Medium Voltage Drive

Medium Voltage Drive: HARSVERT-A series of Medium Voltage Drive 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 synchronous motors are in the final stage of development. HARSVERT-A series of medium voltage VFD manufactured with the new type of IGBT with microprocessor control have the qualities as follows: 1. Voltage resource VFD, direct input of 3,3.3,4.16,6,606 and 10 kV, direct output of 3,4.16, 6,6.6 and10 kV, no output transformer necessary. High input power factor, low harmonic current, no power factor corrective capacities and harmonic filters required. 2. 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, reduction of vibration of the shafts or the vanes, with the maximal length of the output cable of 1000m. 3. Friendly human-machine interface. 4. Modular design of the power circuits simplifies maintenance routine. 5. The medium voltage circuits are linked with the controller by the optical fibers, which keep the controller safe and away from the disturbance. 6. The complete fault monitor circuit, accurate fault alarm and protection. 7. Integrated cooling blower 8. The control logic can be conveniently changed with the help of the integrated PLC. 9. Offer both field control and remote control in monitor station, providing convenient controlling options. 10. Support most of the industrial standard protocols (Profibus, Modbus,TCP/IP, etc.) 11. Compatible with industrial standard signal of 0-10V/4-20mA 12. Able to operate at either open loop control or closed loop control status with the integrated PID regulator. 13. Complete system parameter setup function of VFD 14. Easy installation 15. Excellent performance/price ration Possible application HARSVERT-A series of Medium Voltage Variable Frequency Drive can usually beapplied in these fields: 1. Power generations: induced draft fans, condensate pumps, water supply pumps,etc 2. Metal: dusting fans, furnace fans, oxygen-generators of steel productions,etc 3. Petrochemical and chemical; oil transfer pumps, compressors, 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 variable frequency drive achieves industries, large power and flux control, which saves vast energy compared with the control by using the wind shields 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 variable frequency drive series have remarkably high control accuracy, which can completely satisfy the technological requirements while, in addition, save vast energy. Following standard HARSVERT-A series of Medium Voltage VFD satisfy the standards below as well asrelated clauses of those standards. All standards are valid at the point ofsales. Q/CP BLH003-2004 The HARSVERT-A medium voltage VFD series universal specification GB156-2003Standard Voltage GB191-2000Packaging-Pictorial marketing for handling of goods GB/T 1980-1996 Standard Frequency GB/T 2423.10-1995 Environmental testing for electric and electronic products-Part 2: Test methods-Test FC and guidance, Vibration (Sinusoidal) GB/T2681Colors of insulated conductors used in electrical assembly device GB/T2682Colors of indicator light and push buttons used in electrical assembly device GB/T 2900.1-1992 Electro technical terminology-Fundamental terms GB/T 2900.33-1993 Electro technical terminology-Powerel ectronics GB/T 2900.34 Electro technical terminology-Electric drive and automatic control GB/T3797 Electrical controlling gear-Part 2: Electrical controlling gear incorporating electronic device GB/T 3869.1-1993 Semiconductor converters-Specification of basic requirements GB/T 3859.2-1993 Semiconductor converters-Application guide GB/T 3859.3-1993 Semiconductor converters-Transformers and reactors GB 4208-1993Degrees of protection provided by enclosure (IP code) GB/T 458801-1996 Sectional specification: single and double-side printed boards with plain holes GB/T 4588.2-1996 Sectional specification: single and double-side printed boards with plated-through holes GB/T7678Semiconductor self-commutated converters GB 9969.1-1998 Manual of industrial product, and its universal principles. GB/T 10233Basic testing method for Electrical driving control gear assemblies GB/T 12668.2-2002 Variable speed electrical power driving system Part 2: Universal requirements-Rating specifications for low voltage frequency system GB/T 13422-92Semiconductor power VFD experimentation standard GB/T 14436-93Electrical equipment configuration technique condition