Shenzhen Olen Electric Co., Ltd.
Address: 201, Building 3, Xinzhongtai Cultural Pioneer Park, Caiyun Road, Longcheng Street, Longgang District, Shenzhen
Phone:+86-400-7887-897 +86-18938020950 Manager Sun
FAX：+86-0755-27495336
Foreword The Yongan Thermal Power Plant has a total of 6 units with a total installed capacity of 350MW. The 6 boilers all burn Fujian anthracite and heavy oil is needed for combustion. To this end, the crude oil storage of Yongan Thermal Power Plant is equipped with three fuel pumps, including one small pump and two large pumps. The relevant parameters are shown in Table 1. They are responsible...
1: The output of the inverter is a PWM wave, which contains more high-order harmonics. The variable frequency power sensor performs AC sampling on the input voltage and current signals, and then passes the sampled value through a transmission system such as cable and optical fiber and the digital input variable frequency power analyzer. The digital input variable frequency power analyzer performs ...
Overview of working principle:The main circuit is the power conversion part that provides voltage and frequency regulation power supply to the asynchronous motor. The main circuit of the inverter can be roughly divided into two categories: the voltage type is the inverter that converts the DC of the voltage source to AC, and the filter of the DC loop is the capacitor . The current type is a...
Frequency conversion energy savingInverter energy saving is mainly reflected in the application of fans and pumps. In order to ensure the reliability of production, all kinds of production machinery have a certain surplus when they are designed with power drives. When the motor cannot run under full load, in addition to reaching the power drive requirements, the excess torque increases the...
Given wayThe common frequency setting methods of frequency converter are: operator keyboard setting, contact signal setting, analog signal setting, pulse signal setting and communication method setting. These frequency setting methods have their own advantages and disadvantages, and must be selected and set according to actual needs.Related question and answerFrequency converterThe frequency...
1. OvercurrentOvercurrent is the most frequent phenomenon of inverter alarm.1.1 PhenomenonWhen restarting, it will trip as soon as the speed is increased. This is a very serious phenomenon of overcurrent. The main reasons are: load short circuit, mechanical parts stuck; inverter module damaged; motor torque is too small and other phenomena caused.It jumps after power on. This phenomenon cannot be ...
Significant effect of system power saving, combined with the actual operation of the enterprise, it is recommended that ceramic enterprises promote the application of a large number.1 Frequency conversion control, power saving, application 1 Preface The ceramic industry is a large energy consumer, and the energy consumption cost accounts for about 1/3 of the total cost. Therefore, reducing energy ...
We can understand the energy internet from two dimensions: information level and physical level. From the information level, the energy internet can be simply regarded as the application of the information internet in energy, meaning the information internet for energy, but this understanding is very one-sided. From a physical point of view, various energy networks such as power grids, natural gas...
In many heavy industry enterprises, the water supply system is a large energy-consuming household, and more than 90% of them are used for pumping water. How to improve the operating efficiency of the pump and reduce energy consumption in a reasonable and effective way is an important part of improving the economic efficiency of the enterprise. There are many ways to regulate the amount of water in...
With the continuous development and improvement of frequency conversion technology, its excellent power saving performance, good starting characteristics and various protection functions have been well reflected in the enterprise, which has saved energy, reduced costs and increased the production of the enterprise. ASD.1. Features of the inverterFrequency conversion speed regulation is the best...
In the mechanical transmission powered by the electric motor, the flow speed control has always been ahead of the AC speed control with excellent performance. However, because the DC motor has brushes and commutators, the maintenance and maintenance workload is large, and there is a limit capacity problem. The field of speed regulation turned its attention to AC motors. After the 1960s, especially...
China's inverter market is currently in a period of rapid growth and is widely used in air conditioning, elevators, metallurgy, machinery and other industries. According to statistics, in the past few years, China's inverter market has maintained a growth rate of 12%-15%, this speed has far exceeded the GDP growth level in recent years, and at least in the next 5 years to maintain 10% The ...
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