application software is called the user program memory. 2. Power supply ...