Company: Beijing Leader & Harvest Electrical Technologies Co., Ltd.
Established: n/a
Description: Beijing Leader and Harvest Electric Technologies Co.,Ltd. is a high-technology company focusing on research, development, manufacture, sales and service of the medium voltage variable frequency drive (VFD). Its registered capital is 5.8 million US. Now it has 650 employees, 30% of which are technical engineers, and more than 10% of which are upper than master degree. The companies headquarter lies in Yangfang Industrial Development Zone of Changping South District. The enterprise has got the certificates of ISO 9001 and CHINA TOP BRAND.

We already have sold lots of VFD in China and arond the world. We still want to expand our selling market. Installing VFD in your company will save lots of electric engery and increase your profit. HARSVERT-A series of medium voltage VFD are designed to be highly reliable with high-performance, yet easy to use. It can satisfy users' need for changing the speed of fans or pumps, as well as improve the productivity. The series are compatible with all types of three-phase medium voltage asynchronous motors. The VFDs which are compatible with medium voltage synchroneous motors are in the final stage of development.

HARSVERT-A series of medium voltage VFD manufactured with new type of IGBT with microprofessor control have the qualities as follows:

• Voltage resource VFD, direct input of 3, 3.3,4.16,6,6.6 and 10 kV, direct output of 3,4.16,6,6.6 and 10 kV, no output transformer necessary. High input power factor, low harmonic current,no power factor corrective capacities and harmonic filters required.
• Sinusoidal multi-level PWM output waveform, no output filter required, can be directly connected to standard induction motor, no harm to the insulation of the cable or the motor, low harmonics of the motor, reducation of vibration of the shafts or the vanes, with the maximal length of the output cable of 1000m.
• Friendly human-machine interface.
• Modular design of the power circuits simplifies maintenance routine.
• The medium voltage circuits are linked with the controller by the optical fibers, which keep the controller safe and away from the distrubance.
• The complete fault monitor circuit, accurate fault alarm and protection
• Integrated cooling blower
• The control logic can be conveniently changed with the help of the integrated PLC
• Offer both field control and remote control in monitor station, providing convenient controlling options.
• Support most of the industrial standard protocols (Profibus, Modbus, TCP/IP etc.)
• Compatible with industrial standard signal of 0-10V/4-10mA
• Able to operate at either open loop control or closed loop control status with the intergrated PID regulator.
• Easy installation
• Excellent performance/price ration.

HARSVERT-A series of medium voltage VFD can usually be applied in lots of fields such as:

1. Power generation: induced draft fans, condensate pumps, water supply pumps, etc
2. Metal: Dusting fans, furnace fans, oxygen-generators of stell production, etc
3. Petrochemical and chemical: Oil transfer pumps, compressor, pumps, etc
4. Mining: mortar pumps, fans, etc
5. City construction: Water supply pump, compressors of large air conditioning, etc.

In the above industries, large power fans and pumps' applying of the HARSVERT-A series of medium voltage VFD achieves smooth speed and flux control, which saves vast energy compared with the control by using the wind shield or valves. Under certain circumstances, users' technological need is the reason of changing the speed of the fans and pumps. The HARSVERT-A medium voltage VFD series have remarkably high control accuracy, which can completely satisfy the technological requirements while, in addition, save vast energy. You can come to our company and look at our products. You can check, test and visit our company. If you are interested in our products and technology, please let me know. I can tell you more about our company, products and technology in next mails. If you are intersted, you are kindly invited to visit our company in Beijing too. We are planning to extend our international market and want to do business with you.
1: VFD (Variable Frequency Drive)
2: Power Equipment
3: Power Supply
Classification: Manufacturer
Target Markets: WORLDWIDE - All Regions
Tel: 86-13811798541
Fax: 86-1069764853
Address: Changping
City: Beijing
State/Province: n/a
Zip/PC: 102205
Country: China
URL: http://www.ld-harvest.com
Contact: Mahesh Thapaliya

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