Installation Environment:
In order for the frequency converter to work stably, it must be ensured that the operating environment of the frequency converter meets the permissible environment as specified.
1. Installation location:
1) The electric room should have less moisture and no water immersion 2) no explosive, flammable or corrosive gas and liquid, less dust 3) maintenance inspection is easy 4) vent or ventilator should be provided to discharge the inverter Heat 2. Conditions of Use:
1) The operating temperature of the inverter is mostly: 0~40 or -10~50, pay attention to the ventilation of the inverter cabinet.
2) The ambient humidity of the inverter is 90% or less. The surrounding humidity is too high, and there is a problem of reduced electrical connection and corrosion of metal parts. If it is restricted by the installation site, the inverter must not be installed in a place with high humidity. The cabinet of the inverter should be sealed as much as possible. In order to prevent condensation when the inverter stops, sometimes the device needs to add a convection heater.
3) There should be no corrosive, explosive or flammable gases as well as dust and oil mist around the inverter. If there are explosive and flammable gases around the installation of the inverter, fires or explosions may occur due to the presence of spark-prone relays and contactors in the inverter. When there is corrosive gas, the metal part is corroded, which affects the long-term operation of the inverter. If dust and oil mist are present around the inverter, these gases will adhere and accumulate in the inverter, which will cause the edge to decrease. For the forced air-cooled inverter, the filter will clog and the temperature inside the inverter will rise abnormally, causing the inverter to fail. Stable operation.
4 The vibration resistance of the inverter should be different depending on the model. When the vibration exceeds the allowable value of the inverter, the parts with loose parts and the movable parts of the relay and contactor will malfunction. This will result in the inverter not being stable. run. For pre-visible vibrations such as machine tools and ships, the vibration of the inverter should be considered.
5 The elevation of the inverter is specified to be less than 1000m. If the elevation is high, the pressure will be high, and it will easily lead to the destruction of the joint. In addition, the elevation and high cooling effect are also reduced, and attention must be paid to the temperature rise.
Inverter wiring:
When variable frequency speed regulation is adopted in various factories and equipments, harmonic interference will occur on the power supply side and the motor side of the inverter, and EMC interference will be generated to the power supply grid and other electrical equipment around the inverter. In addition, in order to ensure long-term reliable operation of the inverter, the wiring of the inverter is very important.
An electric slip ring is a rotary electrical connector. It allows uninterrupted power or signal transfer between two stationary points. It is also known as an electric Rotary Joint, power swivel, or electrical rotary joint. Electric slip rings are usually composed of a metal ring with several brush contacts on the inner circumference. And there are one or more pairs of contacts for power or signals on the outer circumference. The metal ring can be rigid or flexible, depending on the application.
An electric slip ring is an electromechanical device that allows the transmission of electrical power and signals from a stationary to a rotating structure. It consists of an electrically conductive rotating disc or ring, with a number of electrical contacts (or "slots") on its surface. The contacts are connected to external circuits, enabling the passage of power and/or data from the stationary to the rotating structure. Slip rings are also used in generators, where they allow the passage of current from the rotor to the stator.
A flat disc electrical slip ring is one kind of electric slip ring, it has many advantages: simple construction, small size, low cost, easy installation, and maintenance. It is widely used in various fields such as machine tools, textile machinery, printing machinery, packaging machinery, medical equipment, and aerospace equipment.
A 360-degree rotating Conductive Slip Ring is also called a hollow shaft slip ring or hollow conduct. It has an opening in the center that allows a shaft to pass through, making it ideal for rotating applications. Slip rings are often used in medical equipment, robotics, and manufacturing assemblies where rotation is required. This type of slip ring can handle large currents and voltages while providing a continuous electrical connection.
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