The system power is equal to the product of the power of a general-purpose inverter and the power of the motor. As long as both work efficiently, the system power will be higher. From the perspective of power, when choosing VFD power, you should pay attention to the following points:
When the VFD power value is close to the motor power value, it is most suitable to facilitate the VFD to work at high power values.
If the power rating of the VFD is not the same as the power rating of the motor, the power of the VFD should be as close as possible to the power of the motor, but it should be slightly greater than the power of the motor.
When the motor is frequently started, braked or started under heavy load and works frequently, a larger VFD can be selected to use VFD to work for a long time and safely.
After testing, the theoretical power of the motor is indeed left, and you can consider choosing a VFD with a power less than the motor power, but pay attention to whether the instantaneous peak current will constitute an overcurrent maintenance action.
When the VFD and the motor power are not in the same direction, it is necessary to adjust the settings of the energy saving program accordingly to achieve a higher energy saving effect.
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Reynolds soft starter features:
The Reynolds soft engine is a new type of software launcher that can assist users in quickly launching and closing the computer system. It was developed by Reynolds and its main function is to provide a fast, safe and reliable software launcher that can assist users in quickly launching and closing ...
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Reynolds high-speed permanent magnet synchronous motor dedicated driver
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 ...
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Operating instructions for the Reynolds control panel
1. FUN button; Press the FUN button to enter the settings menu F00;
2. Press and hold the up button or down button to scroll to the code that needs to be set;
3. Press the FUN button to confirm at this moment, and adjust the entry parameters to the required value;
4. After the adjustment is completed, press the WR storage button, and then the panel will display the ...
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The cause of the damage of the inverter - Reynolds inverter
What are the causes of inverter damage?
First, the heat dissipation of the inverter is not good
In fact, we all know that too high a temperature can have a damaging effect on any device, just like the human brain, too high a temperature can also burn out the brain ...
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Reynolds EPS emergency power supply routine maintenance
1. EPS the first use of the emergency power supply, the battery pack should be charged continuously for 48 hours after discharging protection;
2. EPS emergency power supply to keep the whole machine dry, clean, free of dust and foreign objects, wipe with a soft cloth after shutting down, and strictly ...
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Misunderstanding of inverter selection - Reynolds
1. In order to save power, the inverter is selected
Many manufacturers and salesmen praise how high the power-saving rate of the inverter is, and the user also believes that it is true, and the inverter is selected at a high cost simply in order to save electricity, but the results are greatly disappointed.
Whether the inverter can save power after using it is determined by the load driven by it.
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The Reynolds SVG series was successfully completed
More than 40 sets of RNSVG series low-voltage power generator sets and RNZB series high-voltage reactive power automatic compensation devices designed and produced by Reynolds have been successfully completed and will be delivered in the near future.
This product is owned by Shanghai Reynolds ...
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Motor soft start mode – Reynolds frequency inverter
Starting performance is a very important performance parameter of motor products. The large starting current of the motor is an unpreventable problem in the process of direct starting. The high current during the engine process has a great impact on both the power grid and the motor itself. Therefore, according to different working conditions and different series of motors, ...
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Soft start uses common faults and solutions - Reynolds
In the process of daily use of soft starters, it is inevitable to encounter some improper use or failure of soft starters in the process of use
1. The user starts ...
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Precautions for installation of Reynolds low-voltage inverters
1. Safety precautions
1. The primary requirement is to have certain electrical professional knowledge, and understand the job site, understand the equipment status, and have certain electrical operation technology.
2. Determine the electrical ...
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The main failure mode of mechanical parts – Reynolds
The top failure modes of mechanical parts:
Failure: The mechanical part cannot complete its normal function within the planning and booking period and under the regular conditions.
Ways in which mechanical parts fail: overall cracking, plastic deformation, corrosion, abrasion, gluing, and touch exhaustion
General ...
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Inverter installation and heat dissipation treatment - Reynolds
The inverter has power loss during operation and converts it into heat energy, which increases its own temperature. Roughly speaking, the power loss of every 1kVA inverter capacity is about 40W-50W. Therefore, when installing the inverter, it is necessary to consider the heat dissipation of the inverter, and how to run the inverter.
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Structural characteristics of Reynolds RHY series inverter governor
1. Advanced technology: (PC or PLC) is used to make the equipment complete the intelligent constant pressure variable supply water supply according to the requirements of water supply and fire protection;
2. High efficiency and energy saving: the system can set the pressure according to the demand, and the system can actively adjust according to the set pressure.
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Rated current analysis of inverter leakage circuit breaker
The output of the inverter is controlled by PWM (pulse width modulation, similar to high-speed switching), so a high frequency leakage current will occur, if you want to install a general leakage disconnect switch on the primary side of the inverter, it is recommended to select a sensitivity current of more than 200mA for each inverter and the action time is 0.1 seconds ...
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Features of electronic single-phase current transmitter – Reynolds
Single-phase current transmitter is a kind of electric power test substation developed for the power measurement of single-phase communication in motor experiments on the basis of motor experiment and testing technology research, in accordance with IEC and relevant national specifications for motor experiments. The use of advanced filtering technology, reasonable software algorithms, ...
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How to deal with the inlet water of the inverter - Reynolds
Inverters are widely used in all walks of life, in a variety of applications, inverters will inevitably encounter rainy and humid climate, resulting in internal wetness, or accidentally into the water, in fact, as long as it is found in time, it can still be rescued.
If it is in the unpowered state ...
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Features of Reynolds high-voltage frequency converters
RNVH-A series high-voltage inverter adopts multi-unit series multi-level technology, which is attributed to high-high voltage source inverter, which can directly input 6KV/10KV and direct 6KV/10KV output. Taking the 6KV series as an example, each phase is connected in series by 5 power units, and each power unit is isolated by the input transformer.
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Reynolds inverter control method
The actuator commonly used in the industrial field of Reynolds inverter has good speed regulation performance and simple and convenient operation method. Therefore, it is widely used in the automation system.
Typical wiring method for the main circuit of a Reynolds frequency converter
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The difference between "braking" and "parking" of the inverter - Reynolds
There are two types of inverter parking.
One form is called "free parking". As the name suggests, it is to quickly "power off" the motor, so that the motor can slide and park by its own inertial force (OFF2 parking);
The other form is called "brake parking". So this "brake parking ...
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Common faults and solutions of vector inverter - Reynolds
The following faults may be encountered during the use of the inverter, please refer to the following methods for simple fault analysis:
1. No manifestation at power-on:
1) Use a multimeter to check whether the input power supply of the inverter is consistent with the rated voltage of the inverter, and check the cleaning problem.
2) ...
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