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Characteristics of two-phase electric fan inverter - Sunland inverter
The digital signal processor is selected, and the work efficiency is higher
A good quality two-phase electric fan inverter uses a digital signal processor, which can make the work efficiency higher, that is, it may take 3 hours to complete the work, but now it only takes 2 hours to be able to...
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How to carry out electrical system commissioning quota? ——Sunland inverter
The commissioning of the electrical system refers to the commissioning of the entire high and low voltage system. The power supply commissioning of civil electrical projects such as general residences, schools, office buildings, hotels, and shops shall be carried out in accordance with the following provisions:
(1) About the commissioning of the belt in the distribution room ...
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The cause of vibration and noise in the inverter - Sunland inverter
Generally speaking, the inverter will inevitably present some problems during operation, such as oscillation and noise, which are common problems in VFD operations. So, what causes oscillation and noise in VFDs? What is the solution to these problems? Here are the causes of VFD oscillation and noise ...
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The manufacturing standard of Sunland inverter cabinet
Planning specifications: The planning of inverter cabinets should conform to relevant national norms and industry norms, such as GB/T15576-2018 "Low-voltage Distribution Cabinet", GB7251.1-2017 "Low-voltage Complete Switchgear and Control Equipment", etc.
Material specifications: The materials of the control cabinet should conform to the relevant codes and regulations.
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Get to know the capacitor of the inverter - Sunland inverter
1. The capacitance is generally indicated by "C" plus a number in the circuit (e.g., C25 indicates the capacitance numbered 25).
A capacitor is a component composed of two metal films close to each other and separated by an insulating material in the center. The characteristic of the capacitor is first and foremost the communication through the DC block. The size of the capacitance is ...
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Senlan brought its products to the Guangxi International Sugar Technology and Equipment Exhibition
Recently, it is expected that Sunland will successfully participate in the 8th Guangxi World Sugar Industry Skills and Equipment Expo with excellent inverter products. According to the expected Sunland company leakage, the exhibition of the World Sugar Industry Skills and Equipment Expo, throughout the exhibition to domestic equipment manufacturers, there is no lack of foreign outstanding enterprises, exhibitors ...
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Inverter classification method - Senlan inverter
1. Classified according to the input voltage level
According to the input voltage level, the inverter can be divided into low-voltage inverter and high-voltage inverter, and the low-voltage inverter is common in China with single-phase 220 V inverter, three-phase 220 V inverter, and i-phase 380 V inverter. High-voltage inverters are commonly used in 6 kV, 10 kV transformers.
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Inverter line control mode - Senlan inverter
Each inverter (Variable-frequency Drive, VFD) is subject to different line control, and the methods of voltage control and current control can be divided into two categories, one is voltage type and the other is current type. The control mode can also be divided into voltage control and current type. The main circuit method and ...
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Heat dissipation method of small-capacity inverter - Senlan
Natural heat dissipation methods are generally used for heat dissipation of small-capacity inverters, because their operating environment should be well ventilated and free of dust and floating objects. The dragging objects of this type of inverter are mostly household air conditioners, CNC machine tools, etc., and the power is small.
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Sunland inverter does not show fault repair
After inspection, the circuit board of the machine is composed of a fan switching power supply board, a control board with a switching power supply and a driving board, etc., the fan power supply and the control board operation power supply are independent of each other, the fan power supply output is normal, and the control board operation power supply is not output due to the problem.
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Inverter rectifier unit static detection mode
The method of judging the damage of a power element in the rectifier part is to manipulate the single conductivity of the rectifier element, and the positive and negative resistance values should not be consistent when the static value is general, and the specific method is as follows:
The three-phase bridge rectifier of the rectifier part may be two...
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Sunland inverter breakdown factor
1. Overpressure leads to brake pipe breakdown.
The so-called overvoltage of the inverter refers to the fact that the inverter voltage composed of various reasons exceeds the rated voltage, which is reflected in the DC voltage of the inverter DC bus.
The overvoltage alarm generally appears at the time of shutdown, and its main ...
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Sunland SBH series high-voltage inverter eight development direction cases
The following application case of Sunland SBH series high-voltage inverter is a very comprehensive display of the eight development directions of high-voltage inverter
High-voltage inverters, petrochemicals, mining, electricity
Application plan 1 petrochemical occupation: Senlan twin ...
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Rapid selection method of low-voltage inverter - Sunland inverter
First, according to the classification and selection of inverters
1. Inverters can be divided into general-purpose inverters and special inverters.
2. General-purpose inverters are mainly used in: general fan pumps (referring to inverters that only drag a single fan or pump) loads, mechanical loads, and loads requiring high overloads.
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Inverter overcurrent treatment method - Senlan inverter
Overcurrent or overload of the inverter is a common problem of the inverter, and overcurrent refers to the value of the current flowing through the inverter beyond its additional range.
1. If the power supply of the inverter is out of phase, the circuit at the output end is disconnected or the motor winding ...
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Analysis of soft start technology of asynchronous motor - Senland
The thyristor communicates the voltage regulation and soft starts
The communication and voltage regulation soft engine of the thyristor is mainly to change the connection method of the thyristor, and the traditional connection method is changed to connect to the three windings, so that the power supply of the thyristor is completed by the method of parallel connection. Thyristor soft starters have a strong ...
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The main circuit of the inverter application - Sunland inverter
Between the power supply and the inverter, there is a circuit breaker QF and a communication touch device KM, when the inverter does not have to for a long time. or when the equipment is overhauled, the circuit breaker is used as an isolation switch, which can block the power supply and ensure the safety of maintenance. At the same time, the circuit breaker has maintenance functions such as overcurrent and undervoltage. The main circuit of the inverter can ...
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Senlan low-voltage inverter has four series of applications
1.SB200 fan pump special inverter, widely used in textile, printing and dyeing, washing, cable, packaging, machinery, ceramics, constant pressure water supply, constant temperature control or various OEM.
2.HG1000 high-performance light-load intelligent inverter ...
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Misunderstandings and countermeasures of industrial control inverter - Senlan
Today, with the rapid development of science and technology, with the continuous improvement of industrial automation, inverters have also been widely used. Choosing a suitable inverter is very important to ensure the normal and efficient work of the inverter, but in practice, it is necessary to pay attention to some ...
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Senlan SV1000 servo drive wearing parts replacement
The wearing parts of the driver mainly include electrolytic capacitors for filtering and cooling fans, and their service life is closely related to the environment and maintenance of the operation.
Depending on the operating moment, the user can determine whether a wear part needs to be replaced.
Cooling ...
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