Delixi plastic case circuit breaker is also called equipment circuit breaker, the external contact of the grounding terminal, arc extinguisher, tripper and operating organization are installed in a plastic shell. Auxiliary contacts, undervoltage trippers, parallel trippers, etc. Most of them are modular, the structure is very compact, and generally does not consider maintenance, and is suitable for branch maintenance switches. MCCBs typically contain a thermomagnetic trip unit, while large MCCBs are equipped with a solid-state trip sensor.
Molded case circuit breakers have electromagnetic and electronic overcurrent trippers. Electromagnetic molded case circuit breakers are generally non-selective circuit breakers, and there are only two maintenance methods: long-delay and instantaneous. The electronic molded case circuit breaker has four maintenance functions: long delay, short delay, instantaneous and ground fault. Some new MCB products also have a region-selective interlocking function.
Molded case circuit breakers are generally used for the control and maintenance of distribution feeders, the main switch of the low-voltage side outlet of small distribution transformers, the control of distribution terminals, and the power switch of various production machines.
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The type of inverter is selected according to the type of production machinery, speed regulation range, static speed accuracy, and starting torque requirements, and it is most appropriate to decide which inverter is the most suitable to use. The so-called suitability is not only easy to use, but also economical, to meet the basic conditions and requirements of technology and production.
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Delixi surge protector SPD technology is used
Since its creation in the 1970s, which began as a patent for Zap Trap under the pleasant name, surge maintenance equipment (SPD) has become essential in many lightning protection systems (LPS).
Surge maintainers are now used in electrical installations to avoid transient overpower ...
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Delixi contactor selection considerations
Electrical safety is not a trivial matter in modern society. Delixi communication contactors are used in homes, public places or commercial buildings. As a power device, its importance is self-evident. If you buy an unsuitable communication contactor, it will appear briefly in the future application process ...
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How to adjust the output voltage of Delixi voltage regulator
1. How to disassemble the voltage regulator
Generally, there are screws on the shell of the voltage regulator, please disconnect the power supply first, and then remove all the screws on both sides to take off the shell.
After the regulator shell is disassembled, the circuit, copper coil, carbon brush, etc. inside will be revealed.
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The choice of Delixi miniature circuit breaker
(1) Type selection. Depending on the application, select different circuit breakers. Circuit breakers are generally divided into power distribution, lighting, motor maintenance, thyristor maintenance and leakage maintenance.
(2) Selection of the number of poles. It should be based on different installation environment conditions.
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Precautions for the use of Delixi stabilized power supply
1. The use environment of regulated power supply requires good ventilation, no moisture, no corrosive gas, explosive substances, conductive dust Egypt steam, etc., and it is required to be installed in places without intense oscillation.
2. The voltage regulator is used according to the function of the electrical equipment.
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The circuit breaker is set in accordance with the principle - Delixi circuit breaker
1. When the main circuit is equipped with a total leakage maintainer, the main barrier switch, the branch barrier switch, the main circuit breaker, the branch circuit breaker or the main fuse, and the shunt fuse should also be installed. When the total leakage maintainer is a leakage circuit breaker with short-circuit, overload, and leakage maintenance functions, it can not be ...
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What are the main series of Delixi switches
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2 ...
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Methods for preventing breakdown of transformer insulation
1. Avoid water and air entering the transformer
(1) The transformer should be protected from water ingress and moisture during operation, and it is necessary to seal well the cap of the casing item, the top of the storage phase, the bushing pipe and its connecting pipes. If necessary, a leak detection test should be carried out, and if the insulation has been found to be damp, it should be adopted in time.
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Thermal calculation of linear regulator - Delixi
Thermal accounting requires information such as power loss, thermal resistance of the package, and ambient temperature. The power loss is calculated in the same way as the efficiency accounting, which is simply the value of the difference between the output input voltage and the input current. The thermal resistance should have a technical standard documented, and if it is not, it is necessary to ask the manufacturer. Basically...
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Voltage regulator power selection and determination - Delixi
1. The output power of the voltage regulator is the maximum power
Basically, most of the nominal power of household appliances refers to active power, and the so-called refrigerators, air conditioners and those water pumps used in the home, etc., most of them are also inductive loads that start instantaneous currents.
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Delixi inverter selection points
Variable-frequency Drive (VFD) is an electric power control equipment that uses frequency conversion skills and microelectronics skills to control and communicate motors by changing the frequency of the working power supply of the motor. The inverter is mainly composed of rectifier (communication to DC), filtering, inverter (DC to ditch) ...
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The scope of use of Delixi universal inverter
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Delixi inverter alarm parameter check method
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Delixi integrated voltage regulator knowledge
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Delixi inverter load type
The correct choice of Delixi inverter is very critical to the normal operation of the control system. When selecting a frequency converter, it is necessary to fully understand the load characteristics driven by the frequency converter. In practice, people often divide production machinery into three types: constant torque load, constant power load and fan, water pump ...
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Delixi circuit breaker mechanism spring design
The spring is a widely used component in the circuit breaker mechanism, and the critical spring has a great impact on the function of the circuit breaker. From the perspective of energy, combined with the installation space of the tension spring, the author uses the existing accounting formula of the tension spring to solve the unknown quantity from the known quantity to obtain the required tension spring parameters.
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The reason for the whitening of the copper bar installed on the Delixi plastic case circuit breaker
In the project, because of the 630 A circuit breaker wiring bar in the 500 kVA box-type transformer, see the second circuit breaker and circuit breaker on the left in the figure. The temperature of this corresponding region is significantly higher than that of the other two corresponding regions, and the other two phases are also hot, and the copper bars of this phase have turned white. There is no induction Deli ...
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Delixi fan and pump load frequency conversion selection
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Lifting...
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Delixi CDRA soft starter features
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