The water pump is controlled by a frequency converter – Reynolds

In order to measure stable harmonics, it is necessary to meet the following two conditions: At the top of the list, the signal is a stable periodic signal. Second, it is necessary to perform harmonic analysis according to the integer multiple of the period of the stable periodic signal. ...

Working environment In the actual application of inverters, most people install inverters directly in industrial sites in order to reduce costs. The job site generally has the problems of large dust, high temperature and high humidity, and in some occupations, there are also metal dust, corrosive gases and so on. There must be ...

The lightning protection measures of the inverter equipment are another important peripheral measure to ensure the safe operation of the inverter, especially in the area where lightning is active or in the lively season, this problem is particularly important. Today's inverter products are generally equipped with mines.

Take the RNB2000 series inverter as an example. The model number of the RNB2000 series 37kW inverter is: RNB2037-U RN: on behalf of Reynolds; B: low-voltage frequency conversion governor; 2: 2000 series; ...

Now many electrical appliances are advocating the use of small parts, because small parts will not occupy space, and small parts can be moved and overhauled at any time, and the inverter also has a small inverter, how to buy a small fan inverter? Power picking ...

a. Add the internal impedance of the power supply of the inverterIn general, the internal impedance of the power supply equipment can play a role in buffering the reactive power of the DC filter capacitor of the inverter. This internal impedance is the short-circuit impedance of the transformer. When the power supply capacity is smaller than the inverter capacity, the internal impedance value is relatively large.

The inverter is mainly composed of rectifier (AC to DC), filtering, inverter (DC to communication), braking unit, drive unit, detection unit and microprocessor unit. The inverter adjusts the voltage and frequency of the output power supply by the internal IGBT break, and ...

When the differential pressure flowmeter (V-cone flowmeter) is used in the field, it often encounters such and such problems, but the reason for it is investigated, as long as it is installed correctly, the primary problem is on the secondary surface differential pressure transmitter, and the following is the first to introduce these problems to us ...

Precautions for low-voltage soft starters For cooling purposes, the soft starter must be installed in a straight direction. In order to ensure excellent heat dissipation, there should be room for the soft starter device. Main circuit selection ...

In order for a VFD to operate reliably for a long time, it is necessary to repair the electronic components in the VFD on a regular basis and replace the primary components of the VFD according to the service life. 1. Cooling fan The VFD power module is the most heat-generating device, and its ...

The state proposes to "peak carbon emissions" by 2030 and complete "carbon neutrality" by 2060. Carbon neutrality is to try to reduce carbon dioxide emissions, and eventually achieve net zero emissions, that is, to make carbon dioxide emissions even offset. However, due to economic development, CO2 emissions are stable ...

I often see many beginners tossing on the resistor when overhauling the circuit, and it is dismantling and welding, in fact, it is repaired a lot, as long as you understand the damage characteristics of the resistor, you don't have to bother. Resistors are the most numerous in electrical equipment ...

1. Transfer heat pipes for heat dissipation. In many applications, heat generated from the base steel plate of the power module is transferred through the heat transfer components to the distant surface of the heat pipe. In this way, the temperature of the base steel plate of the power module will be equal to the temperature of the heat pipe heat dissipation surface, the temperature of the heat transfer parts, and the temperature of the two contact ...

The use of Reynolds inverters in industrial production is very important, in addition to speed regulation, soft start effect, the important thing is to be able to save energy. There are many functional parameters of Reynolds inverter, and there are generally dozens or even hundreds of parameters for users to choose. In practice, it is not necessary to ...

Dynamic "fast response" DC motors are rectified constrained and excessively high di/dt is not allowed. The asynchronous motor is only constrained by the capacity of the inverter, and the multiple of the forced current can be very high, so the speed echoes quickly, generally reaching the millisecond level, which has surpassed the DC motor in terms of speed. At low frequencies ...

1. Pole change logarithmic speed regulation method This speed regulation method is to change the number of stator poles of the cage motor by changing the connection method of the stator winding, so as to reach the intention of speed regulation; The wiring is simple, the control is convenient, and the price is low; It can be used in conjunction with pressure and speed regulation, electromagnetic slip clutch to obtain high efficiency ...

The permanent magnet synchronous motor has high-efficiency motor drive performance, which can complete high-speed, high-precision, high-stability, fast-responding, high-efficiency and energy-saving motion control. Reynolds drives provide a vector control technology solution for permanent magnet synchronous motors. ...

Soft starters and frequency converters are two completely different products. The inverter is used in the local area where speed regulation is required, and its output not only changes the voltage but also changes the frequency at the same time; A soft starter is actually a voltage regulator, which is used when starting a motor, and the output only changes the voltage and does not change the frequency. Change...

First, the selection of inverter power The system power is equal to the product of the inverter power and the motor power, and the system power is higher only when both are operating at a higher power. From the perspective of power, when selecting the power of the inverter, we should pay attention to the following points: 1) ...

Because inverters are widely used, there are many differences in the corresponding types and specifications. We are broadly divided into two categories: voltage and current. The current type of inverter products is characterized by the use of a large inductor as the energy storage link in the middle DC link, and the reactive power will be buffered by this inductor. ...