Hope Sunland inverter application introduction

Advantage 1: Energy saving The motor adopts frequency converter speed regulation, and its power can be improved by 5%-10%. The inverter accounts for 20%-30% of the total capacity of the communication motor in the drag of load equipment such as fans, pumps, extruders, mixers, etc., which has a significant energy-saving effect, because the consumption of the fan and water pump is significant.

The so-called "hum" sound, that is caused by the frequency of the inverter's output waveform carrier, generally if the inverter you use is a fixed carrier, at the moment the motor is screaming, the human ear is more stimulated, then you can adjust the carrier frequency (inverter skills manual function table ...

Prior to the introduction of frequency converters, overhead crane operators operated the cranes using contactor-based controls. For low-cycle cranes, the system is equipped with a single or two-speed motor. For cranes with higher load cycles, they use so-called wound rotor motors. ...

With the passing of time, the inverter has now fully penetrated into the work of major industries. In our daily use, we will inevitably encounter all kinds of problems. For example, I forgot the cipher code of the inverter. See here ...

Grid-connected photovoltaic inverter is one of the core components of solar photovoltaic power generation system, the main types are: central inverter, modular inverter, micro inverter, DC ...

Most VFDs are suitable for -10°C-50°C, and if the temperature is too low, the VFD will be affected. Precautions for low-temperature operation of VFD: 1. VFD should be operated in an environment above minus 10°C as much as possible, preferably indoors.

How does the hovering function of the inverter work? When the speed of the asynchronous motor is 0, the encoder response is meaningless, and it needs to be converted to V/F control, and the frequency is set to 0; The voltage is set to 0 speed at which the motor promises to withstand the current at the moment ...

The inverter is a motor control (speed regulation) device that uses the on-off effect of power semiconductor devices to convert the power frequency power supply to another frequency. Composition 1: 1. Rectifier unit: convert the communication electricity with fixed operating frequency into DC ...

Robot contactors are noisy? Cause: It is likely that the joint contact surface of the contactor is uneven, and the surface is sand or rust. The result will constitute a phase loss, which will lead to the burnout of contactors, switch frequency conversion and other components. Solution: will control the ...

The direct torque control (DTC) function of the inverter is another high-performance communication frequency conversion speed regulation system developed after vector control. In the mid-80s of the 20th century, the German scholar Depenbrock proposed the theory of direct torque control in 1985, and his idea was to combine the electric motor and the inverter.

The three-phase barrier transformer adopts a three-phase double-winding structure, which has the characteristics of lightning protection and anti-disturbance. Each winding on the primary and secondary sides is divided into two coils, which are wound from two layers of metal foil insulated from each other. So there is capacitance C (capacitance barrier transformer) between the two coils. Then, being able to ...

Investigation of the function of the inverter system Before debugging the frequency converter, it is necessary to carefully read the operation instructions and related information of the inverter to be debugged to understand the application environment and precautions. Especially before the inverter is energized, it is necessary to carefully observe and see if the inverter has obvious problems.

First, the inverter is not repaired and the power test is tested (1) Inverter repair test rectifier circuit At the two ends of the inverter to detect the internal DC power supply, P and N ends, adjust the multimeter to the resistance RX10 gear, the red watch pen is connected to the P end, and the black watch pen is connected to R, S, T in turn.

There are many special faults, which come and go, looming, making it impossible to judge and deal with. At this time, you can clean the circuit board with water or alcohol, and brush off the dust and rust on the circuit board with a soft brush, especially pay attention to the solder joints are dense, and the circuit near the 0 volt copper layer is also ...

Er.ocb (1) Overcurrent at the moment of starting: There is a short circuit inside the motor There is a short circuit in the motor wiring The starting voltage is too high Check the motor and wiring Check the motor wiring Seek service Check the torque boost settings ...

In order to thoroughly implement the spirit of General Secretary Xi Jinping's important instructions that the economic power must be a maritime power, a shipping power, economic development, a strong country, and transportation, especially shipping, and the implementation of the outline for the construction of a transportation power, the port ship shore power system has become the standard for green ports.

The operating principle of the inverter determines that it will have a certain disturbance, which may bring EMC (electromagnetic compatibility) problems to the equipment or system, and the inverter, as an electronic device, will also be affected by external electromagnetic disturbance. Below...

The external terminals of the inverter, RH, RM, RL, are speed control terminals. Through the combination of these terminals, three-speed and seven-speed control can be completed. In addition, the other terminals can be redefined, and the fifteen-speed speed can be controlled. ...

The difference between a voltage converter and a current converter Voltage inverter and current inverter are two different operating principles, for example, the operating principle of voltage inverter is mainly to regulate the voltage source, and the voltage source regulates the current to achieve the effect of conditioning, while the current inverter is a direct ...

The rotational speed of an induction AC motor (henceforth referred to as a motor) is approximately determined by the number of poles and frequency of the motor. The number of poles of the motor is fixed by the operating principle of the motor. Since the number of poles is not a successive value (a multiple of 2, e.g. 2,4,6), ...