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Pwm Ac Voltage Regulating Power Supply For Polycrystalline Ingot Furnace - China

price: contact company for price

I. Product Introduction

   

PWM AC voltage- regulating power supply for polycrystalline ingot furnace is a three- phase PWM AC voltage- regulating power supply which is specially designed for solar polycrystalline silicon ingot furnaces. As a three- phase AC voltage- regulating controller with sinusoidal voltage waveform, it adopts high- precision power closed- loop control and realizes the adjustable output voltage magnitude at the secondary side of the load- matching transformer by the voltage regulation of the three- phase PWM AC controller at the primary side of the load- matching transformer. With multiple given control signal selections and isolated conversion & output of output voltage, current and power at the secondary side of the load- matching transformer, it is convenient for the communication of PLC and the host computer, which facilitates the remote monitoring. In the entire work process, the power factor of the power supply is higher than 0.96, the total harmonic distortion of current THDI is less than 6% and the conversion efficiency of the power supply is more than 0.98. Under the condition that no any power factor compensation and harmonic wave absorption apparatus is attached, the power factor and harmonic wave have met the standard requirements of the State Grid, so it is really a new generation of ideal green power supply substituting for three- phase SCR voltage regulator.

II. Performance Indexes

1. It adopts cabinet- type integrated design.

2. Constant power closed- loop control.

3. It has an automatic current- limiting function, when the output current is equal to or greater than 1.1 times of the rated current, the current will be limited.

4. It has soft start and soft turn- off functions.

5. The constant power precision is above 0.2% and the system resolution ratio is higher than 0.5‰.

6. It is equipped with a LED numeral display tube, which is convenient for setting various functional parameters and displaying electrical parameters.

7. It has phase- deficient, overcurrent, overheating, load disconnection and three- phase unbalance protection functions.

8. Automatic phase- sequence confirmation function.

9. Fault self- diagnosis function.

10. PF≥ 0.98, THDI≤ 6% and η ≥ 0.96.

11. Isolated conversion & output standard signals of output voltage, current and power.

12. With RS485 communication interface and MODEBUS communication protocol, it can communicate with PLC and the host computer, which is convenient for remote monitoring.


Company Contact:


  • Phone: 86051258105999

  • Address: Province Industrial Zone(South),Zhangjiagang City,, Zhangjiagang, China

  • Email: Email


Published date: October 26, 2014 -

  • Business Description: Jiangsu Eastone Technology Co.,Ltd. Is a high and new tech enterprise in

    research and production of green and effective power supply,which

    undertook national and provincial torch projects for several times and

    obtained multiterms national innovation funds. Our products have high

    power switch power supply, PWM AC voltage regulator, PWM DC front power

    supply,all solid intermeditate frequency and high frequency electric

    source, and intelligent thyristor Ac voltage regulator, hich are used as

    heating and smelting power for new energy and new material industry.

    Just like the numerous enterprises which are involved in global economic integration, Eastone is always making efforts in searching the development road, we have improved and exceeded a lot. Eastone people who are hardworking ,intelligent , open minded and sincere are warmly looking forward to advancing and cooperation with all walks of life relying on the innovation spirit of brave,intelligent, heightened awareness and development, so as to provide the most professional and superior products and services and promote the green power industry.

    Company fully implement ISO9001 international quality management system, always seeking "attention to market demand, technical innovation, strengthen scientific management, abide by the pledge, the pursuit of excellence, and create the industry name brand" quality. Pay close attention to market trends and industry trends, understand customer needs, the use of advanced technology, materials, technology, timely development of high tech new products, constantly updated upgrade products to meet the needs of social development, for walking in the front of peers; relying on science the management of the enterprise management level and product quality is improving, with first class products, low prices, high quality service win the trust of customers, customer satisfaction as the survival of the enterprise would have achieve our commitment to customers. Our aim is to enhance customer satisfaction, enhance corporate image and achieve quality objectives, and create a brand industry to achieve higher business goals.

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