快乐十分选5中3有钱吗

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快乐十分选5中3有钱吗 Variable frequency inverter (AC motor speed drive, VFD) manufacturer & supplier in China

Home » Products » Special AC Drives » Variable frequency converter for pumps

Special variable frequency converter (AC drive) for pumps

variable frequency converter (AC drive) for pumps

Overview

This special variable frequency converter (AC drive) for multi-pumps in constant pressure water supply, combines with the universal advanced hardware resource which was developed as the high performance variable frequency converter (AC drive) according to the market demands, it can drag a maximum 4 units AC motors(2 units for cycle start) without water supply controller/card, use one PID regulator to control the pumps through the feedback by pressure sensor, while a single one variable frequency pump can't control the flow range precisely. It offers excellent control solution and drive for customers in water supply and HVAC industries.

Main features of the variable frequency converter (AC drive) for pumps

• Power range: 7.5kW-400kW three phase
• Keep constant pressure under any flow
• Wide input range voltage: 304-456V, voltage fluctuate within ±20%
• Comprehensive water supply solution, flexible configuration for general pump, fire pump, dormancy pump, easy achieve to automatic cycle pumps mode(2 units AC motors) and fixed-pumps(4 units AC motors) for water supplying.
• Easy setting & debugging the pump through the variable frequency converter
• Switching the pump according to its working time to avoid attrition unequally.
• The system adopt one variable-speed pump and more constant-speed pumps (maximum 4 units) while the flow range can't be adjusted entirely by a simple variable speed pump.
• Special frequency converter (AC drive) for water supply=PLC + inverter + PID
快乐十分选5中3有钱吗 • Turn on/off subsidiary pumps according to the technical specification. Control the variable pump to allow flow changing continuously.

Applications

Concentrated water and heat supply in city, Water supply without negative pressure, Water & sewage treatment, Cycle cooling water system, Industrial boiler, Water supply in urban resident/residential area, Oil transportation pump, Water supply without tower

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