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ShenZhen INVT Electric Co., Ltd.
Group: INVT Electric
Catalog excerpts
Your trusted industry automation solution provider iiwt_SHENZHEN INVT ELECTRIC CO., LTD. Service line:86-755-86312859 E-mail:overseas@invt.com.cn No. 4 Building, Gaofa Scientific Industrial Park, Longjing, Nanshan District, Shenzhen, China Electric Drive: ■ Frequency Inverter Industrial control: ■ Servo & Motion Control New energy: ■ SVG ■ Intelligent Elevator Control System ■Traction Drive ■ Motor & Electric Spindle ■ PLC ■ HMI I Solar Inverter I UPS I Online Energy Management System INVT Copyright. Information may be subject to change without notice during product improving. CHH100 SeriesMedium Voltage Drive ii\vt
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CHH100 Series Medium Voltage Drive Applications of CHH100 series medium voltage drive As a new generation of medium voltage variable frequency speed regulating devices developed and produced by INVT, CHH100 series medium voltage drive adopts a mature power unit tandem technique and therefore have stable and reliable work. The control system is designed with multiprocessing control architecture and use DSP + FPGA. So its control accuracy and response speed are improved significantly. The output side uses the phase-shifting multiple pulse width modulation (PWM) technology, so it has an...
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• Converter Circuit Topology Principle of speed regulation of CHHI00 series medium voltage drive cabinet Control principle of CHH100 medium voltage drive (1 )lnput Terminal: Each power unit of a medium voltage drive is electrified by a secondary winding of a phase-shifting transformer. Different secondary windings have a certain phase difference (20°for 3kV, 12°for6kV and 7.5°for lOkV), thus eliminating the harmonic current generated by the rectification part of the power units, alleviating the interference of the medium voltage drive in the line side and improving the power factor of the...
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Composition of CHHI00 series medium voltage drive ACHH100 series medium voltage drive consists essentially of a switch cabinet (optional), a buffer cabinet (if the power is large), a transformer cabinet, a power unit cabinet and a control cabinet. • Transformer Cabinet The transformer cabinet holds a dry type medium voltage phase-shifting isolation transformer. On the primary side of the phase-shifting isolation transformer, the current waveform after the superposition of the converted currents on the secondary side is very close to a sinusoidal waveform. Consequently, the harmonic...
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Below is a picture of an lOkV (630kW) medium voltage drive consisting of a transformer cabinet, a power unit cabinet and a control cabinet. The control cabinet is the core of a speed regulation system of the medium voltage drive. It executes logic processing and computation, controls the motions of the power units and drives the motorforoperation. The dry-type medium voltage isolation phase-shifting transformer is installed in the transformer cabinet, which can greatly improve the voltage waveform on grid side, efficiently suppress the harmonics and markedly enhance the reliability of the...
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Main Parameter Setting Interface Main Interface of Start /Stop Function Setup Main interface for running statement monitoring Main Interface of Operation Log Main interface fordisplaying the current operation mode Main interface of Storage and Display Setup
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(1)High Reliability Thanks to their high integration and fully digital control systems, CHH100 medium voltage drive have great anti-interference capability. With dual redundant powersupply design forthe control systems, CHH100 medium voltage drive have higher reliability. CHH100 medium voltage drive have abundant power unit monitoring functions covering the temperatures of all power units and the voltages of all DC bus. They can make adjustments for systems in advance as per the monitored data to avoid faults. CHH100 medium voltage drive have a power unit bypass function. After a power unit...
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Design standard of CHHI00 series medium voltage drive
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CHHIOO—IOkV series Model of Medium Voltage Drive Instructions to model selection: 1 .The switch cabinet is optional. Content "Dimensions and weight of the medium voltage drive" in the model selection table above excludesa switch cabinet. If a switch cabinet is necessary, the user should make it clear when placing the order. 2.For a lOkV medium voltage drive, its power range is 3150kW to 7100kW; and its buffer cabinet is a standard accessory and is included in the content “Dimensions and weight of the medium voltage drive’ in the model selection table above. 3.For a 6kV medium voltage drive,...
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Installation requirements for CHH100 series medium voltage drive • Installation foundation of a medium voltage drive The medium voltage drive must be vertically installed on the concreted channel steel foundation. To meet the flatness requirement of the foundation, the allowance of every 1000mm is 1 mm. The weight distribution of the medium voltage drive must be considered forthe foundation. The foundation should be made of concrete and channel steel (specification: 10# at least). Technical Requirements 1. Take measures against flood, dust and vermin forthe trench. 2. The 10# channel steel...
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Technical solutions for the speed regulation of CHH100 series medium voltage drive • “one-driving-one” Manual Solution This solution ensures manual switching between a powerfrequency state and a variable frequency state for loads. Furthermore, the medium voltage isolating switch has an apparent isolation point, which • “one-driving-one” Automatic Solution With An Isolation Switch This solution ensures quick automatic switching between a powerfrequency state and a variable frequency state for loads and safe maintenance for the medium voltage drive. If the switching duration needed by...
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Benefits of medium voltage drive brought for customers (1) Saving electric energy effectively In production activities, fans and pumps are usually designed with their corresponding maximum duty and provided with larger margins based on the consideration of the efficiency reduction of equipment with time on. In practical production, motors work in power frequency and their flow and air volumes need to be adjusted by regulating the openings of valves and ventilation doors. As a result, a great deal of energy is consumed forovercoming the resistances of the valves, baffles and ventilation...
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