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Help Center3AC 380V 3 Phase INVT Inverter 47Hz - 63Hz CHV160A Series , Pump Inverter
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3AC 380V 3 Phase INVT Inverter 47Hz - 63Hz CHV160A series , Pump Inverter
Description
CHV160A 3 phase INVT inverter is the enhanced edition of CHV160. It adopts the advanced control theory to adjust speed and switchover of pumps automatically according to the pressure of pipe net, so as to make the pressure to be constant.
Features
1.Timing rotation: to avoid pumps being seized by corrosion.
2. Optimized water supply PID regulator can accomplish the switching between two PID parameters.
3. CHV160A series special for multi-pumps water supply = PLC + pressure sensor + PID regulator + inverter . Supply fixed variable frequency pump mode (can define 1 fixed variable pump at most + 9 grid frequency pumps) and circular variable frequency pump mode(can define 4 circular variable frequency pumps at most + 2 grid frequency pump).
4. Flexible control logic of add and decrease the pumps, flexible dormancy pumps control.
5. Support 8 timeslots timing water-supply and 16 multi-step pressures setting.
6. For convenient debugging and maintenance, built-in manual soft-start debugging and manual round-robin debugging function.
7. Monitoring the pressure of pipe net, and alarm at abnormal status. Perfect fault protection: ground fault protection, short phase protection, etc.
8. Built-in standard Modbus communication protocol.
9. Built-in water-level detection and control function (for inlet pool and sewage pool).
Application:
The Application of INVT CHV160 Series Water Supply Specific Frequency Inverter
Abstract: Compared with traditional water supply system like water tank and water tower, constant pressure water supply system using frequency inverter has many advantages including energy saving, water saving, and no pollution to water resources etc. This paper systematically and comprehensively describes the characteristics of INVT-CHV160, frequency inverter special for water supply, and its application in constant pressure water supply system.
Keywords: frequency inverter constant pressure water supply PID control
Foreword:
Water is the most precious resource and the basic condition of survival for human being, as well as the lifeline of national economy, and water industry is a kind of special industry engaging into the sustainable exploring and using of water resource, which treats city and industry as target, and treats water quality as core, and aims to satisfy the water requirement for the social economy sustainable development. In the process of exploring, processing and conveying and using water, water supply equipment is indispensable tool.
Ⅰ Water supply status and constant pressure water supply equipment
Generally, it states that water pressure in city piping network can only guarantee water use in the building below the 6th storey, and it need lifting water pressure to satisfy water use requirements of the higher storey. Conventional method to lift water supply is using pressure increasing equipments like water tower, high position water tank or gas pressure tank, which is of high one-time investment expenses and usually increases the power of pump and energy consumption, because these equipments must use pumps to lift water, always with the pressure higher than actual requirement; meanwhile, it is liable to cause secondary pollution of the water when using the conventional water supply system.
Based on the requirements of water use in industrial production, human living, agriculture water saving irrigation projects etc, it is possible to using CHV160 series water supply specific frequency inverter can quickly assembly constant pressure water supply system, and it integrates frequency inversion speed regulation technology, PLC technology and PID control technology, which can form a complete close-loop automatic control system.
Ⅱ Constant pressure water supply principle
When water supply automation system is working, the equipment tests pressure change in water supply piping network along with the change of water use volume by highly sensitive pressure sensor installed in water supply piping network, which transmits changing signal to frequency inverter continuously, through judging and calculation by micro computer and setting pressure comparison, it will issue the instruction of changing frequency to the controller, and controller can change the rotation and starting set number of water pump motor through changing frequency, and automatically adjust water use volume in the bottom and peak, and guarantee the pressure of water piping network is constant to satisfy the requirements of water use for the users. CHV160 constant pressure water supply principle as follows:
Ⅲ The advantages of constant pressure water supply
Design conception of CHV160 series water supply specific frequency inverter originates from rich engineeri
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