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Operating characteristics and protection characteristics of secondary non-negative pressure water supply equipment
Time: 2020-02-06 17:28 Source: win of Water: Water factory in winning hits: Times

Operating characteristics and protection characteristics of secondary non-negative pressure water supply equipment

Operation status of secondary non-negative pressure water supply equipment:

The secondary non-negative pressure water supply equipment is based on the actual situation. By detecting the actual pressure and comparing it with the set pressure, when the municipal pipeline network overlap pressure is higher than the set pressure, the unit is in a shutdown state. Tap water can directly supply water to users through the municipal pipeline. When the water supply pressure of the pipe network is lower than the set pressure, the equipment automatically enters the superimposed working state. The unit consists of a closed-loop control system consisting of a pressure sensor, a water pump and a constant pressure variable frequency control cabinet. As the water consumption changes, the pump speed is continuously adjusted and put into operation. Number of pumps to keep the water supply pressure constant.

Protection characteristics of secondary non-negative pressure water supply equipment:

Overcurrent protection, I2t, overvoltage protection, undervoltage protection, overheating protection, short circuit protection, grounding protection, undervoltage buffering, motor under / overload protection, stall protection, serial communication fault protection, AI signal loss protection, etc.

The secondary non-negative pressure water supply equipment is compact in appearance and convenient to install. The secondary non-negative pressure water supply equipment has been certified by a variety of electrical safety standards, and complies with GE, UL, and quality certification systems ISO9001 and ISO4001.

The inverter's unique direct torque control (DTC) main function is the current best motor control method. The secondary non-negative pressure water supply equipment can directly control the core variables of all AC motors, and can achieve motor speed and speed without speed feedback. Precise torque control.

二次无负压供水设备 只需选择需要的应用宏,相应的所有参数都自动设置,输入输出端子也将自动配置,这些预设的应用宏配置大大节约了调试时间,减少出错。 The inverter has built-in eight application macros such as PID, PFC, and pre-flux. The secondary non-negative pressure water supply equipment only needs to select the required application macro. All corresponding parameters are automatically set, and the input and output terminals are automatically configured. These presets The application macro configuration greatly saves debugging time and reduces errors.

The method for secondary non-negative pressure water supply equipment has eight chapters, which fully explain the general rules, product raw materials, construction, system pressure test and acceptance, pipelines, water control systems, foundations, burial depth and identification of the piles. The application cases of the regulations are specified, requirements for storage, handling, and transportation of steel bars, cement, pipe materials, precast concrete piles, earthwork excavation, backfilling, pipeline connection, laying and maintenance details of equipment installation, concrete piles, hydraulic pressure test, flushing And disinfection, completion and acceptance procedures, pipelines, water control systems and foundations, grouting pile height, buried depth and identification.

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