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High Voltage Variable Frequency Drive VFD for Petro Chemical Industry
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Product Details
Brand Name: | GANDO | Place of Origin: | China | Model Number: | 3KV –Zinvert - __KW |
Product Description
Certification:CE
High Voltage Variable Frequency Drive VFD for Petro Chemical Industry
ZINVERT series high-voltage variable frequency control system is mainly applied in fan, pump and other load site where lots of energy is saved by speed regulation and the specific application is as follows:
Cement manufacturing: kiln draught fan, draught fan for raw material , pressure fan, main dust-absorption fan, dust-absorption fan for cooler, exhaust fan for cooler, fan for preheating tower, fan for separator, kiln air supply fan and others.
Features
ZINVERT series high-voltage variable frequency control system is applicable to standard medium-voltage ((3kV, 6kV and 10kV)) three-phase AC motor and its features are as below:
1 Small input harmonic
The rectification technology of 18 or 24 (for 3KV system with Level 3 or Level 4 unit series), 30 or 36 or 48 or 54 (for 6kV system with Level 5 or Level 6 or Level 8 or Level 9 unit series) and 54 or 60 (for 10Kv system with Level 9 or Level 10 unit series) is adopted in ZINVERT series high-voltage variable frequency control system at power supply side, the pollution for grid side harmonic is low, the power factor is high and the requirements of GB 14549-93 standard and IEEE std 519-1992 electricity quality standard for voltage and current harmonic distorting are reached, the power factor compensation or harmonic suppressor is not required and the harmonic interference for other electrical equipments on the same power grid never occurs.
2 High power factor
ZINVERT series high-voltage variable frequency system maintains high power factor in full speed and the power factor in full load is over 0.95 so as to reduce low use ratio of user’s power transformer equipment caused by low power factor and power factor compensation in user side.
3 High efficiency
The full load power of ZINVERT series variable high-voltage variable frequency control system is more than 95%, which is far more than that of traditional speed control system.
4 Strong adaptability of input voltage
When voltage fluctuation value of power grid input side compares with rated voltage in -15%~+15%, the output shall be compensated by voltage fluncuation compensation way to ensure rated output; the machine is never stopped when grid side voltage takes value from 65% rated value 115% rated value so as to ensure motor in continual operation (the low power voltage may result in derating operation ).
5 Small output harmonic
The phase-shifting and multiple sinusoidal pulse width modulation (SPWM) and speed sensor-less vector control system technology are adopted at output side of ZINVERT series high-voltage variable frequency control system, the output harmonic is very small and it can match different motors without output filter. It is characterized by low output voltage distortion, less current harmonic, running noise of motor not increased, extra heating of motor avoided, torque pulsation reduced and mechanical stress of equipment reduced.6 High reliability and convenient maintenance
The power loop of ZINVERT series high-voltage variable frequency control system adopts IGBT power module, with large voltage design allowance and the special drive module with excellent reliability is adopted in trigger and overcurrent protection of IGBT module.
The dual-DSP and super-large-scale integration technology is adopted in core control system of ZINVERT series high-voltage variable frequency control system, the design of industrial server owns reliable electromagnetic protection function and it integrates high-voltage variable frequency control and professional motor protection. The complete system owns perfect failure location and protection function. The trebling output interphase short circuit protection and overvoltage suppressor are especially designed as for interphase short circuit and failure in single phase earthing that may occur in motor and cable, thus, the product is safer and more reliable (The first manufacturer passes inspection by national authorized organization in all protection functions, interphase short circuit also included).
ZINVERT series high-voltage variable frequency control system is designed in modularization, the structure design is perfect, the unit components have interchangeability and simple tools and the component can be replaced within several minutes with simple tools if failure occurs.
ZINVERT series high-voltage variable frequency control system is provided with power unit automatic bypass technology so that the system with failure can remain in operation so as to enhance system reliability and use ratio of user equipment, thus, it is applicable to power plant and other industrial site with high requirements for reliability.
7 Outa
Contact Us
- GANDO INTERNATIONAL (HONGKONG) LIMITED
- Contact nameAnky Co
- Phone86-592-5020409
- Address701 of NO.69, xilinxili, siming, xiamen, China Shangluo,Shaanxi
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